agree with normGA
work out in polar-change to rectangular,add,convert back to polar
I=12.86A
pf=0.73
bear in mind normal uk supply is now quoted at 230V
to jbartos-thanks-the equations required refer to an instantainous value using red phase as the reference vector , therefore the -assumption- is that in an ideal situation with exact phase angle differences on the coils
the other phases are exactly 120 degrees displaced at any given...
thanks guys-i realised my mistake was leaving the angular displacement/time out of my answers.
yeah i understand the cos equations but for the purpose of this exercise i have to show the sin formula.
many thanks for jogging my memory
steviesparkie.
in UK, spark proof / intrisically safe equipment required, suspect same where you are.Sugest contacting local authorities for confirmation or simply telephone a local electrical contractor who should be aware of laws/regulations in your area.
you might want to check with your building insurers...
3 phase ac generation, i need help in expressing the voltage equations for 3 phase.
is it simply Vr=Vmaxsin 0,Vy=Vmax sin 120, Vb=Vmax sin -120,
yr 2 of hnc electrical engineering.
sorry but im a bit dim.
