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Motor overheating protection and temperature measurement devices (2)

    1 thermocouple

    Thermocouple temperature and over-temperature protection for motor windings or bearings. Motor common thermocouple the WRF iron - copper-nickel thermocouple temperature range of -40 to 750 ° C.

    For WRF-X-type thermocouple, when in use, the thermocouple embedded in the winding end portion of the coil taping fixed, together with the coil dipping drying argument would lead to the terminal, and is connected to a special instrument.

    WRF-M-type thermocouple, when in use, the motor bearing housing but one hole (pass-through) and twist the corresponding threaded, then the bearing temperature thermocouple sensor is securely installed, the end face of the sensor makes contact with the bearing outer ring connection lead to the junction box, and connect to a dedicated instrument.

     2 thermal resistance applications

    Motor overheating protection, the common WZP platinum thermal resistance sensor for temperature measurement. WZP platinum thermal resistance sensor is a precise, high sensitivity sensors, linear temperature resistance than other resistive thermal sensor, and stable performance and high reliability. It is used in conjunction with KLB intelligent temperature control instrument can directly display the actual operating temperature and control the coil of the motor and bearings.

     Small motor platinum thermal resistance is generally used WZP-3 * 16-T (WZP said PT100, 3 * 16 said the sensing diameter * length, T ceramic package). Installation, just the sensors embedded in the motor winding end coils, compression lashing lead in the terminal box can be attached to the motor leads with leads and fixed.

     WZPM bearing platinum thermal resistance, the use of the motor bearing housing hole (pass-through) and twist the corresponding threaded, then bearing temperature thermal resistance sensor is securely installed, making contact with the end face of the sensor to the bearing outer ring, even The lines lead to the junction box.


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