Laser range extending method and system for testing rigid opening speed and rigid closing speed of high-voltage switch

A high-voltage switch and split-speed technology, which is applied to devices using optical methods, optical instrument testing, and machine/structural component testing, can solve problems such as frequent sensor damage, switch disintegration and explosion, and contact damage. The effect of range measurements

A high-voltage switch and split-speed technology, which is applied to devices using optical methods, optical instrument testing, and machine/structural component testing, can solve problems such as frequent sensor damage, switch disintegration and explosion, and contact damage. The effect of range measurements

CN113671207AInactive Publication Date: 2021-11-19GUIZHOU POWER GRID CO LTD
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  • Laser range extending method and system for testing rigid opening speed and rigid closing speed of high-voltage switch

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Embodiment Construction

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0024] A laser range-extending method for testing the just-off speed and just-on speed of a high-voltage switch of the present invention is used to bias the direction of the laser beam emitted by a semiconductor laser to amplify the range, comprising the steps of:

[0025] Step S1: Set a right-angled triangular prism I on the outgoing light path. The rectangular plane where one of the right-angled sides of the right-angled triangular The rectangular surface of the rectangular surface is placed perpendicular to the direction of the laser beam offset, and the rectangular prism I keeps a certain distance from the light path diffuse reflection receiving port of the sensor,...

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Abstract

The invention discloses a laser range extending method for testing the rigid opening speed and rigid closing speed of a high-voltage switch, and the method solves the problems of high precision and low measurement range of a laser speed measurement sensor, is realized by refitting the range extending method, and can realize large-range measurement while keeping high precision. Meanwhile, the non-contact measurement mode of the original laser speed measurement sensor is kept, the test problem under the condition that the speed measurement directions of the laser sensor and the high-voltage switch are inconsistent is further solved, and a powerful test tool is provided for the high-voltage switch.

Description

technical field [0001] The invention relates to the technical field of power equipment measurement, in particular to a laser range-extending method for testing the just-off speed and just-on speed of a high-voltage switch, and also relates to a system. Background technique [0002] In the power grid, if the just-opening speed and just-closing speed of the high-voltage switch cannot meet the relevant requirements, the high-voltage switch may fail. Fast, easy to cause mechanical failure. If the speed of just closing is too fast, it will easily cause damage to the contacts. If the speed of just closing is too slow, the contacts will be seriously burned. However, existing sensors such as linear resistance speed sensors, rotary resistance sensors, and rotary encoder sensors are often impossible to install As for the switch body, there are also the following disadvantages: 1. It is difficult to fix the connection between the sensor and the moving part of the switch body, or even ...

Claims

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Application Information

Patent Timeline
19 Nov 2021
Publication
CN113671207A
IPC
G01P3/36; G01M11/08
Inventors
文峰; 符玉珊