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HZJY-20K Portable 20kV High Voltage Insulation Resistance Tester

Product Description

With the rapid development of China's power industry, electrical preventive experiments are an important part of ensuring the safe operation and maintenance of power systems. Insulation diagnosis is an important means to detect insulation or failure of electrical equipment. At present, electrical equipment (such as transformers, generators, etc.) is developing toward a trend of increasing capacity, increasing voltage, diversifying structures, and sealing. This requires the insulation resistance tester to have large capacity, strong anti-interference ability, and easy to carry. To this end, our company specially designed and developed the instrument for the testing of electrical insulation resistance characteristics of large high-voltage transformers, electrical appliances, remote power cables or buried cables under high-voltage substations, power plants and other strong interference sites.

This instrument combines the advantages of analog circuit, digital circuit and mechanical operation, and has achieved domestic leading position in output voltage, output current, measurement range, measurement accuracy and anti-interference ability.

Technical Indicators

1,Test voltage level：

2,Test voltage accuracy：±(5%＋10V)

3,Short circuit current：typical value10mA

4,Range and precision

Note:

1. The 1MΩ range calibration voltage is 0.5kV, and the GΩ range calibration voltage is 2.5kV.

2. Test voltage range to ensure the accuracy of resistance measurement: 20% or more of the voltage range nominal value.

3. When the test voltage is higher than 8kV, in order to accurately measure the resistance higher than 20GΩ, the high-voltage electrode conductor exposed to the air should be shielded to avoid the influence of air ionization.

4. The 2000GΩ range is the reference range and is used in dry environments where the relative humidity is less than 70%.

5. Resistance to electric field interference: 2mA (50/60Hz).

6. Timekeeping, alarm function: stopwatch display maximum value of 19 minutes and 59 seconds, 20 minutes a cycle, the sound report point is 15 seconds, 60 seconds, every minute, to the point report short sound, resistance reading for 3 seconds, the measured resistance Below the lower limit of the range, the sound is continuously sounded when the reading is invalid.

7. Display table: three three-and-a-half LCD digital meter heads, respectively showing test voltage, resistance and time.

8. Power supply: with 1.2V/2000mAh nickel-metal hydride rechargeable battery 10 sections, a total of DC12V power supply. With AC (50/60Hz) 220V access port to charge or float the battery.

9. The use of the environment

Temperature: -20 ° C ~ +40 ° C

Relative humidity: 20% to 90%

10. Size: 315 × 240 × 180mm (length × width × height)

11. Weight: 5.5kg

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