Briefly explain the characteristics of motor overload protection

Motor overload protection features

answer:

( 1 ) current size

As the name implies, the sign of the motor overload is that the output current of the inverter exceeds the rated current of the motor. However, it has not exceeded the rated current of the inverter, that is, it is within the allowable range of the inverter.

( 2 ) Protection time

According to the law of inverse time. That is to say, the more the overload, the shorter the protection time. Some inverters specify that when I M =125% I MN , it trips after 4 minutes ; when I M =165% I MN , it trips after 1min .

Briefly explain the characteristics of motor overload protection


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