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I. Overview
The automatic anti-interference dielectric loss tester is an advanced instrument for measuring dielectric loss (tgδ) and capacitance (Cx). It is used to measure the dielectric loss (tgδ) and capacitance (Cx) of various high-voltage equipment such as insulating materials, insulating bushings, power cables, capacitors, transformers, and mutual inductors under power frequency high voltage.
It eliminates the QSI high-voltage bridge and has the advantages of simple operation, Chinese display, printing, convenient use, no need for conversion, built-in high voltage, strong anti-interference ability, and short test time. It is the third-generation intelligent dielectric loss tester from our factory.
II. Technical Specifications
1. Test ambient temperature: 10℃～30℃ (LCD screen should avoid prolonged sunlight exposure)
2. Relative humidity: 20%～80%
3. Power supply: Voltage: 220V±10%, Frequency 50±1Hz
4. Dimensions: Length*Width*Height = 470mm*320mm*360mm
5. Weight: 18kg
6. Output power: 1.5KVA
7. Display resolution: 3 digits, 4 digits (all internal are 6 digits)
8. Test methods: Positive connection method, reverse connection method, external test voltage method
9. Measurement range: Internal test voltage:
tgδ: 99.9%
Cx: 30 pF < Cx (10KV) < 60000 pF
10KV Cx < 60000 pF
5KV Cx < 80000 pF
2.5KV Cx < 0.3uF
External test voltage:
Determined by the output power of the external test transformer
10. Basic measurement error: Dielectric loss (tgδ): 1%±0.09%
Capacitance (Cx): 1.5%±1pF
11. Resolution: tgδ: 0.01%
Cx: 0.1pF
III. Structure
The instrument adopts an integrated structure of voltage boosting and measurement, with adjustable output voltage in five gears from 2.5KV to 10KV to meet various needs. No external equipment is required during measurement. The wiring is similar to that of the QSI bridge but more convenient.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
