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Device and method for detecting complete turn-on of high-voltage isolating switch

A high-voltage isolating switch and detection device technology, applied in circuit breaker testing and other directions, can solve problems such as low accuracy and low efficiency, and achieve the effects of improving accuracy, ensuring safety, and eliminating misjudgment.

Inactive Publication Date: 2013-01-23
XJ ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a detection device and method for the high-voltage isolating switch to be closed, so as to solve the problems of low accuracy and low efficiency of the existing detection methods

Method used

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  • Device and method for detecting complete turn-on of high-voltage isolating switch
  • Device and method for detecting complete turn-on of high-voltage isolating switch
  • Device and method for detecting complete turn-on of high-voltage isolating switch

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Device embodiment

[0027] Such as figure 1 As shown, the detection device includes an optical fiber sensor installed on the moving contact piece or the static contact rod; the signal output end of the optical fiber sensor is connected to the knife switch in-position detection unit through an optical fiber signal demodulation, and the knife switch in-position monitoring unit is installed on the switch set on site In the intelligent component cabinet, the knife switch position monitoring unit is connected to the process layer equipment, and the process layer equipment is connected to the data center of the station control layer, namely figure 1 Centralized information platform. figure 1 The system shown enables automatic monitoring of disconnectors.

[0028] method embodiment

[0029] 1) After converting the sampling signal of the fiber optic sensor...

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Abstract

The invention relates to a device and a method for detecting complete turn-on of a high-voltage isolating switch. an optical fiber sensor is arranged on a movable contact sheet or a stationary contact rod, a sampling signal of the optical fiber sensor is converted into an electric signal, the electric signal is transmitted to a knife switch completeness detection unit, the knife switch completeness detection unit analyzes the received electric signal and compares the processed electric signal with a set value, if the processed electric signal is greater than or equal to the set value, the complete turn-on is determined, and if the processed electric signal is smaller than the set value, incomplete turn-on is determined. By the invention, the judgment accuracy of the complete turn-on of the high-voltage isolating switch and the operating reliability of the complete turn-on of high-voltage isolating switch equipment are improved, and the phenomenon of misjudgment caused by human subjective factors is avoided.

Description

technical field [0001] The invention relates to the field of high-voltage isolating switches in substations, in particular to a detection device and a method for detecting that a high-voltage isolating switch is closed. Background technique [0002] The high-voltage isolating switch in the substation is an important switching device in the electrical system of the power plant and the substation, and it needs to be used in conjunction with the high-voltage circuit breaker. Its main function is to ensure the safety of high-voltage electrical appliances and devices during maintenance work, and to isolate voltage. It cannot be used to cut off, input load current and break short-circuit current. It can only be used for certain switching operations that do not generate strong arcs. [0003] Whether the high-voltage isolating switch knife is closed in place determines to a large extent whether the high-voltage isolating switch equipment can operate normally. However, high-voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327
Inventor 李刚杨超周丽娟卢声于翠欣
Owner XJ ELECTRIC
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