Electrical Motor Connection

ELECTRICAL MOTOR CONNECTION:

 

How to Change Rotation of Motor in Clockwise Direction

No	Present Motor Connection:			Change Direction in Clockwise
1	R Phase Connected to	U1	W2	R Phase Connected to	U1	V2
	Y Phase Connected to	V1	U2	Y Phase Connected to	V1	W2
	B Phase Connected to	W1	V2	B Phase Connected to	W1	U2
2	R Phase Connected to	W1	V2	R Phase Connected to	W1	U2
	Y Phase Connected to	U1	W2	Y Phase Connected to	U1	V2
	B Phase Connected to	V1	U2	B Phase Connected to	V1	W2
3	R Phase Connected to	V1	U2	R Phase Connected to	V1	W2
	Y Phase Connected to	W1	V2	Y Phase Connected to	W1	U2
	B Phase Connected to	U1	W2	B Phase Connected to	U1	V2

Change Rotation in Anticlockwise Direction

No	Present Motor Connection:			Change Direction in Anticlockwise
1	R Phase Connected to	U1	V2	R Phase Connected to	U1	W2
	Y Phase Connected to	W1	U2	Y Phase Connected to	W1	V2
	B Phase Connected to	V1	W2	B Phase Connected to	V1	U2
2	R Phase Connected to	W1	U2	R Phase Connected to	W1	V2
	Y Phase Connected to	V1	W2	Y Phase Connected to	V1	U2
	B Phase Connected to	U1	V2	B Phase Connected to	U1	W2
3	R Phase Connected to	V1	W2	R Phase Connected to	V1	U2
	Y Phase Connected to	U1	V2	Y Phase Connected to	U1	W2
	B Phase Connected to	W1	U2	B Phase Connected to	W1	V2

Thumb Rule :

Check Phase Winding Starting Phase and Connected ending Connection of That Phase winding to the one Phase after the Phase where Phase winding Starting lead is connected. (Ex If U1 is connected to R Phase than Connect U2 to B Phase, If V1 is connected to Y Phase than V2 should be connected to R Phase)