Series resonance test device
1. Subject
1.10kV/300mm2 cable, unit length capacitance 0.37uF/km, cable length 1.4km, tested cable capacitance 0.153uF, test frequency 30-300Hz, test voltage 52kV, withstand voltage time 60min;
2. 35kV power transformer power frequency AC withstand voltage test, capacitance ≤0.02uF, test frequency 45～65Hz, test voltage not exceeding 68kV, test time 1min;
3. AC withstand voltage test for switches and transformers with voltage levels of 35kV and below, the test frequency is 30-300Hz, the test voltage does not exceed 100kV, and the test time is 1min;
2. Environmental conditions for device use
1. Ambient temperature: -5℃—45℃;
2. Relative humidity: ≤90﹪, no condensation;
3. Altitude: ≤1000m.
3. The main technical parameters and functions of the system
1. Rated capacity: 108kVA;
2. Rated voltage: 27kV; 100kV;
3. Rated current: 4A; 1A;
4. Power supply: single-phase 220V±10﹪;
5. Working frequency: 30-300Hz;
6. Frequency resolution: 0.1Hz; frequency instability: ≤0.1%;
7. Working time: 15min continuous operation is allowed under rated power;
8. Temperature rise: After 15 minutes of continuous operation at rated power, the temperature rise of each part of the device is ≤65K;
9. Output waveform: sine wave, waveform distortion rate <1%;
10. Quality factor: the device itself Q≥30 (when f=45Hz);
11. Protection: with over-current, over-voltage and flashover protection (see the frequency conversion power supply section for auspiciousness);
12. System measurement accuracy: effective value 1.5.
Configuration equipment list
| number | Equipment name | Models and Specifications | unit | Quantity |
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Frequency Power | FKVF-6kW/220V | station | 1 |
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Excitation transformer | CQSB(J)-6kVA/1.5×4kV/0.225kV | station | 1 |
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Dry reactor | CHX(Jf)-27kVA/27kV | Section | 4 |
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Capacitor voltage divider | TRF-100kV/150pF | station | 1 |
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Compensation capacitor | BWF-100kV/14.5nf | station | 1 |
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Insulation support | set | 1 | |
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Equalizing ring | set | 1 | |
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Wiring | set | 1 |
