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AVR DIGITAL VOLTAGE STABILISERS
200920092009
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 2
Founded in 1950, ITALFARAD SpA is specialised in manufacturing electrical
capacitors for A.C. general applications, such as lighting, motor run, Power Factor
Correction.
ITALFARAD also produces L.V. fixed and automatic P.F.C. equipment and voltage
stabilisers .
In 1993, ITALFARAD was awarded a Quality System Certificate according to UNI EN
ISO 9001 Standards, this certificate has been updated to UNI EN ISO 9001:2000.
ITALFARAD have succeeded in obtaining an important share of the world market and
exports to more than 70 Countries all over the world.
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VOLTAGE STABILISERS
Index Page
INTRODUCTION AND TECHNOLOGY 4
ELECTRODYNAMIC VOLTAGE STABILISERS WITH DIGITAL CONTROL 8
MINI AVR Single-phase voltage stabilisers from 0.3kVA up to 150kVA 10
MIDI AVR Three-phase voltage stabilisers from 2kVA up to 450kVA 14
MAXI AVR Three-phase voltage stabilisers from 50kVA up to 3150kVA 22
DIMENSIONS 27
DIAGRAMS 28
ACCESSORIES 32
This document is property of ITALFARAD SpA: it is compulsory to notify the Company Head Office and ask for authorisation before any release or reproduction. ITALFARAD SpA shall not be held liable or responsible in any way whatsoever for unauthorised copies, alterations or additions made to the text or to the illustrations of this document. Any modification concerning the Company logo, symbols of the certifications, nomenclature and official data is strictly prohibited. For improvement purposes, the Company reserves the right to modify the products described in this catalogue at any moment without prior notice.
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INTRODUCTION & TECHNOLOGY
The increase of voltage sensitive equipment has determined a continuous request for means able to guarantee the
supply of steady voltage independently from mains variation.
Loss of data, defective products, security failure, machinery faults and inaccurate information are only a few examples of
possible problems due to unstable supply.
The voltage stabiliser has proved to be an efficient answer in order to prevent from potential damages due to input
voltage fluctuation.
Installing a voltage stabiliser is often the solution to ensure continuity and quality of production.
A typical voltage stabiliser is able to respond to changes in voltage level called sags (voltage drops) and surges
(voltage peaks) on the input line.
Sags might be due to undersized distribution lines, connection of large loads to the network, ground faults.
Surges might be generated by disconnection of large loads, increased voltage at the generating plant, atmospheric
events.
The duration of such phenomena depends on the cause and is not easily predictable.
Sags are generally more common, especially where the distribution is not wide and efficient.
Other disturbances like spikes, transients, high frequency noise and harmonic distortion have to be treated with the
addition of specific filtering systems.
The good functioning of the majority of electrical and electronic equipment depends on the supply voltage correctness
and steadiness. Nowadays, many industrial and private users are subject to long-lasting fluctuations that can be
inconvenient or even dangerous.
Office machines
Broadcasting systems
Food, Beverage and
Packaging
Private Houses with
High Installed
Industrial Plants
Test equipment
Electronically Driven
Machines
Computers
Laser cutting machines
VOLTAGEVOLTAGE
STABILISERSSTABILISERS
IMPORTANCE OF VOLTAGE STABILISERSIMPORTANCE OF VOLTAGE STABILISERS
USE OF A VOLTAGE STABILISERUSE OF A VOLTAGE STABILISER
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The kind of utilisation described above pushes towards the choice of a voltage stabiliser instead of a UPS in order to
have:
Lower costs
High power availability
Wider input variation ranges
Overload capacity up to 2In
Inrush current capacity up to 10In
Higher reliability and ruggedness
Absence of batteries and consequent easy storage and handling
Negligible harmonic distortion because of the use of electronic components only in auxiliary circuits
Service continuity
Generally speaking, a stabiliser can be chosen on the basis of a few elements:
1. NUMBER OF PHASES
2. RATED VOLTAGE
3. INPUT VARIATION RANGE
4. TYPE OF REGULATION
5. RATED POWER
6. INSTALLATION
Once these six points are established, any other optional request can be dealt with separately.
1. Number of phases
The stabiliser number of phases depends on the type of load:
1-phase load: 1-phase stabiliser
Combination of several 1-phase loads or 3-phase loads: 3-phase stabiliser or a 1-phase stabiliser on each load.
3-phase load: 3-phase stabiliser
2. Rated voltage
Always detect the nominal voltages that are supposed to be present at the input and at the output of the stabiliser. In
case of 3-phase systems, provide with the line-to-line voltage value.
Since there are different nominal voltages around the world, do not assume that YOUR nominal voltage is
automatically known.
The standard voltage stabiliser can operate with the following rated voltage:
COMPARISON WITH A UPS SYSTEMCOMPARISON WITH A UPS SYSTEM
CHOICE OF A VOLTAGE STABILISERSCHOICE OF A VOLTAGE STABILISERS
by adjusting the control card
VOLTAGE STABILISER
415 V ±15%
(353-415-477)
415 V ± 0.5%
by adjusting the control card
380 V ± 0.5%
standard setting
400 V ± 0.5%
VOLTAGE STABILISER
380 V ±15%
(323-380-437)
RATED VOLTAGE
400V ±15%
(340-400-460)
VOLTAGE STABILISER
INTRODUCTION & TECHNOLOGY
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3. Input variation range
It‟s a key information for the choice and the design of the stabiliser.
Establish the nature of the oscillation of the input voltage and always keep a safety margin on such percentage. The
standard production can include stabilisers for symmetrical and asymmetrical input variation range. If the input voltage
variation goes beyond the rated range, the difference between real and rated variation is transferred onto the output.
OUTPUT VOLTAGE WAVEFORM
INPUT VOLTAGE WAVEFORM
4. Type of regulation
Three-phase voltage regulation can be performed in two different ways:
independently on each phase. Used for 3-phase loads and 1-phase loads with up to 100% unbalance and
unbalanced input voltage. In this configuration the voltage stabiliser requires the neutral wire.
averaged on the three phases. Used for 3-phase loads and 2-phase loads with maximum 50% unbalance and
balanced input voltage. In this configuration the voltage stabiliser does not require the neutral wire.
1-ph. load
1-ph. load
1-ph. load
2-ph. load
3-ph. load
W2
OUTPUT
U2 V2 N
W1
STABILISER
INPUT
U1 V1 N
OUTPUT
V2U2 W2
3-ph. load
2-ph. load
STABILISER
INPUT
V1U1 W1
5. Rated power
Establish the power required to supply your load system and allow for an extra safety margin for possible future
extensions.
A voltage stabiliser power is expressed in kVA (kilovoltamperes), whilst load power is often given in kW (kilowatts). The
link between these two measuring units is provided by the power factor (cosØ):
Remember that: kVA = load voltage x load current (single-phase) kVA = x phase to phase load voltage x load current (three-phase) If the power factor or the load power in kW cannot be easily established, measure the absorbed currents in
order to allow for a correct design of the stabiliser.
All the stabilisers are designed for the maximum input current.
cos
kW kVA
INTRODUCTION & TECHNOLOGY
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In order to provide with the best machine, it is recommended to inform about the installation condition. It is necessary to
know:
IP protection degree
Indoor or outdoor installation
Installation site altitude and climatic properties
Ambient temperature
Possible environmental hazards such aggressive atmosphere, exposure to chemical components and so on.
The production covers an extensive range of standard types:
Single-phase electrodynamic line from 0.3 kVA up to 150kVA (MINI AVR)
Three-phase electrodynamic line from 2 kVA up to 450kVA (MIDI AVR Y, MIDI AVR A)
Three-phase electrodynamic line from 50 kVA up to 4000kVA (MAXI AVR)
Choosing an electromechanical voltage stabiliser means:
Smooth and reliable regulation
Up to ±0.5% output accuracy (electrodynamic stabilisers), up to ±0.3% output accuracy (static stabilisers)
Admitted inrush current up to 10In
Negligible introduction of harmonic distortion
High efficiency
High ratings
Access to the equipment can only be obtained by opening or dismantling the metal enclosure using appropriate tools:
the protection against direct contact is inherently obtained and complies with IP21 degree.
