Automatic high-speed motor bus transfer at industrial facilities and power plants-theory and application

This paper analyzes the motor bus transfer (MBT) issue and developing schemes to accomplish transfer that promote process continuity while causing no damage to the motors or the loads. An important value to decide the viability of MBT is the resultant volts per hertz (V/Hz). The resultant V/Hz issue is exacerbated when the phase angle difference increases and the voltage difference increases. Several methods have been proposed and discussed here