Formula to calculate amps rating when we are having only
the width & thickness of the coppper ?

Answer Posted / raju

resistance r=l/a, length/area of cross section then we get the
resistence value...so using ohms law we can solve the problem

Is This Answer Correct ?    0 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1550


What is frantic effect?

806


before synchronizing an alternator,power factor is leading ,why?

1128


What is the settings of distance protection relay in 400 kv line

1279


how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

1289






what is the difference between circular wdg & ractangular wdg?

1655


How to checked frequency drive output voltages?

779


What is Harmonics how it is produced and what is the method to control the same

1863


Instrument connected to a single phase supply

1355


WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

1790


i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

1586


wat is the first thing dat is needed, 2 lay a cable in some area??

1506


how to select energy meter? have any calculation?

2486


A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2485


can you please send me the technical questions and aptitude questions of honeywell and jindal steel electrical engg. question paper my e-mail ID is(kkesavanraj@gmail.com)

1630