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How To Test The High Voltage Of The Motor Temperature

Zhejiang Kening Motor Co.,Ltd | Updated: May 13, 2016

1, measure the core temperature. The usual closed-end motors, its rings can be unscrewed, an alcohol thermometer inserted in the ring hole, fixed with a soft object, the temperature can be measured close to the core temperature. Red temperature gauge can also be used at the eye hole is measured. For class b insulation in General Motors, the temperature should not exceed 70 ℃, class f insulation should not exceed 90 ℃.
2, measure the temperature. Bearing temperature cannot be measured directly, usually measure method of substituting a closest to the bearing outer ring. Using infrared measuring instrument for measurements, General Motors mounting thermal resistance through temperature transmitter the converted instrument direct readout.
3, handing method. When no such measurement instruments, can handle long lines, when the temperature is below 40 degrees centigrade for dozens of seconds, temperature is about 40~45℃ for 10 seconds, the temperature at about 50 c a retracted immediately contact, temperatures above 70 degrees.