Answer / akshat sharma

What i think, measured E/F is what we measure directly through a Zero-sequence C.T. or core balance CT. While derived E/F is which relay calculates from 3 c.t`s i.e vector sum of R/Y/B.

Which fault is caused by lightening and thuderstorm a. Line to line fault b. Single line to ground fault c. Double line to ground fault

1 Answers  

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How to calculate earth flat size for 250 Kva DG and transformer?

8 Answers   Deepak Fertilisers,

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Why generally the transformer primary is connected in star & secondary in delta

7 Answers  

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What is the difference between ground and neutral ?

2 Answers   TCS,

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how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

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how to remover corona effect and hysteresis losses from contactor

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what are the advantages of Horizontal isolation breakers v/s vertical isolation breakers in medium voltage switchgear class.

1 Answers   NNN,

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234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

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what is dyn 11

3 Answers  

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Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

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how diside ct mf exmp.200/5 ct

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why 30 ma elcb is used ?why cant 100 ma?

3 Answers  

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