Over the last 67 years, we have become a reflection of the strength and purpose that today represent Indian Industry and its growing power internationally. Bharat Bijlee has evolved from a pioneer of electrical engineering in India to one of the most trusted names in the industry. Our portfolio of products and services includes Power Transformers, Projects, Motors, Drives and Elevator Systems and caters to a spectrum of industries and the builders of the nation's infrastructure: Power, Refineries, Steel, Cement, Railways, Machinery, Construction and Textiles. Our products must perform faultlessly and we must fulfill the most demanding delivery schedules. We value innovation and are proud of the customer - centric outlook that enables us to develop specialised solutions for a wide range of utility and industrial markets. Our plant near Mumbai & our extensive network of Sales and Service offices are integrated by enterprise - wise management and information systems. Technology and innovation coverage to offer our customers integrated solutions that meet their specific needs. We are growing; expanding both our manufacturing range and capacities, venturing into related diversifications and exploring new markets with new partners. Transformers Projects LT Motors 0.12kW to 1250 kW, up to 690V MV Motors 160kW to 1000kW, up to 6.6kV Drives Elevator Systems LOW VOLTAGE MOTORS 0.12kW to 1250kW Crane & Hoist Duty Motors
Transcript
Over the last 67 years, we have become a reflection of the strength and purpose that today represent Indian Industry and its growing power internationally. Bharat Bijlee has evolved from a pioneer of electrical engineering in India to one of the most trusted names in the industry. Our portfolio of products and services includes Power Transformers, Projects, Motors, Drives and Elevator Systems and caters to a spectrum of industries and the builders of the nation's infrastructure: Power, Refineries, Steel, Cement, Railways, Machinery, Construction and Textiles.
Our products must perform faultlessly and we must fulfill the most demanding delivery schedules. We value innovation and are proud of the customer - centric outlook that enables us to develop specialised solutions for a wide range of utility and industrial markets. Our plant near Mumbai & our extensive network of Sales and Service offices are integrated by enterprise - wise management and information systems. Technology and innovation coverage to offer our customers integrated solutions that meet their specific needs. We are growing; expanding both our manufacturing range and capacities, venturing into related diversifications and exploring new markets with new partners.
Transformers Projects
LT Motors 0.12kW to 1250 kW, up to 690V
MV Motors 160kW to 1000kW, up to 6.6kV
Drives Elevator Systems
LOW VOLTAGE MOTORS
0.12kW to 1250kW
Crane & Hoist Duty Motors
Complete range of BBL motors from frame 56 to 450 (0.12kW to 1250kW) suitable for all applications across industries.
INDEXINDEXINDEX
C. CRANE AND HOIST DUTY MOTORS Technical Information
1. Crane Duty Motors a. Technical Information b. Performance Table c. Performance Table d. General Arrangement Drawing
2. Slipring Crane Duty Induction Motors a. Technical Information b. Performance Table c. General Arrangement Drawing
3. Cane Unloader Motors a. Technical Information b. Performance Table c. General Arrangement Drawing
4. Brake Motors a. Technical Information b. Performance Table c. General Arrangement Drawing
Annexure
1
12
35
41
47
PRODUCT RANGEBharat Bijlee manufactures a complete range of three phase squirrel cage induction motors.
Medium Voltage Motors 355 to 450 160 to 1000 2,4,6,8
---- ----
---- ----
---- ----
Slip ring Motors 100 to 160 1.1 to 10 4,6
Brake Motors 71 to 132 0.25 to 9.3 2, 4, 6, 8
Bharat Bijlee make crane and hoist duty motors are ideally suitable for short time and intermittent duties. These motors are specially designed for frequent starts/stops and reversals.Major ApplicationThese motors are widely used in following applications:• Crane duty and Hoist duty application including LT & CT drives• Material Handling • Weirs and Sluices• Lift Duty • Auxiliary motors in rolling mills
Product Range
Frame Size
71 to 355L
kW Range
0.37 to 400
StandardsIn general these motors conform to following standards
IS : 325
IS : 1231
IS : 2223
Three Phase Induction motors specification
Dimensions of foot mounted A.C induction motors
Dimensions of flange mounted A.C Induction motors
CE MarksAll motors have CE marking on the nameplate.
AmbientMotors are designed for ambient temperature of
045 C.
Altitude Motors are designed for altitude up to 1000m above mean sea level.
Re-rating FactorsThe re-rating applicable under different conditions of ambient and altitude are obtained by multiplying following factors.
Amb.Temp.
(°C)
Permissible output as % of rated
value
≤ 30 107
30-45 100
50 96
55 92
60 87
Altitude above
sea level (meters)
Permissible output as % of rated
value
1000
1500
2000
2500
3000
3500
4000
100
97
94
90
86
82
77
InsulationThe motors are provided with class F insulation scheme with temperature rise limited to class B limits.
WindingThe stators are wound with modified polyester enamel covered (Temp class 155°C) copper wires as per IS 13730:3 and impregnated with class F varnish. However motors wound with dual coated copper wires and VPI can be provided on request.
All Motors in 315S frame & above are wound with dual coated winding wire (thermal class 200°C) as per IS 13730:13 and all are impregnated with VPI process.
Thermal Protection (for Winding & Bearing)PTC thermistors / thermostats/ RTDs etc. can be embedded in stator winding on request.
In case of frame sizes 250M & above bearing temperature detectors (BTD) can be supplied on request.
Earthing TerminalsTwo earthing terminals are provided, one on the body and other in the terminal box.
Anti- condensation MethodIn order to avoid condensation of water inside the motors they can be heated up by connecting voltage 4% to 10% of rated voltage to the motor terminals. Adequate heating is obtained with current equal to 20-25% of rated motor current. Alternatively any method as indicated in IS: 900 for heating the stator winding could be adopted. Motors can also be offered with built in space heaters in frame sizes 90S and above.
Variation in Ambient & Altitude
Table 1
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
1
MECHANICAL FEATURES Enclosures: (Material & T Box Location)
Degree of Protection All motors have IP55 degree of protection as per IS:4691. Higher degree of protection such as IP56, IP66 can be offered on request. All flange mounted motors are additionally provided with oil tight shaft protection on driving end side.
Note: For more details, refer to annexure II on page no. 121.
Cooling All motors are totally enclosed Fan Cooled (TEFC). The cooling is effected by self driven, bi-directional centrifugal fan protected by fan cover. The Type of cooling is IC411 as per IS: 6362-Motors with natural ventilation(TENV) or with forced cooing arrangement can be offered on request.Minimum cooling distance as indicated in GA Drawing has to be provided for effective cooling of the motor.Note: For more details, refer to annexure I on page no. 120.
Type of ConstructionStandards motors are designed for foot mounting (B3). are also suitable for Motors up to frame 355B6, B7, B8, V5 and V6 mounting.
Motors can be supplied in Flange mounting (B5). Flange mounted motors up to frame 355 are also suitable for V1 and V3 mounting.
*3 Terminals up to and including 1.5kW & 6 terminals for higher outputs
Special Design Features• Increased air gap between stator and rotor• Special rotor design
Types of DutiesThe various operating cycles of driven machines can be classified into nine basic duties, ranging from S1 to S9 They are as follows:
S1Continuous duty
S2 Short time duty
S3 Intermittent periodic duty
S4 Intermittent periodic duty with starting
S5 Intermittent periodic duty with starting and electric braking
S6
S7
Continuous duty with starting andelectric braking
S8
Continuous duty with speed periodic changes
Continuous duty with Intermittentperiodic loading
Table 3
Table 4
Bearing Nos. C3
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
2
A) S2-Short Time DutyThis includes a period of operation at constant load which are too short to attain thermal equilibrium, followed by rest period of sufficient duration to re-establish equality of temperature with cooling medium in one cycle.
N� = Operation under rated conditions.
R� = At rest de-energized
= Maximum temperature attained during
the duty cycle.
B) S3- Intermittent Period Duty This includes a period of operation at constant load and a de-energized period, which are too short to attain thermal equilibrium during one cycle. The starting current does not significantly affect the temperature rise for this type of duty.
C) S4- Intermittent Periodic Duty with Starting
This includes a period of starting, a period of operation at constant load and a de-energized period, which is too short to attain thermal equilibrium during one cycle. The starting affects
2temperature rise, as load GD is higher than rotor 2
GD and/ or no. of start/hour is high, for this type of duty. The motor is stopped after switching off either by natural deceleration, or by a mechanical Brake, without additional heating of the windings
D) S5- Intermittent Periodic Duty with Starting and Electrical BrakingThis includes a period of starting, a period of operation at constant load, a period of electrical braking, and de-energized period which are too short to attain thermal equilibrium during one duty cycle. It is understood that the starting affect temperature rise, as in (c) above, and the stopping also affects temperature rise as braking is carried out electrically.
We also supply motors for special types of duties, on enquiry including multi-speed motors with squirrel cage rotors.
The common Cyclic Duration Factors (CDF) for the above duties are 25%, 40% and 60%. We also supply, on enquiry, motors for other CDF's. The CDF calculations are shown in figures 1(a), 1(b), 1(c), 1(d).
0Max
0Max
0Max
0Max
0Max
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
3
Selection of motors for hoist motionsFor hoisting motor, the power required shall not be less than that computed from the following:
kW = —---------------- X -----------
Where, derating factor will be taken as 12%,kW = One hour power rating for DC motors & power rating at (S-40%) cyclic duration factor for AC motors
M = Mass of rated load on hook plus weight of hook block & wire ropes in tones
V = Specified hoisting speed in m/min
E = Combined efficiency of gears & sheaves = (0.93)n × (0.98)m for sleeve bearings = (0.95)n × (0.99)m for antifriction bearings = (0.985)n × (0.99)m for hardened profile ground & oil splashed lubricator, where
n = Number of pairs of gears
m = Total number rotating sheaves passed over by each part of the moving rope attached to the drum
C = Service factor for vertical motionv
depending on type of motors, = 0.67 for AC motors,
Where sufficient information is not available values given in table 6 below for duty cycles, cyclic duration factor & starting corresponding to mechanism class shall be used. The values given are based on the following formula:
Operating time X 100---------------------------------------
Refer above table for example of typical starting duties and selection of starting class. Table given
2 2here are for load GD ≤ rotor GD . For cases where load GD² >rotor GD² the motor should be selected from the table with a higher no. of starts/hr. as per the formula.
