● This system requires that the weight of components that can be moved on site by a single person does not exceed 30kg, suitable for on-site handling;
● The power supply adopts 220V single-phase or 380V single-phase, convenient for on-site power access;
● The reactor part adopts dry-type epoxy casting, which is beautiful and reliable, suitable for various types of cables.
Technical Parameters
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 above table is the length under 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
Model interpretation: DFVF3000-44/22, capacity is 44KVA, voltage is 22KV
I. Cable AC withstand voltage test series
| Model | Test items that can be satisfied | 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 | Test items that can be satisfied | 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 | Test items that can be satisfied | Reactor configuration | Remarks |
| DFVF3000-250/200 | 1. AC withstand voltage test of 110kV GIS 2. 35kV (300mm) cable 1KM 3. 10kV (300mm) cable 3KM 4. Power frequency withstand voltage of transformers below 220kV 5. AC withstand voltage of 110kV instrument transformers |
40kV Ⅹ 5 units | Portable |
| DFVF3000-100/200 | 1. AC withstand voltage test of 110kV GIS 2. AC withstand voltage of 110kV instrument transformers | 50kV Ⅹ 4 units | Portable |
IV. Power frequency AC withstand voltage test series for transformers, motors and other equipment
| Model | Test items that can be satisfied | Reactor configuration | Remarks |
| DFVF3000-105/84 | 1. Power frequency withstand voltage test of 110kV transformers 2. Power frequency withstand voltage test of 10kV motors 3. AC withstand voltage test of 35kV switches 4. 10kV (300mm) cable 1KM |
28kV Ⅹ 3 units | Portable |
| DFVF3000-100/80 | 1. Power frequency withstand voltage test of 110kV transformers 2. Power frequency withstand voltage test of 10kV motors 3. AC withstand voltage test of 35kV switches 4. 10kV (300mm) cable 1KM |
40kV Ⅹ 2 units | Portable |
