motor control protectorGY102 motor control protector is the result of the experience accumulation from the motor protector & the microcomputer protector research &production and the modern high-tech.It is a omnibearing motor smart monitor protector which is made by import integrated circuit ,intellectual property right and software copyright,and has the advanced fieldbus interfaces.It protects and controls the motor by microprocessor and supports the feeder protection to complete the motor operation,autodiagnosis,communication with upper computer and so on.Its measure protection avoided the productive accidents caused by the motor fault like overload ,locked-rotor ,overvoltage ,undervoltage, underload,open-phase,electrical grounding earth etc.,and ensured the equipments'normal function and safety . Basic protection function: start-up protection: Only do the protection for the open-phase,overvoltage. Undervoltage,short-circuit and three phase unbalance,overtime start-up within the start-up time. overvoltage protection: Will function within 6s when the working voltage is bigger than the set value(factory default value is 260V) undervoltage protection: Will function within 6s when the working voltage is smaller than the set value(factory default value is 180V) open-phase protection: when any phase is power off,function time≤2.0s locked-rotor protection: when the working current reached the multiples of the set value, function time≤2.0s unbalance protection: when any two phase's current difference reached the set percentage,function time≤2.0s underload protection: When the working current is continuously smaller than the set underload limit, function time≤2.0s. leakage protection: When the zero sequance tansformer detected the leakage current reached the set value, function time≤1.0s.(factory default value is 1) Short-circuit protection: when the short-circuit current value reached 5 multiples of the set leakage cur
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