How to Make relay co ordination chart for a Electrical power distribution of a plant

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DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain

1 Answers  

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Between Star-Delta & Star-Star Power transformer which one is efficent for Earth Fault?

10 Answers  

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define one ampere?

2 Answers  

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how to set the transformer differential relay

1 Answers   Divis Laboratories,

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Resistance of low voltage side of transformer compared to high voltage side is A less B equal C more D depens on design

1 Answers  

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1.generator rated as 1000 mva,11kv .8 pf what will 0.8 pf will indicate? 1.max pf it can supply 2.min pf it can supply like this 4 options there what is answer.explain

5 Answers   Power Grid,

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Why CT's shall not be kept open?

5 Answers   ABC, Qatar Gas, TIPL,

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HOW TO DRAW THE VECTOR DIAGRAMS OF A Dyn 11,YdN 1 transformers?

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Briefly describe three methods that are usually used by electricity suppliers to control voltage levels?

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From stability point of view,What(higher/lower) should be the value of inertia constant of rotating machines?

1 Answers  

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What are the main faults of DC generators?

0 Answers   Mercantile Marine Department,

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