H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/109
H02K 3/48 (2006.01) H02K 3/487 (2006.01)
Patent
CA 1051081
DYNAMOELECTRIC MACHINE LOCKING WEDGE FOR COIL RETENTION ABSTRACT OF THE DISCLOSURE A coil retention system for large dynamoelectric machines with a locking slot wedge of two parts of which one part is T-shaped with the top of the T disposed in the space between adjacent packs of core laminations and the bottom of the T lying in the slot and tapered to a small thickness, the other part of the locking wedge being located in lateral grooves at the slot opening and having a tapered portion that fits over and retains in position the T-shaped part. The locking wedge is used at the ends of the coil slot while intermediate core packs may have conventional slot wedges driven in through lateral grooves. An insulating tape overlies the coil in the slat and wraps around the end of a slot filler and has an extremity locked in place between the locking wedge and the adjacent slot wedge of the next core pack. Cured resinous material bonds together the two parts of the locking wedge and an adhesive on the insulating tape bonds it to the slot filler.
255163
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