Lightning arrester live-line test system and method for voltage and current signal dual-wireless transmission
A voltage and current, wireless transmission technology, applied in the field of arrester detection, can solve the problems of inconvenient replacement of test wiring, insufficient safety distance, low test efficiency, etc.
Pending Publication Date: 2021-03-23
GUANGXI POWER GRID CO LTD NANNING POWER SUPPLY BUREAU
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Problems solved by technology
The two methods are inconvenient when the test interval is transferred and the test wiring is replaced due to the long test line. Especially for live tests such as large-scale substations and transmission line terminal tower arresters, the test efficiency is low.
In addition, for tower arresters, due to the limited working space, it is not convenient to place test instruments, and too long test lines will have operational risks such as insufficient safety distances
Method used
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Embodiment
[0024] refer to figure 1 , figure 1 It is a structural schematic diagram of a surge arrester live test system with dual wireless transmission of voltage and current signals.
[0025] A lightning arrester live test system with dual wireless transmission of voltage and current signals, the system includes a voltage measurement module 101, a current measurement module 102, and a tester host 103; the voltage measurement module 101 is used for voltage testing of the lightning arrester, and the voltage data Transmitted to the tester host 103; the current measurement module 102 is used for the current test of the arrester, and the current data is transmitted to the tester host 103; the tester host 103 is used for receiving current and voltage test data, and the test data is carried out Analyze and judge whether the arrester is degraded.
[0026] The voltage measurement module 101 includes: a voltage acquisition device, a data processor, a wireless modulation transmitter, and a buil...
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The invention discloses a lightning arrester live-line test system and method for voltage and current signal dual-wireless transmission. The system comprises a voltage measurement module, a current measurement module and a tester host. The voltage measurement module is used for testing the voltage of the lightning arrester and transmitting voltage data to the tester host; the current measurement module is used for testing the current of the lightning arrester and transmitting the current data to the tester host; and the tester host is used for receiving the current and voltage test data, analyzing the test data and judging whether the lightning arrester is deteriorated or not. According to the embodiment of the invention, personnel electric shock accidents caused by insufficient safety distance due to overlong current test wires can be prevented, the risk that the test instrument falls off from the tower can be avoided, and the safety of operators and the test instrument is effectivelyguaranteed.
Description
technical field [0001] The invention relates to the field of arrester detection, in particular to a live test system and method for an arrester with double wireless transmission of voltage and current signals. Background technique [0002] Surge arresters are widely used for overvoltage protection of electrical equipment, including various electrical equipment in substations, transmission line towers, and cable terminal towers. The non-gap arrester is a more commonly used type of arrester. The two ends of the non-gap arrester are respectively connected to the high-voltage end and the grounding end of the equipment. After long-term operation voltage, coupled with the influence of the external environment, defects such as deterioration and moisture may occur, and the operating status of the arrester is Good or bad will not only affect its overvoltage protection effect, but its own deterioration and moisture may also cause short-circuit faults in the power system. Therefore, i...
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Login to View More IPC IPC(8): G01R31/00G01R19/25
CPCG01R31/00G01R31/003G01R19/25
Inventor 廖英怀蒋圣超徐兆丹陈荭周闯宋运平范宇宁伍任能陈斌孙全才桂路石瑶钟劲松
Owner GUANGXI POWER GRID CO LTD NANNING POWER SUPPLY BUREAU