Variable Frequency Anti-Interference Dielectric Loss Tester
Darui Electric recommends：
Variable Frequency Anti-Interference Dielectric Loss Tester - Product Features
1. Fault analysis capability.
2. Strong anti-interference, stable results even at 500kV+ substations. Supports both single-frequency and 45/55Hz dual-frequency testing.
3. Gradual voltage ramp up/down prevents capacitive rise effect, protecting test object and instrument.
4. Overcurrent and overload pre-protection, quickly cuts test power to protect samples and instrument.
5. Test cables made of silicone rubber and special insulation materials, lightweight and flexible, ground-drag usable at 10kV.
6. Built-in electronic calendar and large storage, stores up to 100 test data sets.
7. RS232 interface for data upload to computer.
Usage Precautions
1. Use only on de-energized equipment; other equipment may remain energized.
2. Built-in booster: ensure HV lead insulation and personnel safety.
3. Instrument must be reliably grounded.
4. Check equipment insulation before testing.
5. Confirm withstand voltage, select correct boost range.
6. Keep HV cables away from personnel during testing.
7. Input voltage: AC220V±10%. Operation outside this range may affect test accuracy. Max input: AC264V. Exceeding this causes permanent damage not covered by warranty.
8. If printer jams, remove paper roll, rewind tightly, reinstall.
9. Protect from moisture and strong vibration.
10. Ground generator output neutral, otherwise ground error alert.
Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.
