Create Vector Diagram for RLC System: Analyzing Currents & Voltages from Given Data Table

Hello!

For the data from the table (RLC system) I need for one selected case

draw a vector diagram of currents and voltages.
You could help me, because I totally don't know how to go about it. I looked through the forum and google, there is something there, but I can't understand how to draw it.

Check it out:
http://wazniak.mimuw.edu.pl/index.php?title=PEE_Modu%C5%82_2
but whole! The flavors are at the end.
Google and 2 minutes of searching!

To draw a phasor diagram, first draw the vectors Ur, Uc and Ul. For example Ur horizontally, then Ul will be vertically upwards and Uc will be vertically downwards (the current is in phase at Ur, on the capacitor the current is ahead of the voltage, at the coil the voltage is ahead of the current).

The voltage Url is the sum of the voltages Ur and Ul so it has the direction of the vector resulting from the sum of these two voltages, but draw its length as you measured. It will be the same with Uc.

After adding the vectors Ur, Ul and Uc you will get the voltage U (direction from summation, length from measurements). Current I is in phase with Ur. For power, we do not draw a pointer .

I tried to draw according to your tips:

good is it?

kamilk87 wrote:

I tried to draw according to your tips:

good is it?

And yes and no, because the directions of the pointers are not marked and there is no unit segment for voltages and currents (not described) - after all, these charts should be drawn in the chosen scale.
Besides, what case is this for?

this is a revised version of the previous drawing:

And this is the first case of U = 45V

kamilk87 wrote:

this is a revised version of the previous drawing:

And this is the first case of U = 45V

This is almost correct - there is still no unit section for the current.

So it is enough to draw a unit segment for current as I did for voltage and take this segment as a scale on the graph and it will be ok?
And one more question: where should Ulc be placed on this graph? it will be the resultant of Ul and Uc, i.e. in this graph a downward arrow originating at the intersection of the line on which the vectors Ur and Ul lie ...

kamilk87 wrote:

So it is enough to draw a unit segment for current as I did for voltage and take this segment as a scale on the graph and it will be git ?

No, - see above - and correctly, but on this one phasor diagram is also marked phase angle ? between voltage indicator and the current indicator :
? = ? AT - ? AND , where;
? AT - value the initial phase of the voltage ,
? AND - value the initial phase of the current .

kamilk87 wrote:

And one more question: and where should Ulc [ AT LC ]? it will be the resultant of Ul [ AT L. ] and Uc [ AT C. ], that is, in this graph, a downward arrow originating at the intersection of the line on which they lie vectors points Ur [ AT R ] and Ul [ AT L. ] ...

You answered yourself ...

PS Look how I change - enter the mode - the case of the indexes and they should be written - just like on the chart - in capital letters.

Is it okay now?

kamilk87 wrote:

Is it okay now?

Yes, just an arrow on arc phase angle towards voltage indication AT - after all it is directed angle (with sign) and here it has a negative value, because it is accepted positive direction is counterclockwise rotation.

And you may know what are the relationships between the voltage values on individual elements of the circuit.
Because I have to add it to the measurements and this graph.