High Pot Tester

 

Set HVG 40

 

Description

The DC HI-Pot tester is highly reliable, accurate and rugged tool to check the quality of Di-electric strength of the insulation in cable, capacitors, transformers and many electrical components. This tester also called as Di-electric breakdown tester.

The DC HI-Pot tester is extremely important to identify the deterioration in the insulation as early as possible to take corrective measures. 

The DC HI-Pot tester is an important part and parcel of the electrical safety tests mandated by standards organization world-wide.

More than 80% of faults in electrical and electronic systems are due to weak insulation caused by environmental factors such as dirt, grease, temperature stress, humidity, etc that affect the dielectric strength of the insulation material.

 

Application

High voltage DC test set is used to check Di-electric strength of Cable, Transformers, Switchgear & Relays, Motors, Coils & Chokes, Generators, Capacitors, Wires & Cables, and other Electrical apparatus manufacturers or in power transmission and distribution network.

 

Features

 

Fully protected operation with safety interlocks.

 

Easy to perform DC high voltage test.

 

Comprehensive safety operation

 

Continuously adjustable output voltage from 0 to 100%.

 

Selectable current ranges for precise leakage current readings.

 

Output over current tripping facility.

 

Full current delivering capacity on load.

 

Built in auto discharge in case of mains power failure or equipment switch off.

 

Timer provision to switch off the equipment automatically after the preset time setting.

 

Pre-location cable faults in decay or voltage transient mode with conjunction suitable pre-locator.

 

Emergency off switching facility in case of any emergency.

 

Rugged construction and easy to carry on site.

 

Working Principle

Connect the cable / device to HV test equipment with all safety precautions, especially reliable safety earth connection. Increase the output voltage gradually to avoid heavy in rush current to the cable / Device under test. Maintain the prescribed voltage for given period of time. The leakage current indication will give the dielectric strength of the insulation.

DC Test equipment is successfully used for pre-locating high resistance faults where surge / arc reflection methods fail to give results. This method is known as voltage coupler / Decay method.

 

Function

Test Di-electric strength of cables installations with DC high voltage. Same time DC high voltage test set are being used to pre-locate high resistance cable faults under Decay or Voltage transient mode with suitable pre-locator unit.

 

Specifications

 

Working Supply Voltage

230 V AC, + 10%, 50Hz, Single phase

 

Output Voltage

0 - 40 kV continuously variable from 0 - 100%

 

Output Current

10 mA manually selectable ranges

 

Indication

Analog meter / Digital LED display for output voltage (kV)
Analog meter / Digital LED display for output leakage current (mA) 
ON / OFF indication
Over Heat LED indication
Over current trip LED indication

 

Protection

Circuit backer in mains input
Variac Zero Inter Lock
Built in auto discharge
Over Current Trip 
Over Temperature Trip

 

Duty Cycle

5 min on / 10 min OFF

 

Timer Mode

Manually selectable as required

 

Mode of Operation

Manual

 

Output Voltage Control

Manually through Variac

 

Cooling

Air cooled

 

Operating Temperature

0oC to 55oC

 

Storage Temperature

- 5oC ~ 60oC

 

Dimension

525 (L) x 300 (W) x 470(H) mm+ Handle 50mm + Wheel 65mm

 

Weight

40 kg Approx

 

Standard Accessories

 

HV Output Cable 10 sq mm single core screen cable 5 meter length with heavy duty clamp.

 

Mains supply cord 3 meter length.

 

Yellow / Green 10 sq mm earthing cable 5 meter length

 

Standard Warranty - One Year

Other models available

High Voltage DC Test Set HVG 50, High Voltage DC Test Set HVG 70

 

Note: Other combinations & specifications to our esteemed customers.

 

 

 

 

 

Set HVG 70

 

Description

The High Voltage Test Set HVG 70 or Di-electric Hi-Pot tester is highly reliable, accurate and rugged tool to check the quality of dielectric strength of the insulation in power cable, capacitors, transformers and many electrical components. This tester also called as Dielectric breakdown tester.

The AC/DC Hi-Pot tester is extremely important to identify the deterioration in the insulation as early as possible to take corrective measures. 

The AC/DC Hi-Pot tester is an important part and parcel of the electrical safety tests mandated by standards organization world-wide. More than 80% of faults in electrical and electronic systems are due to weak insulation caused by environmental factors such as dirt, grease, temperature stress, humidity, etc that affect the dielectric strength of the insulation material.

Application

DC Tester: DC high voltage tester is used to check die-electric strength of power cable, DC high voltage capacitors many others DC components. 

AC Tester: AC high voltage tester is used to check insulation properties of Transformers, Switchgear & Relays, Motors, Coils & Chokes, Generators, Capacitors, and other electrical AC apparatus in power transmission and distribution network OR manufactures.

 

Features

 

Supplied with separate control and high voltage unit

 

Fully protected operation with safety interlocks

 

Easy to perform both AC / DC high voltage / High-pot test

 

Comprehensive safety operation

 

Continuously adjustable output voltage from 0 to 100%

 

Selectable current ranges for precise leakage current readings

 

Over current tripping facility

 

Timer provision to switch off the instrument automatically after the preset time setting

 

Pre-location cable faults in decay or voltage transient mode couple with suitable pre-locator

 

Emergency off switching facility in case of any emergency

 

Rugged construction and easy to carry on site

 

Working Principle

Connect the cable / device to HV test instrument with all safety precautions, especially reliable safety earth connection. Increase the output voltage gradually to avoid heavy in rush current to the cable / Device under test. Maintain the prescribed voltage for given period of time. The leakage current indication will give the dielectric strength of the insulation.

DC Test instrument are successfully used for pre-locating high resistance faults where surge / arc reflection methods fail to give results. This method is known as voltage coupler / Decay method.

 

Function

Test Dielectric strength of cables installations with AC / DC high voltage. Same time DC high voltage test set are being used to pre-locate high resistance cable faults under Decay or voltage transient mode with suitable pre-locator unit.

 

Specifications

Working Supply Voltage

230V AC +10% AC, 50 Hz, Single phase

 

Indication

Analog meter / Digital LED display for output voltage (kV)
Analog meter / Digital LED display for output leakage current (mA) 
ON / OFF indication, Over Heat LED indication, Over Current trip LED indication

 

Protection

Mains input circuit backer in input supply, 
Variac Zero Inter Lock, 
Over Current trip, 
Over Temperature trip

 

Duty Cycle

3 min ON / 10 min OFF

 

Timer Mode

Manually selectable as required

 

Mode of Operation

Manual

 

Output Voltage Control

Controlled manually through variac

 

Cooling

Air cooled

 

Operating Temperature