G - Physics – 06 – G
Patent
G - Physics
06
G
328/198, 354/9
G06G 7/56 (2006.01)
Patent
CA 1169501
ABSTRACT OF THE DISCLOSURE This device provides electrical characteristics which are the analog of the thermal characteristics of a device whose thermal behaviour is being monitored. This device utilizes a resistor-capacitor network to provide an analog circuit which equates the thermal conditions in the rotor of a dynamoelectric machine to the voltage build-up in the capacitor of the analog circuit. In order to keep the size of the capacitor within reasonable limits, a sampling technique is used to connect the capacitor into the electrical circuit for short periods only. This has the effect of multiplying the size of the capacitor.
359153
Oldham And Company
Westinghouse Canada Inc.
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