IEC 60247 INSULATION OIL DIELECTRIC LOSS AND RESISTIVITY TESTER

Introduction Insulation Oil Dielectric Loss And Resistivity Tester

Insulation oil dielectric loss conductivity tester is used for insulating oil and other liquid insulating media dielectric loss angle and Volume resistivity test of the integrated structure of high precision instruments. It fully complies with GB/T 5654-2007 national standard and DL/T421 power standard.
DL/T421 power standard; the internal integration of dielectric loss oil cup, temperature controller, temperature sensor, dielectric loss test bridge, AC test power supply, standard capacitor, high resistance tester, etc.
test power supply, standard capacitor, high resistance meter, DC high voltage source and other major components. The heating part adopts the most advanced high frequency induction heating method.
The heating part adopts the most advanced high frequency induction heating method, which has the advantages of non-contact between oil cup and heating body, uniform heating, fast speed and convenient control.
Convenient and other advantages. AC test power supply adopts AC-DC-AC conversion method, effectively avoiding the fluctuation of utility voltage and frequency on the dielectric
Even if the generator is generating electricity, the instrument can also operate correctly. The internal standard capacitor is SF6
gas-filled three-pole capacitor, the capacitor's dielectric loss and capacitance are not affected by ambient temperature and humidity, ensuring the instrument's consistency in accuracy after a long period of use.
This ensures that the accuracy of the instrument remains consistent after a long period of use.
The instrument is equipped with a large screen (320 × 240) with touch screen display, and the internal digital technology, all intelligent automatic measurement, and multiple modes of measurement.
(320 × 240) touch screen display, full Chinese menu, each step has a Chinese prompt, test results can be printed out.
The operator does not need professional training to be able to use it skillfully.

Characteristic 

(1) The oil cup adopts the three-electrode structure conforming to the national standard GB/T5654-20077/IEC 60247, with the inter-pole spacing of 2mm, which can eliminate the influence of stray capacitance and diarrhea 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 and convenient control, 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 capacitor's dielectric loss and capacity are not affected by ambient temperature and humidity, so that the accuracy of the instrument is still guaranteed after a long time of use.
(4) AC test power supply adopts AC-DC-AC conversion method, effectively avoiding the influence of utility voltage and frequency fluctuation on the accuracy of dielectric testing, even if the generator generates electricity, the instrument can also operate correctly.
(5) Perfect protection function. When there is over-voltage, over-current, high-voltage short circuit, the instrument can quickly cut off the high voltage and issue a warning message. When the temperature sensor fails or is not connected, a warning message is issued.
There is a temperature-limiting relay in the medium-frequency induction heating furnace. When the temperature exceeds 120 degrees, the relay is released and the heating stops.
(6) Easy setting of test parameters. Temperature setting range 0～120℃, AC voltage setting range
500 ~ 2200V, DC voltage setting range of 300 ~ 500V.
(7) The use of large screen LCD display, with backlight, clear display. Friendly human-machine interface, just follow the Chinese menu prompts, input commands, the instrument can automatically carry out the test. And automatically store and print test results.
(8) Real-time clock, test date and time can be saved, displayed and printed with the test results.
(9) Empty electrode cup calibration function. Measure the electric capacity 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 capacitance and DC resistivity.

Technical parameters

he main technical parameters of the oil cup

(1) Distance between high and low pressure 2mm
(2) Empty cup electric capacity 60±2PF
(3) The maximum test voltage industrial frequency 2000V
(4) Empty cup dielectric loss tgδ＜1×10-4
(5) Liquid capacity about 40ml
(6) Electrode material stainless steel
(7) Volume 70mm(D)×120mm(H)