1.

Is It Possible To Use The Same Soft Starter To Start Two Mv Induction Motors?

Answer»

Yes, it is possible to start multiple motors from a single soft-start. Typically, the motors are started sequentially and are identically rated. In a typical MV application, additional contactor cabinets are connected and control-tied to the soft-start. Once the first motor comes up to speed, the soft-start “Switches” to control the next motor in the sequence.

In the case of only two motors, some soft-starts are manufactured with dual settings to PERMIT STARTING of motors that have different starting CHARACTERISTICS, but actual motor output during ramp-up may not differ much, being LIMITED by the inherent performance characteristics of the soft-start.

Multiple simultaneous starting of motors requires that the motors be identical and that the soft-start be sized for the TOTAL load and supplied with supplemental cooling.

Yes, it is possible to start multiple motors from a single soft-start. Typically, the motors are started sequentially and are identically rated. In a typical MV application, additional contactor cabinets are connected and control-tied to the soft-start. Once the first motor comes up to speed, the soft-start “Switches” to control the next motor in the sequence.

In the case of only two motors, some soft-starts are manufactured with dual settings to permit starting of motors that have different starting characteristics, but actual motor output during ramp-up may not differ much, being limited by the inherent performance characteristics of the soft-start.

Multiple simultaneous starting of motors requires that the motors be identical and that the soft-start be sized for the total load and supplied with supplemental cooling.



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