SGP322 Working Principle of Differential Relays

Lectures on Switchgear & Protection By Dr. Tirupathiraju Kanumuri, Assistant Professor, NIT Delhi

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[abhinavraj]

Sir is the current transformer here is having 3 windings??

[biswaljayanti]

In CT primary current and secondary current should of opposite polarity, but you have shown in the same direction

[mohdalishan]

nice explanation sir...
able to understand concepts very easily

[melkin]

What you mean by current reversal in double phase system

[vamsimouli]

Sir small doubt long transmission lo pilot wires kuda run chestara differential protection kosam 2 CTs chala dooram unnnatai kadhaa ani doubt

[sampathbachu]

Sir are the Adjustable resistors automatic or manual

[surugayatri]

Sir if there is an internal fault also why can't a over current relay near to CT1 can be used to trip??

[medisettyramakrishna]

Sir secondary current should be less than primary for ct know but u told same current need to flow

[arvipriyamaurya]

Why voltage differential protection not more used

[praveshsaini]

sir if it's possible can you make course on electronics subject for analog and digital both .

[surajveertalreja]

Dear Sir,
I must say, your students will never need to come and watch YouTube channels like we do.
You really make our concept clear with through explanations.

Best Regards.

[vamsimouli]

Circuit breakers kosam ...cheppaledhu taravathaaa cheptaaraaa