| 摘要 |
PURPOSE:To electrically isolate a starting coil by performing the energization of the coil only during the period set by a timer or the like. CONSTITUTION:When a start switch S is closed, a relay R1 is operated, the open contacts R1a1, R1a2, R1a3, R1a4 of the relay R1 close, thereby energizing the starting coil 1 and the main coil 2 of the motor 3 and a timer relay TR, and the motor 3 is rotated by the energization of the coils 1, 2. When the preset period is elapsed, the relay TR operates a relay R2. A closed contact R2b1 which is connected in series with the coil 2 is opened by the operation of the relay R2, the energization of the coil 1 is isolated, and a current is thereafter flowed continuously only to the coil 2. |
