14
Gigant
Circuit for single speed
Motors up to 2.2 kW are generally started directly on line,
from 3 kW star delta starting is used.
Circuit for 2 speeds, proportion 1:2
(winding type: Dahlander)
Design for i.e. 1500/3000 min
-1
or 750/1500min
-1
Circuit for 2 speeds
(2 separate windings)
Design for i.e. 1000/1500 min
-1
or 750/1000min
-1
Circuit for 3 speeds
(2 separate windings - 1 of which being a Dahlander winding)
Design for fan drives 750/1000/1500 min
-1
or 8/6/4 poles;
750/1500 min
-1
in Dahlander winding.
Electrical connection
switch Y/
∆
Circuit of the windings
The ends of the
three windings
lead to the star
delta switch Y/
∆
∆
circuit
Y circuit
Low speed
High speed
Magnetic switch control
Pole reverser
Low speed
High speed
Magnetic switch control
Pole reverser
or
750 min
-1
Circuit design
Magnetic switch control
Pole reverser
1000 min
-1
1500 min
-1
Circuit for 3 speeds
(2 separate windings - 1 of which being a Dahlander winding)
Design for fan drives 500/1000/1500 min
-1
or 8/6/4 poles;
500/1000 min
-1
in Dahlander winding.
or
500 min
-1
Circuit design
Magnetic switch control
Pole reverser
1000 min
-1
1500 min
-1