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分相电机构造简单,应用普遍,其接线方式如图1所示。启动时,启动绕组通过离心开关与运转绕组并联。当转速达到满载速度75%时,在离心力作用下,离心开关触点分离,断开启动绕组电源而进入正常运转。当离心开关损坏且难以修复、购置时,可用一只93W电冰箱启动继电器替换,该器件易购,接线简便,除具有离心开关作用外,在电机过载、超温时也能起保护作用。该继电器的接法如图2所示。其工作原理为:当电机接通电源时,电流经过运转线圈与继电器线圈,继电器衔铁吸动,启动接点闭合,使电机启动线圈得电。电机正常运转后,电流
Split phase motor structure is simple, universal, the wiring shown in Figure 1. Start, the start winding through the centrifugal switch in parallel with the winding operation. When the speed reached full load speed of 75%, centrifugal force under the action of the centrifugal switch contact separation, disconnect the start winding power to enter normal operation. When the centrifugal switch damaged and difficult to repair, the purchase can be used to start a 93W refrigerator relay replacement, the device is easy to buy, wiring is simple, in addition to a centrifugal switch, the motor overload, over-temperature can also play a protective role. The relay connection as shown in Figure 2. Its working principle is: When the motor is connected to the power supply, the current through the operating coil and the relay coil, the relay armature suction, start the contact closure, the motor starts the coil energized. After normal operation of the motor, the current