GDCY-900kV/90kJ Impulse Voltage Test System
• Altitude: ≤1000M
• Environmental temperature: -20℃-40℃.Max. temperature difference: 25℃
• Environmental humidity: relative humidity≤75% (After the insulation surface is dried, the generator can be used normally)
•Anti -earthquake ability: ≤class 8.
• Place: Indoor
• Main power supply: 380V three-phase four-wire, two-phase ≥20kVA
• Control voltage: 220V, single-phase ≥5kVA.
• The waveform of the power supply voltage is a sine wave, the waveform distortion rate is less than 3%, the frequency is 50Hz, and the power supply side should not suffer from overvoltage from the outside.
• There should be a reliable grounding point, the grounding power grid should have good impact characteristics, the grounding resistance should not be greater than 0.5Ω in the steady state.•
• Nominal voltage: ±900kV
•Rated energy: 90kJ
•Impulse capacitance: 0.1µF
•Nominal stage voltage: ±150kV
•Number of Stage: 6
• Rated stage energy: 15kJ
•Rated stage capacitance: 1.33µF
• Synchronization error rate: ≤1%
• Min. output voltage: ≥15%Un
• Waveform resistors are supplied, it can be adjusted based on load.
• Impulse voltage waveform and efficiency
- Standard lighting wave: wave head time: 1.2±30µs, wave tail time: 50±20%µs
When the positive and negative polarity lightning shock wave is no-load, the voltage utilization coefficient is ≥90%.•
- Standard lightning chopping wave: wave head time: 1.2±30%µs, truncation time: 3-6µs.
l With Glaninger circuit, Auxiliary regulation in the low-voltage circuit is equivalent to high-voltage wave modulation resistor to optimize the waveform.
- Rated voltage: 100kV.
- Capacitance: 2000pF.
- Resistor value: 0.1/0.2/0.5Ω current resistors, interchangeable
