Hubei, China
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Cable hipot test set, VLF high voltage generator, VLF high voltage test set manufacturer / supplier in China, offering Very Low Frequency High Voltage Hipot Test Set, DC system Matainence Comprehensive Battery Test Set, Portable multi-function digital three phase cable power quality analyzer and so on.

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Very Low Frequency High Voltage Hipot Test Set

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Min. Order / Reference FOB Price
1 Set US $2,000-10,000/ Set
Port: Wuhan, China
Transport Package: Plywood Case
Payment Terms: L/C, T/T, Western Union
Peak Voltage: 30kv/50kv/80kv
Power Supply: 220V±10%,50±5%Hz
Trademark: GDZX
Origin: China

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Basic Info

Model NO.: ZXVLF
HS Code: 8543709990

Product Description


Withstand voltage test is an essential preventive test for electrical equipment. It is divided into two parts: AC and DC withstand voltage test. AC test can be further divided into power frequency, variable frequency and 0.1Hz very low frequency test, among which the last one is highly recommended by IEC, due to its remarkable advantages. This device is especially suitable for electrical equipment whose insulation equivalent capacitance is large such as power cable, power capacitor, large and medium sized generators and motors , for withstand voltage test

Very Low Frequency High Voltage Hipot Test Set


  1. Data of current, voltage, wave form directly sampled at high voltage side, so very real and accurate.
  2. When output voltage exceeds the limit preset by user, the instrument will shut itself down within 20ms.
  3. Over-current protection on both high and low voltage sides, so automatic protection can be made according to the set limit of low and high voltage.
  4. Built-in high voltage output protective resistor, no need to connect resistor outside.
  5. Using high & low voltage closed loop negative feedback control circuit, no capacitive rise effect in the process of output.
Technique Parameters

Attention: If use Portable Generator, need generator to have stable voltage output and frequency ( Usually > 3kW, Frequency 50Hz,220V±5%). Otherwise some auxiliary measurements needed in parallel


ModelPeak VoltageMeasuring RangeWeightApplication
ZXVLF-30/1.130kV0.1Hz, ≤1.1μFController:4kg
10KV cable, Generator
0.05Hz, ≤2.2μF
0.02Hz, ≤5.5μF
ZXVLF-50/5.050kV0.1Hz, ≤5.0μFController:5kg
For cable burn-through
0.05Hz, ≤10μF
0.02Hz, ≤25μF
ZXVLF-80/1.180kV0.1Hz, ≤1.1μFController:5kg
35KV cable, Generator
0.05Hz, ≤2.2μF
0.02Hz, ≤5.5μF
Power supply:220V±10%,50±5%Hz
Output peak voltage unstability : 1%
Output voltage frequency unstability: 3%
Output voltage waveform distortion  :≤5%
Working condition : temperature : -10 ºC~+40 ºC ;humidity  :≤85%RH
Test scope:
1)The test object capacitance should be below the instrument rated capacitance
2)The waveform will be influenced If the test products capacitance is too small. The instrument can't normally output when it's below 0.05μF, In this situation you can use our Compensation Capacitor

Below for reference
Single phase ground capacitance of different Generators
ModelThermal PowerHydropower
Generator capacity(MW)20030060085125-150300400
single phase ground capacitance (μF)0.1980.18-0.260.31-0.340.691.8-1.91.7-2.52.0-2.5


Power capacitance of single-core XLPE insulated cable (µF/km) 

Capacity µF/Km
Voltage (kV)
area (cm²)

Remark: you are welcome to send your requirements to us

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