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Stator core fault detection auxiliary device and detection method

A fault detection and stator core technology, applied in measuring devices, mechanical measuring devices, and mechanical devices, etc., can solve problems such as inability to complete, and achieve the effects of accurate and reliable data, easy implementation, and saving detection time.

Inactive Publication Date: 2016-09-28
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is necessary to know whether there are surface faults and deep faults in the stator core under such conditions, the existing ELCID detection device will not be able to complete this task

Method used

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  • Stator core fault detection auxiliary device and detection method
  • Stator core fault detection auxiliary device and detection method
  • Stator core fault detection auxiliary device and detection method

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] Please also refer to Figure 1 to Figure 3 ,in figure 1 It is the front view of the auxiliary device for stator core fault detection in the present invention; figure 2 for figure 1 top view of image 3 for figure 1 Schematic diagram of the structure of the slider, guide rail and Chattock magnetometer in .

[0021] The auxiliary device for stator core fault detection includes a guide rail 10 that can be inserted between the generator stator and the rotor, a slider 20, a first stay rope 30, a second stay rope 40, a fixed pulley 50, an encoder 60 and Chattock magnetometer 70, the slider ...

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PUM

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Abstract

The invention relates to a stator core fault detection auxiliary device, and the device comprises a guide rail capable of stretching between the stator and rotor of a generator, a sliding block, a first stay cord, a second stay cord, a fixed pulley, a coder, and a Chattock magnetic potentiometer. The sliding block is slidingly disposed on the guide rail, and the first and second stay cords are respectively connected to two ends of the sliding block. The bottom of the fixed pulley is provided with a substrate, and the central axis of the fixed pulley is provided with a rotating shaft. The fixed pulley is disposed on the substrate through a support. The fixed pulley is rotatingly disposed on the support through the rotating shaft. The rotating shaft extends to the outside of the fixed pulley, and the top of the fixed pulley and the sliding block are located on the same horizontal line. One end, far from the sliding block, of the first stay cord is disposed on the fixed pulley in a winding manner. The coder is disposed on the rotating shaft outside the fixed pulley, and the Chattock magnetic potentiometer is disposed on the sliding block.

Description

technical field [0001] The invention relates to the technical field of stator core fault electromagnetic detection equipment, in particular to an auxiliary device for stator core fault detection and a detection method thereof. Background technique [0002] The stator core of the generator is an important part of the generator structure. It plays an important role in providing a magnetic circuit, supporting the generator as a whole, and fixing the stator winding coil. Whether the generator stator core insulation is good or not is one of the important factors affecting the normal operation of the generator. When the insulation between the silicon steel sheets of the stator core is damaged, an eddy current will be generated at the damaged part of the silicon steel sheet insulation. The eddy current will flow from the fault along the surface of the silicon steel sheet, and form a closed loop with the positioning rib or the core screw, causing the stator The core is hot inside. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01B5/02
CPCG01R31/1227G01B5/02
Inventor 张俊雄鲁叶茂盛明珺戴申华陈延云陶煜夏明圣赵淼
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH