SGP315 Impedance Type Distance Relay 

Sir, what is under operating of relay? As seen by the circle plot, the relay should operate as soon as the fault value enters the circle i.e. after point B. But the relay takes time upto point C to operate due to arc resistance. Is this the actual meaning of under operation of relay?

Which author books do you referred for the switch gear and protection subject please tell me?

Thank you sir for your valuable lectures . Sir Please provide the link for lecture series of Protection. Thank you so much Sir.

Thank you Sir

Sir how it can be K1 / K2 is Zset, because K1 is the constant related to current and K2 is related to voltage constant

sir, in power system where does directional relays find application?

Ur videos are superb👍 sir

Sir Due to Arc Resistance , the slope of line will also change as Total resistance increase...will it change or not?? If it changes our RX diagram will also change...

At point c impedence seen by relay is less than relay set , so relay operate why you called it as Mal operation occurring chance there sir ? and how can the locus of power swing can be drawn that passing through electrical centre.

Sir how impedance relay should overreaches??

How power swing locus is drawn,not understood clearly sir

You are too good sir

distance protection is non unit type of protection then how its protected zone can be decided @6:00

BehTreen🙌

ultimate

sir is hunting and power swing both same?

Very good 🙏🙏🙏🙏🙏🙏🙏🙏

But the characteristic of directional relay wasn't on r-x plane then how that characteristic can be used here