Inside the equipment there are dangerous voltages.
Access to the components for installation, setting, inspection and maintenance must be granted only to
qualified personnel in charge of it.
The stabiliser must not function without the earth connection.
A circuit breaker should be installed upstream the equipment in accordance with the requirements of IEC364 (CEI 64-
8) “Electrical installations”.
The stabiliser must be used exclusively on the purpose for which it has been designed and built.
Any other utilisation has to be considered as inappropriate and therefore dangerous.
The Company will not to be held liable for possible damages to people, animals and belongings due to incorrect use or
installation.
InstallationInstallation
Available RangeAvailable Range
AdvantagesAdvantages
Personal SafetyPersonal Safety
INTRODUCTION & TECHNOLOGY
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ELECTRODYNAMIC STABILIZERS
WITH DIGITAL CONTROL
The stabilising system is designed to operate with rated voltage in accordance with IEC 38 and is expected to be
connected between main power supply and load.
The purpose is to supply the loads a stabilised voltage having an input voltage variable with respect to the rated value.
The highest input current is obtained with the minimum rated voltage; as the output voltage is stabilised within a close
range, the output current is considered to be constant.
Stabilisation takes place on the „rms‟ value of the voltage and is not affected by harmonic distortion in the mains.
The stabiliser can operate with a load variation range from 0 to 100%; the response time depends on the input voltage
percentage variation and on the type of design (indicatively, it can vary between 8 and 80msec/V).
The voltage stabiliser is not affected by the load power factor and since regulation is performed without chopping the
voltage sine wave, neither appreciable harmonic distortion nor phase displacement is introduced on the downstream
line.
The equipment is housed in a metal enclosure with RAL7035 finish and IP21 protection class. Depending on the type,
the stabilisers can be air-cooled (natural or aided convection) or oil-cooled.
When the input variation percentage is –25%, -30% or –45% the unit is provided with a special component (super
capacitor) able to adjust automatically the output voltage to the minimum value after a failure in the mains.
Such device prevents from possible damages to the user due to the potentially high voltages that might occur when the
rated supply is re-established.
The main components of the stabiliser are:
1. Buck/boost transformer
The buck/boost transformer is a standard dry-type transformer; the secondary winding is connected in series to the
mains while the primary winding is supplied by the voltage regulator.
2. Voltage regulator
The voltage regulator consists of an autotransformer with continuously variable transformer ratio. The voltage intake
varies depending on the contact position; therefore the voltage supplied to the transformer primary winding also
varies. The voltage across the regulator contacts (and consequently that on the secondary winding of the buck/boost
transformer) is either in phase or in opposition to the supply voltage, and it is therefore added or subtracted to the
supply voltage, thus compensating its variations.
3. Auxiliary circuit with microprocessor
The DSP microprocessor-based control circuit (specific for fully digital drives) compares the output voltage value to
the adjusted one. When the percentage variation is too high, the control drives the voltage regulator gear motor. By
doing so the regulator rollers change their position thus varying the voltage drawn and supplied to the buck/boost
transformer primary winding.
All the described activities are performed automatically.
The voltage stabiliser can operate with input and output voltages different from the rated voltage. Such setting can be
performed at the factory or at the Customer's premises by adjusting the dip-switch mounted on the electronic control
card within the allowed range and according to the instructions described in the handbook. In the MAXI AVR stabilisers,
such setting can be performed by communicating directly with the microprocessor from a PC (through an RS232
interface). If the rated output voltage differs from the input voltage, a suitable step-up or step-down autotransformer
should be installed in the equipment. However the voltage stabiliser can work just as well after accepting that the range
of input voltage variation is not symmetric.
Description of the unitDescription of the unit
Main ComponentsMain Components
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Output ±0.5%
Input
Voltage regulator
Buck-boost Transformer
N
Standard models: ±15%, ±20%, ±25%, ±30% +15%/-25%, +15%/-35%, +15%/-45%
A “buck-boost” transformer is connected between input and output. The voltage on the primary side is determined by the position of the rollers on the regulator
With rollers and no sliding (consuming) parts!
Toroidal and Column RegulatorToroidal and Column Regulator
OPERATING PRINCIPLE
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The MINI AVR voltage stabiliser covers the power rating range between 0.3kVA and 150kVA and allows for the choice
of several input voltage variation percentages within a broad range (from +30% up to -45%).
For ±15%, ±20%, ±25 and ±30% range the change of stabilisation is obtained through different internal connections.
Fuses or automatic circuit breakers are provided on the regulation circuit to protect against overload and short circuit on
the voltage regulator. The auxiliary circuit is protected by fuses.
Where provided, a buzzer is activated whenever an overload condition occurs.
In the lower rating types, a pilot light that indicates when the stabiliser is connected to the mains in mounted on the front.
For higher ratings, the stabiliser is provided with a multi-task digital network analyser. Such instrument is able to
provide with information regarding the status of the line downstream the voltage stabiliser such as phase and linked
voltages, current, power factor, active power, apparent power, reactive power, etc.
The logic control is based on a microprocessor.
FREQUENCY 47/65Hz
ADMITTED LOAD VARIATION from 0 to 100%
MAINS WAVEFORM DISTORTION INCREMENT < 0.2%
COOLING Natural Air – Aided Air
AMBIENT TEMPERATURE -15/+45 °C
STORAGE TEMPERATURE -25/+60°C
RELATIVE HUMIDITY 95%
ADMITTED OVERLOAD 200% 2min
COLOUR RAL 7035
PROTECTION IP 21
INSTALLATION Indoor
Any other variation range not mentioned in the table above can be dealt with on request
±15% ±20% ±25% ±30% -25/+15% -35/+15% -45/+15%
1 0.7 0.5 0.3 0.7 0.5 0.3
2.5 2 1.5 1 2 1.5 1
5 4 3 2 4 3 2
7 5 4 3 5 4 3
10 7 5 4 7 5 4
15 10 7 5 10 7 5
20 15 10 7 15 10 7
25 20 15 10 20 15 10
35 25 20 15 25 20 15
45 35 25 20 35 25 20
60 45 35 25 45 35 25
75 60 45 35 60 45 35
100 75 60 45 75 60 45
150 100 75 60 100 75 60
Mini AVR Standard FeaturesMini AVR Standard Features
Rating in Relation to the Input Variation PercentageRating in Relation to the Input Variation Percentage
MINIMINI
AVRAVR MINI AVR
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MINIMINI
AVRAVR MINI AVR
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±15% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-15 1 230 5 230 4 >94 16 12 16
MINI AVR 113-15 2.5 230 12.5 230 11 >96 16 12 23
MINI AVR 115-15 5 230 25 230 22 >97 16 12 28
MINI AVR 117-15 7 230 35 230 31 >98 16 13 41
MINI AVR 119-15 10 230 50 230 44 >98 16 13 47
MINI AVR 121-15 15 230 75 230 65 >98 16 13 55
MINI AVR 123-15 20 230 102 230 87 >98 18 23 130
