how to calculate efficiency of voltage and current controlled welding transformer?

1 Answers  

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explain Density

0 Answers   TCS,

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What is the difference between earthing & neutral.

2 Answers  

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IN a transformer during power supply how the LV and HV bushing works??

3 Answers   CSEB,

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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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Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

0 Answers  

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My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

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How can we find out earth leakage,(shock)in side the house?.. (with out ELCB)

3 Answers  

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define digital electronic

0 Answers  

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How to decide the rating of CBCT? We have 6.6Kv switchgear & having 50/1 cbct ,i want to know how this 50/1 A came? On what basis we decide CBCT reting?

1 Answers   Cross,

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A synchronous machines has higher capacity for (1) Leading power factor (2) Lagging power factor (3) Does not depend upon the power factor of machine (4) None of the above

3 Answers   JSW,

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why use only sf6 circuit breker in 400 kv sub station

5 Answers   BARC,

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