No. of starts allowed =No. of starts as per table×2× GD² of rotor/ (GD² of rotor + GD² of load).
= 0.5 for DC motors
CDF = Cyclic duration factor
C = Derating factor for ambient temperatureamb
as per table 1.
For an AC hoist motor, the specified full load hoist speed must be obtained at not more than rated
Table 5CDF =
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
4
Selection of Motors for Crane Travel or Trolley Traverse:
For bridge travel or trolley traverse the power of the motor required shall not be less than that computed from the following:
kW = MVSCDF
6117T×
(F+1100a)981N
For indoor cranes
kW =
MVSCDF
6117T×
(F+1100a)
981N +
6117T
R Vw
where,kW� = One hour power rating for DC motors & power rating at 40 percent cyclic duration factor for AC motors.
M� = Mass of crane or trolley plus mass of max rated load in tonnes.
V� = Specified free running speed m/min.
N = Mechanical efficiency of gearing. For spur & helical gears it can be taken as 0.95 per reduction.
T = Factor introduced by the permissible motor torque during acceleration exceeding the motor rated torque. As a general guidance value of T may be taken as 1.7 for motor having pull out torque of 275 percent full load torque. Lower value of T should be taken for corresponding lower value of pull out torque.
= 1.3 of d.c motor pull out torque *100
= 1.6 for a.c motor 160*full load torque
For outdoor cranes
Table 7
Acceleration in cm/s² Low &
Moderate speed with Long Travel
Acceleration in cm/s² for Moderate &High speed
(Normal Application)
Acceleration in cm/s² for High speed with High
Acceleration
Speedto be
reachedm/min
240 - 50 67
190 - 44 58
150 - 39 52
120
100
60
40
25
15
10
22
19
15
12
10
8
7
35
32
25
19
16
-
-
47
43
33
-
-
-
-
Selection of Motors for Crane Travel or Trolley TraverseIt is assumed that the drive mechanism from the motor to the track wheels will use enclosed gearings mounted on anti-friction bearings. The actual efficiency of the drive will be adopted in making calculations. Where actual efficiency values are not available, the efficiency of the drive shall be taken in the range of 0.85 to 0.9.
For the track wheel with anti-friction bearings the rolling friction at these bearings plus the friction between the track wheels with an average drive efficiency of 0.875 will give an overall friction factor of 8.0 kgf per tonne of the mass moved for calculation of the motor horse power or torque. In the case of wheels with the plain bearings an overall friction of 13.0 kgf per tonne of the mass moved may be used.
F = Overall friction factor
= 8kgf per tonne for wheel on anti friction bearing.
= 13 kgf per tonne for wheels on plane bearings
CDF = Cyclic duration factor
R = Load due to service wind acting horizontally,w
which can be obtained by multiplying the horizontal exposed area by the service wind by taking drag co-efficient into consideration.
A = Average linear acceleration of the crane of2
the trolley in cm/s till the mechanism reaches 90% of free running speed for the value of average linear acceleration refer table 7S = Service factor aimed at providing adequate motor heat dissipation capacity as given in table 7
Acceleration values
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
5
1. Details of Crane:a. Class of craneb. Type of cranec. Tonnage of craned. Operating speede. Type of motion: Hoisting, Travelling or Traversing
2. Electrical Features:a. Motor Outpt (kW) and Polarityb. Supply voltage and frequency with variationsc. Type of Rotor: Squirrel Cage / Slipringd. Class of Insulation and ambient temperaturee. Method of startingf. Requirement of starting torque, pull out torque, starting currentg. Load torque of the driven equipmenth. In case of Slipring motors rotor voltage and rotor current is to be specified
3. Operational Details:
a. Duty type : S2,S3,S4 or S5b. Duty cycle details preferably with a sketch if different from S2, S3, S4 or S5.c. No. of starts per hourd. Method of braking: plugging, DC injection/ mechanical brakee. No. of reversals per hourf. Cyclic duration factor (CDF)g. Load inertia referred to motor speed (GD²)
4. Mechanical Features:a. Enclosureb. Degree of protectionc. Mountingd. Fixing dimensions
(If Bharat Bijlee standard motor fixing dimensions are not applicable, please let us know your specific requirements, preferably with a drawing)e. Shaft extension: Requirement of shaft extension if any, needs to be mentioned f. Any other relevant data
VFD Crane Duty MotorsThe growing need for energy saving and accurate control has resulted in increased demand for VFD operated Crane Duty Motors. It has advantage over traditional Slipring Motor on speed range with low maintenance leading to reduced Life Cycle Cost. Current control of VFD Driven motors is better than Standard TEFC SCR Motors. Crane / Hoist Duty Motors call for the Constant Torque application and the speed range varies from 10% to 100% of the synchronous speed.
Bharat Bijlee Inverter Duty Crane and Hoist Motors are provided with special insulation system suitable to withstand voltage spikes when run on VFD. The selection of frame size for various duty type and starts shall be as per the selection table enclosed. These motors have following special features:• Dual Coated Winding Wire• Vacuum Pressure Impregnation
Standard Features:Voltage: 220 to 690 VoltsFrequency: 50 / 60 Hz
0Ambient: 45 CAltitude: 1000 meters above mean sea level.Insulation: Class F / H (Temperature rise limited to Class B) Bharat Bijlee Motors are suitable for the following IGBT Drive output• High Frequency in the range of 3kHz – 6kHz• Voltage rise time > 0.1 sec• Voltage spikes up to 1600V and rise time of 0.1 sec• THD < 3%
Bharat Bijlee motors from 315 frame and above are inherently suitable for VFD operation.
Motors with Integral Brakes These motors can be supplied with integral fail safe D.C. brake in frame sizes up to 132, with built in rectifiers (so that no separate DC supply is required for brake part).For more details refer brake motors section of the catalogue.
Flame-proof Crane Duty MotorsMotors suitable for intermittent duty operation can be offered in frame sizes MJ80, MJ 90, MJ 100, MJ 112 and MJ 132. for enquiry please refer to our sales office.
EnquiriesWhen making an enquiry or placing an order for crane duty motor, please furnish the following information. This will enable us to supply most suitable motor for your cranes and hoists.
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
Note: For more details, refer to page 6, 7, 8, 9, 10 and 11 of Industrial Motors Technical Information section.
6
CRANE AND HOIST DUTY MOTORSCRANE AND HOIST DUTY MOTORSTECHNICAL INFORMATION
7
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tors
Cra
ne &
Ho
ist
du
ty w
ith
DO
L S
tart
ing
F
r. 7
1 t
o 3
55L
0A
mb
ien
t : 4
5C
D
uty
: S
3 / S
4
With
DO
L S
tart
ing
1
500
rp
m (
4-P
ole
)
40
%
CD
F
60
Sta
rts/
hr.
60
% C
DF
30
0 S
tart
s/ h
r.
40
%
CD
F6
0 %
CD
F
15
0 S
tart
s/ h
r.
40
%
CD
F6
0 %
CD
FF
ram
esiz
eT
ype R
ef.
Ne
tW
t.
B3
Co
nst
.kg
IEC
B3
Co
nst
ruct
ion
Ro
tor
GD
²kg
m²
71
MC
071433
0.0
033
7
80
MC
080413
0.0
061
10
80
MC
080433
0.0
072
11
90S
MC
09S
433
0.0
120
14
90L
MC
09L453
0.0
160
17
100L
MC
10L453
0.0
260
27
112M
MC
11M
453
0.0
58
35
132S
MC
13S
4G
30.1
27
56
132M
MC
13M
4P
30.1
43
68
160M
MC
16M
4A
30.1
41
93
160M
MC
16M
4C
30.1
77
103
160M
MC
16M
4F
30.1
93
107
160L
MC
16L4P
30.2
65
132
180L
MC
18L473
0.5
40
188
200L
MC
20L433
0.8
60
270
225S
MC
22S
413
1.3
2328
225M
MC
22M
433
1.6
0362
250M
MC
25M
413
2.8
3475
280S
MC
28S
413
5.0
0653
280M
MC
28M
433
6.0
0713
315S
MC
31S
413
8.7
902
315M
MC
31M
433
10.2
1010
315L
MC
31L453
12.2
1185
315L
MC
31L463
13.4
1262
315L
MC
31L473
14.6
1305
355L
MC
35L413
17.7
61290
355L
MC
35L433
32.7
01855
355L
MC
35L453
38.2
02050
Perf
orm
an
ce t
ab
le f
or
4-P
ole
mo
tors
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E A
ND
HO
IST
DU
TY W
ITH
DO
L ST
AR
TIN
G
8
Ins. C
lass : F
Tem
p. R
ise : B
Pro
tectio
n : IP
55
V
olta
ge :
415V
± 1
0%
F
requency
: 50H
z ±
5%
C
om
bin
ed V
ariatio
n :
± 10%
Fra
me
siz
eT
ype R
ef.
Ra
ted
Sp
ee
d
Sta
rtin
g
Cu
rre
nt
Sta
rtin
gT
orq
ue
Pu
llou
tT
orq
ue
Ro
tor
GD
²
Ne
tW
t.
