Product Introduction:
The dual-frequency anti-interference dielectric loss tester breaks through the traditional bridge measurement method, adopting variable frequency power supply technology, using microcontrollers and modern electronic technology for automatic frequency conversion, A/D conversion, and data calculation; achieving strong anti-interference capability, fast test speed, high accuracy, fully automatic digitalization, and simple operation; the power supply uses a high-power switching power supply, outputting 45Hz and 55Hz pure sine waves, with automatic voltage boosting, providing a maximum voltage of 10 kV; automatically filtering out 50Hz interference, suitable for on-site testing in environments with strong electromagnetic interference such as substations. The variable frequency anti-interference dielectric loss tester is widely applicable for dielectric loss measurement of transformers, transformers, bushings, capacitors, arresters, and other equipment in the power industry.
Product Parameters:
Accuracy: Cx: ±(reading×1%+1pF)
tgδ: ±(reading×1%+0.00040)
Anti-interference index: Variable frequency anti-interference, can still achieve the above accuracy under 200% interference
Capacitance range: Internal high voltage: 3pF～60000pF/10kV 60pF～1μF/0.5kV
External high voltage: 3pF～1.5μF/10kV 60pF～30μF/0.5kV
Resolution: up to 0.001pF, 4 significant digits
tgδ range: unlimited, resolution 0.001%, automatic identification of three types of test objects: capacitance, inductance, and resistance.
Test current range: 10μA～1A
Internal high voltage: Set voltage range: 0.5～10kV
Maximum output current: 200mA
Voltage regulation method: continuous smooth adjustment
Test frequency: 45, 50, 55, 60, 65Hz single frequency
45/55Hz, 55/65Hz, 47.5/52.5Hz automatic dual frequency conversion
Frequency accuracy: ±0.01Hz
External high voltage: Maximum test current 1A for normal wiring, power frequency or variable frequency 40-70Hz
Maximum test current for reverse wiring: 10kV/1A, power frequency or variable frequency 40-70Hz
CVT self-excitation method low voltage output: Output voltage 3～50V, output current 3～30A
Measurement time: about 40s, depending on measurement method
Input power: 180V～270VAC, 50Hz±1%, mains or generator power supply
Computer interface: Standard RS232 interface
Printer: Weihuang A7 thermal micro printer
Ambient temperature: -10℃～50℃
Relative humidity: <90%
Dimensions: 460×360×350mm
Instrument weight: 28kg
