Golden Electronic Controls

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Products

Three Phase Oil Cooled Servo Stabilizers

Our Other Products:

Three Phase Oil Cooled Servo Stabilizers

Three Phase Air Cooled Servo Stabilizers

Single Phase Air Cooled Servo Stabilizers

Golden Servo Online UPS

Isolation Transformers

Golden Make Variac

Salient Features

High efficiency
Fast response
Wide input voltage range
Audiable alarm for trip conditions
99.99% failure proof control circuit
Built in digital volt/frequency meter
No over under, shoots and hunting
Built in bypass switch upto 100 Kva
Sensing circuit is isolated from the mains
Less active component avoids failure ratings
Special electronic circuit to operate on gensets
No effect of power factor and frequency variations
Single PCB for three phase sensing and correction
Automactic precision trip range settings at site without preset adjustment
Voltage speed high torque dc servo motor proportionally controls corrections
Rugged and smooth as motor drive control through optoisolator circuit which is highly reliable

High Reliability

High reliability due to digital and controlling using micro controller
All components sourcedfrom reputed manufacturers, confirm to IS/BS/VDU standards
All raw material inspection as per internal components manual
Individual assemblies tested on full load at 55 deg c in oven for 48 hours to minimize failure
Final equipment tested for accelerated life test to identify and replace any weak links.

Protections

Panel Control

VAF / VF 3 Phase Model Start, Select, Stop / Reset

Panel Indications

VAF 3 PH model : Input On, Output On, Input High, Input Low, Phase rotation fault, over load, cutoff
VF 3 PH model : Input On, Output On, Input High, Input Low, Phase rotation fault, cutoff

PANEL METERS

VAF 3 PH MODEL		VF 3 PH MODEL
Output Volts - R , Y, B, RY, YB & BR		Output Volts - R , Y, B, RY, YB & BR
Input Volts - R , Y, B, RY, YB & BR		Input Volts - R , Y, B, RY, YB & BR
Output Load Current : R, Y & B		Output Set Voltage
Output Set Voltage		Sensitivity Adjustable From 2 - 9 Volts
Sensitivity Adjustable From 2 - 9 Volts		Frequency
Over Load factory set as per unit
Capacity frequency

Product Specification

Three Phase Oil Cooled	3,6,9,12,15,20,25,30,40,50,60 & 75 kva 100,125,150,200,250,300,400,500,750 & 1000 kva
Input voltage range	170-270 single phase 295-465 volts three phase 195-270 single phase 340-465 volts three phase 205-270 single phase 360-465 volts three phase
Special range	As per customer requirements
Output Voltage	380/400/415 V AC in three phase
System	Unbalanced / balanced type
Connection	Star /Delta or Star / Star
Output voltage regulation	(+/-) 1% from no load to full load
Servo Motor drive model-A	AC servo synchronous motor
Correction Speed	35/V/sec-1 ph, 60 V/sec-3 ph
Response Time	Above 60 milli.sec.
Servo motor model-B	D.C. servo motor
Correction speed	Upto 105 V/sec
Response time	10 milli sec.
Operating frequency	47 to 53 Hz
Output waveform	True reproduction of input
Insulation	Class "B"
Short Circuit percentage and period	300% for 250 milli sec.
Overload Capacity	120% for 1 minute
Effect of load P.F. on OP Volts	Nil
Waveform distortion	Nil
Duty Cycle	100% continuous
Ambient	Zero to 45°cmax. Relative humidity upto 90%
Type of cooling	Natural air cooled upto 75 kva, Natural oil cooled 3 to 1000 kva
System Construction	As per IS:9815
Enclosure	Powder Coated
Efficiency	98% (electrical consumption saved)
Environment	Designed for indoor tropical use
Mounting	On Wheels
Earthing	Earthing terminals provided

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Dimension

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