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
RP
Mto
Ra
ted
Cu
rre
nt
Ra
tio
to R
ate
dT
orq
ue
Ra
tio
to R
ate
dT
orq
ue
Ra
tio
B3
Co
nst.
kgIE
C
B3
Co
nstr
uct
ion
kW
kW
kWkW
kg
m²
71
MC
07
16
33
0.3
71
.43
0.4
50
.37
1.4
30
.45
0.3
71
.43
0.4
50
.37
1.4
30
.45
80
03
.01
.70
1.9
00
.00
38
7
80
MC
08
06
13
0.5
52
0.6
50
.55
20
.65
0.5
52
0.6
50
.55
20
.65
83
03
.51
.90
2.2
00
.00
60
10
80
MC
08
06
33
0.7
52
.70
.85
0.7
52
.70
.85
0.7
52
.70
.85
0.7
52
.70
.85
86
03
.52
.25
2.5
00
.00
84
11
90
LM
C0
9L
6A
31
.13
1.2
1.1
31
.21
.13
1.2
1.1
31
.29
00
4.0
2.3
02
.60
0.0
16
01
7
90
LM
C0
9L
65
31
.54
.21
.61
.54
.21
.61
.54
.21
.61
.54
.21
.62
90
04
.02
.30
2.7
50
.01
60
17
10
0L
MC
10
L6
53
2.2
6.5
2.3
2.2
6.5
2.3
2.2
6.5
2.3
2.2
6.5
2.3
92
04
.52
.25
2.7
50
.02
92
7
112
MM
C11
M6
53
3.7
9.1
3.9
3.7
9.1
3.9
3.7
9.1
3.9
3.7
9.1
3.9
29
20
5.0
2.2
52
.75
0.0
65
33
13
2S
MC
13
S6
G3
5.5
13
.55
.75
.51
3.5
5.7
5.5
13
.55
.75
.51
3.5
5.7
39
35
5.5
2.3
02
.75
0.1
30
52
13
2M
MC
13
M6
T3
7.5
18
.87
.87
.51
8.8
7.8
6.5
16
.36
.86
.51
6.3
6.8
93
55
.52
.30
2.7
50
.19
37
1
16
0M
MC
16
M6
33
9.3
21
9.7
81
88
.39
.32
19
.78
18
.18
.39
35
6.0
2.3
02
.75
0.2
76
10
3
16
0L
MC
16
L6
63
112
411
.51
0.2
22
.31
0.6
112
411
.51
0.2
22
.31
0.6
93
56
.02
.30
2.7
50
.34
113
16
0L
MC
16
L6
73
13
29
13
.51
22
71
2.5
13
29
13
.51
22
71
2.5
93
56
.02
.25
2.7
50
.40
12
3
18
0L
MC
18
L6
33
17
35
17
.21
63
31
6.2
16
33
16
.21
53
11
5.2
96
06
.02
.30
2.6
00
.82
19
0
20
0L
MC
20
L6
33
22
42
22
.12
03
82
0.1
20
38
20
.11
8.5
35
.11
8.6
97
06
.02
.30
2.5
01
.20
25
4
22
5M
MC
22
M6
23
30
55
30
.12
85
13
0.1
28
51
.32
8.1
26
47
.72
6.1
97
06
.02
.30
2.5
02
.10
33
6
25
0M
MC
25
M6
03
37
66
37
.03
46
03
4.0
34
60
.23
4.0
30
53
.13
0.0
97
56
.02
.30
2.5
03
.51
45
8
28
0S
MC
28
S6
13
45
82
45
.04
07
34
0.0
40
70
.24
0.0
37
65
.03
7.0
97
56
.02
.30
2.5
05
.11
57
3
28
0M
MC
28
M6
33
52
93
51
.74
88
64
7.7
48
85
.54
7.7
45
80
44
.79
80
6.0
2.3
02
.50
6.1
66
20
31
5S
MC
31
S6
13
70
12
36
9.2
65
114
64
.36
511
56
4.3
60
10
65
9.3
98
56
.02
.30
2.5
01
0.7
83
0
31
5M
MC
31
M6
33
85
15
18
4.1
80
14
27
9.1
80
14
27
9.1
75
13
37
4.2
98
56
.02
.30
2.5
01
2.4
91
2
31
5M
MC
31
M6
53
10
21
78
10
0.6
95
16
69
3.7
95
16
69
3.7
90
15
78
8.7
98
86
.02
.30
2.5
01
5.5
10
10
31
5L
MC
31
L6
73
12
52
17
12
3.2
12
02
08
118
.31
20
20
811
8.3
110
19
11
08
.49
88
6.0
2.3
02
.50
18
.011
75
31
5L
MA
31
L6
93
15
02
60
14
7.9
14
22
46
14
0.0
14
22
46
14
0.0
13
22
29
13
0.1
98
86
.02
.30
2.5
02
1.5
12
31
35
5L
MC
35
L6
A3
16
82
94
16
5.3
16
02
80
15
7.4
16
02
80
15
7.4
15
02
63
14
7.6
99
06
.02
.20
2.5
02
8.7
16
70
35
5L
MC
35
L6
13
18
53
26
18
2.0
17
53
08
17
2.2
17
53
08
17
2.2
16
02
82
15
7.4
99
06
.02
.20
2.5
02
8.7
16
70
35
5L
MC
35
L6
33
23
54
14
23
1.2
22
53
96
22
1.4
22
53
96
22
1.4
21
03
70
20
6.6
99
06
.02
.20
2.5
03
5.5
17
80
35
5L
MC
35
L6
53
28
04
93
27
5.5
26
54
66
26
0.7
26
54
66
26
0.7
24
04
22
23
6.1
99
06
.02
.20
2.5
04
3.3
20
00
Note
: D
era
ting fact
ors
of
moto
r ra
tings
for
hig
her
am
bie
nt
tem
pera
ture
s are
as
giv
en
in t
he
cata
logu
e f
or
Cra
ne
& H
ois
t D
uty
- C
CB
1/A
30
0 S
tart
s/ h
r.
40
%
CD
F6
0 %
CD
F
15
0 S
tart
s/ h
r.
40
%
CD
F6
0 %
CD
F
TE
FC
3 P
hase S
qu
irre
l C
ag
e I
nd
ucti
on
Mo
tors
Cra
ne &
Ho
ist
du
ty w
ith
DO
L S
tart
ing
F
r. 7
1 t
o 3
55L
With
DO
L S
tart
ing
0A
mb
ient
:
4
5C
D
uty
:
S
3 /
S4
1
000 r
pm
( 6
-Po
le)
Perf
orm
an
ce t
ab
le f
or
6-P
ole
mo
tors
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E A
ND
HO
IST
DU
TY W
ITH
DO
L ST
AR
TIN
G
9
V
olta
ge
:
4
15
V ±
10
% F
req
ue
ncy
:
50
Hz
± 5
%
C
om
bin
ed
Va
ria
tion
: ±
10
%
Ins.
Cla
ss : F
Tem
p. R
ise
: B
Pro
tect
ion : IP
55
Fra
me
Typ
e
size
Re
f.R
ate
dS
pe
ed
Sta
rtin
g
Sta
rtin
gP
ullo
ut
To
rqu
eC
urr
en
tT
orq
ue
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
To
rqu
ekg
.m
Ra
ted
Cu
rre
nt
Am
ps.
Ra
ted
T
orq
ue
kg.m
RP
Mto
Ra
ted
to R
ate
dto
Ra
ted
IEC
B
3
kWkW
kWkW
C
urr
en
tT
orq
ue
To
rqu
eC
on
stru
ctio
n
Ra
tioR
atio
Ra
tio
Ro
tor
GD
²kg
m²
Ne
tW
t.B
3C
on
st.
kg
90S
MC
09S
8A
30.3
71.4
30.5
0.3
71.4
30.5
0.3
71.4
30.5
0.3
71.4
30.5
700
3.0
2.0
02.3
00.0
11
13
90S
MC
09S
813
0.5
52.1
50.8
0.4
51.7
60.6
0.5
52.1
50.8
0.4
51.7
60.6
680
3.0
1.8
02.1
00.0
11
13
90L
MC
09L853
0.7
52.7
61.1
0.7
52.7
61.1
0.7
52.7
61.1
0.6
52.3
90.9
680
3.0
2.0
02.4
00.0
14
14
100L
MC
10L813
1.1
3.4
1.6
1.1
3.4
1.6
1.1
3.4
1.6
0.9
2.7
81.3
655
3.5
1.8
02.0
00.0
23
18
100L
MC
10L833
1.5
4.9
52.1
1.5
4.9
52.1
1.5
4.9
52.1
1.1
3.6
31.6
680
3.5
2.0
02.3
00.0
27
22
112M
MC
11M
833
2.2
6.8
3.1
2.2
6.8
3.1
2.2
6.8
3.1
1.5
4.6
42.1
700
4.0
2.0
02.3
00.0
632
132S
MC
13S
8G
33.7
8.8
5.1
3.7
8.8
5.1
3.7
8.8
5.1
37.1
44.1
710
4.0
2.0
02.3
00.1
33
69
160M
MC
16M
833
5.5
12
7.5
5.5
12
7.5
5.5
12
7.5
4.5
9.8
26.2
710
5.0
2.1
02.4
00.2
99
106
160L
MC
16L873
7.5
16
10.3
6.5
13.9
8.9
6.5
13.9
8.9
612.8
8.2
710
5.5
2.2
52.5
00.4
011
9
180M
MC
18M
813
9.3
20
12.8
8.5
18.5
11.7
8.5
18.5
11.7
7.5
16.5
10.3
710
5.5
2.2
52.5
00.6
2177
180L
MC
18L833
1123
15.1
9.3
19.4
12.8
9.3
19.5
12.8
8.5
17.8
11.7
710
5.5
2.2
52.5
00.7
2182
200L
MC
20L833
15
28.8
20.3
13
25
17.6
13
25.0
17.6
1121.1
14.9
720
5.5
2.3
02.3
01.3
2282
225S
MC
22S
813
18.5
37.5
25.0
17
34.5
23.0
17
34.5
23.0
15
30.4
20.3
720
5.5
2.2
52.5
01.9
5329
225M
MC
22M
833
22
44.5
29.8
20
40.5
27.1
20
40.5
27.1
18.5
37.4
25.0
720
5.5
2.2
52.5
02.4
1369
250M
MC
25M
813
30
56
40.0
26
48.5
34.7
26
48.5
34.7
22
41.1
29.4
730
5.5
2.3
02.5
03.7
2472
280S
MC
28S
823
37
71
49.4
34
65.2
45.4
34
65.0
45.4
30
57.6
40.0
730
5.5
2.2
52.4
05.8
3615
280M
MC
28M
853
45
86
60.0
40
76.4
53.4
40
76
53.4
37
71
49.4
730
5.5
2.2
52.4
06.8
6665
315S
MC
31S
813
55
108
72.9
50
98.2
66.3
50
98
66.3
45
88
59.6
735
6.0
2.2
52.4
010.7
833
315M
MC
31M
833
75
148
99.4
67
132
88.8
67
132
88.8
60
118
79.5
735
6.0
2.2
52.4
012.4
912
315M
MC
31M
853
90
175
119.3
80
156
106.0
80
156
106.0
75
146
99.4
735
6.0
2.2
52.4
015.5
1010
315L
MC
31L873
110
214
145.8
100
195
132.5
100
195
132.5
90
175
119.3
735
6.0
2.2
52.4
018.0
1170
315L
MC
31L893
132
257
174.9
125
243
165.6
125
244
165.6
115
224
152.4
735
6.0
2.2
52.4
021.5
1340
355L
MC
35L813
160
300
210.6
150
281
197.4
150
281
197.4
140
263
184.3
740
6.0
2.0
02.3
028.7
1670
355L
MC
35L8B
3180
337
236.9
170
318
223.8
170
318
223.8
155
290
204.0
740
6.0
2.2
02.4
035.5
1780
355L
MC
35L833
185
347
243.5
175
328
230.3
175
328
230.3
160
300
210.6
740
6.0
2.0
02.3
035.5
1780
355L
MC
35L853
210
394
276.4
200
375
263.2
200
375
263.2
180
338
236.9
740
6.0
2.0
02.3
035.5
1780
No
te: D
era
ting
fa
cto
rs o
f m
oto
r ra
ting
s fo
r h
igh
er
am
bie
nt te
mp
era
ture
s a
re a
s g
ive
n in
th
e c
ata
log
ue fo
r C
ran
e &
Ho
ist D
uty
- C
CB
1/A
TE
FC
3 P
hase S
qu
irre
l C
ag
e In
du
cti
on
Mo
tors
Cra
ne &
Ho
ist
Du
ty w
ith
DO
L S
tart
ing
F
r. 7
1 t
o 3
55L
0A
mb
ien
t : 4
5C
D
uty
: S
3 / S
4
With
DO
L S
tart
ing
7
50
rp
m (
8-P
ole
)
30
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
15
0 S
tart
s/
hr.
