Descrizione
The 145kV power system GIS AC withstand voltage test without partial discharge is applicable to test items with a maximum capacitance of <0.0001F/bay (based on 3 bays + 9m GIS internal busbar ≤0.001μF), a total capacitance of ≤0.004uF, a test frequency of 100Hz, and a maximum test voltage of 235kV.
Main Features:
- High voltage is fully enclosed in a shielded chamber, ensuring safe and reliable testing.
- Overall partial discharge can be controlled within 5 pc.
- Compact size minimizes space usage and lightweight components.
- Built-in high-voltage disconnect switch enables multi-purpose use.
- Easy connection: Direct connection to the test object makes testing more convenient.
- Durable structure capable of withstanding long-distance transportation.
- Reduced system power capacity requirements.
Technical Parameters
- Output power 50 kW
- Input voltage 380 V ± 10%, three-phase, 50 Hz
- Output voltage: Single-phase 0-350 V (sine wave), continuously adjustable.
- Output waveform: Pure sine wave
- Output waveform distortion <1.0%
- Output voltage instability <1.0%
- Voltage resolution 0.1 V
- Output current 0-142.8 A
- Cooling method: Forced air cooling
- Frequency adjustment range 20-300 Hz
- Frequency resolution 0.01Hz
- Frequency instability <0.05%
- Noise level <85dB
- Partial discharge <10pC
- Insulation rating 1.1Uo/1min
- Continuous operating time >180 minutes at rated power
