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Insulation Oil Dielectric Loss and Resistivity Tester
Application and Features
(1) The oil cup adopts the three-electrode structure conforming to the national standard GB/T5654-2007, and the electrode spacing is 2mm, which can eliminate the influence of stray capacitance and leakage on the dielectric loss test results.
(2) The instrument adopts medium frequency induction heating and PID temperature control algorithm. The heating method has the advantages of non-contact between the oil cup and the heating body, uniform heating, fast speed, convenient control, etc., so that the temperature is strictly controlled within the preset temperature error range.
(3) The internal standard capacitor is SF6 gas-filled three-electrode capacitor, the dielectric loss and capacitance of the capacitor are not affected by ambient temperature, humidity, etc., so that the accuracy of the instrument is still guaranteed after long-term use.
(4) AC test power supply adopts AC-DC-AC conversion mode, effectively avoiding the impact of mains voltage and frequency fluctuations on the accuracy of dielectric loss test, even if the generator generation, the instrument can operate correctly.
(5) Perfect protection function. When there is overvoltage, overcurrent, high voltage short circuit, the instrument can quickly cut off the high voltage, and send a warning message. A warning message is issued when the temperature sensor fails or is not connected.
A limited temperature relay is provided in the medium frequency induction heating furnace. When the temperature exceeds 120 degrees, the relay is released and the heating stops.
(6) Convenient setting of test parameters. The temperature ranges from 0 to 120 ° C and the AC voltage ranges
The value ranges from 500 to 2200V. The DC voltage ranges from 300 to 500V.
(7) Large-screen LCD display with backlight and clear display. Man-machine interface is friendly, just follow the Chinese menu prompts, input commands, the instrument can automatically test. And automatically store and print test results.
(8) With real-time clock, test date and time can be saved, displayed and printed with test results.
(9) Empty electrode cup calibration function. Measure the capacitance and dielectric loss factor of the empty electrode cup to judge the cleaning and assembly condition of the empty electrode cup. Calibration data is automatically saved to facilitate accurate calculation of relative permittivity and DC resistivity.
Technical Parameters
Voltage Supply: AC 220V±10%
Supply 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
Measure the Precision: Electric Capacity ±(1%Reading+0.5pF)
Relative Permittivity：±1% Reading
Dielectric Loss Factor:±(1%Reading+0.0001)
Dc Resistivity:±10%Reading
Resolution;Electric Capacity 0.01pF
Relative Permittivity:0.001
Dielectric Loss Factor:0.00001
Temperature Range:0～120℃
Temperature Measurement Error: ±0.5℃
AC Test Voltage:500～2200V adjustable continuously, frequency
DC Test Voltage: 300～500V adjustable continuously
Power Consumption:100W
Overall Dimensions:500×360×420
Total Weight:22Kg
Insulation Oil Dielectric Loss and Resistivity Tester
Application and Features
(1) The oil cup adopts the three-electrode structure conforming to the national standard GB/T5654-2007, and the electrode spacing is 2mm, which can eliminate the influence of stray capacitance and leakage on the dielectric loss test results.
(2) The instrument adopts medium frequency induction heating and PID temperature control algorithm. The heating method has the advantages of non-contact between the oil cup and the heating body, uniform heating, fast speed, convenient control, etc., so that the temperature is strictly controlled within the preset temperature error range.
(3) The internal standard capacitor is SF6 gas-filled three-electrode capacitor, the dielectric loss and capacitance of the capacitor are not affected by ambient temperature, humidity, etc., so that the accuracy of the instrument is still guaranteed after long-term use.
(4) AC test power supply adopts AC-DC-AC conversion mode, effectively avoiding the impact of mains voltage and frequency fluctuations on the accuracy of dielectric loss test, even if the generator generation, the instrument can operate correctly.
(5) Perfect protection function. When there is overvoltage, overcurrent, high voltage short circuit, the instrument can quickly cut off the high voltage, and send a warning message. A warning message is issued when the temperature sensor fails or is not connected.
A limited temperature relay is provided in the medium frequency induction heating furnace. When the temperature exceeds 120 degrees, the relay is released and the heating stops.
(6) Convenient setting of test parameters. The temperature ranges from 0 to 120 ° C and the AC voltage ranges
The value ranges from 500 to 2200V. The DC voltage ranges from 300 to 500V.
(7) Large-screen LCD display with backlight and clear display. Man-machine interface is friendly, just follow the Chinese menu prompts, input commands, the instrument can automatically test. And automatically store and print test results.
(8) With real-time clock, test date and time can be saved, displayed and printed with test results.
(9) Empty electrode cup calibration function. Measure the capacitance and dielectric loss factor of the empty electrode cup to judge the cleaning and assembly condition of the empty electrode cup. Calibration data is automatically saved to facilitate accurate calculation of relative permittivity and DC resistivity.
Technical Parameters
Voltage Supply: AC 220V±10%
Supply 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
Measure the Precision: Electric Capacity ±(1%Reading+0.5pF)
Relative Permittivity：±1% Reading
Dielectric Loss Factor:±(1%Reading+0.0001)
Dc Resistivity:±10%Reading
Resolution;Electric Capacity 0.01pF
Relative Permittivity:0.001
Dielectric Loss Factor:0.00001
Temperature Range:0～120℃
Temperature Measurement Error: ±0.5℃
AC Test Voltage:500～2200V adjustable continuously, frequency
DC Test Voltage: 300～500V adjustable continuously
Power Consumption:100W
Overall Dimensions:500×360×420
Total Weight:22Kg