| After-sales Service: | Online |
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| Warranty: | 1 Year |
| Type: | Ultra-Low Frequency Generator |
| Maxcapacity: | <1000KN |
| Accuracy Grade: | 1 |
| Load Way: | Electronic Load |
| Samples: |
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| Customization: |
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Audited Supplier KGVLF Cable Programmed Ultra-low Frequency High Voltage Vlf Generator AC Hipot Tester
Product Introduction
KGVLF programmable ultra-low frequency high voltage generator is mainly used in the power sector for PE(polyethylene) /XLPE(crosslinked polyethylene) and other plastic power cable non-destructive insulation voltage test, with power overcurrent, high voltage overcurrent, fuel tank overheat protection function, output regulator does not return to zero high voltage can not start and other functions, is the replacement of traditional power frequency voltage test equipment.
KGVLF Cable Programmed Ultra-low Frequency High Voltage Vlf Generator AC Hipot Tester
Product Characteristics
1, the rated voltage is less than or equal to 50kV ultra-low frequency using a single link structure (a booster); The ultra-low frequency of more than 50kV adopts a series structure (two boosters in series), which greatly reduces the overall weight and enhances the load capacity, and the two boosters can be used separately for the ultra-low frequency of low voltage levels.
2, current, voltage, waveform data are directly sampled from the high voltage side, so the data is accurate.
3, with overvoltage protection function, when the output exceeds the set voltage limit value, the instrument will stop protection, operation time is less than 20ms.
4, with overcurrent protection function: designed for dual protection of high and low pressure, the high pressure side can be accurate shutdown protection according to the set value; When the current on the low voltage side exceeds the rated current, the shutdown protection will be carried out, and the operation time is less than 20ms.
5, the high voltage output protection resistance is designed in the booster body, so there is no need to connect another protection resistance outside.
6, due to the use of high and low voltage closed loop negative feedback control circuit, so the output has no capacity rise effect.
KGVLF Cable Programmed Ultra-low Frequency High Voltage Vlf Generator AC Hipot Tester
Product Parameters
1, output rated voltage: See Table 1
2, output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3, carrying capacity: 0.1Hz maximum 1.1μF
0.05Hz Max. 2.2μF
0.02Hz Max. 5.5μF
4, measurement accuracy: 3%
5, positive voltage, negative peak error: ≤ 3%
6, voltage waveform distortion: ≤ 5%
7, use conditions: indoor, outdoor; Temperature: -10ºC∽+40ºC; Humidity: ≤ 85%RH
8, power safety tube: See Table 1
9, power supply: frequency 50Hz, voltage 220V±5%
| Model | peak voltage | measuring range | Weight | Usage |
| VLF-30/1.1 | 30kV | 0.1Hz≤1.1μF | Controller: 4kg booster:25kg | 10kV and below voltage cables, generators, etc |
| 0.05Hz≤2.2μF | ||||
| 0.02Hz≤5.5μF | ||||
| VLF-50/5.0 | 50kV | 0.1Hz≤5.0μF | Controller: 5kg booster:55kg | Used to burn through cable faults |
| 0.05Hz≤10μF | ||||
| 0.02Hz≤25μF | ||||
| VLF-80/1.1 | 80kV | 0.1Hz≤1.1μF | Controller: 5kg booster:45kg | 35kV and below voltage cables, generators, etc |
| 0.05Hz≤2.2μF | ||||
| 0.02Hz≤5.5μ |
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Audited Supplier 
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