PS75 Resistance Grounding

Lectures on Power Systems By Dr. Tirupathiraju Kanumuri, Assistant Professor, NIT Delhi

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[sankarkotamarti]

Sir, motor designed for high resistance grounding system is also suitable for use in solid grounded system? Please clarify. Thanks!

[ashokar]

hi sir thanks for your great service you have done here, lot of my doubts were cleared in just one video, how ever i have one doubt that, one of our commissioning engineer is advising to use NGR at 480V side of 2MVA and 500MVA Transformers telling that if we use NGR we can save the grid earthing cost, kindly advice that if he is right.

[surendrakverma]

Excellent lecture Sir. Thanks 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

[MagneManet]

Thanks for excellent lecture. Will the healthy phase to neutral voltage change due to neutral shifting or only healthy phase to ground voltage changes?

[debduttbhattachargee]

Sir don't you think 30secs is very long. I think it should be in milliseconds

[vamsimouli]

Sir switch gare protection classes eppudu start chestharu...
Koncham cheppagalara

[GauravSharma-fmbz]

Sir why in this case capacitive current cannot flow through fault as in case of ungrounded neutral

[akhilsm]

Dear Sir Could you please confirm whether this 2.2Kv and 33Kv is all about Alternator voltage rating, because for normal powersystem even at very much downstream of alternator for line to ground fault we are considering KA range of current.

[akhilsm]

Dear Sir during fault, will the healthy phase to neutral voltage change due to neutral shifting or only healthy phase to ground voltage changes

[payelkumari]

Is this neutral resistance is sufficient to remain system in stable condition, since alternator was supplying huge load before fault then how this small resistance is sufficient to remain system in stable condition?