A single-phase motor in which the run capacitor remains connected when the motor runs is called a:

A single-phase motor in which the run capacitor remains connected when the motor runs is called a:

• A. Permanent split capacitor motor
• B. Split-phase motor
• C. Capacitor-start induction-run motor
• D. Capacitor-start capacitor-run motor

Answer: (A)

Single-phase motors rely on a phase shift between the main and auxiliary windings to create a rotating magnetic field. When the run capacitor stays connected to the auxiliary winding during operation, that phase shift is maintained throughout running, which defines a permanent split capacitor motor. This design provides smooth running and steady torque without a starting switch, unlike split-phase motors (no run capacitor and a starting winding switched out after start) or capacitor-start types (where the starting capacitor is used only during starting). The key idea is that the run capacitor remains in circuit while the motor runs, signaling a PSC motor.

Single-phase motors rely on a phase shift between the main and auxiliary windings to create a rotating magnetic field. When the run capacitor stays connected to the auxiliary winding during operation, that phase shift is maintained throughout running, which defines a permanent split capacitor motor. This design provides smooth running and steady torque without a starting switch, unlike split-phase motors (no run capacitor and a starting winding switched out after start) or capacitor-start types (where the starting capacitor is used only during starting). The key idea is that the run capacitor remains in circuit while the motor runs, signaling a PSC motor.