Procedure A: the partial discharge test voltages are reached while decreasing the voltage after the power frequency withstand test.
Procedure B: the partial discharge test is performed after the power-frequency withstand test. The applied voltage
is raised to 80 % of the power-frequency withstand voltage, maintained for not less than 60 s, and then reduced without interruption to the specified partial discharge test voltages.
The partial discharge test system made by huayi electric power technology has the below features.
① A new generation of industrial embedded PC, using high-performance hardware and software control; Touch screen operation mode.
② The console adopts automatic and manual control in two ways, and the two functions are independently managed at different levels without interfering with each other;
③ All English text interface, simple and clear operation, wide application;
④ All test parameters of the test system can be set arbitrarily according to requirements, the operation is simple and clear, the test speed is smooth, and the display data is clear and intuitive;
⑤ All test parameters can be set in advance, which can achieve a series of functions of accurate memory, storage and reset of high voltage discharge and breakdown voltage; Automatic scanning time setting, automatic storage of the aging process of time, voltage, current and other detailed records, convenient for users to view;
⑥ The manual/automatic control of the test system is equipped with a cumulative timing function, and can be independently started, paused and cleared; The combination of hard and software anti-jamming technology has stable performance and strong anti-jamming.
① A new generation of industrial embedded PC, using high-performance hardware and software control; Touch screen operation mode.
② The console adopts automatic and manual control in two ways, and the two functions are independently managed at different levels without interfering with each other;
③ All English text interface, simple and clear operation, wide application;
④ All test parameters of the test system can be set arbitrarily according to requirements, the operation is simple and clear, the test speed is smooth, and the display data is clear and intuitive;
⑤ All test parameters can be set in advance, which can achieve a series of functions of accurate memory, storage and reset of high voltage discharge and breakdown voltage; Automatic scanning time setting, automatic storage of the aging process of time, voltage, current and other detailed records, convenient for users to view;
⑥ The manual/automatic control of the test system is equipped with a cumulative timing function, and can be independently started, paused and cleared; The combination of hard and software anti-jamming technology has stable performance and strong anti-jamming.