6 Starting Modes Of Soft Starter

- Nov 05, 2018 -

SOFT STARTER

 

soft-starter-for-asynchronous-motor05062151066

6 Starting Modes Of Soft Starter



WHAT IS A SOFT STARTER?


It is smoothly started, reducing the impact to equipment and grid.

 

HOW TO GENERATE A SOFT STARTER?


soft starter 6 starting modes


1. current-limiting starting mode


-motor starts, voltage rises, current to limited(constant),  

 voltage rises, motor speeds up to rated speed, 

 bypass contactors close, current down to rated/below, finish 


Use:  strict limit for starting current  

 

2. voltage ramp starting mode


-motor starts, current below 400% rated, voltage up rapidly then slowly as per setting to constant,motor speeds up to rated voltage and rated speed, bypass contactors close, finish 


Use:  no strict requirements for starting current,good starting stability

 

3. jump starting mode


-firstly non jump starting

-motor no start for huge friction, jump starting


Use I. heavy load machines use

    II. adding higher fixed voltage,(against friction) endure some time to generate         motor,power on via current-limiting starting mode/ voltage ramp starting mode

 

4. current ramp starting mode


-fast speed


Use:   apply to bipolar motor, short starting time

 

5.voltage current-limiting double closed-loop starting mode


-voltage ramp starting mode and current-limiting double closed-loop mode control


Use:    I. start steadily & strict current-limiting multi starting modes




Related Products