Partial discharge detection system for alternating current withstand voltage test of high-voltage switchgear

A technology for partial discharge detection and high-voltage switchgear, which is applied in the direction of testing dielectric strength, using acoustic measurement for testing, etc., which can solve the problems of subjectivity and limited test methods, unreliability of test methods, and degradation of equipment insulation performance. Subjectivity and limitations, ensuring equipment safety, and achieving zero-defect operation

Pending Publication Date: 2018-10-12
LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER +1
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current method of AC withstand voltage test for high-voltage switchgear has great subjectivity and limitations, and the test method is not reliable, so as to avoid repeated destructive withstand voltage tests on the internal equipment of the switchgear. To solve the problem of equipment insulation performance degradation, provide a partial discharge detection system for AC withstand voltage test of high-voltage switchgear

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  • Partial discharge detection system for alternating current withstand voltage test of high-voltage switchgear

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Embodiment Construction

[0015] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the partial discharge detection system used in the high-voltage switchgear AC withstand voltage test in this embodiment includes a signal acquisition and processing device 2, a remote intelligent terminal 3 and a wireless control voltage regulator 4; the signal acquisition and processing device 2 includes A plurality of detection sensor groups 1, a signal preprocessing module 21, an ADC processing module 22 and a first wireless transceiver module 23; the remote intelligent terminal 3 includes a second wireless transceiver module 31, a display module 32, a storage module 33, a diagnostic module 34, a processing module 35 and alarm module 36; the wireless control voltage regulator 4 includes a voltage regulator control module 41, a voltage lifting module 42 and a third wireless transceiver module 43; each detection sens...

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Abstract

The invention provides a partial discharge detection system for an alternating current withstand voltage test of a high-voltage switchgear,and belongs to the field of power testing,so as to solve theproblems that the method of the alternating current withstand voltage test of the high-voltage switchgear has great subjectivity and limitation,and the test method is not reliable. The system comprises: each acquisition sensor group is connected with a signal preprocessing module,the signal preprocessing module is sequentially connected with an ADC processing module and a first wireless transceiver module,the first wireless transceiver module is wirelessly connected with the second wireless transceiver module,the second wireless transceiver module is connected with the processing module,the processing module is connected with a display module,the processing module is also connected with a storage module,the processing module is also connected with a diagnosis module,the diagnosis module isconnected with the display module,the processing module is also connected with an alarm module,the processing module is also connected with the second wireless transceiver module,the second wirelesstransceiver module is wirelessly connected with a third wireless transceiver module,and the third wireless transceiver module is connected with a voltage regulator control module and a voltage fluctuation module sequentially.

Description

technical field [0001] The invention relates to the technical field of electric power testing, in particular to a partial discharge detection system used for AC withstand voltage tests of high-voltage switch cabinets. Background technique [0002] High-voltage switchgear is a direct device that supplies power to distribution networks or users, and is widely used in power systems. Because it is directly related to the power supply, the economic loss and social loss caused by the power outage caused by the failure of the high-voltage switchgear are very large. Due to the narrow space, many parts, complex structure and small insulation distance in the high-voltage switchgear, defects are more likely to occur, which brings hidden dangers to the safe operation of the high-voltage switchgear. AC withstand voltage test is the most effective and direct method to identify the insulation strength of electrical equipment. Since the AC withstand voltage test voltage is generally highe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12G01R31/1209
Inventor 翟帅郭永凯林选滑勉董建玲闫福禄曹琼席小军李昊阳赵磊
Owner LINFEN POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER
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