Answer / art

you can connect equipments earthing to a common earth bar
to provide a uniform current dissipation to earth thru its
grounding cable connected to the grounding grid(if
available) or multiple earthing rod.

usually, lightning arrestter earthing is directly connected
to the grounding network and not in common earth bar.

how we can calculate cable size for any load & any type of cable material ?

1 Answers  

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what is alternator?

4 Answers  

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Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.

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What type of core material is used for metering C.T and protection C.T???

0 Answers   Bhel,

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How do you classify the different types of torques?

2 Answers  

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Please give the formula for converting from 1 tr refrigeration to kw.

2 Answers   Bugema University,

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

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What is mean demand of the Plant?

2 Answers  

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What is the lockout relay

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During Millivolt drop test current leads are applied in the extreme ends and voltage leads are given just before the current leads.. what will be the difference if voltage leads are given in the extreme ends? and why?

1 Answers  

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what are the current specifications of bus ducts ? i ve seen in IPBD bth 22000 A and 1500 A in 400 kv switchyard . why it is so??

1 Answers  

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plz tell me about BACK emf and how it generates?

2 Answers  

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