SERVO CONTROLLED VOLTAGE
STABILIZERS ARE AVAILABLE IN FOUR MODELS
•
PS analog meter
•
DPM digital meter
•
DPS digital control
•
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
•
Low voltage protection
•
High Voltage protection
•
Overload Protected with
MCB / MCCB
•
Single Phasing
Preventer
PANEL INDICATIONS
Input - ON
Output - ON
Input - Low
Input - High
Output - Cut-off
PANEL METERS
•
Volt Meter With Selector Switch to read
Input / Output Voltages, phase to phase and phase to neutral.
•
Ammeter With Selector Switch (From 15
KVA 3Ph onwards )
OPTIONAL ACCESSORIES IN 3 Ph SYSTEM
•
INPUT UNDER / OVER VOLTAGE TRIP
•
OUTPUT UNDER / OVER VOLTAGE ALARM
•
DIGITAL VOLTMETER / AMMETER
•
FREQUENCY METER (Digital / Analog)
•
FREQUENCY TRIP HIGH / LOW ADJUSTABLE
(With setting thumb Wheel switch)
•
MCB/MCCB FOR OUTPUT
•
Dimmer Protection Arrangement
•
Phase Reversal Protection
SALIENT 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
•
Better efficiency of 98% achieved by
use of prime grade Lamination.
•
Electrolytic copper wires of 99.99%
purity.
•
Special designed transformers to
minimize losses.
•
Special sensing circuit to
ensure constant Output Voltage even with distorted input from
D.G. set. Conforms to stringent Defense specifications.
Tropicalised design
