Method and system for judging operating characteristics of disconnecting switch
A technology of isolating switch and operating characteristics, applied in the field of evaluating the operating characteristics of isolating switch equipment, can solve the problems of inability to completely isolate high-voltage electrical equipment, the isolation switch has no arc extinguishing ability, and the threat to the personal safety of operators.
Active Publication Date: 2021-09-03
YUNNAN POWER GRID CO LTD LINCANG POWER SUPPLY BUREAU
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Problems solved by technology
The isolating switch has no arc extinguishing ability. When the isolating switch is not in place during the switching operation, it may not be able to completely isolate the high-voltage electrical equipment, which will pose a threat to the personal safety of the operator.
[0004]
At present, there are more or less partial defects in the evaluation method of the disconnector, such as the detection accuracy of the mechanical evaluation method is not high, and the evaluation method based on the weighted gray target theory has the defect of cumbersome calculation operations
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[0046] The following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0047] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art. "First", "second" and similar words used in this embodiment do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elemen...
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The invention relates to a method and system for judging operating characteristics of a disconnecting switch. The method comprises the steps of: firstly obtaining signals for multiple times by using a position sensor; calculating related parameters of the position sensor and the signals obtained by the position sensor; determining operating offset coordinates of the disconnecting switch according to the calculated related parameters; obtaining the offset angle of the motion of the disconnecting switch according to the offset coordinates; and evaluating the motion performance of the disconnecting switch based on the offset angle. The motion performance of the disconnecting switch can be evaluated visually through the offset angle obtained through calculation.
Description
technical field [0001] The invention belongs to the field of performance evaluation of high-voltage switchgear, and in particular relates to an evaluation method for the action characteristics of isolating switchgear. Background technique [0002] The high-voltage switch is mainly an important device used to break the circuit. It plays the role of isolating the power supply and safely grounding. [0003] High-voltage switchgear includes high-voltage circuit breakers, high-voltage isolating switches, high-voltage load switches and other equipment. High-voltage circuit breakers have perfect arc extinguishing devices, which can better break circuits; The isolating switch consists of a set of static contacts and a set of moving contacts. It is mainly used to isolate the high-voltage power supply, so as to safely overhaul the equipment and lines, and ensure the personal safety of operators. The isolating switch has no arc extinguishing ability. When the isolating switch is not i...
Claims
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IPC IPC(8): G01R31/327G01M13/00
CPCG01R31/3274G01M13/00
Inventor 李如芬戴富宏罗云纪李庆芳严之荣蔺鑫高景林张书忠
Owner YUNNAN POWER GRID CO LTD LINCANG POWER SUPPLY BUREAU