single phase for 230 then why three phase are 440 volt
Answer Posted / sethuraman.v
we can measure the voltage through multimeter (i.e)in multimeter having only two probs. so we can measure only 2phases (i.e)440V to measure the 3 phase voltage we have to use the formulae of 3 phase power (root3 VI COSO)by applying this formula we can calculated as 440V
| Is This Answer Correct ? | 5 Yes | 8 No |
Post New Answer View All Answers
What are the different sign conventions used in electric circuits?
if a.c supply is given to the motor,, what happen?
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks
Difference between low impedance and high impedance Restricted Earth Fault
What is the effect of positive feedback on stability of the system?
WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?
can you plz send l&t aptitude questions if available its urgent plz plz plz
hello friends..... any one have papers or any study materials?sail ,hpcl...?
Dear Respected sir how to test ABB REX521 protection relay by relay tester.
various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.
What facility we get after CT secondary earthing and how?
hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet
What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV
What are the advantages of instrument transformer?