交流发电机的功能交流发电机通常以发动机的双倍转速运转,因此,即使发动机怠速时,发电机仍有功率输出,此外,其单位马力重量仅为直流发电机的一半。自激式三相交流发电机由如下部分组成:爪极转子、励磁线圈、用于输入激磁电流的滑环、定子铁心、定子绕组和有三个励磁二 Alternator Function The alternator usually operates at double engine speed, so the generator still has power output even at idle, and its unit horsepower weighs only half the DC generator. The self-excited three-phase alternator consists of a claw pole rotor, an excitation coil, a slip ring for input of exciting current, a stator core, a stator winding,