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Question
```In case of 3Phase Supply,
Voltage R-Earth/Neutral  -  220
Y-Earth/Neutral  -  220
Z-Earth/Neutral  -  220
Total is ->   660Volts

Then Why it is said that 3Phase supply is 440
```
Question Submitted By :: Ashish Bansal
I also faced this Question!!     Rank Answer Posted By

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 1
this voltage measure in R-Y 440v Y-B 440v RB-440 v so this
said that 3 phase R-Y-B supply is 440 v

 Is This Answer Correct ? 11 Yes 2 No
Sachin Mahangade

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 2
we are calculating in phase to pase oly , so r-y, y-b, b-r
is 440 volt

 Is This Answer Correct ? 8 Yes 2 No
Jmdt

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 3
If we measure R-Earth/ Neutral that is 1 PH. 3 Phase, 440V
means we have to measure Phase - Phase i.e. R-Y, Y-B, R-B

 Is This Answer Correct ? 0 Yes 4 No
Padmavathi

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 4
220 Multiply by root three is equal to 281.4 volts. for 440
volts single phase voltage up to 254 volts.

 Is This Answer Correct ? 0 Yes 6 No
N

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 5
the vole meter have 2 terminals only.... then how can we
mesure in 3 phase voltage... only chance mesure in 2 phases
only the 2 phase voltage 440

 Is This Answer Correct ? 1 Yes 4 No
Vinoth

Re: In case of 3Phase Supply, Voltage R-Earth/Neutral - 220 Y-Earth/Neutral - 220 Z-Earth/Neutral - 220 Total is -> 660Volts Then Why it is said that 3Phase supply is 440
Answer
# 6
in three phase supply there are three phases (here R, y,
and z) and only one neutral.
the voltage between any one phase and neutral is 220.
and the voltage between remaining two phases is 440.hence
the 3 phase supply is 440

 Is This Answer Correct ? 2 Yes 1 No
Zubair

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