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Ring Main Unit (RMU)

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Digital Servo Voltage Stabilizer Specification

S NO
Specification
1
Make

COSMOSTAT

2
Technology
Servo controlled
3
Type
Three phase, Indoor, unbalanced,
4
Cooling
Oil / Air
5
Testing
As per BIS 9815: Part 1
6
Input voltage
200V-500V phase to phase as per requirement  
7
Output voltage
415V +/- 1% (Adjustable)  
8
Frequency
50 Hz
9
Rate of correction
8 V/-60 Vsec. phase to phase
10
Metering
Digital microprocessor based cards
11
Efficiency
Not less than 98 %
12
Wave form Distortion
Nil
13
Response time
Less than 10 mili second
14
Break down strength
2500 Ac for 2 minute
15
Insulation Resistance (IR)
More than 100 Mega ohms at 500V DC
16
Capacity
6 KVA to 1500 KVA

Protections:-
1
Over load/short circuit Protection
Optional (Price Quoted Separately)
High / low voltage cut off
Optional (Price Quoted Separately)
Single phase preventer
Optional (Price Quoted Separately)
By-pass arrangement
Optional (Price Quoted Separately)

As per BIS 9815:part1:1994 Technical Specifications:-
SL NO
Parameter
Observation
1
Winding
Pure electrolyte copper
2
Manufactured with Both dimmer state and transformer
Dimmerstate   3 nos, transformer  3 nos and servo motor 3 nos  each in unit 
3
Size of  stabilizer    L X B X H (in inches)
Declared  in advance at time quotation
4
Minimum size of dimmer state unit
Declared  in advance at time quotation
5
Oil capacity
Declared  in advance at time quotation

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Location: 216, New Lahore Colony Nr. SDM Court, Shastri Nagar, Geeta Colony, New Delhi, Delhi 110031, India

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