Stator bar jacking device for measuring radial movement of stato

Details Stator bar jacking device for measuring radial movement of stato Stator bar jacking device for measuring radial movement of stato

1998-03-24

2000-05-30

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Displacement

324220, 738658, 33558, G01B 714

Patent

active

060694734

ABSTRACT:
A pneumatic jacking device is used to measure radial movement of stator bars in their slots while the generator is in-situ. The jacking device is designed to pass through the radial gap between the field retaining ring and stator end winding, requiring a minimum entrance gap of 2.625". The device is placed between the retaining ring and the stator bar, and radial movement is measured by the application of a force such as by a pneumatic ram or the like. Radial movement is measured by a linear voltage displacement transducer and is transmitted to a measuring unit for further processing.

REFERENCES:
patent: 5020234 (1991-06-01), Alkrie et al.

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