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NR7410 series insulating oil dielectric loss tester
Insulating oil dielectric loss tester meets the requirements of GB/T5654-2007 "Measurement of relative permittivity, dielectric loss factor and DC resistivity of liquid insulating materials", and is used for the dielectric loss (tg δ) and capacitance of various insulating liquids (Cx) measurement. NR7410 insulating oil dielectric loss tester can identify whether the insulating oil contains moisture and impurities, judge its aging degree, and the insulation performance. It is widely used in the measurement of dielectric loss and capacitance of transformer oil, capacitor oil and cable oil. Light weight and beautiful appearance.
◆Using electromagnetic induction heating technology
The instrument adopts high-frequency electromagnetic induction heating technology, which has uniform heating, fast heating speed, short time, accurate temperature control, and is not affected by the high or low ambient temperature. Single-chip microcomputer control and calculation, realize automation, high capacitance and dielectric loss measurement accuracy, stable data, and good repeatability;
◆ Wide voltage range
The output voltage is continuously adjustable from 300 to 2000V, which is suitable for the voltage level needs of different test products. Users can choose and control according to the test products;
◆ Ground protection
When there is no grounding wire or the grounding is not good, the instrument will automatically prompt with Chinese characters. With short circuit protection circuit, oil cup short circuit or high voltage output short circuit protection;
◆ Empty cup automatic calibration
Under the power frequency of 2KV, the dielectric loss of the empty cup measured is less than 0.005%, and the capacitance value is 60PF±2 PF, which guarantees the accuracy of the measurement.
voltage |
AC 220V±10%
|
Power frequency |
50Hz/60Hz ±1%
|
Measuring range | Electric capacity: 5pF~200pF |
Relative permittivity: 1.000~30.000 | |
Dielectric loss factor: 0.00001~100 | |
DC resistivity: 2.5 MΩm~20 TΩm | |
measurement accuracy | Electric capacity: ±(1% reading+0.5pF) |
Relative permittivity: ±1% of reading | |
Dielectric loss factor: ±(1% reading+0.0001) | |
DC resistivity: ±10% of reading | |
Resolution | Electric capacity: 0.01pF |
Relative permittivity: 0.001 | |
Dielectric loss factor: 0.00001 | |
Temperature range |
0 ~125℃
|
Temperature measurement error |
±0.5℃
|
AC test voltage | 500~2200V Continuously adjustable, frequency 50Hz |
DC test voltage | 0~500V Continuously adjustable |
Power consumption |
100W
|
Dimensions (mm) |
500*360*420
|
gross weight |
22kg
|
Conditions of Use | Ambient temperature: 0℃~40℃ |
Relative humidity: <75% |
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