i am having a 3 phase 12.5HP motor,that is connected in Star/delta.Without any Trip that motor stopped suddenly why?8 6331
as per IE stranded what is max voltage between neutral to earth. 100 kva transformer neutral solid earth. min and max values i need to ans for RTI question2 3337
why should a transformer be never connected to dc supply5 6084
why electron flow is opposite to current flow?3 4509
why the power factor is low at no load?1 3166
how to calculate the current carrying capacity of a 25 & 16 kva distribution transformer.2 4118
can a 12v dg starting battery(150 AH) be replace by 6 nos of 200AH batteries each of 2v connected in series.3 3688
what shall be no load voltage of 132/33 kV transformer ? is it 33 kv of 34.5 kV
what are the tests comes under the type test, what tests comes under routine tests.
hello if any one have papers vof hpcl or sail, plz send me
What are the different modes of plc processor?
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
explain the mode of metal iranafer in Co,welding
How we calculate DC inducation moter Amp? Sir pls give me formula......
What we mean by vintage of an engine+Generator?
In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring
What is an Air COmpressor
Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.
Difference between earthing & grounding.?
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?