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35kV Power Cables AC Hipot Tester 0.01Hz High Voltage VLF Hipot Instruments

High Voltage VLF Hipot Instruments is a high-precision instrument mainly used to test the insulation performance of cross-linked polyethylene insulated power cables and large generators.
It generates ultra-low frequency (usually 0.1Hz, 0.05Hz, 0.02Hz, and 0.01Hz) high-voltage AC signals to simulate the voltage stress that power cables and other equipment may withstand during actual operation, in order to evaluate their insulation strength and durability.
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  • VLF-80KV

  • CHONGQING GOLD

  • 9030849000

35kV Power Cables AC Hipot Tester 0.01Hz High Voltage VLF Hipot Instruments

High Voltage VLF Hipot Instruments (1)

Introduction

  • High Voltage VLF Hipot Instrument combines the advanced technology of modern digital conversion, fully computer control, automated boost, buck, measurement and protection.

  • High Voltage VLF Hipot Instruments has the characteristics of stable output voltage, high testing efficiency, and good safety, and is widely used in fields such as power, energy, and manufacturing to ensure the reliability and safety of equipment during long-term operation.

  • Regarding 35KV cable test, should be single-phase test, voltage is set as 60KV(conventional requirements) -78kV (according to the requirements of the regulation), frequency is set as 0.1Hz(recommended), 0.05Hz(recommended), 0.02Hz(the process of voltage boost is slow), 0.01Hz(the process of voltage boost is slow, 10-40 minutes,  Suitable for cables of more than 10 km), the carrying capacity mentioned in the manual is the theoretical value, and the length of 35KV cable can reach 3-15 km on site.



How to choose the appropriate rated voltage?


1. Kindly make sure that the capacitance of test products is below the instrument rated capacitance.

2. Kindly provide the voltage level of your power cables to us.

3. Kindly tell us the length of your power cables.


Technical Index of VLF-80KV Hipot  Instruments


Model Rated Voltage Load Capacity Fuse
Application
VLF-80KV

80KV

(Peak)

0.1Hz,≤0.35µF


0.05Hz,≤0.7µF

0.02Hz,≤1.75µF

0.01Hz,≤3.5µF







25A

35KV and below the cable,Generator

Use HV TANK I alone

30kV

(peak )

0.1Hz,≤1.0µF

0.05Hz,≤2.0µF

0.02Hz,≤5.0µF

0.01Hz,≤10.0µF


10KV and below the cable,Generator

Use HV TANK II alone

50kV

(Peak)

0.1Hz,≤0.4µF

0.05Hz,≤0.8µF

0.02Hz,≤2.0µF

0.01Hz,≤4.0µF

20KV and below the cable,Generator

VLF Hipot instrument


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