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 Posted / zubair

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 ?    4 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Do closed loop systems require manual input?

661


what is the role of transistor in Circuit?

669


Pl.brief me any electrical major fault you have rectified.

1492


how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

1745


what is accuracy ? in any meters , coils accuracy . how can u defined that ?

1925






State and define norton’s theorem?

776


1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

1226


Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both

2317


What are the insulation standerds for eg H clase and how many insulation standerds are there and its standerds??????

1484


700KW 6.6KV slip ring induction motor to use VFD to control the speed

2777


what is meant by power and distribution transformer ?

1514


How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?

4258


what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

1570


what is the string efficiency

4478


i have 3500 amp load and select current transformer and perches.how i calculate .please understand

1720