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Repair method of spring assemblies in stator core

A technology for spring components and stator cores, which can be used in electric components, electrical components, magnetic circuit static components, etc., and can solve problems such as expansion cracks

Inactive Publication Date: 2015-06-17
SIEMENS ENERGY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known spring assemblies are prone to crack propagation in the welded joint between U-plate and spring rod

Method used

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  • Repair method of spring assemblies in stator core
  • Repair method of spring assemblies in stator core
  • Repair method of spring assemblies in stator core

Examples

Experimental program
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Embodiment Construction

[0023] The following discussion of embodiments of the invention relates to a technique for eliminating the weld between the U-plate and the spring bar, which is merely exemplary in nature and in no way intended to limit the invention or its application or use .

[0024] figure 1 is a cutaway perspective view of a known generator 10 having spring bars 16 mounted between a stator core 12 and a stator frame 14 . The spring bar 16 extends the longitudinal length of the stator core 12 and is attached to the stator core 12 by a mechanical connection 18 . The mechanical connection 18 includes a bracket or key 20 secured to the stator core 12 . A second set of mechanical connections 22 is used to connect the spring bars 16 to the stator frame 14 . Other means of connecting the spring bars 16 to the stator core 12 and stator frame 14 may be used, for example, as described in U.S. Patent No. 4,425,523, which issued to Detinko et al. on January 10, 1984 and is incorporated by referenc...

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PUM

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Abstract

A spring bar assembly (110) for connecting a stator core to a stator frame. The spring bar assembly (110) includes an attachment member (116) with a hole and a spring bar (112) with a hole that aligns with the hole in the attachment member (116). A bolt passes through the hole in the attachment member (116) and the hole in the spring bar (112), where the bolt is used to couple the attachment member (116) to the spring bar (112).

Description

technical field [0001] The present invention relates generally to generators, and more particularly to a long-term solution for modifying the welded interface between U-plates and spring bars in generators. Background technique [0002] High voltage generators for generating electricity as an energy source are well known in the art. The power plant may include a gas turbine engine that combusts fuel and air in a combustor to generate a working fluid that expands across blades that rotate and in turn cause the shaft to rotate, thereby causing the shaft to rotate. The shaft of such an engine is coupled to the input shaft of a high voltage generator, which is mounted to a rotor with specially configured coils. Current supplied in the rotor coils generates magnetic flux around the coils, and as the rotor rotates, the flux interacts with the windings in the stator core enclosing the rotor. The stator core windings may include interconnected stator bars that are specially config...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/18H02K15/00
CPCH02K15/0006H02K1/185H02K5/00H02K15/14Y10T29/49009H02K1/187
Inventor J. F. 佩蒂D. T. 艾伦T. J. 韦特洛
Owner SIEMENS ENERGY INC