MINI AVR 125-15 25 230 128 230 109 >98 18 23 140
MINI AVR 127-15 35 230 179 230 152 >98 18 23 150
MINI AVR 129-15 45 230 230 230 196 >98 18 23 200
MINI AVR 128-15 60 230 307 230 261 >98 18 24 320
MINI AVR 131-15 75 230 384 230 326 >98 18 24 390
MINI AVR 133-15 100 230 511 230 435 >98 18 25 550
MINI AVR 135-15 150 230 767 230 652 >98 18 25 650
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±20% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-20 0.7 230 3.8 230 3 >94 12 12 16
MINI AVR 113-20 2 230 11 230 9 >96 12 12 23
MINI AVR 115-20 4 230 22 230 17.5 >97 12 12 28
MINI AVR 117-20 5 230 28 230 22 >98 12 13 41
MINI AVR 119-20 7 230 39 230 31 >98 12 13 47
MINI AVR 121-20 10 230 54 230 44 >98 12 13 55
MINI AVR 123-20 15 230 81 230 65 >98 14 23 130
MINI AVR 125-20 20 230 109 230 87 >98 14 23 140
MINI AVR 127-20 25 230 136 230 109 >98 14 23 150
MINI AVR 129-20 35 230 190 230 152 >98 14 23 200
MINI AVR 128-20 45 230 244 230 196 >98 14 24 320
MINI AVR 131-20 60 230 326 230 261 >98 14 24 390
MINI AVR 133-20 75 230 407 230 326 >98 14 25 550
MINI AVR 135-20 100 230 544 230 435 >98 14 25 650
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-25 0.5 230 3 230 2.2 >96 10 12 16
MINI AVR 113-25 1.5 230 9 230 6.5 >97 10 12 23
MINI AVR 115-25 3 230 18 230 13 >98 10 12 28
MINI AVR 117-25 4 230 23 230 17.5 >98 10 13 41
MINI AVR 119-25 5 230 29 230 22 >98 10 13 47
MINI AVR 121-25 7 230 41 230 31 >98 10 13 55
MINI AVR 123-25 10 230 57 230 43 >98 11 23 130
MINI AVR 125-25 15 230 87 230 65 >98 11 23 140
MINI AVR 127-25 20 230 116 230 87 >98 11 23 150
MINI AVR 128-25 25 230 144 230 108 >98 11 23 200
MINI AVR 129-25 35 230 203 230 152 >98 11 24 320
MINI AVR 131-25 45 230 261 230 196 >98 11 24 390
MINI AVR 133-25 60 230 347 230 261 >98 11 25 550
MINI AVR 135-25 75 230 435 230 326 >98 11 25 650
Mini AVR ±15% Automatic SingleMini AVR ±15% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
Mini AVR ±20% Automatic SingleMini AVR ±20% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
Mini AVR ±25% Automatic SingleMini AVR ±25% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
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TYPE RATED POWER [kVA]
INPUT VOLTAGE
±30% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-30 0.3 230 2 230 1.3 >96 8 12 16
MINI AVR 113-30 1 230 6.2 230 4 >97 8 12 23
MINI AVR 115-30 2 230 12.4 230 9 >98 8 12 28
MINI AVR 117-30 3 230 18.6 230 13.5 >98 8 13 41
MINI AVR 119-30 4 230 24.8 230 18 >98 8 13 47
MINI AVR 121-30 5 230 31 230 22 >98 8 13 55
MINI AVR 123-30 7 230 43 230 30 >98 9 23 130
MINI AVR 125-30 10 230 61 230 43 >98 9 23 140
MINI AVR 127-30 15 230 93 230 65 >98 9 23 150
MINI AVR 128-30 20 230 124 230 87 >98 9 23 200
MINI AVR 129-30 25 230 156 230 109 >98 9 24 320
MINI AVR 131-30 35 230 217 230 152 >98 9 24 390
MINI AVR 133-30 45 230 279 230 195 >98 9 25 550
MINI AVR 135-30 60 230 372 230 261 >98 9 25 650
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-25/15 0.7 230 4 230 3 >95 12 12 17
MINI AVR 113-25/15 2 230 11 230 8 >96 12 12 24
MINI AVR 115-25/15 4 230 23
230 17 >97 12 12 29
MINI AVR 117-25/15 5 230 29 230 22 >97 12 13 42
MINI AVR 119-25/15 7 230 40 230 30 >97 12 13 48
MINI AVR 121-25/15 10 230 58 230 43 >97
12 13 56
MINI AVR 123-25/15 15 230 87 230 65 >97 14 23 140
MINI AVR 125-25/15 20 230 116 230 87 >97 14 23 150
MINI AVR 127-25/15 25 230 145 230 108 >97 14 23 160
MINI AVR 128-25/15 35 230 203 230 152 >97 14 24 210
MINI AVR 129-25/15 45 230 261 230 195 >97 14 24 330
MINI AVR 131-25/15 60 230 348 230 261 >97 14 24 400
MINI AVR 133-25/15 75 230 435 230 326 >97 14 25 500
MINI AVR 135-25/15 100 230 580 230 435 >97 14 25 660
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-35% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-35/15 0.5 230 3 230 2 >95 10 12 17
MINI AVR 113-35/15 1.5 230 10 230 6 >96 10 12 24
MINI AVR 115-35/15 3 230 20 230 13 >97 10 12 29
MINI AVR 117-35/15 4 230 27 230 17 >97 10 13 42
MINI AVR 119-35/15 5 230 33 230 22 >97 10 13 48
MINI AVR 121-35/15 7 230 47 230 30 >97 11 13 56
MINI AVR 123-35/15 10 230 67 230 43 >97 11 23 140
MINI AVR 125-35/15 15 230 100 230 65 >97 11 23 150
MINI AVR 127-35/15 20 230 134 230 87 >97 11 23 160
MINI AVR 128-35/15 25 230 167 230 108 >97 11 24 210
MINI AVR 129-35/15 35 230 234 230 152 >97 11 24 330
MINI AVR 131-35/15 45 230 301 230 195 >97 11 24 400
MINI AVR 133-35/15 60 230
401 230 261 >97 11 25 500
MINI AVR 135-35/15 75 230 501 230 326 >97 11 25 660
Mini AVR ±30% Automatic SingleMini AVR ±30% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
Mini AVR Mini AVR --25%/+15% Automatic Single25%/+15% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
Mini AVR Mini AVR ––35%/+15% Automatic Single35%/+15% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
MINIMINI
AVRAVR MINI AVR
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TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-45% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MINI AVR 111-45/15 0.3 230 2.3 230 1.3 >95 8 12 17
MINI AVR 113-45/15 1 230 8 230 4 >96 8 12 24
MINI AVR 115-45/15 2 230 16 230 8 >97 8 12 29
MINI AVR 117-45/15 3 230 24 230 13 >97 8 13 42
MINI AVR 119-45/15 4 230 31 230 17 >97 8 13 48
MINI AVR 121-45/15 5 230 39 230 22 >97 9 13 56
MINI AVR 123-45/15 7 230 55 230 30 >97 9 23 140
MINI AVR 125-45/15 10 230 79 230 43 >97 9 23 150
MINI AVR 127-45/15 15 230 118 230 65 >97 9 23 160
MINI AVR 128-45/15 20 230 158 230 87 >97 9 24 210
MINI AVR 129-45/15 25 230 197 230 108 >97 9 24 330
MINI AVR 131-45/15 35 230 276 230 152 >97 9 24 400
MINI AVR 133-45/15 45 230 355 230 195 >97 9 25 500
MINI AVR 135-45/15 60 230 474 230 261 >97 9 25 660
The technical data in the above tables are subject to change by the Company either for internal reasons or because of a specific request from the Customer
Input output voltage 50Hz: 220/240V - Input output voltage 60Hz: 208/240V
Mini AVR Mini AVR ––45%/+15% Automatic Single45%/+15% Automatic Single--Phase Voltage StabiliserPhase Voltage Stabiliser
MINIMINI
AVRAVR MINI AVR
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The MIDI AVR voltage stabiliser covers the power rating range between 2kVA and 450kVA and allows for the choice of
several input voltage variation percentages within a broad range (from +30% up to -45%).
For ±15% and ±20% range, the change of stabilisation is obtained through different internal connections.
The regulation in the MIDI AVR Y stabilisers is independent on each phase. These stabilisers are used with three-phase
loads and single-phase loads with 100% unbalance and unbalanced input rated voltages. In this configuration the
voltage stabiliser requires the neutral wire.
The regulation in the MIDI AVR A stabilisers is performed on the average three-phase voltage. These stabilisers are
used with three-phase loads and two-phase loads with 50% maximum unbalance and balanced input rated voltages. In
this configuration the voltage stabiliser does not require the neutral wire.
Fuses or automatic circuit breakers are provided on the regulation circuit to protect against overload and short circuit on
the voltage regulator.
The auxiliary circuit is protected by fuses.
Where provided, a buzzer is activated whenever an overload condition occurs.
The measuring instrumentation for the MIDI AVR stabilisers mounted on the cabinet door and consists of a multi-task
digital network analyser. Such instrument is able to provide with information regarding the status of the line
downstream the voltage stabiliser such as phase and linked voltages, current, power factor, active power, apparent
power, reactive power, etc.
The logic control is based on a microprocessor.
