Method for discharge fault diagnosis of transformer
A fault diagnosis and transformer technology, applied in the direction of testing the dielectric strength, etc., can solve the problems that the power grid staff cannot accurately obtain the operating status and fault parameters of the power transformer, cannot cooperate and cooperate, and self-diagnosis is impossible to talk about, so as to achieve simple implementation , improve accuracy, and overcome limitations
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[0017] In order to facilitate a further understanding of the method and the achieved effects of the present invention, a detailed description is given below with reference to the accompanying drawings and preferred embodiments.
[0018] figure 1 It is the principle block diagram of the transformer discharge fault diagnosis in the present invention, where T is the high-voltage test transformer, R is the protection resistance, 6 is the analog discharge source, Ck is the coupling capacitor without partial discharge, Z is the detection impedance, and the antenna is broadband ultra-high Frequency antenna.
[0019] When conducting the experiment, it is necessary to know the type of discharge fault. In this experiment, the simulated discharge source 6 is self-made, and there are four types of faults: floating discharge, tip discharge, creeping discharge and air gap discharge.
[0020] During the experiment of each specific failure mode, the manufactured simulated discharge source is fixed i...
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