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when we r using 3.5 cable for a bldg. and put laod on each phase using the neutral and neutral is the return paht for the phase so the current of the neutral must be Ir+Ib+iY (return).But the size of the netural is .5 as comper to the phase.
2 4158respected sir, sir recentely i have applied for chennai and tiruvananthapur section enggineer and juniour engg in electrical dept. but still i donot get how i have to syart my preparation and also t the same time i donot know exactly what they r going to give in the examinations i mean which sections they r going to give i donot know exactly, can u prefer whichh books i have to follow and model papers or both boards
1 3193respetsed sir, i have applied for section engg and juniour engg for both chennai and tiruvunabthapur boards for electrical deportments . can u suggest what books i have to follow and and also from which sections they r going ask (i mean weightage and what topics i have to cover) for both se and je for both chennai and tiruvunanthapur boards.......
1 3561i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors
1856what is the difference between core & shell type transformer ?& where we use those transformers ?
10 46032Post New Electrical Engineering Questions
What is the comparison of PILC and XLPE cable
I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)
what are factors to be consider in electrical installation like load factor,diversity factor .....
How much load can take a 16 mm aluminum cable 3 phase
Why are the laminations insulated from each other?
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
What is VCB? where it is installed at SP. What is SP?
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
whati s the sludge current in ups
Why lose 1 phase voltage in 33kv to 415v stepdown transformer
Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?
any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?
how to differentiate a mpcb,mcb with a contactor? Explain their working operation
how many electricity poles are there and what are the names and their sizes.