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 15
FREQUENCY 47/65Hz
ADMITTED LOAD VARIATION from 0 to 100%
ADMITTED LOAD UNBALANCE up to 50%
MAINS WAVEFORM DISTORTION INCREMENT < 0.2%
COOLING Aided air
AMBIENT TEMPERATURE -15/+45 °C
STORAGE TEMPERATURE -25/+60°C
RELATIVE HUMIDITY 95%
ADMITTED OVERLOAD 200% 2min
COLOUR RAL 7035
PROTECTION IP 21
INSTALLATION Indoor
Any other variation range not mentioned in the table above can be dealt with on request.
±15% ±20% ±25% ±30% -25/+15% -35/+15% -45/+15%
5 4 3 2 4 3 2
10 7 4 3 7 4 3
15 10 7 4 10 7 4
20 15 10 7 15 10 7
30 20 15 10 20 15 10
45 30 20 15 30 20 15
60 45 30 20 45 30 20
75 60 45 30 60 45 30
105 75 60 45 75 60 45
135 105 75 60 105 75 60
175 135 105 75 135 105 75
230 175 135 105 175 135 105
300 230 175 135 230 175 135
450 300 230 175 300 230 175
Midi AVR A Standard FeaturesMidi AVR A Standard Features
Rating in Relation the Input Variation PercentageRating in Relation the Input Variation Percentage
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 16
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±15% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-15 5 400 8 400 7 >95 16 22 82
MIDI AVR 335-15 10 400 16 400 14 >96 16 22 82
MIDI AVR 337-15 15 400 25 400 21 >97 16 22 109
MIDI AVR 339-15 20 400 33 400 28 >98 16 23 145
MIDI AVR 341-15 30 400 50 400 43 >98 16 23 170
MIDI AVR 343-15 45 400 76 400 65 >98 16 23 190
MIDI AVR 345-15 60 400 102 400 87 >98 18 24 320
MIDI AVR 347-15 75 400 126 400 108 >98 18 24 380
MIDI AVR 349-15 105 400 176 400 152 >98 18 25 460
MIDI AVR 351-15 135 400 229 400 195 >98 18 25 507
MIDI AVR 353-15 175 400 297 400 253 >98 18 25 850
MIDI AVR 355-15 230 400 390 400 332 >98 18 26 930
MIDI AVR 357-15 300 400 509 400 433 >98 18 26 760
MIDI AVR 359-15 450 400 765 400 650 >98 18 50 1200
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±20% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-20 4 400 7 400 6 >95 12 22 82
MIDI AVR 335-20 7 400 13 400 10 >96 12 22 82
MIDI AVR 337-20 10 400 17 400 14 >97 12 22 109
MIDI AVR 339-20 15 400 26 400 21 >98 12 23 145
MIDI AVR 341-20 20 400 36 400 29 >98 12 23 170
MIDI AVR 343-20 30 400 54 400 43 >98 12 23 190
MIDI AVR 345-20 45 400 81 400 65 >98 14 24 320
MIDI AVR 347-20 60 400 107 400 86 >98 14 24 380
MIDI AVR 349-20 75 400 135 400 108 >98 14 25 460
MIDI AVR 351-20 105 400 187 400 150 >98 14 25 507
MIDI AVR 353-20 135 400 244 400 195 >98 14 25 850
MIDI AVR 355-20 175 400 316 400 253 >98 14 26 930
MIDI AVR 357-20 230 400 415 400 332 >98 14 26 760
MIDI AVR 359-20 300 400 542 400 433 >98 14 50 1200
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-25 3 400 6 400 4 >96 10 22 82
MIDI AVR 335-25 4 400 8 400 6 >97 10 22 82
MIDI AVR 337-25 7 400 13 400 10 >98 10 22 109
MIDI AVR 339-25 10 400 19 400 14 >98 10 23 145
MIDI AVR 341-25 15 400 29 400 22 >98 10 23 170
MIDI AVR 343-25 20 400 38 400 29 >98 10 23 190
MIDI AVR 345-25 30 400 57 400 43 >98 11 24 320
MIDI AVR 347-25 45 400 86 400 65 >98 11 24 380
MIDI AVR 349-25 60 400 115 400 86 >98 11 25 460
MIDI AVR 351-25 75 400 144 400 108 >98 11 25 507
MIDI AVR 353-25 105 400 203 400 152 >98 11 25 850
MIDI AVR 355-25 135 400 260 400 195 >98 11 26 930
MIDI AVR 357-25 175 400 337 400 253 >98 11 26 760
MIDI AVR 359-25 230 400 443 400 332 >98 14 50 1200
Midi AVR A ±15% Digital ThreeMidi AVR A ±15% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
Midi AVR A ±20% Digital ThreeMidi AVR A ±20% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
Midi AVR A ±25% Digital ThreeMidi AVR A ±25% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 17
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±30% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-30 2 400 4 400 3 >96 8 22 82
MIDI AVR 335-30 3 400 6 400 4 >96 8 22 82
MIDI AVR 337-30 4 400 8 400 6 >97 8 22 109
MIDI AVR 339-30 7 400 14 400 10 >98 8 23 145
MIDI AVR 341-30 10 400 20 400 14 >98 8 23 170
MIDI AVR 343-30 15 400 31 400 22 >98 8 23 190
MIDI AVR 345-30 20 400 41 400 29 >98 9 24 320
MIDI AVR 347-30 30 400 61 400 43 >98 9 24 380
MIDI AVR 349-30 45 400 93 400 65 >98 9 25 460
MIDI AVR 351-30 60 400 123 400 87 >98 9 25 507
MIDI AVR 353-30 75 400 154 400 108 >98 9 25 850
MIDI AVR 355-30 105 400 217 400 152 >98 9 26 930
MIDI AVR 357-30 135 400 278 400 195 >98 9 26 760
MIDI AVR 359-30 175 400 361 400 253 >98 9 50 1200
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-25/15 4 400 8 400 6 >94 12 22 92
MIDI AVR 335-25/15 7 400 13 400 10 >95 12 22 92
MIDI AVR 337-25/15 10 400 19 400 14 >96 12 22 119
MIDI AVR 339-25/15 15 400 27 400 22 >97 12 23 155
MIDI AVR 341-25/15 20 400 39 400 29 >97 12 23 180
MIDI AVR 343-25/15 30 400 57 400 43 >97 12 23 210
MIDI AVR 345-25/15 45 400 87 400 65 >97 14 24 340
MIDI AVR 347-25/15 60 400 116 400 87 >97 14 24 400
MIDI AVR 349-25/15 75 400 144 400 108 >97 14 25 480
MIDI AVR 351-25/15 105 400 202 400 152 >97 14 25 527
MIDI AVR 353-25/15 135 400 260 400 195 >97 14 25 850
MIDI AVR 355-25/15 175 400 337 400 253 >97 14 26 930
MIDI AVR 357-25/15 230 400 443 400 332 >97 14 26 1100
MIDI AVR 359-25/15 300 400 578 400 433 >97 14 50 1400
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-35% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-35/15 3 400 7 400 4 >94 10 22 92
MIDI AVR 335-35/15 4 400 9 400 6 >95 10 22 92
MIDI AVR 337-35/15 7 400 15 400 10 >96 10 22 119
MIDI AVR 339-35/15 10 400 21 400 14 >97 10 23 155
MIDI AVR 341-35/15 15 400 33 400 22 >97 10 23 180
MIDI AVR 343-35/15 20 400 44 400 29 >97 10 23 210
MIDI AVR 345-35/15 30 400 66 400 43 >97 11 24 340
MIDI AVR 347-35/15 45 400 100 400 65 >97 11 24 400
MIDI AVR 349-35/15 60 400 133 400 87 >97 11 25 480
MIDI AVR 351-35/15 75 400 166 400 108 >97 11 25 527
MIDI AVR 353-35/15 105 400 234 400 152 >97 11 25 850
MIDI AVR 355-35/15 135 400 300 400 195 >97 11 26 930
MIDI AVR 357-35/15 175 400 389 400 253 >97 11 26 1100
MIDI AVR 359-35/15 230 400 511 400 332 >97 11 50 1400
Midi AVR A ±30% Digital ThreeMidi AVR A ±30% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
Midi AVR A Midi AVR A ––25%/+15% Digital Three25%/+15% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
Midi AVR A Midi AVR A ––35%/+15% Digital Three35%/+15% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 18
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-45% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-45/15 2 400 5 400 3 >94 8 22 92
MIDI AVR 335-45/15 3 400 8 400 4 >95 8 22 92
MIDI AVR 337-45/15 4 400 10 400 6 >95 8 22 119
MIDI AVR 339-45/15 7 400 18 400 10 >96 8 23 155
MIDI AVR 341-45/15 10 400 25 400 14 >97 8 23 180
MIDI AVR 343-45/15 15 400 39 400 22 >97 8 23 210
MIDI AVR 345-45/15 20 400 52 400 29 >97 9 24 340
MIDI AVR 347-45/15 30 400 79 400 43 >97 9 24 400
MIDI AVR 349-45/15 45 400 118 400 65 >97 9 25 480
MIDI AVR 351-45/15 60 400 158 400 87 >97 9 25 527
MIDI AVR 353-45/15 75 400 196 400 108 >97 9 25 850
MIDI AVR 355-45/15 105 400 276 400 152 >97 9 26 930
MIDI AVR 357-45/15 135 400 354 400 195 >97 9 26 1100
MIDI AVR 359-45/15 175 400 460 400 253 >97 9 50 1400
FREQUENCY 47/65Hz
ADMITTED LOAD VARIATION from 0 to 100%
ADMITTED LOAD UNBALANCE up to 100%
MAINS WAVEFORM DISTORTION INCREMENT < 0.2%
COOLING Aided Air
AMBIENT TEMPERATURE -15/+45 °C
STORAGE TEMPERATURE -25/+60°C
RELATIVE HUMIDITY 95%
ADMITTED OVERLOAD 200% 2min
COLOUR RAL 7035
PROTECTION IP 21
INSTALLATION Indoor
Any other variation range not mentioned in the table above can be dealt with on request.
