G - Physics – 01 – K
Patent
G - Physics
01
K
340/154, 73/23,
G01K 5/48 (2006.01) G01D 5/42 (2006.01) G01K 5/50 (2006.01) G01K 13/00 (2006.01)
Patent
CA 1071427
ABSTRACT OF THE DISCLOSURE A thermometer unit is disclosed for monitoring the temperature of a fluid cooled electric transformer. The unit has a ceramic body insertable between the boils of the trans- former winding immersed in cooling fluid in the transformer case. A nylon element responsive to heat changes is confined in the interior of the body and is adapted to expand according to developing heat changes. A flexible tubing having a loop portion fronting a tapered end of the nylon element is filled with a fluid which 18 caused to oscillate in the tubing accor- dingly as a rocker arm alternate actuates a pair of associated bellows. As the nylon element expands in response to a tem- perature rise, it squeezes the tubing causing a load to be placed upon the rocker arm which is indicative of the corres- ponding temperature change.
283069
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