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AUTO TRANSFORMERS FOR MOTOR STARTING

 
For the starting of Motors, On-Line starting is simple and inexpensive means. It provides maximum starting torque and acceleration. It has two important Limitations: -

Starting current is high, usually 5 to 8 times normal full load current.
This can cause an excessive temporary voltage drop on power lines which causes lights to flicker of may even interrupt the service.
Some load cannot stand the high starting torque.
 

AUTO TRANSFORMER STARTING
The major advantage of this method of starting motors are: -
1. Best for hard to start load.
2. Adjustable starting torque.
3. used with any standard motor.
4. Less strain on motor.

 

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