Wye-delta starting is accomplished by connecting the_____________ in wye during the starting period and then reconnecting them in delta for normal run operation.
A)stator windings
B)overload relays
C)timer contacts
D)motor terminals

Question

Quizplus · Accepted Answer

Wye-delta starting is a method used to reduce starting current and torque in three-phase AC induction motors while still providing full voltage to the motor during normal operation. This is achieved by connecting the stator windings in a wye configuration during the starting period, which reduces the voltage applied to each winding and therefore reduces the current and torque. Once the motor reaches a certain speed, the windings are reconnected in a delta configuration for normal run operation, which provides full voltage and full torque to the motor. Therefore, the stator windings are the components that are connected in a wye configuration during the starting period and reconnected in a delta configuration for normal run operation. During wye-delta starting, the stator windings of the motor are connected in wye during the starting period for reduced voltage, and then reconnected in delta for normal run operation for full voltage. This method is used to reduce the starting current drawn by the motor and prevent damage to the motor and its connected equipment.

Wye-Delta Starting Is Accomplished by Connecting The_____________ in Wye During