Electric transformer for underground mining machine
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United States of America Patent
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-
Jan 3, 1989
Grant Date -
N/A
app pub date -
Feb 29, 1988
filing date -
Mar 7, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A transformer for use on an underground mining machine, such as a shearer loader. The transformer is cylindrical in shape and contains a central cavity extending therethrough to allow positioning of the transformer about a drive shaft of the motor of the mining machine. A tubular housing surrounds a cylindrical iron core with such housing containing a helically wound coolant duct to allow coolant fluid to flow therethrough.
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