Method for diagnosing electrification test data of resistive current of zinc oxide arrester
A technology of resistive current and test data, applied in the direction of measuring current/voltage, only measuring current, instruments, etc., can solve the difference between the resistance current test value and the actual value of zinc oxide arrester live test, and can not analyze the change of resistive current , judgment, inability to judge the quality of arrester performance and other issues
Active Publication Date: 2019-02-22
EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID
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[0005] The purpose of the invention of the present invention is to: in view of the above existing problems, provide a zinc oxide arrester resistive current live test data diagnosis method; solve the problem that there is a large deviation between the zinc oxide arrester live test resistive current test value and the actual value, and cannot Judging the performance of the arrester is a technical problem that cannot be analyzed and judged by comparing the change of the resistive current
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[0048] Below in conjunction with accompanying drawing, the present invention is described in detail.
[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0050] 1. The full current and resistive current test (on-site live test) under the operating voltage of the zinc oxide arrester is an important test item for the arrester equipment. When the arrester is damp and deteriorated, its resistive current will increase significantly, and the increasing trend will become faster and faster. The surge arrester live test also has the advantage of being able to reflect the actual operation of the equipment without shutting down the equipment. Effectively ca...
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The invention belonging to the field of electric power detection discloses a method for diagnosing electrification test data of a resistive current of a zinc oxide arrester. The electrified testing resistive current correction method of the lightning arrester is studied. On the basis of the all-current and resistive current testing data under the out-of-factory test item-continuous running voltageof the lightning arrester, a capacitive coupling interference current vector parameter is calculated according to field test data; a resistive current is corrected by the capacitive coupling interference current vector parameter; and then an actual resistive current peak of the lightning arrester under the running voltage is deduced finally. Therefore, quantified indicators are provided and are compared with an initial value for analysis; and three-phase comparison also can be carried out, so that the effective analysis and diagnosis of the electrified testing data of the lightning arrester are realized. In actual application, an electrified testing diagnosis database of the lightning arrester is established; the electrified testing resistive current correction method of the lightning arrester is fused into the database; and the testing data of the lightning arrester are displayed visually at the database, so that the technical staff can carry out data analysis and determination conveniently.
Description
technical field [0001] The invention relates to the field of electric power detection, in particular to the field of resistive current measurement of lightning arresters. Background technique [0002] The full current and resistive current test (on-site live test) of the zinc oxide arrester under the on-site operating voltage is an important test item for the arrester equipment. When the arrester is damp and deteriorated, its resistive current will increase significantly, and the increasing trend will become faster and faster. The surge arrester live test also has the advantage of being able to reflect the actual operation of the equipment without shutting down the equipment. Effectively carrying out live tests of arresters and making correct judgments based on test data is of great significance for judging the performance of arresters, grasping the health status of equipment, and improving the quality of equipment operation. Various regulations clearly stipulate: when mea...
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IPC IPC(8): G01R31/00G01R19/00
CPCG01R19/0092G01R31/00
Inventor 罗赞琛杨政钟宏乐曾星宏叶波覃言陈光林潜郭铭桂谭卓俊
Owner EXTRA HIGH VOLTAGE POWER TRANSMISSION NANJING OF CHINA SOUTHERN POWER GRID