Method and apparatus for partial discharge detection of high-voltage electrical power equipment with hardware anti-interference utilization
A high-voltage power equipment, partial discharge detection technology, applied in the direction of testing dielectric strength, etc., can solve problems such as inability to effectively suppress various interference, and achieve the effect of fast noise filtering
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[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0015] like figure 1 As shown, the method for detecting the partial discharge of high-voltage power equipment of the present invention is as follows: two broadband high-frequency sensors are synchronously set on the high-voltage power equipment under test, and one main broadband high-frequency sensor is sleeved on the ground wire of the high-voltage power equipment. Or the grounding equipment is used to couple the partial discharge signal containing background noise on the high-voltage power equipment, and another secondary broadband high-frequency sensor is located in the same location but isolated from the grounding wire of the high-voltage power equipment to couple the noise generated by the background electromagnetic interference on site. Record the spectrograms (or frequency graphs) of the two broadband high-frequency signals at the same time; and co...
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