Method and apparatus for measuring wedge

Details Method and apparatus for measuring wedge Method and apparatus for measuring wedge

1989-02-17

1990-02-20

Chapman, John

Measuring and testing

Vibration

Loose object detection

356375, G01H 114

Patent

active

049015729

ABSTRACT:
A wedge measuring apparatus comprising a measuring head, capable of being inserted between a stator and a rotor of a revolving electric machine, for testing a coil-urging state of wedges inserted in a slot, and a mechanism for moving the measuring head in the longitudinal direction of the stator and the circumferential direction of the rotor. A test for the coil-urging state is performed to prevent a coil from extending from an opening in the radial direction. In this case, the coil is inserted in a slot having the opening formed in a stator wall surface opposite to the rotor, and the slots are formed along the axial direction of the stator core.

REFERENCES:
patent: 4136312 (1979-01-01), Salon et al.
patent: 4325640 (1982-04-01), Dreyfus et al.
patent: 4422320 (1983-12-01), Moorby et al.
patent: 4653318 (1987-03-01), Jadwin et al.
Hydrogenerator Coil Wedges Easy to Check, Vin Tek Inc., Richland Electrical World 1986-12 (pp. 57-58).

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