In a 3 phase induction motor there is 6 wires frm the windings.Inwhich ,we can measure ohms value between each other.there are 2 different ohms value between each pair of three wires. lets say,10 ohm...
A star or (wye) winding is a three phase four wire system. Three "hot legs" and a common neutral wire that connects all three phase coils together at one point where it is grounded to the system...
Transformers may have mulitple windings, but must have at least two. The Primary is the higher voltage, often denoted H. The secondary is the lower voltage (higher amperage) winding, often denoted X....