Electromagnetic induction device

Inductor devices – With temperature modifier – Ventilating passages

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174 161, H01F 2708

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active

051382946

ABSTRACT:
An electromagnetic induction device has coils of a plurality of phases and a duct through which a cooling medium is introduced into the coils to cool them. Guides are provided in the duct so asd to realize a substantially uniform distribution of the cooling medium to all coils. The flow rates of the cooling medium through the coils is substantially uniformallized so that the coils exhibit substantially the same temperature rise. As a consequence, any difference in the life between the coils is substantially eliminated.

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Patent Abstracts Japan JP-A-59 A1 818.

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