Soft starter|Theory and working principle|How soft starter works|working principle of soft starter

Soft starter is a scr based starting device which is used to start motor with reduced starting current. the induction motor draws high current during starting. The soft starter intially throws low voltage to the motor, then gradually increases it to full voltage. So the starting current also gradually increases, instead of intial peak.
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[RANBIR]

Excellent elaborate Sir. It's very helpful to us as a poor student. No one either our college or faculty gives us this knowledge about this industry related topic. I am your big fan sir.

[vineshvinod]

I have seen many in youtube teaching electrical...but no one is good as you...hatss of sir ....continue make videos on more topic in electrical...thanks

[soumenbhattacharjee]

That video on Soft Starter was fantastic. Really thank you for that detail technical explanation.

[jiyan]

The best way.. To understanding
Thank you sir

[souravbose]

As always, excellent explanation. Even the basic is rehearsed as well. love it.

[nicolaspillot]

Are the firing of the SCR synchronous cross all phases, or each is fired at N% for each phase ?

[dtm]

Thank you for making videos on Electrical Technologies. Can you please, make videos on Smart Grid, HMI, SCADA, PLC, IED, DCS and their connection networking. Thank you once again - much appreciated.

[arghyanandi]

You cleared all my concert about soft starter

[bharathi]

SCR connection only made in two phases out of three..

I think u missed that topic...

Mentioned in soft starter manual sir...

[techyintelo]

Is there a math model (mathematical formula) of a soft starter ?

[krishnaRajput-mfdq]

sir please make a vedio for 12 pulse rectifier

[somasundarpndravid]

We have observed voltage across motor terminals in Y phase, ln off condition. What could be the reason?

[keyurgajjar]

Can you please make an video about motor protection, say how to do relay setting of ip>, ip>>, unbalancs load etc..

[imksanjiv]

What is reason behind FCMA Bypass Tripping??

[suryakumars]

Sir how to gradually increase the firing angle from zero to max(180 degree)..
Because it is completely opposite to three phase ac voltage control where the firing angle set for each SCRs are remains unchanged until the last operation!

[shekharharsha]

S/S once started give rise high Amp in a very short period and get shut. What could be the problem?

[ravijha]

Sir current won't be 0 at Ns right?

[vipulprajapati]

I make final year project in soft starter