描述
6DD1681-0CA2
作电动机运行的同步电机。由于同步电机可以通过调节励磁电流使它在超前功率因数下运行，有利于改善电网的功率因数，因此，大型设备，如大型鼓风机、水泵、球磨机、压缩机、轧钢机等，常用同步电动机驱动。低速的大型设备采用同步电动机时，这一优点尤为突出。此外，同步电动机的转速完全决定于电源频率。频率一定时，电动机的转速也就一定，它不随负载而变。这一特点在某些传动系统，特别是多机同步传动系统和精密调速稳速系统中具有重要意义。同步电动机的运行稳定性也比较高。同步电动机一般是在过励状态下运行，其过载能力比相应的异步电动机大。异步电动机的转矩与电压平方成正比，而同步电动机的转矩决定于电压和电机励磁电流所产生的内电动势的乘积，即仅与电压的一次方成比例。当电网电压突然下降到额定值的80%左右时，异步电动机转矩往往下降为64%左右，并因带不动负载而停止运转；而同步电动机的转矩却下降不多，还可以通过强行励磁来保证电动机的稳定运行。
产品承诺：
保 证 全新原装进口,
保 证 安全准时发货，
保 证售后服务质量，
优势价格，大量现货。
主营DCS系统配件
机器人系统配件
大型伺服系统配件
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