Due to the large capacitance of the insulation layer of the cable, it is required that the dielectric loss instrument have a large testing capacity and a high testing voltage. For example, for 35kV cables, the dielectric loss test voltage should be 1.5 times U0 (i.e. 39KV). The conventional power frequency dielectric loss tester has a small load capacity and a low test voltage (less than 12KV), which cannot meet this testing requirement. Ultra low frequency has strong carrying capacity due to its low operating frequency, making it suitable for conducting dielectric loss tests on cables.

1.Dielectric loss test voltage range: 1kV-40kV (low test voltage affects test accuracy)

2.Dielectric loss test frequency: 0.1Hz

3.Dielectric loss measurement range: 0.01 × 10-3- 655.35 × 10-3 for sizes greater than 655.35 × The value of 10-3 will be greater than 655.35 × 10-3 Reminder

4.Dielectric loss measurement accuracy: 1%

5.Dielectric loss resolution: 1x10-5

6.Capacitance measurement range: 0.001 μ F–10 μ F

7.Electrical capacity resolution: 0.001 μ F

8.Capacitance measurement accuracy 3%

9.Insulation resistance measurement range: 1MΩ -65535MΩ. For values greater than 65535MΩ, a prompt of>65535MΩ will be given (these data are located in the qualified area of the cable).

10.Insulation resistance resolution: 1M Ω

11.Insulation resistance measurement accuracy 3%

12.Voltage accuracy: 3%

13.AC current range: 0-59mA

14.AC current resolution: 0.1mA

15.AC current accuracy: 3%

16.DC current range: 0-20mA

17.DC current resolution: 1 μ A

18.DC current accuracy: 3%

19.RS232 (or USB) communication interface