Payment & Shipping Terms:
|Range Of Application:||10kV~500kV Voltage Grade||Frequency:||30~300Hz|
|Input Power:||Three-phase 380V Or Single-phase 220V|
This product is mainly designed and made for AC withstand voltage test, such as the cable of 35kv and 110kv, GIS of 35kv and 110kv, and 110kv/63000KVA total insulation of generator transformer. The separated inductor can satisfy the test requirement of high voltage and low current, and can also meet the demand of low voltage like cable of 10kv, it means it has wide range of application.
This device is consist of variable frequency control Power Supply, Excitation transformer, inductor and capacitance divider.
1. rated voltage:
(1) 90 kv - AC withstand voltage test for 35 kV cable; working frequency: 30-300 Hz; The test voltage should not exceed 52 kV and the test time should be 60 minutes.
(2) 135 kV - - AC withstand voltage test for 110 kV cable; working frequency: 30-300 Hz; The test voltage should not exceed 128 kV and the test time should be 60 minutes.
(3) 135kV - - AC withstand voltage test for 35 kV GIS, switch; working frequency: 30-300 Hz, test voltage not exceeding 95 kV, test time 1 min;
(4) 270 kV - AC withstand voltage test for 110 kV GIS, switch; working frequency: 30-300 Hz, test voltage not exceeding 265 kV, test time 1 min;
(5) 180kV - AC withstand voltage test of 110kV/63000kVA main transformer with full insulation; working frequency: 45-65Hz, test voltage not exceeding 160 kV, test time 1 min;
2. Output voltage waveform distortion rate: <1.0%
3. Allow continuous working hours: 60 minutes of one-time work under rated conditions;
4. Device's own quality factor: Q ≥30 (f = 45Hz)
5. Device output waveform: sine wave
6. Input power supply: three-phase 380V or single-phase 220V
7. Frequency regulation range: 30Hz-300Hz
8. Measurement accuracy of the system: 1.5%
9. The device has protective functions such as over-voltage, over-current and zero-position start.
1.One variable frequency power supply.
2.Eight high voltage inductors.
3.One excitation transformer.
4.One set capacitance divider.
5..One set Test wire.
Excitation transformer output voltage selection
Testing voltage (kv)
|35kV/300mm2 cable 3.5km||Two inductors series connection and four parallel connection||
|110kV/300mm2 cable 0.5km||Three inductors series connection and two parallel connection||5kv||≤128kv|
|110kv GIS switch||6 series connection||15kv||≤265kv|
|35kv GIS switch||3 series connection||5kv||≤95kv|
|110kv/63000KVA main transformer total insulation||5 series connection||15kv||≤160kv|
Note: Products can be made according to customer's specific requirements .
Competitive advantage :
1.Life is priceless, all tests are for safety, Product quality is to ensure safety
2. Good stability,With a variety of working modes, easy to operate.
3.FACTORY DIRECT PRICE
4.SUPPORT One year free warranty, three years quality assurance, lifetime maintenance.