When conducting power frequency withstand voltage tests on electrical equipment, it is necessary to use a non partial discharge power frequency withstand voltage test device, which includes various equipment and instruments, including a voltage regulating console, inflatable non partial discharge test transformer, partial discharge tester, isolation filter transformer, non partial discharge coupling capacitor, non partial discharge protection resistor, etc.
The main function of the voltage control console is to control the output of the inflatable non partial discharge test transformer to a specified high voltage. By adjusting the size and frequency of the voltage, it can meet the requirements of different equipment and test standards.
Partial discharge tester is a specialized instrument used to detect partial discharge in electrical equipment. It can detect weak discharge signals inside electrical equipment and amplify them to display them. After appropriate calibration, the instrument can directly read the discharge amount of discharge pulses, thereby helping engineers judge the quality and safety performance of the equipment.
Isolation filtering transformer can filter out high-frequency interference and electromagnetic radiation in the power supply, improving the accuracy and reliability of the test. It can transform the high-voltage power supply provided by the test transformer into a relatively pure high-voltage power supply device through its self generating function.
Non partial discharge coupling capacitors and non partial discharge protection resistors are two essential devices in partial discharge testing. Non partial discharge coupling capacitors can obtain pulse signals in high-voltage circuits, and the partial discharge instrument detects the local discharge level of the test object through this test signal. Non partial discharge protection resistors are mainly used to protect high-voltage testing equipment and test objects from damage caused by partial discharge.
The characteristics and advantages of the non partial discharge power frequency withstand voltage test device are as follows:
1. The use of epoxy insulation cylinder without partial discharge ensures low impedance voltage and small partial discharge, ensuring the safety and reliability of testing.
2. Adopting intelligent electronic protection devices with high reliability, it can automatically monitor and protect equipment during the testing process, preventing equipment damage caused by overload, short circuit and other faults.
3. By adopting automatic control technology, the degree of intelligence and automation is high, which can achieve automated control and data analysis of the experimental process, improving the efficiency and accuracy of the experiment. Strong anti-interference ability ensures that the test results are not affected by environmental factors.