Industrial Control

 Industry    |      2017-01-03

 MZ6T type PTC thermistor type motor protection in accordance with international standard DIN-44081 and DIN-44082 is based on professional production of ultra-temperature protection for motorand other parts of the PTC thermistor is placed in a three-phase windings of the motor when thetemperature reaches insulation class temperature, PTC resistance increases, the high-impedancesignal is transmitted to the control and protection control, protection disconnect the motor based on a signal lineto protect the motorUnder normal ambient temperatures, PTC thermistor resistanceRp is less than Rs, lower output voltagewhen the ambient temperature exceeds the settemperature, PTC thermistor resistance Rp rapid increase over Rs, resulting in increased enough Vhigh voltage operation.