±15% ±20% ±25% ±30% -25/+15% -35/+15% -45/+15%
5 4 3 2 4 3 2
10 7 4 3 7 4 3
15 10 7 4 10 7 4
20 15 10 7 15 10 7
30 20 15 10 20 15 10
45 30 20 15 30 20 15
60 45 30 20 45 30 20
75 60 45 30 60 45 30
105 75 60 45 75 60 45
135 105 75 60 105 75 60
175 135 105 75 135 105 75
230 175 135 105 175 135 105
300 230 175 135 230 175 135
450 300 230 175 300 230 175
Midi AVR A Midi AVR A ––45%/+15% Digital Three45%/+15% Digital Three--Phase Voltage StabiliserPhase Voltage Stabiliser
Midi AVR Y Standards FeaturesMidi AVR Y Standards Features
Rating in Relation to the Input Variation PercentageRating in Relation to the Input Variation Percentage
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 19
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±15% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-15 5 400 8 400 7 >95 16 22 90
MIDI AVR 446-15 10 400 16 400 14 >96 16 22 90
MIDI AVR 448-15 15 400 25 400 21 >97 16 22 110
MIDI AVR 450-15 20 400 33 400 28 >98 16 23 155
MIDI AVR 452-15 30 400 50 400 43 >98 16 23 180
MIDI AVR 454-15 45 400 76 400 65 >98 16 23 200
MIDI AVR 456-15 60 400 102 400 87 >98 18 24 380
MIDI AVR 458-15 75 400 126 400 108 >98 18 24 430
MIDI AVR 460-15 105 400 176 400 152 >98 18 25 490
MIDI AVR 462-15 135 400 229 400 195 >98 18 25 580
MIDI AVR 464-15 175 400 297 400 253 >98 18 26 950
MIDI AVR 466-15 230 400 390 400 332 >98 18 26 1030
MIDI AVR 468-15 300 400 509 400 433 >98 18 26 860
MIDI AVR 470-15 450 400 765 400 650 >98 18 50 1300
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±20% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-20 4 400 7 400 6 >95 12 22 90
MIDI AVR 446-20 7 400 13 400 10 >96 12 22 90
MIDI AVR 448-20 10 400 17 400 14 >97 12 22 110
MIDI AVR 450-20 15 400 26 400 21 >98 12 23 155
MIDI AVR 452-20 20 400 36 400 29 >98 12 23 180
MIDI AVR 454-20 30 400 54 400 43 >98 12 23 200
MIDI AVR 456-20 45 400 81 400 65 >98 14 24 380
MIDI AVR 458-20 60 400 107 400 86 >98 14 24 430
MIDI AVR 460-20 75 400 135 400 108 >98 14 25 490
MIDI AVR 462-20 105 400 187 400 150 >98 14 25 580
MIDI AVR 464-20 135 400 244 400 195 >98 14 26 950
MIDI AVR 466-20 175 400 316 400 253 >98 14 26 1030
MIDI AVR 468-20 230 400 415 400 332 >98 14 26 860
MIDI AVR 470-20 300 400 542 400 433 >98 14 50 1300
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-25 3 400 6 400 4 >96 10 22 90
MIDI AVR 446-25 4 400 8 400 6 >97 10 22 90
MIDI AVR 448-25 7 400 13 400 10 >98 10 22 110
MIDI AVR 450-25 10 400 19 400 14 >98 10 23 155
MIDI AVR 452-25 15 400 29 400 22 >98 10 23 180
MIDI AVR 454-25 20 400 38 400 29 >98 10 23 200
MIDI AVR 456-25 30 400 57 400 43 >98 11 24 380
MIDI AVR 458-25 45 400 86 400 65 >98 11 24 430
MIDI AVR 460-25 60 400 115 400 86 >98 11 25 490
MIDI AVR 462-25 75 400 144 400 108 >98 11 25 580
MIDI AVR 464-25 105 400 203 400 152 >98 11 26 950
MIDI AVR 466-25 135 400 260 400 195 >98 11 26 1030
MIDI AVR 468-25 175 400 337 400 253 >98 11 26 860
MIDI AVR 470-25 230 400 443 400 332 >98 11 50 1300
Midi AVR Y ±15% Digital ThreeMidi AVR Y ±15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Midi AVR Y ±20% Digital ThreeMidi AVR Y ±20% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Midi AVR Y ±25% Digital ThreeMidi AVR Y ±25% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 20
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±30% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-30 2 400 4 400 3 >96 8 22 90
MIDI AVR 446-30 3 400 6 400 4 >96 8 22 90
MIDI AVR 448-30 4 400 8 400 6 >97 8 22 110
MIDI AVR 450-30 7 400 14 400 10 >98 8 23 155
MIDI AVR 452-30 10 400 20 400 14 >98 8 23 180
MIDI AVR 454-30 15 400 31 400 22 >98 8 23 200
MIDI AVR 456-30 20 400 41 400 29 >98 9 24 380
MIDI AVR 458-30 30 400 61 400 43 >98 9 24 430
MIDI AVR 460-30 45 400 93 400 65 >98 9 25 490
MIDI AVR 462-30 60 400 123 400 87 >98 9 25 580
MIDI AVR 464-30 75 400 154 400 108 >98 9 26 950
MIDI AVR 466-30 105 400 217 400 152 >98 9 26 1030
MIDI AVR 468-30 135 400 278 400 195 >98 9 26 860
MIDI AVR 470-30 175 400 361 400 253 >98 9 50 1300
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 333-25/15 4 400 8 400 6 >94 12 22 100
MIDI AVR 335-25/15 7 400 13 400 10 >95 12 22 100
MIDI AVR 337-25/15 10 400 19 400 14 >96 12 22 120
MIDI AVR 339-25/15 15 400 27 400 22 >97 12 23 165
MIDI AVR 341-25/15 20 400 39 400 29 >97 12 23 190
MIDI AVR 343-25/15 30 400 57 400 43 >97 12 23 220
MIDI AVR 345-25/15 45 400 87 400 65 >97 14 24 400
MIDI AVR 347-25/15 60 400 116 400 87 >97 14 24 450
MIDI AVR 349-25/15 75 400 144 400 108 >97 14 25 510
MIDI AVR 351-25/15 105 400 202 400 152 >97 14 25 600
MIDI AVR 353-25/15 135 400 260 400 195 >97 14 26 950
MIDI AVR 355-25/15 175 400 337 400 253 >97 14 26 1030
MIDI AVR 357-25/15 230 400 443 400 332 >97 14 26 1200
MIDI AVR 359-25/15 300 400 578 400 433 >97 14 50 1500
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-35% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-35/15 3 400 7 400 4 >94 10 22 100
MIDI AVR 446-35/15 4 400 9 400 6 >95 10 22 100
MIDI AVR 448-35/15 7 400 15 400 10 >96 10 22 120
MIDI AVR 450-35/15 10 400 21 400 14 >97 10 23 165
MIDI AVR 452-35/15 15 400 33 400 22 >97 10 23 190
MIDI AVR 454-35/15 20 400 44 400 29 >97 10 23 220
MIDI AVR 456-35/15 30 400 66 400 43 >97 11 24 400
MIDI AVR 458-35/15 45 400 100 400 65 >97 11 24 450
MIDI AVR 460-35/15 60 400 133 400 87 >97 11 25 510
MIDI AVR 462-35/15 75 400 166 400 108 >97 11 25 600
MIDI AVR 464-35/15 105 400 234 400 152 >97 11 26 950
MIDI AVR 466-35/15 135 400 300 400 195 >97 11 26 1030
MIDI AVR 468-35/15 175 400 389 400 253 >97 11 26 1200
MIDI AVR 470-35/15 230 400 511 400 332 >97 11 50 1500
Midi AVR Y ±30% Digital ThreeMidi AVR Y ±30% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Midi AVR Y Midi AVR Y --25%/+15% Digital Three25%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Midi AVR Y Midi AVR Y ––35%/+15% Digital Three35%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 21
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-45% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MIDI AVR 444-45/15 2 400 5 400 3 >94 8 22 100
MIDI AVR 446-45/15 3 400 8 400 4 >95 8 22 100
MIDI AVR 448-45/15 4 400 10 400 6 >95 8 22 120
MIDI AVR 450-45/15 7 400 18 400 10 >96 8 23 165
MIDI AVR 452-45/15 10 400 25 400 14 >97 8 23 190
MIDI AVR 454-45/15 15 400 39 400 22 >97 8 23 220
MIDI AVR 456-45/15 20 400 52 400 29 >97 9 24 400
