This equipment is used for testing the underground cable, large Generator, Motor Transformer capacitor etc as per IS specification. The unit comes equipped with digital meters, motorized controls, one/two way computer interface, Emergency shut down and Optimum operator safety features.
- Multiplier circuit for economy and better life.
- Multiple interlocks for human safety.
- Optional computer interface facility.
- Available unto 1000 kV and 1 Amps.
Transformer: A double wound step up transformer is used for boosting the voltage. The transformer is made of super enameled wire, CRGO core and polyster film/paper for insulation.
Voltage Control: A step less auto-transformer is used for controlling the output from zero to maximum. The auto-transformer has built in arrangement for zero start interlocking.
Input Voltage: 230 or 400 volts single phase 50 Hz AC supply.
Output Voltage: Up to 300 KV
Capacity: Up to 50mA on HV side.
Rating: Continuous for testing and 15 minutes at full load
- Knob to control the output voltage from zero to maximum or push button ncase of motorized model.
- Knob to control the tripping current in steps.
Metering: Moving coil / digital KV meter and milliamp meter will be provided to indicate output Voltage and leakage current.
Terminating: The negative and positive terminals are brought out on suitable insulators. Positive or negative polarity can be supplied at Earth Potential on request.
Protection: The unit consists of fast acting DC relay which actuates instantaneously if the testing current goes beyond the pre-set level. b) The HV will not actuate if variac is not at zero position (To protect the transformer against transients on HV side & to protect the operator)
Rectifier: Silicon diodes with RC network are used for rectification in bridge or doubler or multiplier or half wave circuit.