Static Swtich ~ Operating Instructions

8/13/2019 Static Swtich ~ Operating Instructions

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Technical Documentation:

St a t i c Co n t a c t o r f o r r a p i d sw i t

Technica

Stat ic Con

Rapid sw it

i

324 Konena Agrahara, VimanapuraBangalore 560 017.INDIA

Tel.: +91 80 2522 3736Fax: +91 80 425 8146

c h i n g o f Ca p a c i t o r s i n L o w Vo l t a g e

l Documentat ion

ac tor BEL-T S H 2

ching of capac itors

n LV -gr id

Rev.:1.01

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http://localhost/var/www/apps/conversion/tmp/scratch_5/[email protected]

http://www.processtechnique.com/









Rev.:1.01

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Rev.:1.01

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1. Impor tant Inf or mation

This documentation points to specia

contactor BEL-TS as well.

Any application of BEL-TS must co

specif ied in this documentation.

Please don’t f or get the ear th-li

2. Application

Static contactors BEL-TS are use

comparison with contactors the stati

inrush current, smooth disconnecti

characteristics will be guaranteed by

and Beluk recommendations.

Static contactors BEL-TS are used

requested without any disadvantageo

These demands could appear at f ollo

- W indmill Plants

- Lifts and Cranes

- Primary pulsed Welding Plants


lists enabling them to select and connect t

ply with national rules any time, even th

nk!

d f or switching capacitors in 3-phase-sy

contactor calls special attention to switch i

g procedure and high switching f requenc

f iring unit, basic characteristic of thyristors a

hen rapid, high f requently, switching of cap

us reactions.

ing items, especially:

Rev.:1.01

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he static

ugh not

tems. In

n without

y. These

d diodes

citors is





3. Components of Static C

Static contactor BEL-TS basicallyThyristors, diodes, heatsink, f iring

Thyristors are semi-conducting un

f rom locked into semi-conducting

in “one way” direction, f rom an

current decreases to zero. To

antiparallel mode are requested,

on-state voltage and f orward slop

cathode at semi-conductors, f inall

The f iring unit becomes signif ican

semi-conducting condition. Firing

– 30 V. To avoid any inrush curre

thyristor(s) in case of voltage bet

capacitors this means, that any c

to avoid any transients during s

resistors!


ontactor s

contents components as f ollowing:unit

its, which may be controlled by f iring impuls

condition. Semi-conduction means current

de to cathode. Thyristors will lock again,

con trol alternating current, thyristor and

s provided in BEL-TS. As with all active co

resistance def ine power losses between a

, which results in heat to be diver ted by heat

; it generates f iring impulses to control thyri

impulses will be star ted by an external DC-

nts the impulses will be transmitted to the g

een anode and cathode becomes zero. In

harge voltage must be synchronous to grid’

itching procedure. Capacitor can be disch

Rev.:1.01

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at gate

ay f low

if f lowing

diode in

ponents

ode and

sink.

tors into

oltage 8

te of the

switching

voltage

rged by





4. Switching mode

Static controller BEL-TS may be us

Please take care that in unchoked

current transients, which are cause b

banks please take care that the hig

static contactor .

L1

L2

L3


d in choked capacitor banks and unchoke

capacitor banks maybe thyristors are dest

y f ast changings of the voltage. At choked c

her currents are not exceeding the max. c

Rev.:1.01

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as well.

royed by

apacitors

urrent of





5. Installation of the static

Thyristor switches of type BEL-TS hais caused. typically this is achieved b

When installing the switc hes it is

generated, which have to be han

continuous operation temperatures u

this the static contactor has to be mo

are damaged because of the high te

Additionally it is prohibited, that co

insulation can melt and shor t circuits

Generally static contactors should be

By assembling them ver tical it must b

the heat sink.

Additionally the switchboard must b

cabinet must not exceed the limit f or

the thyristor manuf acturer .

