Electrical Engineering - Three-Phase Systems in Power Applications - Discussion

Discussion Forum : Three-Phase Systems in Power Applications - General Questions (Q.No. 5)
5.
In a -connected source feeding a Y-connected load,
each phase voltage equals the difference of the corresponding load voltages
each phase voltage equals the corresponding load voltage
each phase voltage is one-third the corresponding load voltage
each phase voltage is 60° out of phase with the corresponding load voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
20 comments Page 1 of 2.

M K nandu said:   9 months ago
The Common point of the Star Connection is called Neutral or Star Point. Consider VR, VB, VY are three-phase voltages and VRB, VBY, and VRY are line voltages:

|VR|=|VB|=|VY|=|VPhase|

Let VPhase= VP,
|VR|=|VB|=|VY|=|VP|

We can write VRY as,
VRY = VR + (-VY).
VRY = VR -VY.

Khushal said:   10 years ago
Load voltage e.g. phase voltage on load side which is connected in star and source is delta.

So line and phase volt is equal for this.

Now, V(source line) = Vr-Vy (load phase) depends on nomination R, Y, B.
(2)

Abhishek said:   1 decade ago
Whenever the delta connected source is feeding star connected load the phase voltage is always equal to the line voltage of star connected load it means vdelta = vload of star connected.

Muhammad Aftab Rafique said:   9 years ago
Tthe difference of the corresponding load voltage means:
Vab = Va - Vb.
So phase voltage is Vab.
The difference of load voltages is Va - Vb.
(1)

ABHAYA said:   1 decade ago
Phase voltage of delta connected = line voltage of delta.

Difference of voltage in star connected load = delta connected source voltage.

Subhendu said:   1 decade ago
If the delta connected source is fed to the star connected load then phase difference is 120'. So that difference will be same.
(2)

Monu said:   1 decade ago
Whether the phase voltage of delta connected source equals the difference of line voltages of star connected load. How?

Anusha said:   1 decade ago
Whether the phase voltage of delta connected source equals the difference of line voltages of star connected load.

Vijay said:   1 decade ago
Vab=Va-Vb IN STAR so phase of delta Vsorce=|Vab| bc & ca.
But line current is simply kcl across the node.

Bitan said:   1 decade ago
In delta connected source feeding a star connected load, phase voltage is equal to line voltage.


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