Measurement of motor winding temperature

Details Measurement of motor winding temperature Measurement of motor winding temperature

1976-12-29

1978-04-04

Rolinec, Rudolph V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

73362AR, 324 62, G01R 3106, G01R 2702

Patent

active

040830012

ABSTRACT:
The temperature of a motor winding is measured or monitored by measuring the resistance of the winding. This is done by introducing a small direct current component into the motor current, which can be done by connecting an asymmetric resistance device in the motor circuit. The resistance of the motor winding can then be determined from measurements of the direct current component and the corresponding voltage. This can also be done by using a magnetic amplifier with a bias winding excited in response to the voltage of the asymmetric resistance and a control winding excited by the motor current. A signal or indication can then be obtained when the current falls below a level which indicates a resistance corresponding to an overtemperature condition.

REFERENCES:
patent: 1952072 (1934-03-01), Jewell
patent: 3769576 (1973-10-01), Norkaitis

Affiliated with

Also associated with

Rating

Measurement of motor winding temperature does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Measurement of motor winding temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Measurement of motor winding temperature will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-725564