A friend today we'll talk About why 3phase voltage is 415 volts, why 3 phase voltage is 440, not 660 volts, why 3-phase voltage is 400 volts By Instant Solution

As you recognize, the frequency of AC current is fifty cycles/second, which suggests that this current comes fifty times in one second and goes away. we tend to cannot see this current and want a frequency meter to live the frequency of this.



So Friends, as you'll see, our electricity flows on the screen during this high and down condition

इस ब्लॉग को हिंदी में पढ़े:-  3 फेज को 440 वाल्ट कहते है 660 वाल्ट क्यों नहीं 


As you'll see, the buddies R section is flowing from its place, with the middle from that the second B section is flowing higher than the middle,



the face distinction of each of those is going to be 440, as you'll see.
Now the third Y section comes from very cheap of the friend that is our two-phase, coming back from and. during this wave kind, continuously one section can continuously return down. None of the R, Y, B can continuously section up to fifty below cycles/second. It implies that your section is just in your 2 phases, one section is usually yours. MAINES –


This means that ever your red wire is going to be within the minus, there'll be ever a blue wire, which suggests it changes fifty times in one second, therefore we tend to decision it fifty cycles/second Friends 440 in three sections so they continuously say during a face along It doesn't have current therefore we tend to live a similar voltage of 2 faces and 440 VOLTS area unit known as it and not 660 volts. therefore during this means, our electricity flows up and down within the condition of fifty cycles/second


I justify it to you in otherwise. thus I'm explaining this to you therefore actually because once looking at this video/BLOG your mind can leave this question forever, therefore I'll illustrate to you once more IN sensible

3 section offer has three-wire(R, Y, B), currently the voltage across any one section and neutral is 230v, {and we tend to|and that we} say three sections is 440v as a result of we check the voltage between any two-phase(RY, YB, BR)


In India, we've got a 240V single-phase system and a 415V (1.732 * 240) three-phase system
Basically, locution that {the three|the three} section offer can replicate the one section offer 3 times may be a false take.


the one section offer is between one line- & Neutral.
the three section offer we tend to get isn't like measured between 3 lines-Neutral (like (R-N = 220) + (Y-N = 220) + (B-N = 220) = 660 IS WRONG).


Rather the provision we tend to get in three phases is measured between either of the 2 Lines wise ( R-Y or Y-B or B-R) & at a time one is not in action.


calculating the voltage between a pair of lines is like adding the 2 voltage sources, however, the purpose to require note of is that they all area unit a hundred and twenty phase-shifted to every different (i.e. either lead or lag by a hundred and twenty degrees during a wave course. to them).

इस ब्लॉग को हिंदी में पढ़े:-  3 फेज को 440 वाल्ट कहते है 660 वाल्ट क्यों नहीं 


Now if you connect any 2 of the three lines it'll behave rather like the 1-phase offer solely. {it can|it'll} Run to convey you o/p however with loaded configuration & will maintain heating the windings finally burning your appliance to fumes.


Now in 3-phase we've got voltages else of the two-line i.e. R=230 +Y=230(120 shifted)
So total voltage = 230 + 230 (+-120 degree)

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