H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/106, 26/113
H02K 3/30 (2006.01) H01B 3/46 (2006.01) H02K 15/10 (2006.01) H02K 15/12 (2006.01)
Patent
CA 1133975
ABSTRACT OF THE DISCLOSURE Electric windings comprise an electric conductor and a plurality of cured insulating layers wrapped around the conductor. These cured insulating layers are obtained by bonding two or more insulating materials with a binder solution containing a mixture of a condensation polymerization type silicone resin containing hydroxyl groups in the molecule and an addition polymerization type silicone resin to form a composite insulating material. This composite insulating material is wrapped around the conductor, followed by the steps of impregnating the wrapped material with an impregnat- ing varnish of an epoxy-isocyanate resin and curing the impregnated composite insulating material. The product has excellent water resistance in addition to excellent thermal resistance and mechanical properties.
341355
Hakamada Takeshi
Narahara Toshikazu
Sakai Masahiko
Toyoda Shinichi
Tsunoda Tomoya
Hitachi Ltd.
Kirby Eades Gale Baker
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