The XHJS1000 inter-frequency dielectric loss tester is a high-precision test instrument for testing the dielectric loss tangent and capacitance of various high-voltage power equipment in power plants substations. The instrument is an integrated structure, built-in dielectric loss test bridge, variable frequency voltage regulator, step-up transformer and SF6 high stability standard
capacitor. The test high voltage source is generated by the inverter inside the instrument and is used for testing the test object after being boosted by the transformer. The frequency can be changed to 50Hz, 47.5Hz\52.5Hz, 45Hz\55Hz, 60Hz, 57.5Hz\62.5Hz, 55Hz\65Hz. The digital notch technology is used to avoid the interference of the power frequency electric field to the test, which fundamentally solves the problem. The problem of accurate measurement under strong electric field interference. At the same time, it is suitable for the occasion of power supply detection after power failure. The instrument is equipped with an insulating oil cup and a temperature control device to test the dielectric loss of the insulating oil.
Specifications1. Conditions of use -15°C-40°C RH<80%
2. Anti-interference principle
3. Power supply AC 220V±10% Allowed generator
4. High voltage output 0.5KV - 12KV every 0.1kV Accuracy 2% Maximum current 167mA Capacity 2000VA
5. Self-excited power supply AC 0V∽50V/15A 50HZ, 60HZ single frequency 45HZ/55HZ 47.5HZ/52.5HZ
55HZ/65HZ 57.5HZ/62.5HZ Automatic double frequency conversion
6.Points resolution tgδ: 0.001% Cx: 0.001pF
7.Accuracy △tgδ: ± (reading *1.0%+0.040%) △C x :± (reading *1.0%+1.00PF)
8.Measuring range tgδ Unlimited C x: 15pF < Cx < 300nF
12KV Cx < 300 nF
5KV Cx < 150 nF
1KV Cx < 300 nF
CVT test Cx < 300 nF
9. CVT ratio range 10-10000
CVT ratio accuracy 0.1%
CVT ratio resolution 0.01
10. Dimensions (host) (mm) 350 (L) × 270 (W) × 270 (H)
Dimensions (accessory box) (mm) 350 (L) × 270 (W) × 160 (H)
11. Memory size 200 groups Support U disk data storage
12. Weight (host) 22.75Kg