Answer / parthasarathy c

Diffrential protection is used to protect internal fault
like winding faults,it is used to protect the the
equipments like Generator,Transformer and bus bars.

If CT polarity changed in Directional type releys it will
give trip command when normal operating condition.

Brfore giving connection we must read name plate details to
avoid polarity change.

could i arrange a faulty and healthey battery bank togather in parallel , if your ans is not then why?

3 Answers  

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List the time domain specifications.

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how much current carry a 3-1/2 core of 100mm size cable.explain it with solution

2 Answers   ACS,

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how to calculate overall efficiency of diesel generator set? give us a formula with an example.

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using in R,Y& B PHASE LTSIDE(415V)ct ratio 4000/5 WITH ENERGYMETR OF 1280 REV./KWH,240V.WHAT WILL BE MF OF METRE.

1 Answers   HCC,

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A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42

3 Answers   Ramky,

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what is the function of an auto reclosure relay in OHL?

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What is the difference between Droop vs Isoch Control?

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What is thermal relay and how it is works in transformer please explain

2 Answers   Future Group,

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What is the importance of setting TSM & PSM?

2 Answers  

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