MIDI AVR 458-45/15 30 400 79 400 43 >97 9 24 450
MIDI AVR 460-45/15 45 400 118 400 65 >97 9 25 510
MIDI AVR 462-45/15 60 400 158 400 87 >97 9 25 600
MIDI AVR 464-45/15 75 400 196 400 108 >97 9 26 950
MIDI AVR 466-45/15 105 400 276 400 152 >97 9 26 1030
MIDI AVR 468-45/15 135 400 354 400 195 >97 9 26 1200
MIDI AVR 470-45/15 175 400 460 400 253 >97 9 50 1500
MAXI AVR Digital Control
The technical data in the above tables are subject to change by the Company either for internal reasons or because of a specific request from the Customer
Input output voltage 50Hz: 380/415V - Input output voltage 60Hz: 460/480V
Midi AVR Y Midi AVR Y ––45%/+15% Digital Three45%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MIDIMIDI
AVRAVR MIDI AVR A & Y
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 22
The MAXI AVR line covers the range from 50kVA to 3150kVA and allows for the choice of several input voltage variation
percentages within a broad range (from +30% up to -45%).
The MAXI AVR voltage stabilisers are built with independent regulation on each phase.
The MAXI AVR type is used when the grid is unbalanced and when unbalanced three-phase loads and/or single-phase
loads need to be supplied. In this situation, the presence of the neutral wire is required.
The stabilisers are air cooled (natural convection with cabinet internal temperature lower than 40°C).
The measuring instrumentation for the SIRIUS stabilisers is incorporated in a control panel on the cabinet door and
consists of two multi-task digital network analysers. Such instruments are able to provide with information regarding
the status of the lines upstream and downstream the voltage stabiliser, such as phase and linked voltages, current,
power factor, active power, apparent power, reactive power, etc. Said information can also be monitored on a remote
PC via an RS485 output, an RS485/RS232 converter and a special software package supplied with the unit. Pilot lights
are provided for each phase signalling „power on‟, reaching of voltage regulation limits and direction of voltage regulation
(increase/decrease). Alarms for minimum and maximum voltages, maximum current, over-temperature and ventilation
failure are also indicated. The alarm indicators are accompanied by an acoustic alarm.
All these signals (consisting of several LEDs) are located on the control panel mounted on the cabinet door. The
stabiliser is provided with a voltage regulator protection circuit controlled by thermal probes. The circuit works in case of
temporary overload: it opens the connection between the voltage regulator and the buck/boost transformer and short-
circuits the transformer primary winding at the same time.
By doing so, the transformer voltage drop is cancelled and the user can be supplied the mains voltage (although not
stabilised) without interruption.
The auxiliary circuit is protected by fuses.
The logic control, performed on the true rms voltage, is based on a 2-way microprocessor. By using this device,
monitoring the system and setting the stabiliser parameters via a PC connection are made possible.
MAXIMAXI
AVRAVR MAXI AVR
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 23
FREQUENCY 47/65Hz
ADMITTED LOAD VARIATION from 0 up to 100%
ADMITTED LOAD UNBALANCE up to 100%
MAINS WAVEFORM DISTORTION INCREMENT < 0.2%
COOLING Natural Air (aided over 40°C)
AMBIENT TEMPERATURE -15/+45 °C
STORAGE TEMPERATURE -25/+60°C
RELATIVE HUMIDITY 95%
ADMITTED OVERLOAD 200% 2min
COLOUR RAL 7035
PROTECTION IP 21
INSTALLATION Indoor
Any other variation range not mentioned in the table above can be dealt with on request.
±15% ±20% ±25% ±30% -25/+15% -35/+15% -45/+15%
125 100 75 50 100 75 50
160 125 100 75 125 100 75
200 160 125 100 160 125 100
250 200 160 125 200 160 125
315 250 200 160 250 200 160
400 315 250 200 315 250 200
500 400 315 250 400 315 250
630 500 400 315 500 400 315
800 630 500 400 630 500 400
1000 800 630 500 800 630 500
1250 1000 800 630 1000 800 630
1600 1250 1000 800 1250 1000 800
2000 1600 1250 1000 1600 1250 1000
2500 2000 1600 1250 2000 1600 1250
3150 2500 2000 1600 2500 2000 1600
4000 3150 2500 2000 3150 2500 2000
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±15% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-15 125 400 212 400 181 >98 20 40 650
MAXI AVR 666-15 160 400 272 400 231 >98 20 40 670
MAXI AVR 668-15 200 400 340 400 289 >98 20 41 900
MAXI AVR 670-15 250 400 425 400 361 >98 20 41 950
MAXI AVR 672-15 315 400 535 400 455 >98 20 41 1050
MAXI AVR 674-15 400 400 680 400 578 >98 20 51 1300
MAXI AVR 676-15 500 400 850 400 723 >98 20 51 1400
MAXI AVR 678-15 630 400 1071 400 910 >98 20 42 1700
MAXI AVR 680-15 800 400 1361 400 1156 >98 24 52 2400
MAXI AVR 682-15 1000 400 1700 400 1445 >98 24 52 2600
MAXI AVR 684-15 1250 400 2125 400 1806 >98 24 44 4400
MAXI AVR 686-15 1600 400 2720 400 2312 >98 24 44 4800
MAXI AVR 688-15 2000 400 3400 400 2890 >98 24 44 5200
MAXI AVR 690-15 2500 400 4250 400 3613 >98 24 49 6900
MAXI AVR 692-15 3150 400 5355 400 4552 >98 24 49 7300
MAXI AVR 694-15 4000 400 6800 400 5780 >98 24 60 9000
Maxi AVR Standard FeaturesMaxi AVR Standard Features
Rating in Relation to the Input Variation PercentageRating in Relation to the Input Variation Percentage
Maxi AVR ±15% Digital ThreeMaxi AVR ±15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MAXIMAXI
AVRAVR MAXI AVR
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 24
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±20% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-20 100 400 180 400 144 >98 15 40 650
MAXI AVR 666-20 125 400 226 400 181 >98 15 40 670
MAXI AVR 668-20 160 400 289 400 231 >98 15 41 900
MAXI AVR 670-20 200 400 361 400 289 >98 15 41 950
MAXI AVR 672-20 250 400 452 400 361 >98 15 41 1050
MAXI AVR 674-20 315 400 569 400 455 >98 15 51 1300
MAXI AVR 676-20 400 400 722 400 578 >98 15 51 1400
MAXI AVR 678-20 500 400 903 400 723 >98 15 42 2000
MAXI AVR 680-20 630 400 1138 400 910 >98 18 52 2400
MAXI AVR 682-20 800 400 1445 400 1156 >98 18 52 2600
MAXI AVR 684-20 1000 400 1806 400 1445 >98 18 44 4400
MAXI AVR 686-20 1250 400 2258 400 1806 >98 18 44 4800
MAXI AVR 688-20 1600 400 2890 400 2312 >98 18 44 5200
MAXI AVR 690-20 2000 400 3613 400 2890 >98 18 49 6900
MAXI AVR 692-20 2500 400 4516 400 3613 >98 18 49 7300
MAXI AVR 694-20 3150 400 5690 400 4552 >98 18 60 9000
