Measurement of motor winding temperature

作者: Derek A. Paice

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