For dimensioning the switchboard co

calculated with the f ollowing f ormula:

Ploss (n I A

n = number of switched phases

I = phase current

Example:

25kVAr at 400V, 2 switched phases:50kVAr at 400V, 2 switched phases:50kVAr at 690V, 3 switched phases:75kVAr at 400V, 2 switched phases:100kVAr at 400V, 2 switched phases:100kVar at 690V, 3 switched phases:


contactor BEL-TS

ve to be placed in the way, that no danger f mounting them in a switchboard.

to be respected, that in the thyristor lo

ed out to the environment by the heat

p to 100°C are possible at the heat sink. B

unted in the way, that no other components

mperature. Distances have to be chosen ac

nection leads have contact with the heat

ith extreme high currents can be caused.

mounted in the way, that they don't heat ea

e ensured, that there can be a ver tical air f lo

e cooled suff icient. The air temperature in

the ambient temperature given by the data

oling the power losses of the static contacto

)W

Ploss = 2 x 36 x 2 W = 144WPloss = 2 x 72 x 2W = 288WPloss = 3 x 42 x 2W = 252WPloss = 2 x 108 x 2W = 432WPloss = 2 x 144 x 2W = 576WPloss = 3 x 83 x 2W = 498W

Rev.:1.01

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r people

sses are

sink. In

cause of

or cables

cordingly.

sink. The

h other .

through

side the

sheet of

r can be





When dimensioning the cabinet cooli

or capacitors, have to be included.

It is advantageous, when the static c

can directly exhaust of the cabinet.

5.1 Examples f or installations

The air f low in the graphics is display

cold air f low with max. 45°C

hot air f low with more than 45°

Example f or corr ect installation:

The bottom side of the cabinet should


ng also the losses of other components, e.g

ntactors are mounted in the way, that the h

of static contactor s

d by arrows.

C (temperatures over 100°C are possible!)

For a correct installation please note,

supply air f or the static contactors

exceed 45°C! Probably discharged

other components has to b e d ef lecte

def lectors.

The top side of the cabinet should not

so that the hot air can stream o

switchboard unhindered.

also have big holes f or the cool air supply.

Rev.:1.01

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. chokes

ated air

that the

does not

air f rom

by heat

e closed,

t of the





Examples f or wr ong installation:

a)

b)

Attention: installatio

The static contactors

generated. Because o

Despite of the corre

suff iciently. This caus

temperature a shor t-

provoked.


Attention: installation err or !

The static contactors are placed in the

the cooling air of the bottom switches

switches placed above. This cause

overload and dependent on the

temperature a shor t- or middle-term

of the thyristors can be provoked.

err or !

are placed in the way, that no ver tical a

f this the cooling capacity of the heat sink is

t ambient temperature the thyristors are

es thermal overload and dependent on th

or middle-term demolition of the thyristors

Rev.:1.01

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way, that

heats the

thermal

ambient

emolition

ir f low is

reduced.

't cooled

ambient

can be





c)


The top side of theaccumulates in the

switchboard.

This causes thermal o

shor t- or m iddle-ter

components, e.g. cap

d)


The static contactors

area of the switchbo

cabinet.

This causes thermal o

shor t- or m iddle-ter

components can be pr

6. Electr ical connection of

Thyristor switches can't separate ele

f or the separation f rom the power sys

regarding the electrical regulations.

In general capacitor switching thy

conditions. Caused by the charge of

the double peak mains voltage. Esp

high currents can occur caused by v

are supplied by the d

These curr ents can damage the th


err or !

switchboard is completely closed. The ctop area of the cabinet and heats the

verload and dependent on the ambient tem

demolition of the thyristors and al

citors, can be provoked.

err or !

acting as heat generators are placed in th

rd. Hot discharged air heats all compone

erload and dependent on the ambient temp

demolition of the thyristors and al

ovoked.

static contactor s

trical circuits. Because of this suitable arran

tem have to be made. The lines have to be

ristors are exposed to very hard envir

the capacitors the voltage at the thyristors c

cially f or the usage with non-choked capac

ltage transients. Fur thermore shor t circuits i

ischarging currents of the c

r istor s!

