论文部分内容阅读
汽车、拖拉机用内燃机上的起动机,都是由起动用铅蓄电池供给电源,由于蓄电池的容量有限,所以在大电流放电时,端电压将随着电流的增大而显著下降,即电机的输入电压是随着起动电流的增加而大幅度下降,这是起动电机不同于一般直流电动机的特点之一,所以电机在不同电流时的输入功率,主要取决于蓄电池的伏安特性,其次是连接导线的电阻。起
The starter motor used in internal combustion engines of tractors and tractors is powered by the lead-acid batteries for start-up. Due to the limited capacity of the batteries, the terminal voltage will drop significantly with the increase of the current at high current discharges, ie, the input of the motor The voltage is greatly reduced with the increase of the starting current, which is one of the characteristics that the starter motor is different from the normal DC motor. Therefore, the input power of the motor under different current mainly depends on the volt-ampere characteristic of the battery, The resistance. Start