Spark suppression of induction type rotors of dynamoelectric...

Details Spark suppression of induction type rotors of dynamoelectric... Spark suppression of induction type rotors of dynamoelectric...

H - Electricity

02

K

H02K 1/22 (2006.01) H02K 15/02 (2006.01) H02K 17/16 (2006.01)

Patent

CA 2231371

A rotor for an induction motor of the squirrel cage type wherein the rotor bars are exposed to a resilient anti-sparking compound in the rotor slots of the machine. The rotor bars are provided with a longitudinal slot to permit the insertion of the anti-sparking compound after assembly of the squirrel cage rotor. Alternatively, the laminations may be shaped to produce a longitudinal groove in the rotor bar slot to permit the insertion of the anti-sparking compound in the groove so produced. Of course, both the rotor bar and the rotor slot may both be provided with complimentary slots adjacent one another in which the anti-sparking compound may be injected.

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