MOTOR CONTROLLERS
Electrical Distribution Systems
Summary
The important information contained in this chapter is summarized below.
Motor Controllers Summary
Motor controller - controls and protects the operation of a motor
Controller’s protective features - fuses, thermal overloads, and magnetic
overloads
LVP - de-energizes motor on low voltage and keeps it from automatically
restarting
LVR - de-energizes motor on low voltage and restarts when the voltage is
restored to normal
LVRE - maintains motor across the line at all times
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