Answer / swaminathan m

depending upon the starting PF and the starting current (A) (or) Full load current and PF

why middle phase should used for earth fault and other phases used for over current in overcurrent and earth fault relay?

7 Answers   ABB, ONGC,

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what is the difference between OSR and BUCHHOLZ relay of transformer?

1 Answers   Bhushan Power Steel,

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hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

0 Answers   Ansaldo,

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If there is major % of Voltage harmonics in the system, how can it be control or reduced?

0 Answers   JCN, Wipro,

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what is the formulae for selcting capacitor bank to increas pf

3 Answers  

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WHY WE CAN GENERATE POWER IN 3PHASE MODE ONLY NOT IN 4 OR 5 PHASE?

10 Answers  

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Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity

0 Answers   NCC,

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What is the difference between resistance grounding system and resistance earthing system?

0 Answers  

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why dc power can not be used in transformer?

33 Answers   GE, Sail,

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How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

0 Answers  

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how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

0 Answers  

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describe the A.C. Generator Testing procedure

0 Answers  

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