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GYRO GROUP

PRODUCTS

Instruments Transformers

Current Transformers

Potential Transformers

Manufacturing Range of

Instrument Transformers

-	Indoor, Low Tension Current
	& Potential Transformers
	upto voltage class 660v.

-	Indoor, Medium Voltage class
	Current & Potential Transformers
	From 3.3KV. to 33KV.

-	Outdoor, Oil Cooled, medium
	Voltage Class [ 11KV, 22KV,
	33KV ] and High Voltage Class
	[ 66KV, 132KV] Current &
	Potential Transformers.

Line Traps

Testing Equipments

	-	Semi Automatic Meter Test
		Bench
	-	Single Phase Meter Test
		Bench
	-	Primary Injection Test Set
	-	Ohmmeter
	-	Relay Testing Equipment
	-	Phantom Load Set

Other Products

Semi Automatic Meter Test Bench

The calibration and certification of electricity meters are important functions, which are generally carried out by the electricity supply companies, electricity boards and energy meter manufacturers.

Due to the semiautomatic nature of the test, it is economical and capital investment is less and more suitable for Indian Conditions.

The test bench is easy to operate and as a precise result is obtained at the same time, cost for testing is reduced.

Test bench can be used to test Ferrari Meters and electronic KWH Meters.

Single Phase Meter Test Bench

Gyro's single phase kWh Meter Test Benches developed by GYRO Laboratories provide a high degree of operational convenience to carry out calibration checks or performance tests of electricity meters as per Indian Standard Specification, using a rotating sub-standard, reference standard or wattmeter.

These test benches are designed to operate on 3 phase 400/440 V-50 Hz power supply and have the capacity to accommodate and provide current for simultaneous testing of ten meters with a rating upto 8 amps maximum. The test voltage can be adjusted to any value upto 300 volts. The power factor can also be varied from unity and go degree lag or lead.

Primary Injection Test Set

Features:-
Gyro�s Primary Injection Test Set is a versatile compact apparatus designed to give standard output current upto 1000 Amps from an input of 230 Volts AC. Test Sets to suit any other input voltage or with higher output can be catered for by order. This wide range of variation in output is obtained with smooth regulation and least wave form distortion. By using the Primary Injection Test Set, functional checks involving high currents can be carried out at low cost and with inherent safety requiring minimum precautions.

Application:-
It has wide field of applications in testing supply net work, high current circuits and phantom loading.

Testing by primary injection technique offers the unique advantage of complete system check-out in a supply network for feeder fault, C.T. connections, protective relay function etc. and testing of low impedence, high current circuits, using the test set as a phantom loading unit.