Welcome to the first in a series of articles focusing on electrical calculation basics. This month, we'll discuss the most fundamental of calculations — those for current (I) and kilowatts (kW). We'll also show you how you can do these calculations “in your head,” with very reasonable accuracy, through the use of constants.
I have a boiler with no data, but I measured the phase current for each phase. The reading is 19A at 380V? How do I calculate the power?
P = 1.73 x V x I x PF =1.73 x 380 x 19 x 0.80 = 9.9kW
or
P = 1.73 x 380 x (3 x 19) x 0.80 = 29.9kW
Which is correct calculation?
how will I know the ideal load on each circuit (single phase electricity?)
at 1 hp how much current will take 1 phase motor and 3 phase motor approximately please tell me.
