SGP312 Earth Fault Relay

[@jitendramishra9313]

Sir Really you are genious, your teaching method is great.

[@abhinavbajpai6955]

very well explained sir.. helps a lot... I wish to meet u once in my life.. ♥ ♥

[@surendrakverma555]

Very good lecture Sir. Thanks 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[@youssefahmed3265]

Hello Sir, here in this video precisely at time 8:35 you said that during fault at phase B, the voltages of two other healthy phases are going to got increased to line voltage values as a worst case of being the fault impedance equals to zero, although the neutral point of primary windings is soildly grounded, but with reference to your kind series of neutral grounding practice in power system, the voltages of healthy phases have been kept constant at phase values without any rise and this in case of solidly grounding neutral, so could you please clarify

[@babukumar280]

Sir, Thanks for your guidance. Please explain for overcurrent we called 30 degree or 90 degree conection. In here this is called which conection and what is the maximum torque angle?

[@jamesowusu-ansah595]

sir please, so for the earth fault relay connection, either the non directional overcurrent relay can be used or this one can be used as well 2. Secondly, in this method, is it only the directional element of the directional overcurrent relay is used to make the connection.

[@ajaychandradoragari1253]

if i dont want directionality then i could use single non directional relay ? and where do we use this relay ? and because use of this relay for special application requiring it use directionality?

[@krishnomondal6000]

Sir, In neutral solidly grounded system you have shown that voltage across the phase will be phase voltage in case of occuring line to ground fault. But in this lecture in PT connection with neutral grounded you have shown that in case of fault voltage across the other phase will be line voltage. It is contradictory. Please clear.

[@krishnomondal6000]

From 7.00 minutes in this video..

[@electricalknpwledge3511]

sir, I have a question if only L(R-phase)-G fault occurs then only the one phase will trip or all the three-phase will be trip?

[@vamsikali]

Sir explain concepts of self polarization and cross polarization. RCA concepts also.

[@praveenkp5463]

In the case of non directional relay, there is voltage coil or not?

[@praveenkp5463]

@@lecturesinelectricaleng thanks

[@gautamjangid7826]

sir is earth fault relay is a distance relay?

[@phamquyen0201]

hi sir, micom relay that doesn't us Open delta to detect earth fault same your Video, it still you normal PT star-star and Relay detect the 3U0, is it ok, can you make 1 video to explain about this

[@faseenk7187]

What is the number of relays used for line to line fault in 3 phase system

[@biswaljayanti665]

For a delta star transformer for Line to earth fault say in B-Ph then Zero sequence current flows between B-ph ground and neutral then how a zero sequence current induced in delta winding. Pls make a video upon it

[@debduttbhattachargee1814]

Sir please give a lecture on Neutral Displacement Relay working & its use in NGR of Delta star transformer.

[@brahmaiahk3140]

Thank you sir