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If single phase having 220v so why 3phase is440v.
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Answer / chandrashekar
just simple multiply by Square root of 3
sq. rt.3=1.73
therefore
1.73*240v=415v
| Is This Answer Correct ? | 32 Yes | 5 No |
Answer / khadar baba
per phase values is 415/1.732 =240V
that is why single phase is 240V
| Is This Answer Correct ? | 13 Yes | 2 No |
Answer / pradhyumn
In a 3 phase supply,at any instant one of the phase act as
a returning path for the two phase in a same way as neutral
is used in single phase so 3 phase is 440V and not 660V.
| Is This Answer Correct ? | 17 Yes | 8 No |
Answer / sajid hussain
For three phase
1.732*220v=381v
if single phase voltage is 220 then three phase is 381v. just multiply 1.732 to your single phase voltage.
| Is This Answer Correct ? | 8 Yes | 3 No |
Answer / supreet virdee
hey if we consider 3 phases R,Y,B
we know tht in each phase there is 220v that means in 3 it
should be 660v. but we gnerally consider 2 phase i.e.
combination R-Y,Y-B,R-B, there fore the total voltage is
440v or 415v.
| Is This Answer Correct ? | 14 Yes | 13 No |
Answer / rajesh
Whrere 3 Phase Star connection
Line vlotage = root 3 * phase voltage
if line voltage (Phase to Phase) = 415V
then phase voltage (phase to neutral) = 415/(root 3)
= 240v
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / md. obaydur rahman
In case of single phase voltage the voltage is measured from
1-phase to neutral but in case of 3-phase voltage the
voltage is measured from 1-phase to another phase but not
among three phases. Hence the 3-phase voltage is
=1.732*single phase voltage.
| Is This Answer Correct ? | 3 Yes | 5 No |
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