40
%
CD
F6
0 %
CD
FPerf
orm
an
ce t
ab
le f
or
8-P
ole
mo
tors
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E A
ND
HO
IST
DU
TY W
ITH
DO
L ST
AR
TIN
G
10
Vo
ltag
e
: 4
15
V ±
10
%
Fr
equ
ency
: 50
Hz
± 5
%
C
om
bin
ed V
aria
tio
n
: ±
10
%
Typ
eR
ef.
Star
tin
g St
arti
ng
Pu
llou
t
Cu
rren
tTo
rqu
eTo
rqu
e
Rat
ed
Cu
rren
tA
mp
s.
Rat
ed
Torq
ue
kg.m
Rat
ed
Cu
rren
tA
mp
s.
Rat
edTo
rqu
ekg
.m
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
ekg
.m
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
ekg
.m
Rat
edSp
eed
RP
Mto
Rat
edto
Rat
edto
Rat
edB
3
kWkW
kWkW
C
urr
ent
Torq
ue
Torq
ue
Co
nst
ruct
ion
Rat
ioR
atio
Rat
io
MC
07
143
30.
55
1.5
60.
41
0.5
51.
56
0.4
10
.55
1.5
60
.41
0.5
51.
56
0.4
11
31
03
.72
.25
2.7
5
MC
08
041
30.
75
1.8
0.5
50.
75
1.8
0.5
50
.75
1.8
0.5
50.
75
1.8
0.5
51
34
04
.52
.30
2.7
5
MC
08
043
31.
13.
10.
80
1.1
3.1
0.8
01
.13
.10
.80
1.1
3.1
0.8
01
36
55
.02
.30
2.8
0
MC
09
S433
1.5
3.9
1.1
1.5
3.9
1.1
1.5
3.9
1.1
1.5
3.9
1.1
13
85
5.0
2.2
52.
75
MC
09
L45
32.
25
1.6
2.2
51
.62
.25
1.6
2.2
51.
61
38
04
.82
.30
2.8
0
MC
10
L45
33.
78
2.6
3.7
82
.63
.78
2.6
3.7
82.
61
38
06
.02
.30
3.0
0
MC
11
M45
35.
512
.43.
85.
512
.43
.85
.51
2.4
3.8
5.5
12.
43.
81
40
06
.02
.50
2.8
0
MC
13
S4G
37.
514
.85.
27.
514
.85
.27
.51
4.8
5.2
7.5
14.
85.
21
41
06
.52
.25
2.9
0
MC
13
M4P
39.
318
.16.
49.
318
.16
.49
.31
8.1
6.4
9.3
18.1
6.4
14
20
6.5
2.3
02.
90
MC
16
M4A
31
12
27.
41
12
27
.41
12
27
.41
12
27.
41
44
06
.52
.25
2.8
0
MC
16
M4C
31
32
58.
81
32
58
.81
32
58
.81
32
58.
81
44
06
.52
.25
2.8
0
MC
16
M4F
31
53
010
.11
53
010
.11
3.8
27
9.3
13.8
27
9.3
14
40
6.5
2.2
52.
80
MC
16
L4P
318
.53
612
.518
.53
612
.51
73
31
1.5
17
33
11.5
14
45
6.5
2.1
02.
50
MC
18
M43
32
24
114
.820
.53
813
.82
24
11
4.8
20.5
38
13.8
14
50
6.5
2.2
52.
50
MC
18
L47
32
64
617
.52
442
.516
.12
44
2.5
16.
12
23
914
.81
45
06
.52
.25
2.5
0
MC
20
L43
33
56
223
.43
35
922
.13
35
92
2.1
31
56
20.8
14
55
6.5
2.3
02.
60
MC
22
S413
43
77
28.7
41
7427
.44
17
42
7.4
39
72
26.0
14
60
6.5
2.3
02.
60
MC
22
M43
35
39
635
.45
091
33.4
50
91
33.
44
88
832
.01
46
06
.52
.30
2.5
0
MC
25
M41
36
41
13
42.6
61
10
840
.66
11
08
40.
65
81
03
38.6
14
65
6.5
2.3
02.
60
MC
28
S413
88
15
258
.38
51
47
56.3
85
14
65
6.3
82
14
154
.31
47
06
.52
.30
2.6
0
MC
28
M45
31
10
19
072
.91
02
17
767
.61
02
17
76
7.6
97
16
964
.31
47
06
.52
.30
2.6
0
MC
31
S413
13
22
28
87
12
52
16
82.5
12
52
16
82.
51
20
20
879
.21
47
56
.52
.30
2.6
0
MC
31
M43
31
60
27
410
5.7
15
02
56
99.1
15
02
56
99.
11
45
24
895
.71
47
56
.52
.30
2.6
0
MC
31
L45
31
85
31
712
1.8
17
83
05
117.
11
78
30
51
17.1
17
02
92
111.
91
48
06
.52
.30
2.6
0
MC
31
L46
32
05
35
013
4.9
19
23
28
126.
41
92
328
126
.41
80
30
711
8.5
14
80
6.5
2.3
02.
60
MC
31
L47
32
30
39
015
1.4
21
03
56
138.
22
10
356
138
.22
00
34
013
1.6
14
80
6.5
2.3
02.
60
MC
35
L41
32
85
48
018
6.9
27
04
55
177.
12
70
455
177
.12
60
43
817
0.5
14
85
6.5
2.2
52.
60
MC
35
L43
33
50
59
022
9.6
33
55
65
219.
73
35
565
219
.73
15
53
120
6.6
14
85
6.5
2.2
52.
60
MC
35
L45
34
00
66
026
2.4
38
06
30
249.
23
80
63
02
49.2
35
55
88
232.
81
48
56
.52
.20
2.5
0
No
te: D
erat
ing
fact
ors
of
mo
tor
rati
ngs
fo
r h
igh
er a
mb
ien
t te
mp
erat
ure
s ar
e as
giv
en in
th
e c
atal
ogu
e fo
r C
ran
e &
Ho
ist
Du
ty -
CC
B1/
A
TEF
C 3
Ph
ase
Sq
uir
rel C
age
Ind
uct
ion
Mo
tors
Cra
ne
& H
ois
t D
uty
wit
h In
vert
er (
VV
VF)
Dri
ve F
r. 7
1 t
o 3
55
L0
Am
bie
nt
:
4
5 C
D
uty
:
S3
/ S4
Wit
h D
OL
Star
tin
g
1
50
0 r
pm
( 4
-Po
le)
30
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
15
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
Ins.
Cla
ss
: F
Tem
p. R
ise
: B
Pro
tect
ion
:
IP5
5
Ro
tor
Net
GD
²
Wt.
B3
Co
nst
.kg
m²
kg
0.0
033
7
0.0
061
10
0.0
072
11
0.0
120
14
0.0
160
17
0.0
260
27
0.0
583
5
0.1
275
6
0.1
436
8
0.1
419
3
0.1
771
03
0.1
931
07
0.2
651
32
0.4
601
60
0.5
401
88
0.8
602
70
1.3
23
28
1.6
03
62
2.8
34
75
5.0
06
53
6.3
57
30
8.7
09
02
10.2
10
10
12.2
11
85
13.4
12
62
14.6
13
05
23.3
16
80
32.7
18
55
38.2
20
50
Fram
esi
zeIE
C
71
80
80
90
S
90
L
10
0L
11
2M
13
2S
13
2M
16
0M
16
0M
16
0M
16
0L
18
0M
18
0L
20
0L
22
5S
22
5M
25
0M
28
0S
28
0M
31
5S
31
5M
31
5L
31
5L
31
5L
35
5L
35
5L
35
5L
Perf
orm
an
ce t
ab
le f
or
4-P
ole
mo
tors
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY W
ITH
IN
VER
TER
DR
IVE
11
Vo
ltag
e
: 41
5V
± 1
0%
Freq
uen
cy
: 5
0H
z ±
5%
Co
mb
ined
Var
iati
on
: ±
10%
Typ
e
Ref
.St
arti
ng
Star
tin
gP
ullo
ut
Cu
rren
tTo
rqu
eTo
rqu
e
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
ekg
.m
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
eK
g.m
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
ekg
.m
Rat
edC
urr
ent
Am
ps.
