Methods and apparatus for producing dynamo-electric machine arma

Details Methods and apparatus for producing dynamo-electric machine arma Methods and apparatus for producing dynamo-electric machine arma

1994-02-07

1996-11-19

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310200, 310179, H02K 1509, H02K 312

Patent

active

055765858

ABSTRACT:
Armatures for dynamo-electric machines are balanced during manufacture by measuring the unbalance of the armature assembly prior to winding the coils on the armature. The numbers of turns of wire in at least some of the coils subsequently wound on the armature are then adjusted so that the unbalance of the resulting coils compensates for the unbalance of the armature prior to coil winding. Alternatively, one or more extra turns of wire that are short-circuited at the commutator may be added to help balance the armature. In addition, masses may be added to the armature to ensure that it is balanced dynamically as well as statically.

REFERENCES:
patent: 1976588 (1934-10-01), Thearle
patent: 5251833 (1993-10-01), Furuhashi et al.

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