Primary Current Injection Test Set

• Step Down Transformer:  A double wound transformer is used for supplying high current at low voltage for testing
• Current Control: A step-less Auto Transformer is used for controlling output current from Zero to Maximum
• Input Voltage Ranges: 230/415 Volts single/two/three phase 50Hz. AC supply
• Output Voltage Ranges: As per requirement
• Output Current: Up to 25000 Amps
• Capacity:  Up to 500 KVA
• Duty:  15 Minutes ON-30 Minutes OFF in case of Primary Injection test set and continuous in case of Loading Transformer
• Metering:  Multi range Ampere meter of class 1.5 with CT of class 0.5 are provided on secondary side to indicate output current
• Protection:  ON-OFF Switch with fuse is provided to protect the unit against short circuit, push button to actual and cut of output
• Housing:   Each unit is housed in a MS sheet body, supported with angle iron frame. The oil-cooled models are housed in suitable MS tank and the control panel is on the tank or as per requiems
• Optional:    (a) Voltmeter  (b) Timer as per requirement  (c) Rubber cable (c) Zero start interlocking with by pass switch
• Termination:  The output is brought out on suitable Bus Bar/Terminals.

Secondary Current Injection Test Set
These sets are designed for working on 220/ 230V single phase 50 Hz AC supply and complete with power ON-OFF indicator, circuit ON indicator. Each circuit shall have push button actuated, relay/ contractor to control the output of the circuit. All these circuits and components shall be housed in rigid PVC suitcase with carrying handle or wheels in case of higher capacity.

Current Circuit:
To Inject current of desired value in the relay/ contactor. This circuit consists of loading transformer, selector switch, variable control, fine adjustment. Depending upon specific requirement, percentage selector switch can also be provided to inject current at various multiples. The current injected is indicated by Ampere Meter. For large range the ammeter has a multiplier or current transformer.

Voltage Control:
Circuit supplies voltage independently as per requirement. The continuously variable voltage or fixed tap voltage can be provided as desired. AC, DC or both voltages can be provided along with corresponding metering, indications, switches etc.

Phase Circuit:
This is incorporated only when special type of relays are to be tested.The phase angle between voltage & current is developed to obtain current operational parameters of the relay.

Time Circuit:
Digital Timers with freezing facility is provided for recording the operation/ tripping time of relays. Each circuit is independent & push button operated, relay/ contractor to control the output of the circuit.

Primary Current Injection Test Set

• Compact in nature
• It is available in portable trolley type/stationery type model Amps
• Optional digital/analogue timer
• Main Transformer up to 25,000 Amps Naturally air-cooled type
   

Secondary Current Injection Test Set

• Compact Size
• Built in safety arrangements in case of short circuit and over loading
• Easy to operate
• Efficient after sales service