SERVO CONTROLLED VOLTAGE STABILIZERS ARE AVAILABLE IN FOUR MODELS
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PS analog meter
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DPM digital meter
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DPS digital control
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DCM DC motor control for high speed of correction
CAPACITIES :
1) 0.5 KVA to 40 KVA I PH
2) 1.5 KVA to 200 KVA 3 PH
SPECIFICATIONS :
Input Voltage Range
300 V – 460 V AC 50 Hz 3 PH
Other Input Ranges
245 V- 460 V AC 3Ph
340 V- 460 V AC 3Ph
360 V- 460 V AC 3Ph
other ranges as per customer requirement
Output Voltage
380 V / 400 V/ 415 V AC 3Ph 50 Hz
System
Unbalanced 4 Wire : R Y B N
Connections
Star
Operating Frequency
47 Hz to 53 Hz
Output Voltage Adjustable
380 V to 415 V AC in 3Ph
220 V to 240 V AC in 1Ph
Output Voltage Regulation
± 1%
Over Load Capacity
120%
Correction Rate
15 V / 20 V / 35 V / Sec-1Ph
25 V / 35 V / 60 V / Sec-3Ph
110V/Sec for D.C. Motor controlled
Waveform Distortion
Nil
Output Waveform
True Reproduction of Input
Insulation
Class 'B'
Short CKT Period & percentage
300 % for 250 m.sec.
Normal Operating Temperature
0ºC to 45ºC
Climatic Conditions
90 % RH.Max.Non-Condensing at 35º C
Mode of System
Fully Automatic / Manual
System Construction
AS PER IS : 9815 of 1994
STANDARD PROTECTIONS
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Low voltage protection
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High Voltage protection
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Overload Protected with MCB / MCCB
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Single Phasing Preventer
PANEL INDICATIONS
Input - ON
Output - ON
Input - Low
Input - High
Output - Cut-off
PANEL METERS
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Volt Meter With Selector Switch to read Input / Output Voltages, phase to phase and phase to neutral.
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Ammeter With Selector Switch (From 15 KVA 3Ph onwards )
OPTIONAL ACCESSORIES IN 3 Ph SYSTEM
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INPUT UNDER / OVER VOLTAGE TRIP
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OUTPUT UNDER / OVER VOLTAGE ALARM
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DIGITAL VOLTMETER / AMMETER
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FREQUENCY METER (Digital / Analog)
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FREQUENCY TRIP HIGH / LOW ADJUSTABLE (With setting thumb Wheel switch)
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MCB/MCCB FOR OUTPUT
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Dimmer Protection Arrangement
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Phase Reversal Protection
SAILENT FEATURES
Quick Response
Quickest response time 10 ms.(half a cycle)
High Overload capacity
Higher overload capabilities for high starting and regenerative currents repeated frequency in CNC Machines.
Fast Correction
Fastest rate of correction up to 70 V/sec.
No Hunting, No Oscillations,
No Noise Generation
Machine – Wound Variable Auto Transformer, with special Carbon Brush to minimize carbon deposit and for smooth commutation.
ENERGY SAVINGS
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Better efficiency of 98% achieved by use of prime grade Lamination.
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Electrolytic copper wires of 99.99% purity.
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Special designed transformers to minimize losses.
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Special sensing circuit to ensure constant Output Voltage even with distorted input from D.G. set. Conforms to stringent Defense specifications. Tropicalised design
