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Quick Details

  • Place of Origin: Chongqing, China (Mainland)
  • Brand Name: Gold
  • Model Number: VLF AC Hipot Tester
  • Power: Electronic
  • Usage: Universal Testing Machine
  • Apparatus: VLF Tester / Very Low Frequency Tester
  • Function: High voltage test, Cable fault determination
  • Types: 0.1 Hz and 0.01Hz
  • Rated Voltage: 30kV~80kV
  • Rated current: 20mA~30mA (Peak)
  • Product Structure: Controller and AC Booster
  • Warranty Period: 1 Year
  • Operating Temperature: 0~50℃
  • Dissipation Power: 30-80KV
  • Certificate: CE

Packaging & Delivery

Packaging Details Standard Wooden Case for VLF AC Hipot Tester , Cable high voltage tester
Delivery Time 10 business days once order confirmed


VLF AC Hipot Tester ,AC Voltage Booster  



A VLF hipot tester is just an AC output source but with an output frequency of 0.1 Hz or lower rather than 50/60Hz. Although

the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to a capacitive load, like a long cable.


There is no better way to verify the AC integrity of a cable than to hipot it with AC voltage.


VLF hipots testers are used to provide a go/no-go, or pass/fail, voltage withstand test. It can also be used as the voltage source for diagnostic cable testing. Contact HVI for more on Tan Delta and Partial Discharge measurement accessories.




VLF AC Hipot Tester is applied in power cable and generator insulation test in power system



Technical Index:


1Max voltage output: refer to table 1
2Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3Measurement error < 3%RDG+0.3%FS
4Positive and negative voltage peak errors < 3%RDG+0.3%FS
5Power supply:AC220V ± 10%, 50Hz/60Hz
6Voltage wave form distortion: <5%
7Environment temperature: 0~50°C
8Humidity: 85%RH




Model and Parameter:


Model No.

Rated Voltage/Current

Load Carrying Capacity

Product Structure and Weight


30kV/20mA (Peak)

0.1Hz, ≤ 1.1µ F

Controller: 4kg  Booster: 25kg

0.05Hz, ≤ 2.2µ F

0.02Hz, ≤ 5.5µ F


50kV/30mA (Peak)

0.1Hz, ≤ 1.1µ F

Controller: 4kg  Booster: 50kg

0.05Hz, ≤ 2.2µ F

  0.02Hz, ≤ 5.5µ F


80kV/30mA (Peak)

0.1Hz, ≤ 0.5µ F

    Controller: 4kg   Booster Grade 1(30kV): 25kg Booster Grade 2(50kV): 50kg




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