In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

1 Answers   L&T,

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can any tell me why slope 40% and 80% is calculated in differential protection?

0 Answers  

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if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

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why we use CVT (capacitive voltage transformer)in switch yard?

5 Answers  

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Dear sir, please tell me how many day use CTPT transformer

1 Answers   Daya Engineering Works,

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how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?

1 Answers  

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how to find out difference between ELCB, MCB and RCB on looking on it

1 Answers  

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hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

0 Answers  

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Why the ratation of fan is anticlockwise all over the world?

2 Answers   GNFC,

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what is the difference in MCB, MCCB, RCCB, ELCB, & MPCB (motor protection circuit bracker)

12 Answers   Afcons, Bhel, CIHSR, DCS, IOCL, L&T, Lupin, Siemens,

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what is 30-phase of transformer

0 Answers  

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what do u mean by PS-0.2-5P class of Ct

3 Answers   ABB,

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