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±25% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-25 75 400 144 400 108 >98 12 40 650
MAXI AVR 666-25 100 400 193 400 144 >98 12 40 670
MAXI AVR 668-25 125 400 241 400 181 >98 12 41 900
MAXI AVR 670-25 160 400 308 400 231 >98 12 41 950
MAXI AVR 672-25 200 400 385 400 289 >98 12 41 1050
MAXI AVR 674-25 250 400 482 400 361 >98 12 51 1300
MAXI AVR 676-25 315 400 607 400 455 >98 12 51 1400
MAXI AVR 678-25 400 400 770 400 578 >98 12 42 1700
MAXI AVR 680-25 500 400 963 400 723 >98 15 52 2400
MAXI AVR 682-25 630 400 1214 400 910 >98 15 52 2600
MAXI AVR 684-25 800 400 1541 400 1156 >98 15 44 4400
MAXI AVR 686-25 1000 400 1927 400 1445 >98 15 44 4800
MAXI AVR 688-25 1250 400 2408 400 1806 >98 15 44 5200
MAXI AVR 690-25 1600 400 3083 400 2312 >98 15 49 6900
MAXI AVR 692-25 2000 400 3853 400 2890 >98 15 49 7300
MAXI AVR 694-25 2500 400 4817 400 3613 >98 15 60 9000
Maxi AVR ±20% Digital ThreeMaxi AVR ±20% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Maxi AVR ±25% Digital ThreeMaxi AVR ±25% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MAXIMAXI
AVRAVR MAXI AVR
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 25
TYPE RATED POWER [kVA]
INPUT VOLTAGE
±30% [V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-30 50 400 103 400 72 >98 10 40 650
MAXI AVR 666-30 75 400 155 400 108 >98 10 40 670
MAXI AVR 668-30 100 400 206 400 144 >98 10 41 900
MAXI AVR 670-30 125 400 258 400 181 >98 10 41 950
MAXI AVR 672-30 160 400 330 400 231 >98 10 41 1050
MAXI AVR 674-30 200 400 413 400 289 >98 10 51 1300
MAXI AVR 676-30 250 400 516 400 361 >98 10 51 1400
MAXI AVR 678-30 315 400 650 400 455 >98 10 42 1700
MAXI AVR 680-30 400 400 826 400 578 >98 12 52 2400
MAXI AVR 682-30 500 400 1032 400 723 >98 12 52 2600
MAXI AVR 684-30 630 400 1300 400 910 >98 12 44 4400
MAXI AVR 686-30 800 400 1651 400 1156 >98 12 44 4800
MAXI AVR 688-30 1000 400 2064 400 1445 >98 12 44 5200
MAXI AVR 690-30 1250 400 2580 400 1806 >98 12 49 6900
MAXI AVR 692-30 1600 400 3303 400 2312 >98 12 49 7300
MAXI AVR 694-30 2000 400 4128 400 2892 >98 12 60 9000
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-25%
[V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-25/15 100 400 192 400 144 >97 15 40 715
MAXI AVR 666-25/15 125 400 241 400 180 >97 15 40 740
MAXI AVR 668-25/15 160 400 308 400 231 >97 15 41 1100
MAXI AVR 670-25/15 200 400 385 400 289 >97 15 41 1210
MAXI AVR 672-25/15 250 400 481 400 361 >97 15 41 1320
MAXI AVR 674-25/15 315 400 607 400 455 >97 15 51 1650
MAXI AVR 676-25/15 400 400 770 400 578 >97 15 51 1760
MAXI AVR 678-25/15 500 400 963 400 722 >97 15 42 1900
MAXI AVR 680-25/15 630 400 1213 400 910 >97 18 52 2780
MAXI AVR 682-25/15 800 400 1541 400 1156 >97 18 52 3020
MAXI AVR 684-25/15 1000 400 1926 400 1445 >97 18 44 4840
MAXI AVR 686-25/15 1250 400 2408 400 1806 >97 18 44 5280
MAXI AVR 688-25/15 1600 400 3082 400 2312 >97 18 44 5720
MAXI AVR 690-25/15 2000 400 3853 400 2890 >97 18 49 7590
MAXI AVR 692-25/15 2500 400 4817 400 3612 >97 18 49 8030
MAXI AVR 694-25/15 3150 400 6069 400 4552 >97 18 60 9000
Maxi AVR ±30% Digital ThreeMaxi AVR ±30% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
Maxi AVR Maxi AVR --25%/+15% Digital Three25%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MAXIMAXI
AVRAVR MAXI AVR
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 26
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-35%
[V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-35/15 75 400 166 400 108 >97 12 40 715
MAXI AVR 666-35/15 100 400 222 400 144 >97 12 40 740
MAXI AVR 668-35/15 125 400 278 400 180 >97 12 41 1100
MAXI AVR 670-35/15 160 400 356 400 231 >97 12 41 1210
MAXI AVR 672-35/15 200 400 444 400 289 >97 12 41 1320
MAXI AVR 674-35/15 250 400 556 400 361 >97 12 51 1650
MAXI AVR 676-35/15 315 400 700 400 455 >97 12 51 1760
MAXI AVR 678-35/15 400 400 889 400 578 >97 12 42 1900
MAXI AVR 680-35/15 500 400 1111 400 722 >97 15 52 2780
MAXI AVR 682-35/15 630 400 1400 400 910 >97 15 52 3020
MAXI AVR 684-35/15 800 400 1778 400 1156 >97 15 44 4840
MAXI AVR 686-35/15 1000 400 2223 400 1445 >97 15 44 5280
MAXI AVR 688-35/15 1250 400 2779 400 1806 >97 15 44 5720
MAXI AVR 690-35/15 1600 400 3557 400 2312 >97 15 49 7590
MAXI AVR 692-35/15 2000 400 4446 400 2890 >97 15 49 8030
MAXI AVR 694-35/15 2500 400 5558 400 3613 >97 15 60 9000
The technical data in the above tables are subject to change by the Company either for internal reasons or because of a specific request from the Customer
Input output voltage 50Hz: 380/415V - Input output voltage 60Hz: 460/480V
Maxi AVR Maxi AVR ––35%/+15% Digital Three35%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
TYPE RATED POWER [kVA]
INPUT VOLTAGE
+15%
-45%
[V]
MAX INPUT
CURRENT [A]
OUTPUT VOLTAGE ±0.5%
[V]
RATED OUTPUT
CURRENT [A]
EFFICIENCY [%]
RESPONSE TIME
[ms/V] CABINET
WEIGHT [kg]
MAXI AVR 664-45/15 50 400 131 400 72 >97 10 40 780
MAXI AVR 666-45/15 75 400 197 400 108 >97 10 40 805
MAXI AVR 668-45/15 100 400 263 400 144 >97 10 41 1200
MAXI AVR 670-45/15 125 400 328 400 180 >97 10 41 1320
MAXI AVR 672-45/15 160 400 420 400 231 >97 10 41 1440
MAXI AVR 674-45/15 200 400 525 400 289 >97 10 51 1800
MAXI AVR 676-45/15 250 400 656 400 361 >97 10 51 1920
MAXI AVR 678-45/15 315 400 827 400 455 >97 10 42 2100
MAXI AVR 680-45/15 400 400 1051 400 578 >97 12 52 3060
MAXI AVR 682-45/15 500 400 1313 400 722 >97 12 52 3340
MAXI AVR 684-45/15 630 400 1655
400 910 >97 12 44 5280
MAXI AVR 686-45/15 800 400 2102 400 1156 >97 12 44 5760
MAXI AVR 688-45/15 1000 400 2627 400 1445 >97 12 44 6240
MAXI AVR 690-45/15 1250 400 3284 400 1806 >97 15 49 8280
MAXI AVR 692-45/15 1600 400 4204 400 2312 >97 15 49 8760
MAXI AVR 694-45/15 2000 400 5254 400 2890 >97 15 60 9000
Maxi AVR Maxi AVR ––45%/+15% Digital Three45%/+15% Digital Three--Phase Voltage StabilisersPhase Voltage Stabilisers
MAXIMAXI
AVRAVR MAXI AVR
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 27
CABINETS DIMENSIONS (w x d x h) mm
12 275X425X260
13 300X565X280
22 360x520x1000
23 405x670x1150
24 605x850x1450
25 605x850x1650
26 1210x850x1650
40 600x800x2000
41 1200x800x2000
42 2400x800x2000
44 3600x1000x2100
49 3600x1400x2200
50 1815x850x1650
51 1800x800x2000
52 2400x1000x2100
Any dimensions other than the ones in the above table can be dealt with on request.
