160kV/160kVA HV Series AC Resonance Test Device
160kV/160kVA HV Series AC Resonance Test Device
Product overview
This test device principal for 220kV/25000kVA Main transformer neutral point AC voltage withstand test. The reactor is designed to meet the requirements of low voltage AC voltage test, such as high voltage and low voltage, and it can meet the requirement 10kV cable.
The device is composed of a frequency conversion control power supply, an excitation transformer, a reactor, a capacitor voltage divider, and a compensating capacitor.
Tech Data
| Rated Voltage | 160kV |
| - Complies with AC withstand voltage test requirements for 220kV/25000kVA main transformer neutral points | |
| - Test frequency: 45–65Hz | |
| - Maximum test voltage: ≤160kV | |
| - Test duration: 1min | |
| Output Voltage Waveform Distortion Rate | <1.0% |
| Continuous Operating Time (Rated Conditions) | 60 minutes |
| Device Quality Factor (Q) | Q > 30 |
| Full Load Factor (Q) for GIS, Switches, etc. | Q > 20 (Load-dependent) |
| Input Power Supply | Three-phase 380V or Single-phase 220V |
| Frequency Regulation Range | 30Hz ～ 300Hz |
| System Measurement Accuracy | 1.50% |
| Protection Functions | Over-voltage protection, Over-current protection, Zero-position protection |
Related data
Capacity selection of resonant device
Test current: I=2 PI fCU * 10-3 (A)
Frequency selection (HZ)
1, generator -- 50HZ, take 50HZ
2, transformers -- 45~65HZ, take 50HZ
3, GIS, switch, bus - - - 30~300HZ, take 45HZ
4, power cable: 30~300HZ, take 35HZ
Voltage selection (kV)
Determine the maximum test voltage in accordance with the regulations.
Capacitance (UF)
Determine the maximum capacity of the tested product
Maximum capacity: P=UI x 1.25 (kVA)
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