Device and method for surface inspection of a wedge for fixing a bar of a generator

A technology for inspection devices and generators, applied in the direction of electromechanical devices, manufacturing motor generators, using/manufacturing slot locking devices, etc., can solve problems such as long maintenance time, and achieve the effects of easy transportation, reduced size, and reduced size

Active Publication Date: 2020-08-07
ANSALDO ENERGIA SPA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Given the above, the program requires a long maintenance time

Method used

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  • Device and method for surface inspection of a wedge for fixing a bar of a generator
  • Device and method for surface inspection of a wedge for fixing a bar of a generator
  • Device and method for surface inspection of a wedge for fixing a bar of a generator

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Embodiment Construction

[0052] Hereinafter, in cooperation with the accompanying drawings, the technical contents and details of the present invention are described according to preferred embodiments, which are not intended to limit the scope of implementation of the present invention. The claimed claims of the present invention cover all equivalent changes and modifications made in accordance with the appended claims.

[0053] The present invention will now be described in detail with reference to the accompanying drawings.

[0054] refer to figure 1 , figure 1 is a schematic diagram of a gas turbine assembly (hereinafter simply referred to as a gas turbine) for a power plant. Indeed, the field of gas turbine generators is a non-limiting example of application of the invention. figure 1 A gas turbine 1 is shown having a rotor 6 defining an axis 2 and comprising, in series along a main flow M:

[0055] - compressor unit 3,

[0056] - a burner unit 4 in which compressed air is mixed with at le...

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Abstract

An inspecting device for inspecting a wedge surface (16) of a wedge (15) for fixing a stator bar (11) of a generator (7), in particular for measuring the deflection of the wedge surface (16), whereinthe generator has an axis (2) and comprises a in inner rotor (6) and an outer statoric part (8) provided with a plurality of axial groove (10) for housing in a recessed position stator bars (11) keptin position by wedges (15), an airgap (12) being present between the inner rotor (6) and the outer stator part (8); the inspecting device comprises a vehicle (19) having a size suitable for being inserted in the generator air gap (12) in presence of the rotor (6) and for axially running along the rotor axis (2) facing the wedge surface (16) to be measured; the vehicle (19) being provided with a contactless sensor device configured for inspecting the wedge surface.

Description

[0001] Cross References to Related Applications [0002] This patent application claims priority from European Patent Application No. 18425111.4 filed on December 31, 2018, the complete disclosure of which is hereby incorporated by reference. technical field [0003] The invention relates to the technical field of generators. In particular, the invention relates to the field of maintenance directed at electric generators, ie carrying out periodic inspection activities in order to verify the integrity of the components forming the generator. In more detail, maintenance activities related to the present invention relate to devices for carrying out superficial inspections of surfaces. The scope of this surface inspection may be to measure surface deflection, ie to measure the deformation of the surface curve from a flat or straight configuration. However, the scope of the surface inspection may also be to measure the inclination of only flat surfaces starting from an original ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16H02K15/00
CPCG01B11/16H02K15/00H02K15/0018
Inventor E.皮尼奥内G.马托拉纳F.达高斯蒂诺
Owner ANSALDO ENERGIA SPA
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