DIMENSIONS
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DIAGRAMS
M
SURGE
ARRESTER
INPUT
NETWORK ANALYSER
V
Wh
WA
cos
SOFT START
CIRCUIT
OUTPUT NETWORK
ANALYSER
MICROPROCESSOR
DRIVE CARD
BY-PASS LINE
RS232
BUCK/BOOST
TRANSFORMER VOLTAGE
REGULATOR
CURRENT
TRANSFORMERWh cos
V A W
INPUT
OUTPUT
ISOLATING
TRANSFORMER
INPUT
INTERRUPTING
DEVICE
CURRENT
TRANSFORMER
OUTPUT
INTERRUPTING
DEVICE
EMI / RFI
FILTER
RED: POWER LINE
BLUE: ACCESSORIES ON REQUEST
1-PH. VOLTAGE
STABILISER (TYPE 'MINIAVR')
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 29
M
SURGE
ARRESTER
INPUT
NETWORK ANALYSER
V
Wh
WA
cos
SOFT START
CIRCUIT
OUTPUT NETWORK
ANALYSER
MICROPROCESSOR
DRIVE CARD
BY-PASS LINE BUCK/BOOST
TRANSFORMER VOLTAGE
REGULATOR
CURRENT
TRANSFORMERWh cos
V A W
INPUT
OUTPUT
ISOLATING
TRANSFORMER
INPUT
INTERRUPTING
DEVICE
CURRENT
TRANSFORMER
OUTPUT
INTERRUPTING
DEVICE
EMI / RFI
FILTER
RED: POWER LINE
BLUE: ACCESSORIES ON REQUEST
RS232
3-PH. VOLTAGE
STABILISER
(TYPE 'MIDIAVR A')
DIAGRAMS
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 30
M
SURGE
ARRESTER
INPUT
NETWORK ANALYSER
V
Wh
WA
cos
SOFT START
CIRCUIT
OUTPUT NETWORK
ANALYSER
MICROPROCESSOR
DRIVE CARDS
BY-PASS LINE BUCK/BOOST
TRANSFORMER
VOLTAGE
REGULATORS
CURRENT
TRANSFORMERSWh cos
V A W
INPUT
OUTPUT
ISOLATING
TRANSFORMER
INPUT
INTERRUPTING
DEVICE
CURRENT
TRANSFORMERS
OUTPUT
INTERRUPTING
DEVICE
EMI / RFI
FILTER
RED: POWER LINE
BLUE: ACCESSORIES ON REQUEST
M M
RS232
3-PH. VOLTAGE
STABILISER
(TYPE 'MIDIAVR Y')
DIAGRAMS
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 31
M
SURGE
ARRESTER
INPUT
NETWORK ANALYSERV
Wh
WA
cos
SOFT START
CIRCUIT
OUTPUT NETWORK
ANALYSER
2-WAYS MICROPROCESSOR
DRIVE CARD WITH ALARMS
BY-PASS LINE
RS232
BUCK/BOOST
TRANSFORMER VOLTAGE
REGULATORS
CURRENT
TRANSFORMERSWh cos
V A W
INPUT
OUTPUT
ISOLATING
TRANSFORMER
INPUT
INTERRUPTING
DEVICE
CURRENT
TRANSFORMERS
OUTPUT
INTERRUPTING
DEVICE
EMI / RFI
FILTER
RED: POWER LINE
BLUE: ACCESSORIES ON REQUEST
M M
3-PH. VOLTAGE
STABILISER
(TYPE 'MAXIAVR')
DIAGRAMS
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 32
The characteristics so far described are typical of the standard machine. Accessories performing other tasks can be
supplied on request. Combinations of one or more of the following accessories are usually installed in an additional
modular enclosure.
optionaloptional
STABILISERMAINS USER
MAINS STABILISER USER
MAINS STABILISER USER
MAINS STABILISER USER
ByBy--Pass SwitchPass Switch
Useful for working on the voltage stabiliser without switching off the power supply to the loads. For the operators' safety,
the by-pass operation should be manual. The by-pass device consists of three interlocked switches with three positions:
by-pass OFF/stabiliser ON
by-pass OFF/stabiliser OFF
by-pass ON/stabiliser OFF
Input Isolation TransformerInput Isolation Transformer
It provides for galvanic separation between the stabiliser (and its load) and the mains.
It also protects from possible overvoltages. It allows the connection with system without neutral cable, giving a fixed and stable star point for the system.
Interrupting DevicesInterrupting Devices
Fused disconnections or circuit breakers with thermal and magnetic release can be supplied whenever it is necessary to
isolate the input line, the output one or both.
ACCESSORIES
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 33
Surge arresters (lightning arresters) and overvoltage suppressers can be provided to protect from overvoltage peaks
of atmospheric or operational origin by discharging them to ground. The installation depends on the system
configuration. For example, in case of high ratings the suggested sequence would be: spark-gap arresters followed by
an isolating device (ideally an isolating transformer) and varistor-based arresters on its output.
SPD
F2
SPD
F2
F1
STABILISER USERMAINS
The „Soft Start‟ circuit is a protection with a double purpose:
To delay the connection to the load each time the stabiliser switches on so that the users can undergo a smooth
start-up with an already stabilised voltage.
To protect the load from surges, sags and overload by disconnecting the load from the stabiliser.
STABILISER
TIMING CIRCUIT
MAINS USER
DELAYED
RESETTING RELAY
WITH 'LOAD-ON' SIGNAL
On request the stabiliser can be designed for outdoor installation and be housed in stainless steel or glass-fibre
cabinets.
Surge Arresters (SPD)Surge Arresters (SPD)
“Soft Start” Circuit“Soft Start” Circuit
Protection Degree (IP)Protection Degree (IP)
High protection degree (up to IP54) can be obtain by increasing the dimensions or by including heat exchangers and air
conditioning units.
Additional Instrumentation and Special CostructionAdditional Instrumentation and Special Costruction
For special requirements, the instrumentation can be expanded according to request, with provision for computerised
remote signalling. Due to our flexibility, it is possible to customise the design according to specific requests
Outdoor ConstructionsOutdoor Constructions
EMI FiltersEMI Filters
Protection against radio-frequencies disturbances (kHZ-MHZ range)
ACCESSORIES
Italfarad S.p.A. Via IV Novembre n.1 Minerbio Bologna Italy Tel.+39 051 6618311 Fax +39 051 6605594 E-mail: [email protected] Web:www.italfarad.com 34 Edizione 07-2009
ITALFARAD S.p.A.
Via IV novembre n.1
40061 Minerbio Bo Italy
Tel. +39 051 6618311
Fax +39 051 6605594
E-mail: [email protected]
Web: www.italfarad.com