Rat
edTo
rqu
ekg
.m
Rat
edSp
eed
RP
M
to R
ated
to R
ated
to R
ated
B3
kWkW
kWkW
C
urr
ent
Torq
ue
Torq
ue
Co
nst
ruct
ion
R
atio
Rat
ioR
atio
MC
07
16
33
0.3
71
.43
0.5
0.3
71
.43
0.5
0.3
71
.43
0.5
0.3
71
.43
0.5
80
03
.01
.70
1.9
0
MC
08
06
13
0.5
52
0.6
0.5
52
0.6
0.5
52
0.6
0.5
52
0.6
83
03
.51
.90
2.2
0
MC
08
06
33
0.7
52
.70
.90
.75
2.7
0.9
0.7
52
.70
.90
.75
2.7
0.9
86
03
.52
.25
2.5
0
MC
09
L6A
31
.13
.01
.21
.13
1.2
1.1
31
.21
.13
1.2
90
04
.02
.30
2.6
0
MC
09
L65
31
.54
.21
.61
.54
.21
.61
.54
.21
.61
.54
.21
.69
00
4.0
2.3
02
.75
MC
10
L65
32
.26
.52
.32
.26
.52
.32
.26
.52
.32
.26
.52
.39
20
4.5
2.2
52
.75
MC
11
M6
53
3.7
9.1
3.9
3.7
9.1
3.9
3.7
9.1
3.9
3.7
9.1
3.9
92
05
.02
.25
2.7
5
MC
13
S6G
35
.51
3.5
5.8
5.5
13
.55
.85
.51
3.5
5.8
5.5
13
.55
.89
25
5.5
2.3
02
.75
MC
13
M6
T3
7.5
18
.87
.96
.81
77
.27
.51
8.8
7.9
6.8
17
.07
.29
25
5.5
2.3
02
.75
MC
16
M6
33
9.3
21
9.7
81
8.1
8.3
9.3
21
9.7
81
8.0
8.3
93
56
.02
.30
2.6
0
MC
16
L66
31
12
41
1.5
10
.22
2.3
10
.61
12
41
1.5
10
.22
2.3
10
.69
35
6.0
2.3
02
.60
MC
16
L67
31
32
91
3.5
12
27
12
.51
32
91
3.5
12
27
12
.59
35
6.0
2.2
52
.60
MC
18
L61
31
83
71
8.7
16
.73
51
7.3
18
37
18
.71
6.7
35
17
.39
40
6.0
2.3
02
.60
MC
18
L63
32
14
32
1.8
19
39
19
.72
14
32
1.8
19
39
19
.79
40
6.0
2.3
02
.60
MC
20
L63
32
65
02
6.7
24
47
24
.62
44
72
4.6
22
43
22
.69
50
6.0
2.3
02
.50
MC
22
M6
23
34
.56
43
5.0
32
60
32
.53
26
03
2.5
30
57
30
.49
60
6.0
2.3
02
.50
MC
22
M6
43
39
73
39
.63
566
35
.53
56
63
5.5
33
63
33
.59
60
6.0
2.3
02
.50
MC
25
M6
33
46
83
46
.04
27
64
2.4
42
76
42
.44
07
34
0.4
96
56
.02
.30
2.5
0
MC
28
S61
35
29
35
2.2
49
88
49
.24
98
84
9.2
45
81
45
.29
70
6.0
2.3
02
.50
MC
28
M6
33
65
11
76
5.3
61
11
06
1.3
61
11
06
1.3
58
10
55
8.2
97
06
.02
.30
2.5
0
MC
31
S61
39
01
58
89
.48
51
50
84
.58
51
50
84
.58
01
42
79
.59
80
6.0
2.3
02
.50
MC
31
M6
33
10
51
84
10
4.4
10
01
75
99
.41
00
17
59
9.4
95
16
69
4.4
98
06
.02
.30
2.5
0
MC
31
M6
53
12
52
19
12
4.2
12
02
10
11
9.3
12
02
10
11
9.3
11
52
01
11
4.3
98
06
.02
.30
2.5
0
MC
31
L67
31
50
26
31
48
.81
42
24
91
40
.81
42
24
91
40
.81
36
13
81
34
.99
82
6.0
2.3
02
.50
MC
31
L69
31
80
31
61
78
.51
70
30
01
68
.61
70
30
01
68
.61
60
28
21
58
.79
82
6.0
2.3
02
.50
MC
35
L61
32
20
38
32
17
.52
10
36
62
07
.72
10
36
62
07
.72
00
34
91
97
.89
85
6.0
2.2
02
.50
MC
35
L63
32
75
47
92
71
.92
62
45
62
59
.12
62
45
62
59
.12
50
43
52
47
.29
85
6.0
2.2
02
.5
MC
35L
653
325
566
321
.43
10
540
306
.53
10
540
306
.53
00
523
296
.69
856
.02
.20
2.5
0
No
te: D
erat
ing
fact
ors
of
mo
tor
rati
ngs
fo
r h
igh
er a
mb
ien
t te
mp
erat
ure
s ar
e as
giv
en in
th
e ca
talo
gue
for
Cra
ne
& H
ois
t D
uty
- C
CB
1/A
TEF
C 3
Ph
ase
Sq
uir
rel C
age
In
du
ctio
n M
oto
rs C
ran
e &
Ho
ist
Du
ty w
ith
In
vert
er
(VV
VF)
Dri
ve F
r. 7
1 t
o 3
55
L
30
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
15
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
0A
mb
ien
t
:
45
C
Du
ty
:
S3 /
S4
Wit
h D
OL
Star
tin
g
1
00
0 r
pm
( 6
-Po
le)
Ins.
Cla
ss
:
FTe
mp
. Ris
e :
BP
rote
ctio
n
: IP
55
Fram
esi
ze
Net
Wt.
B3
IEC
C
on
st.
Ro
tor
GD
²kg
m²
kg
71
0.0
03
87
80
0.0
06
10
80
0.0
08
41
1
90
L0
.01
61
7
90
L0
.01
61
7
10
0L
0.0
29
27
11
2M
0.0
65
33
13
2S
0.1
30
52
13
2M
0.1
93
71
16
0M
0.2
81
03
16
0L
0.3
41
13
16
0L
0.4
01
23
18
0L
0.6
81
75
18
0L
0.8
21
90
20
0L
1.2
02
54
22
5M
2.1
03
36
22
5M
2.4
23
60
25
0M
3.7
25
28
28
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5.1
15
73
28
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6.1
66
20
31
5S
10
.78
30
31
5M
12
.49
12
31
5M
15
.51
01
0
31
5L
18
.01
17
5
31
5L
21
.51
23
1
35
5L
28
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67
0
35
5L
35
.51
78
0
35
5L
43.
30
20
00
Perf
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or
6-P
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mo
tors
CR
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DU
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CR
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Freq
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: 50
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C
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: ±
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Ins.
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: F
Tem
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ise
: B
Pro
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IP5
5
Fram
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size
Ref
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kWkW
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Torq
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Torq
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kgm
²kg
90
SM
C0
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0.3
71.
43
0.5
0.3
71.
43
0.5
0.3
71
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71.
43
0.5
70
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011
13
90
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C0
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55
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80.
45
1.7
60.
60
.55
2.1
50
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1.7
60
.66
80
3.0
1.8
02
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3
90
LM
C0
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53
0.7
52.
76
1.1
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76
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52
.76
1.1
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52.
39
0.9
68
03
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2.4
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14
10
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MC
10
L81
31.
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41.
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78
1.3
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53
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18
10
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MC
10
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31.
54.
95
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1.5
4.9
52.
11
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31
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80
3.5
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272
2
11
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MC
11
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64
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336
9
16
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MC
16
M83
36
13
8.2
5.5
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7.5
5.5
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7.5
511
6.9
71
05
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2.4
00.
299
10
6
16
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MC
16
M85
37
15.5
9.6
6.5
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6.5
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48
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13.3
8.2
71
05
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11
0
16
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16
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38.
318
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817
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7.4
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77
15.6
9.6
71
05
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2.3
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40
11
9
18
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MC
18
M81
310
.622
.514
.51
021
13.7
10
21
13.
79
.32
012
.87
10
5.5
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02
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21
77
18
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MC
18
L83
312
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.517
.111
.524
.515
.81
1.5
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51
5.8
11
23.4
15.1
71
05
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2.5
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72
18
2
20
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31
728
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21.8
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33
21.
81
53
120
.47
15
5.5
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1.3
22
82
22
5S
MC
22
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20.5
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27.7
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21
8.5
37.5
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72
05
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32
9
22
5M
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M83
324
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73
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45
29.8
72
05
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36
9
25
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46
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63
43.
03
05
940
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25
5.5
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3.7
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72
28
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56.0
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97
65
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37
72
49.4
73
05
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83
61
5
28
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28
M85
35
21
01
69.4
48
9364
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89
36
4.0
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87.5
60.0
73
05
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86
66
5
31
5S
MC
31
S813
62
12
082
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811
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81
13
76.
95
51
07
72.9
73
56
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31
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M83
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51
65
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68
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08
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55
106
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51
45
99.4
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12
31
5M
MC
31
M85
31
00
19
313
2.5
95
18
412
5.9
95
18
41
25.9
90
17
51
19.3
73
56
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015
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01
0
31
5L
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31
L87
31
22
23
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71
16
223
153
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10
211
145
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35
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31
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52
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11
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26
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2.9
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82
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82.9
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22
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221
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L83
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20
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480
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9.3
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54
52
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00
0
No
te: D
erat
ing
fact
ors
of
mo
tor
rati
ngs
fo
r h
igh
er a
mb
ien
t te
mp
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ure
s ar
e as
giv
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th
e c
atal
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e fo
r C
ran
e &
Ho
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Du
ty -
CC
B1/
A
0A
mb
ien
t
:
45
C
Du
ty
:
S3 /
S4
Wit
h D
OL
Star
tin
g
7
50
rp
m (
8-P
ole
)
TEF
C 3
Ph
ase
Sq
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age
Ind
uct
ion
Mo
tors
Cra
ne
& H
ois
t D
uty
wit
h In
vert
er (
VV
VF)
Dri
ve F
r. 9
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to 3
55
L
30
0 S
tart
s/ h
r.
