for measuring current and etc.,why we use value of 1.732 in
three phase calculation. not in single phase.why

Answer Posted / prathap

in single phase system power P=V*I*COS(pi)where
V=voltage,I=curent,but in 3 phase system P=root(3)V*I*COS
(pi),(root(3)=1.743)

Is This Answer Correct ?    5 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is model question rrb junior engineer electrical gr.II

1543


in science exhibition how lamp can blink when you clap near the lamp ? thank you

1496


How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

4000


what will happens if one phase is missing for 33/11kv power transfomer and why?

2192


why electronic instruments is more favorable than electrical?

1533






what is inverter and converter

1430


hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

1622


What is thresh hold value of current?

1594


upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

1634


we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

1914


Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel

1529


What is time invariant system?

683


why do we use 25kv supply for traction purpose?

1510


Convert a star connected network into a delta connected network.

649


there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1487