how do we calculate contactor and fuse rating for a motor if its full load current is known,i want exact calculation for 1.5 kw motor????

1 Answers   Allied Group, Nucon,

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Cables Construction hi friends, 0.6/1/1.2 kV LV , DC and Control cables are concentric copper conductor what does its means and what is the use of concentric copper conductor,and are this with copper tape shield or copper screening, ? thanks

0 Answers  

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why current flow to the opposite direction of flow of electrons???????????

0 Answers   Bhel,

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What should the transformer connection of a 11/220 kV step up and 66/11 kV step down transformer ?

4 Answers   CGL,

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what is tesla ?

1 Answers  

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What is the Power Plant.

5 Answers   Sail,

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What is the dc grounding system and what is diff between AC/DC grounding system?

0 Answers  

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what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

0 Answers  

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I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

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what is use of governer in diesle engine

1 Answers   Aricent,

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what is the current limit of lighting arrester ?

1 Answers   ABB,

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is there any difference in reading or error in value, if we connect the R phase in Y terminal and Y phase in R terminal of electronic energy meter of 11 kv feerders???

1 Answers   KSEB,

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