Answer Posted / sahil1996chopra
Undesireable change in othr aplliance
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Difference between earthing & grounding.?
What is the exact minimum vale of voltage between an earth and netural which can damage or can do malfunction of the electronic equipments ? If this is mentioned in any book, pl.give reference.
Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.
what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????
two phases with neutral supply can be taken in 3C X 10 sq.mm cable .
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?
WHAT IS THE MEANING OG (li = 7 In)
What are the difference between normal application Transformer and Solar application Transformer?
DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES
how many load we can take for lighting
what is differentila pilot supervision in the incomer control panel in the power station?
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
How to calulate Locked rotor amper(LRA) for compressor type motors?
what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero
