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8. THE ELECTRICAL MOTOR AND BRAKE ANCHORAGE
8.2
The Electrical Motor Connection Schema
Three phase squirrel - cage motor
I.
Terminal Box
II.
Circuit Breaker
Three phase squirrel- cage motor. Dahlander connection.
Low
Speed
High
Three phase squirrel - cage motor. Dahlander connection.
Low
Speed
High
W2
U2
V2
U1
V1
W1
I
L1
L2
L3
2U
2V
2W
1U
1V
1W
I
L1
L2
L3
L3
L2
L1
I
2U
2V
2W
1U
1V
1W
2U
2V
2W
1U
1V
1W
I
L1
L2
L3
L3
L2
L1
I
2U
2V
2W
1U
1V
1W
I
W2
U2
V2
U1
V1
W1
L1
L2
L3
W2
U2
V2
U1 V1
W1
W2
V2
U2
L1
U1
L2
V1
L3
W1
I
L1
L2
L3
II