ABSTRACT
Three-phase supplies to an installation are normally in star formation with an earthed star point, the earthed star point provides a zero potential within the system to give a single-phase facility (as shown in Figure 64). Star connection https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315863122/b66584da-ae46-426e-a83c-08160dc244ad/content/fig1_64.tif"/>
