A performance test method of a high-voltage switch characteristic test system
A technology of characteristic testing and testing methods, applied in measuring devices, measuring electrical variables, instruments, etc., can solve problems such as economic and social losses, power grid accidents, and expansion accidents
Active Publication Date: 2021-04-23
ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER +1
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Problems solved by technology
There are a large number of high-voltage switches in the power grid, which play the role of control and protection. When they fail, they will directly cause power grid accidents or further expand the accident, causing considerable economic and social losses.
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[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] The high-voltage switch characteristic detection system is mainly used to measure the different phase time of the switch and the amplitude of the radio frequency pulse signal. The main characterization parameters of its performance are the accuracy of the pulse interval test and the consistency of the amplitude test.
[0025] In order to test the accuracy of the pulse interval test and the consistency of the amplitude test of the test system, the present invention uses a nanosecond-level steep pulse generator in conjunction with a monopole probe antenna to perform a performance test on the developed test system prototype. The nanosecond level steep pulse generator has the function of adjusting pulse transmission frequency and pulse amplitude, the frequency covers 100Hz-200Hz, and the pulse amplitude is 100V.
[0026] Pu...
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The invention discloses a performance testing method of a high-voltage switch characteristic testing system. Since the high-voltage switch characteristic testing system is mainly used to measure the different period time of the switch and the amplitude of the radio frequency pulse signal, the main characteristic parameter of its performance is the accuracy of the pulse interval test. Consistency of degree and amplitude test. In order to test the high-voltage switching characteristics of the system, test the performance of the system, test the accuracy of the pulse interval test and the consistency of the amplitude test, and use a nanosecond-level steep pulse generator with a monopole probe antenna to perform performance tests on the prototype of the detection system . The test method of the present invention is simple to prepare, and can be prepared to reflect the performance of the test system, thereby ensuring the effectiveness of the detection of the working state of the high-voltage switch and ensuring the safe and reliable operation of the power grid.
Description
technical field [0001] The invention relates to the field of on-line detection of electrical equipment, in particular to a performance testing method of a high-voltage switch characteristic testing system. Background technique [0002] In recent years, the power system has put forward higher and higher requirements for the reliability and economy of power supply. The safe operation of high-voltage power transmission and transformation equipment has become an important factor affecting the safe, stable and economical operation of the power system. There are a large number of high-voltage switches in the power grid, which play the role of control and protection. When they fail, they will directly cause a grid accident or further expand the accident, causing considerable economic and social losses. How to effectively detect the working status of the high-voltage switch, discover the early defects of the switch in time, deal with the defective parts in advance, and prevent the ...
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IPC IPC(8): G01R35/00
CPCG01R35/00
Inventor 俞华刘宏李国栋刘致诚牛曙李志强陈功
Owner ELECTRIC POWER RES INST STATE GRID SHANXI ELECTRIC POWER