1. Direct Start Y / -start Auto transformer starter
Mice cage style motor
Traditional Motor start method
Direct Start
Y / -start
Auto transformer starter

2. Superabundance starting current
Direct Start
Direct start torque
load torque
Acceleration Torque
Current
(Torque)
6-10 x In
2.5
X （In） motor torque
motor current
Acceleration Torque
Superabundance starting current 1 In
speed
speed
100% N
100% N

3. Y /  Start Low cost/Simple to Operation Constant Torque running
Switch Peak value
Six line operation

4. Y /  Start Motor Over Load Fuse L1 U1 W2 L2 V1 U2 W1 V2 L3
Connect insulator
contactor
 contactor
Y contactor

5. Superabundance start current
Y /  Start
Y (Current)
Y (Torque)
switch peak value
(hight to 20xIn)
 Torque
Y Torque
Load torque
surplus speed torque
6-10 x In
Superabundance start current
2.5
Motor current
X (In) motor torque 1
0.66 In
speed
100% N
speed
100% N

6. Auto transformer starter
Difficult to Design
Bulky
Expensive
One-time use only
High cost for repeated uses

7. Auto transformer starterK3 K2 K1
contactor
Connect insulator
Motor overload
L1,L2, L3
Fuse
Auto transformer starter
motor
(Y/  connection)

8. Auto transformer star Current Torque motor torque load torque
pace speed up
6-10 x In
2.5
Motor current
X (In) motor torque
0.66 In
speed
100% N
speed
100% N