What is the basic working principle of transformer oil dielectric loss tester? transformer oil dielectric loss tester is a transformer manufacturer, power plant, substation and other field or laboratory test high-voltage power equipment dielectric loss value of high-precision test instruments. The transformer oil dielectric loss tester is a complete integral structure with a series of high stability standard capacitors placed inside. This article mainly provides a comprehensive and meticulous analysis of the working principle of transformer oil dielectric loss tester.
The working principle of transformer oil dielectric loss tester is that the inverter generates a high voltage source through the instruction, and the transformer is boosted and passed the test under test. The specific steps are as follows:
1. Heating
transformer oil dielectric loss tester adopts high-frequency induction furnace heating, and the temperature-controlled CPU issues a heating command through manual operation after starting, and the system extracts the temperature average of the internal temperature sensor, and increases the power to save time when the temperature is lower; When the temperature rises to a predetermined temperature, reduce the power. This heating technology facilitates uniform heating.
2. Temperature control
When the measured temperature of the transformer oil dielectric loss tester is about to reach the preset temperature, the control is heated by low power, and the control duty cycle is analyzed through scientific calculation and analysis, so that the temperature is controlled within the expected range.
3. Mediator loss measurement
The test voltage is simultaneously added to the internal capacitor of the transformer oil dielectric loss tester and the boosting pole of the oil cup, and after the control and synchronous sampling of different signals, the digital signal is sent to the digital signal processor, and the parameters are calculated and sent to the main control CPU.
4. Volume resistivity measurement
The basic working principle of the transformer oil dielectric loss tester is how the DC high voltage test voltage is added to the oil cup boosting pole, through the test circuit, the current signal is generated, the test circuit is amplified and then the current signal is sampled and tracked, the digital signal is sent to the digital signal processing, and then it is a complex operation, and the result is sent to the main control CPU.