40
% C
DF
60
% C
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15
0 S
tart
s/ h
r.
40
% C
DF
60
% C
DF
Rat
ed
Perf
orm
an
ce t
ab
le f
or
8-P
ole
mo
tors
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY W
ITH
IN
VER
TER
DR
IVE
13
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
14
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
15
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
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RS
16
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
17
CR
AN
E &
HO
IST
DU
TY M
OTO
RS
CR
AN
E &
HO
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DU
TY M
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RS
CR
AN
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HO
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DU
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RS
18
Enclosures: (Material & T-Box Location)
Degree of ProtectionAll motors have IP55 degree of protection as per IS/IEC 60034-5. Higher degree of protection such as IP 56, IP 65 and IP 66 can be offered on request. All flange mounted motors are additionally provided with oil tight shaft protection on driving end side.
Note: For more details, refer to annexure II on page no. 121.
MountingStandard mounting is B3. In case B5 mounting is required, please refer to our .sales office
Additional Mechanical FeaturesThe Slipring's at the drive end are accessible through hinged brushes on the top after opening the T-Box cover. The brush block assembly can hence easily be replaced as a whole unit without dismantling the motor. Terminals box of the motor contains 3 terminals for stator and 3 for rotor and 2 cable entries.
Starting and Speed ControlThe maximum torque (which is approx. the pull-out torque) can be obtained for starting by correct selection of the resistance of the controller. By appropriately switching the resistance as the motor picks up speed, the mean torque during starting can be as high as 2.25 times the rated full load torque.
Frame Size
Enclosure Materials
Terminals Box Location
Standards Options
Available
100 to 160
Cast Iron Top ----
Application Slipring induction motors are used for systems specifying limitations on starting current, for high inertia drives and for frequent starting. The motors are eminently suitable for high mechanical and electrical stresses encountered under heavy duty conditions such as excavating machines, stone crushers, main and auxiliary drives in rolling mills etc. These motors are well suited for smooth starting by using the resistance bank. These motors can also be used for variable speed drives, particularly for short periods and within a small speed range.
InsulationThe motors are provided with class F insulation scheme with temperature rise for stator windings limited to class B limits and rotor winding limited to class F limits.
The values of rated current and voltage required for selecting the starting resistors are listed in the performance table of Slipring motors.
For reduced load, the rotor current reduces and is given by rated current × (reduced load/rated load)
The rotor current while starting is proportional to the motor torque and determines the size of the starting resistance.
Fine speed variation is possible by inserting resistance in the rotor circuit calculated per phase as:
V × (Nr s -N) × Mn R = c ------------------------------ - Rr
3 × I × N × Mr s
Where V , I and R are the open circuit voltage, rated r r r
current and resistance of the rotor, M and M are n
the rated and required torque values, and N sand N are the synchronous and required speed respectively.
Since the cooling is reduced at lower speed, torque and output must be reduced as per the following table, otherwise a larger motor should be selected.
At lower speeds the torque speed characteristic is such that the speed varies inversely with the load. Below 50% rated speed, satisfactory operating characteristics may not be obtained even if the load torque remains constant.
If sufficiently ventilated by using a separate fan etc. the motor can provide the full load torque at reduced speed.
Bharat Bijlee has developed a special series of Cane un-loader motors for unloading cane at sugar mills.These motors are designed after thorough study of the Cane un-loader application in sugar mills.
ApplicationThese motors are primarily crane duty motors suitable for very high no. of switching per hour. These motors can be used for lifting applications where high switching frequencies lead to overheating and burnouts. These motors are developed with specially designed squirrel cage rotor and they readily replace Slipring induction motors.
Salient Features
Very high no. of switching: These motors are suitable for very high no. of switching i.e. 900 starts/stop per hour which includes inching and plugging.
Special winding & impregnation: The stators are wound with dual coated (DC) winding wires as per IS13730 part 13 and winding is impregnated with VPI process. This improves the thermal withstand capacity of the motor.
Robust construction: Shaft material is given special heat treatment to withstand high intermittent load. These motors have special squirrel cage die cast rotors which ensure minimum maintenance and trouble free operation.
Forced cooling: This ensures continuous cooling of the motor.
Built in thermal protection: Built in thermal protection is provided by embedding thermostats in the winding. This ensures protection of the motor against failure due to excessive heating caused by severe starting duty, single phasing, overloading, low voltage etc.
Compact design: Compact in size as the auxiliary fan motor used for forced Cooling is an integral part of the main motor.
AmbientMotors are designed for ambient temperature of 45°C.
Altitude Motor are designed for altitude up to 1000m above mean sea level.
InsulationThe motors are provided with class F insulation scheme with temperature limited to class B limits.
Mechanical FeaturesConstruction:TEFC Horizontal foot mounting (B3) as per IS 1231.TEFC Horizontal flange mounting (B5) as per IS 2223.
Terminals Box LocationAs standard practice terminal box will be located on RHS when viewed from DE side. However motors can be offered with Terminal Box location on LHS when viewed from DE side or top on request.
Brake motors are offered for various application requiring almost instantaneous stopping if driven with load. These motors are offered in frame size 71 to 132. Their operation is of “fail safe” type, i.e., the brake applied when, power to the motor is switched off, or, if power failure occurs.
Enclosures: (Material & T-Box location)
ConstructionA Brake motor is an integral combination of an A.C induction motor and a disc type, fail safe, electromagnetic Brake unit. It consists of following:
I) A.C. induction motor.II) Encapsulated brake coil housed in the non driving side end-cover.III) Brake liner attached to the armature disc at its interface with the cooling fan.IV) Cooling fan.V) The rectifier unit is provided inside the terminal box. It converts A.C. supply into D.C. supply for the brake coil.
OperationUnder no power condition brake springs keep the brake liner pressed against the cooling fan. This prevents rotor shaft rotation, because, the fan is keyed to it. When power is switched on, the brake coil gets energized through the Rectifier unit. It instantly attracts the armature disc by overcoming the spring force. This action results in releasing of the fan allowing the rotor to rotate freely.
When the power fails or when it is switched off, the brake coil gets de-energized. This results in the springs pressing the brake liner against cooling fan, i.e. returning armature disc to its original position. This causes almost instantaneous braking of rotor. Fail safe condition is thus ensured.
For applications, where total load stopping time is not very critical, A.C. side interruption can be used.
However for application where faster braking is required, D.C. side interruption should be used. An additional contactor interlocked with main contactor should be used.
Special Featuresa) Being simple and rugged in construction these motors need very little maintenance.
b) No separate DC supply is necessary for brake coil energisation, because a rectifier unit is provided. The rectifier is open type and fixed between the two terminals inside the terminals box. Being open type, it ensures good heat dissipation and is very easy to replace. Varistor is provided across the DC terminals to protect the brake coil and rectifier against line and switching surges.
c) Special brake liner is used, which ensures that, the braking torque value remains quite stable throughout the use. Compensation for liner wear is done by advancing the position of the fan by tightening the castle nut at the non-drive end. The design of brake motor facilitates a very easy replacement of armature disc and brake liner assembly.
d) Since the fan serves as a braking surface (unlike some other designs), it also serves to cool the brake coil and the motor. These brake motors being fan-cooled are available in smaller frame size than other Brake motors which are surface cooled. Therefore, these motor are more compact and economical for a given application.
e) For Crane and Hoist duty application Brake motors are offered with special rotors to suit their respective duties. These rotors are specially suited for S3 and S4 duty normally encountered in Crane and Hoist application.
f) Mechanical manual release of the brake as an optional feature is available from 90 to 132 frames. In case of power failure, the brake can be released manually with a lever.
g) The working of the rectifier unit has been successfully type tested for one million operations.
Enquiry DetailsWhen placing an enquiry kindly furnish the following information.1. Application details2. Output and speed3. Duty cycle with number of starts/stops per hour 4. Ambient temperature and special environmental factors likely to affect the motor, if any5. Method of mounting6. Load GD² referred to motor shaft *7. Braking torque required *8. Maximum permissible stopping time9. Any other special features required
* These are inter-related parameters and related by following formula: GD² × NTotal Stopping time T = -------------- + ts app
375 × T
Where T = Braking torque in kgm
2 2 2GD = load GD + rotor GDN = Speed of rotation in r.p.m.t = brake application timeapp
ApplicationsBrake Motors are used for numerous applications. A few of them are listed below:• Textile Machinery• Machine Tools• Printing Machine• Crane and Hoists• Material Handling Equipments• Leather Processing Machines• Geared Motors• Cable Reeling Drums• Rolling Mills
1. Other Braking torque values up to 40% higher can be given for special applications.2. Other output can be offered on request where feasible. *Brake release time: The time interval between the instant the supply to the brake coil is switched on, to the instant the brake is released. **Brake application time: The time interval between the instant the supply to the brake coil is interrupted to the instant the brake is applied. The value depends on whether the circuit is interrupted on AC side or DC side.
For performance details of motor parts, please refer Industrial Motor section of this catalogue.
THE MOTOR MUST NEVER BE SWITCHED ON UNLESS THE BRAKE IS ENERGISED AND BRAKE SHOULD NEVER BE DE-ENERGISED WHEN THE MOTOR IS ON, THE INTERLOCKING OF TWO CONTACTS IS ABSOLUTELY NECESSARY.
Enclosure IP 21 - IP 23(type G...)Self-ventilated with integral fan cooling (DP)Cooling air is blown through the motor by a fan mounted on the shaft.
Enclosure IP 21 - IP 23(type G...I)Separate ventilation with radial fitted fan unit (FV)Cooling air is blown through the motor by a separately excited fan motor. The inlet side may be equipped with an air filter.
