Answer / koti

in 3-phase sysytem 4 lines will be there.

3 lines for R, Y, B. 1 line for neutral. So B/W R&B or B&Y
etc is line to line voltage i.e 440V
b/w any one of R or Y or B nad neutral is phase voltage i.e
230V

Answer / t. k. s

Voltage across any two line in a multiphase system is line
voltage. where as voltage across a line and a neutral is
phase voltage.

Answer / kiran

phase to phase and line to line voltage are same.

Consider the voltage in R-phase or line=230V
Y-phase or line=230V
B-phase or line=230V

To calulate phase to phase voltage you have a formulae i.e.,
inputvoltage*root3(1.732)i.e.,
230v*1.732=398.36v.

This is called as phase to phase or line to line voltage.

Answer / dinesh

Phase to Phase Voltage= 415 v
Line to Line Voltage =

Answer / raj

In case of star
Phase current= line current and Iph=Iline

Phase Voltage = Line voltage/1.732

In case of Delta

Phase current = Line current/1.732

Phase voltage = line voltage

Answer / omprakash

R phase TO NEUTRAL =220V
Y Phase to neutral =220V
line to line voltage =440v

Answer / jyotirmaya

In a multiphase electrical system, the voltage appears
between any two phases or line i.e. between R-Y, Y-B, B-R is
called "Line Voltage"
&

The voltage appears between any phase or line and
neutral(R-N, Y-N, B-N) is called "Phase Voltage"

Answer / priya

phase voltage is the potential difference between a phase
line and a neutral line. i-e) R and neutral is 240 V
similarly Y and neutral is 240 V
B and neutral is 240 V

Line Voltage is Between the two phase
R and Y is 415 V
Y and B is 415 V

Answer / zero cool

line voltage is 415 volt
(i.e. voltage between any 2 phases R&Y, Y&B, B&R.)


line voltage is = root 3 times of phase voltage

415v = 1.732 * V phase

so V phase = 239.6 v
approx = 230 v.

Answer / sudhan

IN STAR CONNECTION:

Line voltage is measured between two phases.
Phase voltage is measured between phase and neutral.

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