Stationary DC High voltage Test Set

Product Description :                                                                                               UP

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.

Model Photo :

  Stationary DC High voltage Test Set

Technical Details:


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.


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.


CAPACITY : Up to 50mA on HV side.

RATING : Continuous for testing and 15 minutes at full load


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

  2. Knob to control the tripping current in steps.


Moving coil / digital KV meter and milliamp meter will be provided to indicate output Voltage and leakage current.


The negative and positive terminals are brought out on suitable insulators. Positive or negative polarity can be supplied at Earth Potential on request.


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)


Silicon diodes with RC network are used for rectification in bridge or doubler or multiplier or half wave circuit.


Portable DC High Voltage Tester 

Product Description :                                                                                               UP

Portable DC High Voltage Test Set is used for testing the underground cable for knowing the condition of cable-leakage at High Voltage. The units are supplied with 5 meter long input lead and 5 meter long output lead with sockets & clips. The unit comes with digital meters for easy readability with a test terminal for zero error.

Special Features:

  • Available in 30, 60, 75 & 120 kV models

  • Easy to operate

  • Digital meters for easy readability.

  • High Voltage Surge protection 

  • Multiplier circuit for better life.

Model Photo :

  Portable DC High Voltage Tester

Technical Details:

Input : 220/230 Volts Single Phase 50Hz. Ac supply.

Output : 25-70 

KVKVA : 150-1500W

Cooling : Naturally Air Cooled. Output Voltage 

Control : Stepless Rating : Continuous for testing duty.

HT CABLE : The equipment is supplied with five meters long cooper braided H.T. cable with HT plug and socket. The braiding remains on earth potential.

LT CABLE : For input supply ten meters long 3 core cable is provided.

ZERO START INTERLOCKING : This is to ensure that the H.T. shall not actuate if the voltage control knob is not at zero position.

EARTH INTERLOCKING : If proper earth is not connected the HT shall not actuate.

AUTO DISCHARGING ARRANGEMENT : The equipment consists of automatic cable discharging arrangement.

SOCKET : H.T. plug and socket has been especially developed by us with automatic earthing arrangement

METERS : mA meter and Volt meter are provided on H.T. side. The meters are well protected against surges and spikes.

OVER VOLTAGE PROTECTION : H.T. Automatically trips in case of output voltage exceeds the preset level.

SURGES AND SPIKES PROTECTION : During the testing surges or spikes are often generated due to short circuit. The equipment is fully protected against these.

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