Partial discharge detection system and partial discharge identification method for high voltage power equipment

The invention provides a partial discharge detection system and a partial discharge identification method for high voltage power equipment. The structure of the partial discharge detection system is that each HFCT (High Frequency Current Transformer) is mounted on a high voltage cable grounding wire...

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Bibliographic Details
Main Authors FAN WENHAN, PENG XIAOSHENG
Format Patent
LanguageChinese
English
Published 31.05.2017
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention provides a partial discharge detection system and a partial discharge identification method for high voltage power equipment. The structure of the partial discharge detection system is that each HFCT (High Frequency Current Transformer) is mounted on a high voltage cable grounding wire; a transient electric wave sensor TEV is mounted on the outer wall of a switch cabinet; three HFCTs are respectively connected with a high-pass filter and a broadband gain amplifier through a BNC coaxial cable in sequence, and are connected to previous three channels of a data acquisition unit; one TEV is directly connected to a fourth channel of the data acquisition unit through another BNC coaxial cable; a phase signal acquisition unit is mounted on a high voltage cable and is connected with a low-pass filter and an external triggering interface of the data acquisition unit in sequence through another BNC coaxial cable. The partial discharge identification method comprises an identification method for partial di
Bibliography:Application Number: CN201611235481