Electrical test device for simulating winding of large turbo-generator stator

A steam turbine generator and electrical test technology, applied in the direction of electrical winding testing, measuring devices, measuring electricity, etc., can solve problems such as difficulty in realization, and achieve the effects of ensuring accuracy, ensuring structural accuracy, and ensuring uniformity

Inactive Publication Date: 2018-11-13
HARBIN ELECTRIC MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the electrical test device for the stator simulation winding of a large turbogenerator needs to comprehensively consider structural, electrical, observation and other issues, which is very difficult to implement

Method used

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  • Electrical test device for simulating winding of large turbo-generator stator
  • Electrical test device for simulating winding of large turbo-generator stator
  • Electrical test device for simulating winding of large turbo-generator stator

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Experimental program
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Embodiment Construction

[0024] The electrical performance of the simulated winding of the stator of the turbogenerator is the key element of the winding structure and the stability of the unit operation. After rigorous drawing practice and theoretical derivation, the inventors accurately established the slot fixing device and terminal of the simulated winding of the turbogenerator stator. Internal fixtures, the specific structure and mutual relationship of these devices are clarified for the first time. The specific implementation method is as follows:

[0025] The basic parameters of the model include: the radius of the inner circle of the groove R 1 , end inner circle radius R 2 , angle between grooves α, groove angle end corner Groove width w 1 , slot height s 1 , the number of slots n, the bottom height of the inner circle of the slot h 0 , end and groove h 0 Point corresponds to position height h 1 , height h of the lowest point in the end slot 2 ;

[0026] like image 3 As shown, a...

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Abstract

The invention relates to an electrical test device for simulating winding of a large turbo-generator stator. The test device is capable of efficiently bearing the simulating winding of the large turbo-generator stator, the accurate size, stable structure and appropriate angle are guaranteed and the safety operation of stator simulating winding high voltage electrical test is ensured. The test device is provided with a slot part fixing device and an end part fixing device of turbo-generator stator simulating winding, the specific structure and relationship between the fixing devices is determined for the first time. The test device is practical in structure, efficient in method, easy to design, process and mold, the device relates to the effective establishment of turbo-generator stator simulating winding electrical test integrated unit, which lays a good foundation for further research on the electrical performance of winding.

Description

technical field [0001] The invention relates to an electrical test device for simulating winding of a large steam turbine generator stator. Background technique [0002] For the stator windings of large turbogenerators, during the corona test and withstand voltage test of the whole machine, corona discharge and flashover breakdown often occur, which seriously affect the test and real machine operation. The electrical test of stator winding includes corona test, withstand voltage test, leakage current test, dielectric loss and partial discharge test of the whole machine, etc. With the development of winding electrical detection technology, visual detection technology is more and more widely applied to winding corona detection test In , higher requirements are placed on the corona inception voltage level of the winding. [0003] With the increase of the rated capacity and rated voltage of the turbogenerator, the design structure of the unit is becoming more and more compact, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/06
CPCG01R31/72
Inventor 孙永鑫潘延明施伟利满宇光刘洪伟冯超张洋王韧
Owner HARBIN ELECTRIC MASCH CO LTD
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