Enclosure IP 21 - IP 23(type G..)Single pipe ventilated (FV)Cooling air is blown across the motor through the pipe connection with a separate customer provided external blower fan and discharges on the other side to open space.
Enclosure IP 44 - IP 55(type G..ZE)Totally-enclosed fan-cooled (TEFC)Cooling air is blown over the totally enclosed motor surface by a fan mounted an the shaft.
Enclosure IP 44 - IP 55(type G..Z)Totally-enclosed non ventilated (TENV)Cooling without using a fan, only by nature ventilation and radiation on the totally enclosed motor surface.
Enclosure IP 44 - IP 55(type G..ZO)External surface cooling (TEFV)Cooling air is blown over the totally enclosed motor surface by an separately excited fan motor.
Enclosure IP 44 - IP 55(type G..Z)Double pipe ventilated (TEPV)Cooling air is blown across the motor through a pipe connecting by means of a separate customer provided external blower fan and discharges on the other side’s pipe connecting.
IC 01
IC 06
IC 17
IC 410
IC 411
IC 416
IC 37
Designation system concerning methods of cooling refers to standard IEC 60034-6.Explanation of the product code
International Cooling
Circuit arrangement
Primary coolant
Method of movement of primary
coolant
4 (A) 11 2 3
Position 1 Position 4
0 :Free circulation (open circuit) A:
4 : Frame surface cooled W:Position 2 Position 5
A: For air (omitted for simplified designation)
0
Position 3 1
0 : Free convection 6
1 : Self-circulation 8
6 :Machine-mounted
independent component
(IC)
Secondary coolant
For air (omitted for simplified designation)
Free convection
Machine-mounted independent component
Relative displacement
(A)4
For water
Self-circulation
Method of movement of
secondary coolant
65
Methods of Cooling
31
ANNEXURE - II
Degree of protection for rotating machines are indicated according to IS/IEC 60034-5 using the characteristic letters ‘IP’ followed by two characteristic numerals for the degree of protection.
The first numeral indicates protection against contact and ingress of foreign bodies.
The second numeral indicates protection against ingress of water.
First characteristic numeralIP2X Protected against solid objects greater than 12mm
IP5X Dust protected motors, Ingress of dust is not fully protected ,but dust can not enter in an amountsufficient to interface with satisfactory operations of the motor.
Second characteristic numeral
IPX3 Protected against spraying water, sprayed up to angle of from vertical shall have no harmfuleffect.
IPX5 Protected against water, jets by a nozzle from any direction shall have no harmful effect.
IPX6 Protected against heavy seas, powerful jets from all direction shall have no harmful effect.
No protection
Protected againstsolid objectsgreater that 50mm(e.g. hand)
Protected againstsolid objectsgreater that 12mm(e.g. fingers)
Protected againstsolid objectsgreater that 2.5mm(e.g. tools, wires)
Protected againstsolid objectsgreater that 1mm(e.g. wire or strips)
Ingress of dust isnot totallyprotected, but doesnot enter insufficient quantitiesto harm equipment
No ingress of dust
No protection
Dripping watershall have noharmful effect.
Protected againstdripping waterwhen enclosure is
0titled 15
Protected againstspraying water
0up to 60
Water splashedfrom any directionshall have noharmful effect
Water hosedagainst theenclosure shallhave no harmfuleffect (water jets)
Water frompowerful jets ofheavy seas shallhave no harmfuleffects
Degree of Protection
Degree of protection Schematic
0
1
2
3
4
5
6
0
1
2
3
4
5
6
60⁰
1�� Numeric 2ⁿ� Numeric
32
Unless stated otherwise, tolerances on declared values are applicable as given in the table below:
Schedule of tolerances on values of quan��es
Quan�ty Tolerance
Efficiency ŋ-Machines up to and including 150 kW (or kVA)-Machines above 150 kW (or kVA)
-15 % of (1 - ŋ)
-10 % of (1 - ŋ)
Power-factor, cosΦ, for induc�on machines -1/6 (1 -cosΦ)Minimum absolute value 0.02 Maximum absolute value 0.07
Slip of induc�on motors (at full load and at working temperature)PN < 1 kWPN 1 kW
± 30 % of the slip± 20 % of the slip
Locked rotor current of cage induc�on motors with any specified star�ng apparatus
+20 % of the current
Locked rotor torque of cage induc�on motors +25 -15 % of the torque.(+25 % may be exceeded by agreement)
Breakdown torque of induc�on motors -10% of the torque except that a�er allowing for this tolerance the torque shall be not less than 1.6 or 1.5 �mes the rated torque
Note: When tolerance is stated in only direc�on, the value is not limited in the other direc�on.
Tolerances (Reference IS/IEC 60034-1)
ANNEXURE - III
33
Pro
tec�
ve E
ncl
osu
reIP
22
IP4
4IP
22
IP4
4IP
22
IP4
4IP
22
IP4
4IP
22
IP4
4IP
22
IP4
4
Ra�
ng
kV(
or
kVA
)R
ated
Sp
eed
(rp
m)
96
0 a
nd
bel
ow
Ab
ove
Up
to
Sou
nd
Po
wer
Lev
el d
B(A
)
1.1
-7
6-
79
-8
0-
83
-8
4-
88
1.1
2.2
-7
9-
80
-8
3-
87
-8
9-
91
2.2
5.5
-8
2-
84
-8
7-
92
-9
3-
95
5.5
11
82
85
85
88
88
91
91
96
94
97
97
10
0
11
22
86
89
89
93
92
96
94
98
97
10
11
00
10
3
22
37
89
91
92
95
94
97
96
10
09
91
03
10
21
05
37
55
90
92
94
97
97
99
99
10
31
01
10
51
04
10
7
55
11
09
49
69
71
01
10
01
04
10
21
05
10
41
07
10
61
09
11
02
20
98
10
01
00
10
41
03
10
61
05
10
81
07
11
01
08
11
2
22
06
30
10
01
02
10
41
06
10
61
09
10
71
11
10
81
12
11
01
14
66
01
10
01
02
10
41
06
10
71
07
11
11
08
11
11
08
11
21
10
11
4
11
00
25
00
10
51
07
10
91
10
10
91
13
10
91
13
10
91
13
11
01
14
25
00
63
00
10
61
08
11
01
12
11
11
15
11
11
15
11
11
15
11
11
15
63
00
16
00
01
08
11
01
11
11
31
13
11
61
13
11
61
13
11
61
13
11
6
No
te 1
: IP
22
co
rres
po
nd
s ge
ner
ally
to
dri
p-p
roo
f, ve
n�
late
d a
nd
sim
ilar
encl
osu
res.
IP
44
co
rres
po
nd
s ge
ner
ally
to
to
tally
en
clo
sed
fan
-co
ole
d, c
lose
d a
ir c
ircu
it a
ir-c
oo
led
, an
d s
imila
r en
clo
sure
s (S
ee I
S: 4
69
1-1
98
5*)
.
No
te 2
: No
po
si�
ve t
ole
ran
ce is
allo
wed
on
th
e ab
ove
so
un
d p
ow
er le
vels
.
IS: 1
20
65
- 1
98
7
Lim
i�n
g M
ean
So
un
d P
ow
er L
evel
Lw
in d
B(A
) fo
r A
irb
orn
e N
ois
e Em
i�ed
by
Ro
ta�
ng
Elec
tric
al M
ach
ines
96
1 t
o 1
32
01
32
1 t
o 1
90
01
90
1 t
o 2
36
02
36
1 t
o 3
15
03
15
1 t
o 3
75
0
-
AN
NE
XU
RE
-IV
34
Introduc�onThe purpose of this write-up is to offer some short, easy to follow recommenda�ons to our customers, users and dealers for the proper care of electric motors in storage.
For prac�cal purposes, such equipment is considered to be in storage not only when it is in the store room but also when:
It has been delivered to the jobsite and is awai�ng installa�on;or, It has been installed but regular opera�on is delayed / pending comple�on of plant construc�on;or, there are 3 months or more, idle periods between opera�ng cycles; or, the plant or department is shut down.
The recommenda�ons given here apply to condi�ons commonly found in indoor storage. Personnel responsible for care of the equipment should use good discre�on in adap�ng these recommenda�ons to the par�cular situa�on. Common sense and sound safety rules need to be followed.
WARNINGDangerous voltages are present in the motor components which can cause serious injury, electrocu�on and equipment damage. To avoid serious injury and/or equipment damage before any adjustments, servicing, wiring, parts replacement or any other act requiring physical contact with the electrical or mechanical working components of this equipment is performed, all equipment must be de-energized, disconnected and isolated to prevent accidental contact with live or rota�ng parts.
The success and safe opera�on of motors is dependent upon proper handling, installa�on, opera�on and maintenance, as well as upon proper design and manufacture. Failure to follow certain fundamental installa�on and main- tenance requirements may lead to personal injury and the failure and loss of the motor as well as damage to other property.
Only qualified personnel should be involved in the inspec�on, maintenance and repair procedure and all plant safety procedures must be observed.
A qualified person is one who is familiar with the installa�on, construc�on and opera�on of the equipment, and the hazards involved. In addi�on, he has the following qualifica�ons:
- Is trained and authorized to energize, de-energize, clear, ground, and tag circuits and equipment in accordance with established safety prac�ces.
- Is trained in the proper care and use of protec�ve equipment such as rubber gloves, hard hat, safety glasses or face shields, flash clothing etc. in accordance with established safety prac�ces.
- Is trained in rendering first aid.
Motor should be installed and grounded as per local and na�onal codes.
SAFETY PROCEDURE
Storage and Handling Instruc�ons for Motors
ANNEXURE -V
Indoor storageWholly controlled atmosphere or par�ally controlled atmosphere• Storage room must be clean, dust free and dry• Maintain temperature in the range 20 deg to 50 deg in the storage room• Maintain uniform temperature throughout the room• Rela�ve humidity to be 50% or less• Ensure absence of harmful fumes • Vibra�on free area• Space heater must be energized if temperature falls below 10 deg.C or humidity is more than 50% to prevent harmful effects of moisture condensa�on. • Ensure that no water drips on motor and no water accumulates under the motor.• Ensure that all plugs originally provided are in place. (e.g. cable entry hole plugs, drain plugs and plug in fan cowl for greasing. If plugs are missing, all the openings to be covered with an adhesive plas�c cloth.• The enclosing structure should be designed to protect the motor from flying debris or other damage from high winds.
