Switchgear spring operating mechanism device fault diagnosis method and device

An operating mechanism and switchgear technology, applied in circuit breaker testing, structured data retrieval, database design/maintenance, etc., can solve the problems of operating mechanism failure types, low accuracy of determination results, etc., to improve accuracy , the effect of improving quality

Inactive Publication Date: 2019-06-25
PINGGAO GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method and device for fault diagnosis of the switchgear spring operating mechanism, which is used to solve the problem of determining the faul

Method used

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  • Switchgear spring operating mechanism device fault diagnosis method and device
  • Switchgear spring operating mechanism device fault diagnosis method and device
  • Switchgear spring operating mechanism device fault diagnosis method and device

Examples

Experimental program
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Embodiment 1

[0045] This embodiment provides a fault diagnosis device for the spring operating mechanism of the switchgear, which is used to judge whether the operating mechanism of the switchgear is faulty according to the current signal of the opening and closing coil and the stroke signal of the iron core, so as to improve the operation accuracy of the switchgear. Accuracy of institutional fault diagnosis.

[0046] The switchgear spring operating mechanism fault diagnosis device provided in this embodiment includes a current detection module for detecting the current signal of the opening and closing coil during the opening and closing operation of the operating mechanism, and an iron core for detecting the travel signal of the iron core. Core stroke detection module and data processing module; the data processing module is connected with the current detection module and the iron core stroke detection module, receives the current signal of the opening and closing coil of the operating me...

Embodiment 2

[0079] This embodiment provides a fault diagnosis device for a switchgear spring operating mechanism, which includes a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, it implements the above-mentioned device The fault diagnosis method of the switchgear spring operating mechanism implemented by the data processing module in Example 1.

[0080] Method example:

[0081] This embodiment provides a fault diagnosis method for a switchgear spring operating mechanism, which is the same as the fault diagnosis method for a switchgear spring operating mechanism executed by the data processing module in Embodiment 1 of the above device.

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Abstract

The invention provides a switchgear spring operating mechanism device fault diagnosis method and device. The fault diagnosis method includes the following steps that: switching-off and switching-on coil current signals and core stroke signals during the switching-off and switching-on operation process of an operating mechanism are detected; analysis processing is performed on the obtained switching-off and switching-on coil current signals and core stroke signals, so that relevant characteristic data are obtained; the obtained characteristic data are compared with a data model library, so thatwhether the operating mechanism is faulty and the fault type of the operating mechanism can be known through diagnosis, wherein the data model library includes a normal state data model and an abnormal state data model which respectively include the characteristic data of the operating mechanism under a normal state and an abnormal state which are corresponding to the switching-off and switching-on coil current signals and the core stroke signals. With the switchgear spring operating mechanism device fault diagnosis method and device of the invention adopted, the problem of low accuracy of adetermined result which is caucused a condition that only switching-off and switching-on coil current signals are adopted to determine the fault type of the operating mechanism of a switchgear in theprior art can be solved.

Description

technical field [0001] The invention belongs to the technical field of switchgear control, and in particular relates to a fault diagnosis method and device for a spring operating mechanism of a switchgear. Background technique [0002] The rejection, refusal and malfunction of high-voltage switchgear will bring huge losses to the power system. According to the survey, the failure of the operating mechanism is the main reason for the abnormality of the high-voltage switchgear. Therefore, improving the reliability of the operating mechanism is crucial to ensuring the high-voltage The reliable operation of switchgear is of great significance. [0003] At present, most of the research on the operating state monitoring and fault diagnosis of the spring operating mechanism is limited to the theoretical analysis level. Only a few have realized the monitoring of the change of the induced current in the electromagnet during the movement of the spring mechanism, but no comparative Re...

Claims

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Application Information

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IPC IPC(8): G01R31/327G06F17/50G06F16/21
Inventor 张文涛张一茗王子驰宋亚凯李少华高群伟李得祥贾娜张琳
Owner PINGGAO GRP
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