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Bearing withstand voltage test method and method for inhibiting partial discharge of bearing

A technology for partial discharge and withstand voltage testing, applied in the direction of testing dielectric strength, etc., can solve the problems of poor test effect and high cost, and achieve the effect of reducing test difficulty and simple test operation

Pending Publication Date: 2022-04-12
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method of voltammetry test requires multiple modifications to the bearing, which is costly, and the shaft voltage can only be tested after the bearing has deteriorated to a certain extent due to the shaft voltage, and the test effect is poor.

Method used

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  • Bearing withstand voltage test method and method for inhibiting partial discharge of bearing
  • Bearing withstand voltage test method and method for inhibiting partial discharge of bearing
  • Bearing withstand voltage test method and method for inhibiting partial discharge of bearing

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Embodiment Construction

[0044] The characteristics and exemplary embodiments of various aspects of the application will be described in detail below. In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only intended to explain the present application rather than limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0045] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and d...

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Abstract

The invention discloses a bearing withstand voltage test method and a method for suppressing partial discharge of a bearing. According to the bearing withstand voltage test method, based on a discharge gap structure constructed between a bearing ring and a movable body, under the conditions that a bearing runs and insulating oil in a bearing gap breaks down under the action of first test voltage, electric signals are collected on the bearing ring and the movable body; therefore, the partial discharge is determined according to the collected electric signal, the applied test voltage can be determined as the withstand voltage of the bearing, the test operation is simple, the structure of the bearing does not need to be transformed, and the test difficulty is reduced.

Description

technical field [0001] The application belongs to the technical field of machinery, and in particular relates to a bearing pressure test method and a method for suppressing partial discharge of bearings. Background technique [0002] The shaft voltage is the potential difference between the two ends of the generator shaft, the local shaft and the shaft to ground during the operation of the generator. Shaft voltage is a common electrical phenomenon in the operation of generators, especially for large and high-speed generators. [0003] In the related art, the shaft voltage is generally tested by voltammetry. The method of voltammetry test requires multiple modifications to the bearing, which is costly, and the shaft voltage can only be tested after the bearing has deteriorated to a certain extent due to the shaft voltage, and the test effect is poor. Contents of the invention [0004] The embodiment of the present application provides a bearing pressure test method and a ...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 李术林
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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