In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?3 6133
How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.1 2539
Generally at what power factor the electronic equipments like computer, TV, EPABX etc.,operates. Please tell me.1 2525
Which type of power plant is more easier to produce electrical power at economical condition?5 6226
explain about RTCC2 4763
tell me exact relation b/n voltage and current and which one is depend other7 5045
why is the transmission voltage is multiple of 11?1 3775
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.1154
If we touch the Capacitor terminals you feel shock after the capacitor was put in operation and not in case of inductor though both are energy storage elements.why?4 6943
What is the full form of SON-T lamp?1 9531
why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.1020
Should the neutral earthing of 33/11KV D-S transformer, be connected to the earth grid?(Yes/ NO) why?1 3802
Why Trasformers rated in KVA13 11849
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Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar
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