Littelfuse MPS - Wye-Delta Open-Transition-Starter Connection; Autotransformer Closed-Transition-Starter Connection

Page 6-14
MPS Motor Protection System Rev. 6-F-022117
Starter Functions
FIGURE 6.21 Wye-Delta Open-Transition-Starter Connection.
FIGURE 6.22 Autotransformer Closed-Transition-Starter Connection.