Product parameters:
Suitable for handover and preventive testing of high-capacity, high-voltage capacitive specimens.
Meet the test range:
1. AC withstand voltage test for 1.5km 10kV/300mm2 cable, capacitance ≤ 0.5632 μ F, test frequency 30-300Hz, test voltage 22kV, test time 5min.
2. AC withstand voltage test for 35kV/300mm2 cable at 0.35km, capacitance ≤ 0.0681 μ F, test frequency 30-300Hz, test voltage 52kV, test time 60min.
3. AC withstand voltage test of 35kV main transformer, capacitance ≤ 0.02 μ F, test frequency 45-65Hz, test voltage not exceeding 68kV, test time 1min.
4. AC withstand voltage test for electrical equipment such as 10kV switches, with a test frequency of 30-300Hz, a test voltage not exceeding 42kV, and a test time of 1 minute.
Main components of the device:
Serial number | Device name | Specification and model | Unit | Quantity |
1 | Variable frequency power supply | UHV-4kW | Tower | 1 |
2 | Excitation transformer | UHV-4kVA/1.5/3/6kV/0.4kV | Tower | 1 |
3 | High voltage reactor | UHV-25kVA/25kV | Section | 3 |
4 | Capacitive voltage divider | UHV-1000pF/80kV | Set | 1 |
Main technical parameters and functions:
Rated capacity | 75kVA |
Rated voltage | 25k；75kV |
Rated current | 3A；1A |
Measurement accuracy | System RMS level 1.5 |
Operating frequency | 30-300Hz |
Device output waveform | Sinusoidal wave |
Quality factor | Device Q≥30(f=45Hz) |
Waveform distortion rate | Output voltage waveform distortion ≤1% |
Input power supply | Single-phase 220 or three-phase 380V voltage, frequency 50Hz |
Working hours | Allow continuous 60min under rated load; Overpressure 1.1 times 1 minute |
Temperature rise | Temperature rise ≤65K after continuous operation under rated load for 60 minutes |
Protection function | Overvoltage, overcurrent, zero start, system mismatch (flashover) and other protection functions |
Ambient temperature | －20℃-55℃ |
Relative humidity | ≤90%RH |
Altitude | ≤3000m |
