Motor bus transfer: considerations and methods

This paper addresses the types of motor bus transfer (MBT) available, explores its technical challenges, and analyzes the creation of proper settings when implementing an MBT system for power plant spinning motor auxiliary buses or industrial plant spinning motor buses. Classic approaches are described and conditions are explored that make these transfers proper or improper. Advanced implementations of MBT methodology that use high-speed sensing, decision making, and breaker control to account for the dynamic conditions in and about the plant, such as motor dispatch and loading, new source conditions, and faults are explored.