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.

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