DC HIGH VOLTAGE TEST SET
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:

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 n case 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.

 

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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