80kv Vlf AC Hipot Test Set

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80kv Vlf AC Hipot Test Set

Model:HMCOP-80kV;Rated Voltage:80 kv (peak value);Controller: 4 kg; Booster: 50 kg

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Description

Technical Parameters

Product Applications

1. Power Transmission System Maintenance: Testing and diagnostics of 69kV-class underground transmission cables

2. Offshore Wind Farm Infrastructure: Testing submarine transmission cables connecting offshore wind farms to land (typically 33kV-66kV)

3. Large-scale Industrial Power Systems: High-voltage distribution maintenance:

Metal & Mining: Smelters, large motor drives (5-40MW)

Oil & Gas: Offshore platforms, critical feeder lines in refineries

Data Centers: High-voltage backup power distribution systems

4. Power Generation Facilities: Insulation testing of large generators and associated equipment

5. Railway and Transit Electrification: Testing of 25kV-50kV traction power supply systems

High-speed rail systems: Catenary cables

Metro systems: Third-rail power supply cables

Traction substations: Insulation of transformers and switchgear

6. Renewable Energy Grid Integration: Grid connection infrastructure for large-scale renewable energy projects

7. Cable Manufacturing Quality Control: Testing at ultra-high voltage cable production plants

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Products Parameter

Model

Rated Voltage

Load Capacity

Power Fuse

Product Structure and Weight

80/0.5

80 kv (peak value)

0.1Hz,≤0.5uF
0.05Hz,≤1.1uF
0.02Hz,≤2.2uF
0.01Hz,≤5.5uF

15A

Controller: 4 kg

Booster: 50 kg

Wiring Method

The wiring method for single connected ultra-low frequency withstand voltage test below 60kV is as follows

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The wiring method for single connected ultra-low frequency withstand voltage test below 60kV is as follows

The wiring method for the ultra-low frequency withstand voltage test when two stage boosters are connected in series is as follows

80kV01

Maintenance & FAQs

Q: What types of equipment can I test with an 80kV tester that I can't test with lower-voltage models?

A: The 80kV rating allows testing of:

69kV class transmission cablesand equipment

Long-distance submarine cablesfor offshore wind farms

Large generator stator windingsin power plants

Extra-high-voltage switchgearand bus systems

Industrial system cablesat utilities and large plants requiring higher test voltages

Q: Why is the 80kV rating important? Don't most systems operate at lower voltages?

A: While operating voltages may be lower, international standards(IEEE 400.2, IEC 60502) require testing at 2-3 timesthe phase-to-ground operating voltage. For a 69kV system (40kV phase-to-ground), testing at 3X requires 120kV. The 80kV tester can perform the required tests on these higher-voltage systems that lower-capacity testers cannot handle.

Q: What are the main advantages of VLF testing over DC testing?

A: VLF testing is safer for modern polymeric cables(XLPE, EPR) because:

No space charge accumulationthat can damage insulation

Simulates actual operating conditions(AC stress)

Better detects water treesand insulation aging

Recommended by IEEE and IEC standardsfor polymeric cables

Q: What power supply is required for the 80kV model?

A: The 80kV tester typically requires:

380V AC three-phase powerfor full capability

5-8 kVA power capacity

Stable voltage without fluctuations

Reliable earth ground connection