MPM-B1302F-MJ72AA

MPM-B1302F-MJ72AA

直接启动：将电机接通电源，直接通过电源将电机转动起来。这种方法适用于小功率电机和负载比较轻的情况。

　　自耦变压器启动：在直接启动的基础上，加入一个自耦变压器，通过自耦变压器来减小电机的起动电流，避免启动时对电网造成过大的冲击。

　　降压启动：在直接启动的基础上，通过在电机线路上串联一个降压器来减小电机的起动电流。降压器可以是变阻器、自耦变压器或稳压器等。

　　星角启动：将三相异步电动机的绕组接成星形，启动时先将电机的电源接成星形，等到电机运转稳定后再切换成三角形，这样可以减小电机起动时的电流和冲击。

　　变频启动：通过变频器控制电机的电源电压和频率，将电机起动时的电流和冲击控制在合理范围内。变频启动适用于大功率电机和对起动电流有限制的情况，如空气压缩机、大型冷水机组等。

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