Rev.:1.01

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oling air complete

erature a

o other

e bottom

ts in the

rature a

o other

gements

rotected

nmental

n reach

itors very

n the grid

pacitors.





Thus it is recommended to protect t

ref erring values f or the f uses h

semiconductor f uses don't protect th

lines (gL) and f or the thyristors (gR)possible.

7. Maintenance of static c

Generally thyristor switches are mai

be respected:

- Thyristor switches , equippe

f unc tion every 2 years. If a f an

Using another f an with less ai

thyristors.

- Generally the heat sinks have

can be reduced by pollution.

- Pollution between the conne

because of this leakage distan


e static contactors in critical cases with f u

ve to be reque sted. Please respect t

lines. Because of this a combination of f us

as to be chosen. The usage of f uses type g

ntactor s

tenance-f ree. But never theless some points

with f an, have to be checked f or the c

is def ective, it has to be replaced by the ori

f low can cause overheating and this can d

o be cleaned regularly, because the cooling

tions of the thyristors have also to be r

es are reduced. This can cause a voltage f l

Rev.:1.01

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es. The

hat pure

s f or the

L is also

have to

rrect f an

inal par t.

stroy the

capacity

emoved,

shover .





8. Technical Data

Power section max. mainsvoltage

Nominal current

Max. continuous current(IRMS AC) Thyristor/Thyrist(at max. 45°C ambienttemperature)

I2t; T =125°C; 8,3 ... 10 mvj

Discharging of capacitors

Recovery time

Fir ing Unit Auxiliary voltage

Consumption

Voltage level of trigger sig

Consumption trigger sign

Temperature range

DC – supply for external u

Common data Weight / kg:

Dimensions H x W x D /

Cooling:

Protection degreet

Humidity

max. altitude

Ambient tem per ature


BEL-TS

25H2

BEL-TS

50H2

BEL-TS

75H2

525V, 50/60 Hz

37 A 72,5 A 110 A

or 45 A 90 A 145 A

sec 3600 A2s 15000 A

2s 15000 A

2s

Discharging resistors

20ms

230/400V +10% -20% 50/60 Hz

9 VA

nal 8 – 30 V DC

l 2 mA bei 12 V DC

-10°C - +60°C (only trigger unit!)

se 12 V DC, 50 mA

5,0 5,0 8,0

m 170x170x230 170x170x230 240x275x181

AN(natural)

AN(natural)

AF(forced)

IP00

10 – 95%, without moisture condensa

1000m above sea level

-10 °C - +45 °C

Rev.:1.01

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BEL-TS

100H2

145 A

193 A

125000 A2s

8,0 kg

40x275x181

AF(forced)

tion




L 1

L 2

L 3

L a s t

l o a d

P E

A u x i l i a r y v o l t a g e

2 3 0 V

4 0 0 V

2 3 0 V


9. Connection diagr am

0

V e r s o r g u n g s -

s p a n n u n g

s u p p l y -

v o l t a g e

+ 1 2 V

J 1

+ T r

J 2

- T r

J 3

G N D

J 4

1 A 1

S t r o m m e s s u n g

c u r r e n t m e a s u

r e m e n t

4 0 0 V

2 3 0 V

0

S p a n n u n g s m e

s s u n g

v o l t a g e m e a s u

r e m e n t

A 1 1 2

D i g i t a l e i n g a n g

d i g i t a l i n p u t

D i g i t a l a u s g a n g

d i g i t a l o u t p u t

+ 1 2 V

J 1

+ T r

J 2

- T r

J 3

G N D

J 4

2

R e l a i s a u s g ä n g e / r e l a y s :

2 5 0 V A C

/ 5 A


Rev.:1.01

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1 7 0

1 5 0

1 7 0


10. Mechanical dr awings

10.1 BEL-TS25H2, BEL-TS50H

Erdung

230

3

3

1 7 6

1 7 0

8

5


2

230

8 214

6

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8

4,2

7





10.2 BEL-TS75H2, BEL-TS100


H2

Rev.:1.01

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Static Swtich ~ Operating Instructions

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