Answer / sachin mahangade

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

Answer / jmdt

we are calculating in phase to pase oly , so r-y, y-b, b-r
is 440 volt

Answer / 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

Answer / padmavathi

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

Answer / vinoth

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

Answer / n

220 Multiply by root three is equal to 281.4 volts. for 440
volts single phase voltage up to 254 volts.

why the air gap is necessary in the transformer core

1 Answers   Eskom,

what is the impedance voltage of transformer?

1 Answers   AVI Enterprises, MacLellan,

why protection and metering CT's are always connected in star why not in delta?

5 Answers   Reliance,

what things to be considered when designing UPS

0 Answers   Aplab, Veta Kipawa ICT Center,

what is the function of choke in tube

1 Answers  

How can we find out earth leakage,(shock)in side the house?.. (with out ELCB)

3 Answers  

how give earthing to shif and aeroplane which is away from earth?

1 Answers   ABC,

What is an alternator impedance value?

0 Answers   Orchid,

On the transformer breather at what length should i change my sililca gel.

4 Answers  

what is bus coupler, where it used.

14 Answers   Diebold,

on what priciple transformer works on?

5 Answers  

4-Why we measure the insulation resistance of main core and frame in spite of that must be connected with ground before energize the transformer?

3 Answers