Advantages of Intelligent Dielectric Loss Tester
Darui Electric recommends：
Intelligent Dielectric Loss TesterThe instrument features simple operation, no need for data conversion, Chinese menu display, built-in printing function, strong anti-interference capability, and the fastest testing speed among similar domestic products. Working Principle of Intelligent Dielectric Loss Tester
The instrument measurement circuit includes one standard circuit and one test circuit:
1. The standard circuit consists of a built-in high-voltage high-stability standard capacitor and a standard resistor network. The computer collects the current amplitude and phase difference between the standard circuit current and the test circuit current in real time, and calculates the capacitance value (CX) and dielectric loss (tgδ) of the test specimen from these values.
2. The data acquisition circuit uses high-voltage stable components throughout. The acquisition board and acquisition computer are fully floating-shielded by an iron box, and the instrument enclosure is grounded for shielding. Additionally, anti-interference technologies such as optical data transmission, floating ground, large-area ground, single-point ground, and digital filtering are employed. Combined with the computer processing data from hundreds of power grid cycles, the measurement results are stable, accurate, and reliable.
Intelligent Dielectric Loss TesterTechnical Specifications
1. Ambient temperature: 0 ~ 40°C
2. Relative humidity: 30% ~ 70%
3. Power supply: Voltage: 220V±10%, Frequency: 50±1Hz
4. Dimensions: 500mm×300mm×400mm
5. Weight: Approx. 18Kg
6. Output power: 0.6KVA
7. Display resolution: 3-digit, 4-digit (internally all 6-digit)
8. Measurement range and output voltage selection:
Dielectric loss (tgδ): ±0.00 ~ ±999%
Specimen capacitance (Cx) and applied voltage:
2.5KV range: ≤300nF (300000pF) 3KV range: ≤200nF (200000pF)
5KV range: ≤76nF (76000pF) 7.5KV range: ≤34nF (34000pF)
10KV range: ≤20nF (20000pF)
9. Basic Measurement Error:
Dielectric loss (tgδ): 1%±7 digits (load current 20uA ~ 500mA)
Dielectric loss (tgδ): 2%±9 digits (load current 5uA ~ 20uA)
Capacitance (Cx): 1.5%±1.5pF
Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.
