Technical Parameters


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1. Rated output voltage: 0～660kV (RMS) and below

2. Output frequency: 20～300Hz

3. Resonant voltage waveform: sine wave, waveform distortion rate ≤1%

4. Full load working time: continuous working time 60min

5. System quality factor: ≥20 at maximum load

6. Frequency adjustment: fineness 0.1Hz, instability ≤0.01%

7. Working power supply: 220V or 380V single-phase mains

8. Product configuration and applicable objects

Scope of application description: Unless otherwise specified, the 10kV cable length given in the table above is the length at 2.0 times withstand voltage, 32Hz~300Hz. If it is 2.5 times withstand voltage, 39Hz~300Hz, the cable length should be reduced by 33% accordingly.

　　Product configuration description: 1. Users can optionally configure compensation capacitors

　　2. Special test objects can be customized



Common Models


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Model interpretation: DFVF3000-44/22, capacity is 44KVA, voltage is 22KV

I. Cable AC withstand voltage test series

































Model Satisfiable test items Equipment reactor configuration Remarks
DFVF3000-44/22 10kV (300mm) cable 1KM 22kV Ⅹ 1 unit Portable
DFVF3000-132/66 1. 10kV (300mm) cable 3KM

2. 35kV (300mm) cable 1KM		 22kV Ⅹ 3 units Portable
DFVF3000-264/52 1. 10kV (300mm) cable 5KM

2. 35kV (300mm) cable 2KM

3. 35kV transformers, switches,

4. 10kV motors, transformers

5. Generators of 600MW and below, etc.		 22kV Ⅹ 6 units Portable
DFVF3000-1560/66 110kV (300mm) cable 3KM 130kV Ⅹ 2 units Non-portable

II. Generator power frequency withstand voltage test series




























Model Satisfiable test items Equipment reactor configuration Remarks
DFVF3000-44/22 1. Generators of 100MW and below, phase capacitance 0.1-0.3uF

2. 10kV (300mm) cable 1KM		 22kV Ⅹ 1 unit Portable
DFVF3000-100/36 1. Generators of 600MW and below, phase capacitance 0.1-0.25uF

2. 10kV (300mm) cable 1.5KM		 18kV Ⅹ 2 units Portable
DFVF3000-176/44 1. Generators of 600MW and below, phase capacitance 0.1-0.3uF

2. 10kV (300mm) cable 3KM 3. Can also cover generator busbars, main transformers, etc.		 22kV Ⅹ 4 units Portable

III. GIS and SF6 switch AC withstand voltage test series






















Model Satisfiable test items Reactor configuration Remarks
DFVF3000-250/200 1. AC withstand voltage test for 110kV GIS

2. 35kV (300mm) cable 1KM

3. 10kV (300mm) cable 3KM

4. Power frequency withstand voltage for transformers below 220kV 5. AC withstand voltage for 110kV instrument transformers		 40kV Ⅹ 5 units Portable
DFVF3000-100/200 1. AC withstand voltage test for 110kV GIS 2. AC withstand voltage for 110kV instrument transformers 50kV Ⅹ 4 units Portable

IV. Power frequency AC withstand voltage test series for transformers, motors and other equipment






















Model Satisfiable test items Reactor configuration Remarks
DFVF3000-105/84 1. Power frequency withstand voltage test for 110kV transformers

2. Power frequency withstand voltage test for 10kV motors 3. AC withstand voltage test for 35kV switches

4. 10kV (300mm) cable 1KM		 28kV Ⅹ 3 units Portable
DFVF3000-100/80 1. Power frequency withstand voltage test for 110kV transformers

2. Power frequency withstand voltage test for 10kV motors 3. AC withstand voltage test for 35kV switches

4. 10kV (300mm) cable 1KM		 40kV Ⅹ 2 units Portable