VLF AC Hipot Test Set

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GDVLF AC Hipot Test Set

General introduction

GDVLF Series Very Low Frequency AC Hipot Test Set is the direct method to identify the insulation strength of XLPE power cables. It uses 0.1Hz very low frequency technology, the capacity is only 1/500 of power frequency. With small size and light weight, it is suitable to make withstand voltage test for large capacitance equipment such as power cables, power capacitors, large and medium generators/motors.

Features

  • Built-in protective resistor
  • Over-current protection function
  • Over-voltage protection function
  • Sampling from high voltage side, data is more real.
  • Data of current, voltage, wave form can be directly sampled at high voltage side, so the data is true and accurate.
  • With high and low voltage double protection, protective action time is less than 20ms.
  • Closed-loop negative feedback circuit is adopted. No capacity rising during outputting.

Specification

Specification

GDVLF-30kV

GDVLF-40kV

GDVLF-50kV

GDVLF-80kV

Rated Output Voltage

30kV(Peak value)

40kV(Peak value)

50kV(Peak value)

80kV(Peak value)

Application

Power cables and generators at 10kV and below

Power cables and generators at 13.8kV and below

Power cables and generators at 15.75kV and below

Power cables and generators at 35kV and below

Load capacity

0.1Hz,≤1.1μF

0.1Hz,≤1.1μF

0.1Hz,≤0.8μF

0.1Hz,≤0.5μF

0.05Hz,≤2.2μF

0.05Hz,≤2.2μF

0.05Hz,≤1.6μF

0.05Hz,≤1.0μF

0.02Hz,≤5.5μF

0.02Hz,≤5.5μF

0.02Hz,≤4μF

0.02Hz,≤2.5μF

Output frequency

0.1Hz

0.05Hz

0.02Hz

Weight

Control unit: 5kg

Control unit: 5kg

Control unit: 5kg

Control unit: 5kg

Booster: 25kg

Booster: 35kg

Booster: 50kg

Booster I: 25kg

Booster II: 50kg

 

 

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