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Engine_2014 : Electricity - 557/2299
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As shown in the illustrated three phase squirrel cage induction motor controller, what is the functional purpose of the "S" contactor?
A) it connects the motor to line during the starting period only
B) it connects the motor to line during the starting and run periods
C) it connects the motor in delta configuration during the starting period only
D) it connects the motor in wye configuration during the starting period only
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