Storage Instruc�ons For Motors
35
ANNEXURE - V
Cover the motor completely in a strong, transparent plas�c bag to exclude dirt, dust, moisture, and other foreign materials. Before sealing this bag, small bags of silica-gel desiccant should be put inside the bag, around the motor.
Rodents and other animals like to house inside motors in search of warm surroundings or food. Some of them a�ack the insula�ng materials. Their access to the motor should be restricted.
Outdoor storageDry climate (Condi�ons usually found) - Dust, sand, heat from the sun, and occasional rain or snow.
Humid climate (Condi�ons usually found) - Dust, rain and snow, organic (fungus) growth
Salty and industrial atmospheres (Condi�ons usually found) - Moisture impregnated with salts or other acidic / alkaline chemicals, salty dust, sand, rain or snow, fungus growth, fumes, coal and chemical dust soot.All precau�ons indicated in indoor storage to be taken.
In addi�on, a�er the unit is covered as explained in these instruc�ons, a shed should be erected to protect it from direct rain, snow, and excessive direct sun heat. At a bare minimum, a heavy water-proofed cover should be slipped over it.
Bearings:Special precau�ons need to be taken when the machine is idle for a period of 3 moths or more to avoid corrosion of the bearings and loss of grease. It is advisable to rotate the sha� periodically (once in a week @ 30 rpm for minimum 15 sec.) as the grease tends to se�le at the bo�om of the housings. Before a machine is started a�er a long idle period, the bearing covers should be removed and grease in the housing pressed with thumbs between the races of the bearing. If any deteriora�on of grease is apparent, the old grease should be removed and new grease pressed in the bearing housings.
If the machine is idle for four months or more, change the grease completely.
Sha� extensions, machines surfaces or flanges:The machined parts have a protec�ve coat of an�-rust preserva�ve which should not be taken off during normal storage periods. In case of long storage, periodic examina�on should be carried out and fresh preserva�on should be applied, if required, a�er any rust or moisture has been removed. Preserva�on can be easily taken off by using paraffin or other petroleum solvents.
Complete motor:When storage may last over one year, repaint all surfaces previously painted, before pu�ng motor into service.
Handling instruc�ons for motors• For li�ing the motor, only the li�ing hook provided with motor, are to be used. • Use all li�ing hooks that are provided simultaneously. (If motor is provided with two hooks, use both hooks and not one) • Do not use any other part of the motor for li�ing. • Do not use sha� projec�ons for dragging the motor. • Do not roll or drag the motor on the floor. • Motors must not be kept in ver�cal posi�on with external fan cowls as base. • Jerks and jolts must be avoided to increase the bearing life. • In ver�cal li�ing, uncontrolled rota�on of the motor must be prevented.• Do not li� other equipments with motor li�ing points only.
36
1. DAILY MAINTENANCE 1.1 Examine visually earth connec�ons. Check motor leads and cable connec�ons are fully �ght and not loose. 1.2 Check motor windings for overhea�ng (the permissible maximum temperature is above that which can be comfortably felt by hand). 1.3 Examine control equipments. 1.4 Check body and bearing temperature 1.5 Check voltage and current in all three phases. Check voltage varia�on and unbalance. 1.6 Check vibra�ons at bearings. 1.7 Check if motor rota�on is free and measure speed. 1.8 Check for any abnormal noise.
Note: In order to avoid opening up motors, a good indica�on is to observe the shell temperature undernormal working condi�ons. Any increase not accounted for, for example by seasonal increase inambient temperature, should be suspected.
2. WEEKLY MAINTENANCE 2.1 Check belt tension. In cases where this is excessive, it should immediately be reduced. Check motor pulley seat loca�on. Pulley has to rest on sha� shoulder. 2.2 Check coupling condi�on. 2.3 Blow out windings of protected type motors situated in dusty loca�ons. Check for any accumula�on of dirt, sand or fine dust. 2.4 Examine star�ng equipment for burnt contacts where motor is started and stopped frequently. 2.5 For outdoor motors, check if canopy is at proper place.
3. MONTHLY MAINTENANCE 3.1 Overhaul Controllers. 3.2 Inspect and clean oil circuit breakers. 3.3 Wipe brush holders and check bedding of brushes of slip-ring motors.
4. HALF YEARLY MAINTENANCE 4.1 Clean windings of motors subjected to corrosive or other elements; also bake and varnish, if necessary. 4.2 In the case of slip-ring motors, check sliprings for grooving or unusual wear. 4.3 Check grease in ball and roller bearings and make it up where necessary taking care to avoid overfilling.
5. ANNUAL MAINTENANCE 5.1 Check all high speed bearings and renew, if necessary. 5.2 Blow out all motor winding thoroughly with clean dry air. Make sure that the pressure is not so high as to damage the insula�on. 5.3 Clean and varnish dirty and oily windings. 5.4 Overhaul motors which have been subjected to severe opera�ng condi�ons. 5.5 Renew switch and fuse contacts, if damaged. Check oil. 5.6 There can be cement dust / saw dust / rock dust / coal dust / grain dust on motor body. Blow out compressed air over motor body to clean this accumulated dust at the �me of monthly maintenance. See to it that all ven�la�on paths are absolutely free. 5.7 Paint the motor if required. 5.8 Check insula�on resistance to earth and between phases of motor winding, control gear and wiring. 5.9 Check resistance of earth connec�ons. 5.10 Check air gaps. 5.11 Test the motor overload relays and breakers.
6. RECORDS 6.1 Maintain a register giving one or more pages for each motor and record therein all important inspec�on and maintenance works carried out from �me to �me. These records should show past performance, normal insula�on resistance level, air gap measurements, nature of repairs and �me between previous repairs and other important informa�on which would be of help for good performance and maintenance. Sample format is a�ached.
Recommended Maintenance Schedule
ANNEXURE - VI
37
Trouble Shoo�ng Chart
TROUBLE CAUSE WHAT TO DO
Motor fails to start Blown fuses Replace fuses with proper type and ra�ng.
Overload trips Check and reset overload in starter
Improper power supply Check to see that power supply agrees with Motor name plate and load factor
Improper line connec�on Check connec�ons with diagram suppliedwith motor
Open circuit in winding or control switch
Mechanical failure Check to see if motor and drive turn freely. Check bearings and lubrica�on
Short circuited stator Indicated by blown fuses. Motor must be rewound
Poor stator coil connec�on
Remove end shields, locate with test lamps
Rotor defec�ve Look for broken bar sand/or end rings
Indicated by humming sound when switchis closed. Check for loose wiring connec�ons. Also, ensure that all control contacts are closing
Motors may be over loaded
Reduce Load
Motor stalls One phase may be open Check lines for open phase
Wrong applica�on Change type or size. Consult manufacturer
Ensure the name plate voltage ismaintained. Check connec�on
Over Load Reduce Load
Low Voltage
Open circuit Fuses blown, check overload relay, stator and push bu�ons
Motor runs and then dies down
Power failure Check for loose connec�ons to line, fuses and control
Motor does not come up to speed
Use higher voltage or transformer terminals or reduce load. Check connec�ons. Check conductors for proper size
Voltage too low at motor terminals because of line drop
Star�ng load too high Check load motor is supposed to carry at start
Broken rotor bars or loose rotor
Look for cracks near the rings. A new rotor may be required, as repairs are usually temporary
Locate fault with tes�ng device and repairOpen primary circuit
ANNEXURE - VI
38
Motor takes too long to accelerate and/or draws high amp
Excessive load Reduce load
Low voltage during start Check for high resistance. Adequate wire size
Defec�ve squirrel cage rotor
Replace with new rotor
Applied voltage too low Increase power tap
Wrong rota�on Wrong sequence of phases
Reverse connec�ons at motor or at switchboard
Motor overheatswhile running under load
Overload Reduce Load
Motor vibrates
Frame vents may be clogged with dirt and prevent proper ven�la�on of motor
Open vent holes and check for a con�nuous stream of air from the motor
Motor may have one phase open
Check to make sure that all leads are well connected
Grounded coil Locate and repair
Unbalanced terminalvoltage
Check for faulty leads, connec�ons and transformers
Motor misaligned Realign
Weak support Strengthen base
Coupling out of balance Balance coupling
Driven equipmentunbalanced
Rebalance driven equipment
Defec�ve bearings Replace bearings
Bearings not in line Line up properly
Balancing weights shi�ed Rebalance motor.
Contradic�on between balancing of rotor and coupling (half key - full key)
Rebalance coupling or motor
Polyphase motor running single phase
Check for open circuit
Excessive end play Adjust bearing or add shim
Scraping noise Fan rubbing fan cover Remove interference
Fan striking insula�on Clear fan
Loose on bed plate Tighten holding bolts
ANNEXURE - VI
39
Noisy opera�on Rotor unbalance Rebalance
Hot bearings general Bent or sprung sha� Straighten sha�
Excessive belt pull Decrease belt tension.
Pulleys too far away Move pulley closer to motor bearing
Pulley diameter too small Use larger pulleys
Misalignment Correct by realignment of drive
Hot bearings ball Insufficient grease Maintain proper quality of grease in bearing
Remove old grease, wash bearings thoroughly in kerosene and replace with new grease
Overload bearing Check alignment, side and end thrust.
Broken ball or rough races Replace bearing, first clean housing thoroughly
Excess lubricant Reduce quan�ty of grease, bearing should not be more than 1/2 filled
COIMBATORE112 A, Chenny's Chamber, 1st Floor, Dr. Nanjappa Road,Coimbatore 641 018 India T: + 91 422 326 8881Email: [email protected]
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Continuous process of product development/updation entitles us to change the specification in this booklet without prior notice. For latest information, please contact our Sales Office OC
