Reverse-torque applied to an electric motor commands the rotor to stop as the reverse-direction electromagnetic field attempts to force it to run in the reverse direction.
When the rotor speed (still in the forward direction) drops below the _________ - _______ setting of the plugging switch, the held-closed plug-switch contacts return to their NO position, dropping out the reverse-direction power-contactor solenoid coil as the motor comes to a standstill (stops): the motor has been _________ - ____________.
A) hold-in; plug-stopped
B) hold-out; plug-stopped
C) hold-in; plug-started
D) none of the answers
Show Answer
Answer:A
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