Hot spot thermometer

Details Hot spot thermometer Hot spot thermometer

1976-08-05

1977-07-19

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73345, 73357, 73363, G01K 108, G01K 548

Patent

active

040360580

ABSTRACT:
A thermometer unit for monitoring the temperature of a fluid cooled electric transformer, the thermometer unit having a ceramic body insertable between the coils of the transformer winding immersed in cooling fluid in the transformer case. A nylon rod responsive to heat changes is confined in the interior of the body and is adapted to expand and contract according to the heat changes to vary volume flow of a gas circulated by a pump in a closed circuit connected with the body. Variations in the gas pressure are indicated on a sight gage externally of the transformer.

REFERENCES:
patent: 1630307 (1927-05-01), Norwood et al.
patent: 2374055 (1945-04-01), Treanor
patent: 3383919 (1968-05-01), Marcy et al.
patent: 3540650 (1970-11-01), Boekelman et al.
patent: 3960017 (1976-06-01), Ronianowski

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