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High-voltage motor phase-to-phase short circuit and over-current protection circuitb
Source: InternetPublisher:方世玉223 Keywords: protection circuit piezoelectric motor short circuit Updated: 2021/09/20
It uses an inductive current relay. The instantaneous part of the relay is used as a current quick-break protection device
to protect the motor from phase short circuit ; the inverse time characteristic part of the relay is used as an overcurrent protection device to protect the motor from overload
.
The symbols in the figure are the same as before.
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