Stationary DC High voltage Test Set

Product Description :

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.Special Features:

  • Multiplier circuit for economy and better life.
  • Multiple interlocks for human safety.
  • Optional computer interface facility.
  • Available unto 1000 kV and 1 Amps.

Technical Details:

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

CONTROL :

  1. Knob to control the output voltage from zero to maximum or push button ncase of motorized model.
  2. 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.