Dielectric Loss Tester
Darui Electric recommends:
变频抗干扰介质损耗测试仪（Frequency interference dielectric loss tester)是发电厂、变电站等现场全自动测量各种高压电力设备介损正切值及电容量的高精度仪器。主电源由仪器内部的逆变器产生，经变压器升压后用于被试品测试。
高压变频抗干扰介质损耗测试仪主要技术参数
Operating Conditions: -5℃~40℃ RH<80%
Power Supply: AC 220V±10%, Frequency Unlimited
HV Output: 1-10kV, 1kV steps
Accuracy: 5%
Max current: 140mA
Capacity: 1000VA
Self-excitation: AC 0-30V, 45/55Hz
Max current: 15A
Resolution tgδ: 0.001%, Cx: 0.1pF
Features
1. For instrument fault analysis.
2. Strong anti-interference, stable at 500KV+ substations. Single and 45/55Hz dual frequency testing.
3. Gradual voltage ramp up/down prevents capacitive rise effect, protecting test object and instrument.
4. Overcurrent/overload protection instantly cuts test power for safety.
5. Test cables made of silicone rubber and special insulation, flexible, ground-drag usable at 10KV.
6. Electronic calendar and large storage, 100 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.
