The Analysis and Improvement of Common Faults of the BERNARD Actuators
As an actuator for driving valves,electric actuators have many advantages,such as high driving torque,short action time,easy remote control,and various protection functions.At the same time,there are also some drawbacks,such as complex structure and easy occurrence of faults;The operation of the motor needs to generate heat.If adjusted too frequently,it can easily cause the motor to overheat,generate thermal protection,and also increase wear on the reduction gear.During the construction and commercial operation of a certain nuclear power plant project,there were many faults in the BERNARD electric head of the nuclear island.This article starts with the structural characteristics of this type of electric head,analyzes the faults,and proposes some preventive and treatment measures to improve the operational reliability of the equipment.
BERNARD actuatorsopen torque faultlimit switchlow insulationclutch
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