| 摘要 |
PURPOSE:To obtain a capacitor motor which has excellent reliability by controlling a triac connected in series with an operating capacitor so that the firing angle is large at the starting time and small at the operating time. CONSTITUTION:A triac 8 is connected in series with an operating capacitor 3. A firing angle controller 9 detects a voltage of an auxiliary winding 2, and controls to increase the firing angle of the triac 8 at starting time and to decrease it at the operating time. Thus, a defect that sparks generated between contacts and time is required to start at restarting time can be eliminated, thereby obtaining a capacitor motor having excellent reliability capable of sufficiently enduring high load torque at the starting time. |
