Non-contact live detection device and method for rigid switch-off and switch-on of circuit breaker

A non-contact, live detection technology, applied in the direction of circuit breaker testing, measuring devices, testing of mechanical components, etc., can solve the problems of inaccurate detection, affecting the safe operation of the power grid, and high requirements for operators, so as to achieve low technical dependence , Does not affect the reliability of power supply, the effect of simple operation

Inactive Publication Date: 2019-06-14
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a device and method based on non-contact detection of just-opening and just-closing of a circuit breaker to solve the problem of power-off detection required for just-opening and just-closing detection of a circuit breaker, and the detection is inaccurate, affecting the safe operation of the power grid and the impact on the power grid. The problem of high operator requirements

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  • Non-contact live detection device and method for rigid switch-off and switch-on of circuit breaker
  • Non-contact live detection device and method for rigid switch-off and switch-on of circuit breaker
  • Non-contact live detection device and method for rigid switch-off and switch-on of circuit breaker

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Embodiment Construction

[0031] First, see figure 1 and figure 2 , the application provides a device based on non-contact live detection circuit breaker just opening and closing, the device includes a camera 4, a marker 5, a vibration sensor 2, a vibration detection unit 1 and a data processing terminal 3; The markers 5 are respectively installed on the insulating pull rod 6 and the opening and closing indicator 7 of the circuit breaker, and the vibration detection unit 1 includes a data acquisition unit 11 and a circuit breaker action control unit 12;

[0032] The circuit breaker action control unit 12 is used to control the opening or closing action of the circuit breaker;

[0033] The vibration sensor 2 is used to obtain the vibration data of the circuit breaker;

[0034] The camera 4 unit is used to acquire moving images of the markers 5 on the insulating pull rod 6 and the opening and closing indicator 7;

[0035] The data collection unit 11 is used to collect the vibration data of the circui...

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Abstract

The application provides a non-contact live detection device and method for rigid switch-off and switch-on of a circuit breaker. The method comprises the following steps: determining a rigid switch-off point and a rigid switch-on point by using the vibration amplitude in the switch-off or switch-on action process of the circuit breaker; acquiring the motion distance of a marker by using a camera;and finally obtaining the motion speeds of rigid switch-off and rigid switch-on. Thus, live testing of the rigid switch-off and switch-on points can be realized, and live detection of the action characteristics of the circuit breaker is realized through combination with a high-speed photograph technology. Moreover, the installation risk is avoided; the power supply reliability is not influenced; rapid wiring and simple operation are achieved; and the technical dependency on operating personnel is low.

Description

technical field [0001] The present application relates to the technical field of electric power detection, and in particular to a device and method based on a non-contact live detection circuit breaker just opening and just closing. Background technique [0002] The circuit breaker is a primary device that plays an important protective role in the operation of the power grid. Its main function is to protect and control the safe and stable operation of the entire power system. With the continuous increase of the voltage level and the development of the economy and society, the requirements for the reliability of the power supply are also getting higher and higher, so the state detection technology of the circuit breaker is also developing rapidly. [0003] At present, the main technology in the field of circuit breaker state detection is still a contact detection scheme based on power failure. Carrying out the following problems in the method that contact detection circuit b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G01M13/00
Inventor 龚泽威一马宏明杨明昆程志万彭兆裕何顺邱鹏峰
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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