Answer / k.prakashchandra

The CTs and their connections are so chosen that currents in
primary and secondary of each corresponding phase balance
each other, under normal working conditions.

the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?

1 Answers  

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why we are using in reverse power relay in generator singranizing

1 Answers   Dalkia,

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what difference beetwin phase voltage & line voltage and phase current& line current ?

1 Answers  

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(1)For 3 No 1500 KVA transformer require on one single bus bar or need to be section through bus coupler means upto 3MVA.(2) 22KV Net work system as ring, How maney I/C required or 0ne I/C and one O/G.(3) What should be rating of VCB for 22 KV line.(4)Electrical/mechanical inter lock, why we need.

0 Answers  

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what is the standard duration after failure EB power

0 Answers  

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Why underground cables are used to connect transformers?In addition how are they again connected to lines after step up or step down?

1 Answers  

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Single line diagrams for star to delta and DOL starters.

0 Answers  

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What happen Grid EARTH plat got cut.

0 Answers   Zuari,

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what meant by Locked Rotor Current ?

2 Answers  

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Is motorized MCCB required rotatory handle

1 Answers  

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can u tell the difference between star-star transformer and delta to delta transformer.

3 Answers   Videocon,

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Why cpaciter opposes sudden changes in voltage?and how?

1 Answers  

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