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 3179respected 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 2420respetsed 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 2620i 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
1391what is the difference between core & shell type transformer ?& where we use those transformers ?
10 43137Post New Electrical Engineering Questions
for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance
In vapour absorption refrigeration machine fluids used are
what is the internal working of star delta starter
How the annunciator works ? How to do its wiring
how give earthing conection to household equipment?
What is the limitation of kirchoffs law?
3phase motor can be used as a Prime mover for alternator.
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
What is the type of feedback used in an op- amp schmitt trigger?
What is 100% protection of generator? Why 100% is not used but 95% is generally used?
No load tap changing transformer working
What are the factors influence the choice of an electrc drive?
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
How to calculate impedance volt in Transformer?
brief notes on ammeters
