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Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.
2 4030What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.
2677hi friends i am harish and i have a problem plz solve it . . The problem are how to calculate the rpm of mechanical blower if any formula for calculate for this then tell me if drive shaft gear are 40 teeth and driven shaft gear are 70
1 3247while stroke checking of a linear control valve ,found its travel is in non linear ,what can be possible reason ? ( please answer send in mannanali65@gmail.com) pls pls pls if any body know
2 6618why the steam turbine is not operated in home(base) load more than 1 hour kindly calrify
TATA,
4 11021I want to buy a seal kit of a pneumatic power cylinder.But I don't know it's specification.So please help me to know its specification.
1953can anyone pls expain me about how can we design a cable tray??suppose if have to draw a 3 nos of 50 sqmm AYFY and 2 nos of 35 SQmm of AYFY cable through the tray..how can we design the tray size?? regards...
3 6163neutral axis more than the critical neutral axis then rainforcement in rcc beam belong to over or under rainforcement
2 5591if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?
2567
what is draiv work
Why is water motor not taking the pressure? what is the problem?
What is meant by cyclo-converter?
Explain the otto cycle in brief.
What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
What is the difference between inductance and resistance?
what is the use of permanent magnet generator in exciter
any idea abt REVERSE METERING concept.........?
i am going to give interview for the post of ibps po..so there is a question in my mind which is "Being an electonics and communication engineer how can you help in banks, I mean whats the application of your education in banking."
What were the awards given to rakesh sharma?
explain the methods of measuring aproblem of armature reactionof DC machine?
what is earthing.how we make it,describe briefly.
hi i will D.E.E.E.is completed pls send rrb diploma old qustion papaer sent in my e mail. i.d.
Are some heat transfer services more prone to tube vibration that others for a shell and tube exchanger?
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
