Question

1. A split-phase induction motor has a dual-voltage rating of 115/230 volts. The motor has two running windings, each of which is rated at 115 volts, and one starting winding rated at 115 volts. Draw a schematic diagram of this split-phase induction motor connected for a 230-volt operation.

2. Draw a schematic connection diagram of the split-phase induction motor in question 1, connected for a 115-volt operation.

Answer 1

1. Schematic Diagram of split-phase induction motor connected for a 230-volt operation:Explanation:A split-phase induction motor is a type of induction motor that is designed to start by itself but requires a special starting circuit to run. A split-phase motor has two windings: a starting winding and a running winding. The starting winding is located at 90 degrees to the running winding and is designed to give the motor a starting torque. The running winding is used to produce the motor's running torque.The following is a schematic diagram of the split-phase induction motor that is connected for a 230-volt operation:2. Schematic Connection Diagram of the split-phase induction motor connected for a 115-volt operation:Explanation:To connect a split-phase induction motor for a 115-volt operation, the two running windings must be connected in parallel, and the starting winding must be connected in series with a capacitor. The following is a schematic connection diagram of the split-phase induction motor that is connected for a 115-volt operation:Therefore, the main answer to the given problem is as follows:Schematic Diagram of split-phase induction motor connected for a 230-volt operation is given below:To connect a split-phase induction motor for a 115-volt operation, the two running windings must be connected in parallel, and the starting winding must be connected in series with a capacitor. The schematic connection diagram of the split-phase induction motor that is connected for a 115-volt operation is given below: