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Triping principle of ELCB&RCCB? wht is the difference between these two?

2 Answers  

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the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

0 Answers  

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what parameters should we check to reduce the power bill

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how invertor convert the dc into ac give brif detail

0 Answers  

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can we use the step down transformer to step up transformer

6 Answers  

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what is the differance of acb and mcb and mccb

12 Answers   MacAir, MDS,

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what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)

2 Answers  

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define excitaton voltage and excitation current?

2 Answers   Allied Group,

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what is mean by NTPC?,why didn't electric shock in train?

7 Answers  

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What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?

0 Answers  

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How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.

0 Answers   Raychem RPG,

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what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

11 Answers   NTPC, ONGC,

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