| 摘要 |
PURPOSE:To prevent a rush current upon starting a capacitance input inverter air-conditioner from being produced by a circuit constituted with a charging auxiliary contactor, a current limit resistor, and contact opening/closing means. CONSTITUTION:There are provided current limit resistors 4 on the sides of R- and S-phases of a charging auxiliary contactor 3 connected parallely to a starting electromagnetic contactor 2, and initial charging is effected onto a smoothing part capacitor by the auxiliary contactor 3 before the starting electromagnetic contactor 3 is switched on. Hereby, a rush current upon starting an air conditioner is prevented from being produced. |
