Please give the correct explanation on the negative cycle... The negative cycle when after -ve peak it starts increasing up to zero axis and then to positive peak and then decreases till zero...
Thanq...I appreciate ur question It doesn’t mean that the value increases if the waveform goes up and the value decreases if it goes down Just observe the magnitudes of the waveform at different position Consider the max value to be 5 for example At first point Q1 is at 0 value and Q2 is at 5 Then with the increasing time... Q1 goes like 0,1,2,3,4,5. Whereas Q2 goes like 5,4,3,2,1,0 So this shows that Q1 increases and Q2 decreases The same applies for other instants also Hope its clear...☺️ Feel free to ask more doubts if any
It was very clear to understand mam but one small doubt the voltage drop in V2 on load ,comes in which phase in the phasor diagram mam can you answer me with good explanation mam
Sorry I'm not convinced at 7:00. Two opposing quantities should have 180° displacement and not 90°. The reason we often convert negative sign to 1∠180° in polar form.
I have a question... In the AC supply line we generally have 3 phases of AC 220V in 120° apart... In the big industries they use all these lines together and get higher power output using 3 phase induction motors.. So my question is.. How are these voltages are shifted by 120° w.r.t. each other? I mean V1= V (Sinωt) V2= V Sin(ωt+120°) V3 = V Sin(ωt+240°) These are the 3 phases of AC current supplied.. how do these phase shifting is done?
sorry for a late response, I was not active here for the last few days Coming to ur question .... We generate 3phase electrical power from synchronous generator at a higher voltage like 11kV(considering the transmission losses) and then step it down to 415 at utilisation level. So this generator construction is such that it produces power with phase displacement of 120 between each phase. The three windings in the stator are placed 120 degrees apart in order to obtain a phase displacement of 120 degrees. Each winding is lagging by an angle of 120 from the other winding and so the emf is also induced after 120 So we have 3phase at 415V phase angle of 120 for our utilisation For example, elevators in our apartments... And Individual distribution to each house shall be from single phase because we have only single phase loads in domestic applications For example, even if live in the same apartment, u might be getting single phase supply from one phase (say R) while I get from the other(say Y)
Can you please add another core and another winding which means 3coils 2core loops explain the phase angle while we taken center winding as a primary. Please explain this one ,,,,,,,,,,,,
Very informative but let me clear some confusion. Usually there are marked vector group at name plate of transformer which is represented the actual phase shifting. Let's assume a transformer which having Dyn11 and other one have Dyn5. 1st one having 30° lagging lv to HV and other having 150° degree. So what will happen at over all system.?
Hi miss! Great explanation, my question is that, does the primary voltage have a phase difference of 90 degrees to the induced secondary voltage? If not then why
Firstly It’s a very good question The term Emf is related to source like a cell or transformer or a generator whereas the voltage depends on the load connected. If I connect a 2V battery in series with a resistor, then what u have across the terminals of battert is called emf and what you have across terminals of resistor is called Voltage or potential difference.
Question: when resistive loads are connected to the secondary, will the phase shift of secondary remain the same or will the phase angle decrease from 180 degrees? pls explain
dear madam here is some questions in my mind 1 what happened if the phase-shifting angle changes? let's suppose the first angle was 30 degrees which change to 45 degrees?
Ok first coming to your doubt Even in electrical circuit also when two currents are flowing in opposite directions they oppose each other just like how forces act !! Here the two quantities will be 180deg apart as you said…
Whereas here the quantities are 90deg apart… one quantity is not opposing another quantity rather it is opposing the change in the other quantity hence this is a completely different case
dear madam here is some questions in my mind 1 what happened if the phase-shifting angle changes? let's suppose the first angle was 30 degrees which change to 45 degrees?
Here E1 is self induced emf due to current I1 and E2 is mutually induced emf due to current I1. Since both E1 and E2 are due to current I1 both are displaced by the same phase angle from Voltage V.
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Engineering is over, now I know how to get this, thank you very much madam😅😅😅😊
Beautiful narration. Crystal clear
Thnq
Make a video of 3 phase transformer by using any one vector group as an example
Your teaching method is excellent 👌👌👌
Your sound.....is awesome dear
Madam 3phase transformer phase shift . explain madam.
Thanks 👍
awesome
Thanku
Please give the correct explanation on the negative cycle... The negative cycle when after -ve peak it starts increasing up to zero axis and then to positive peak and then decreases till zero...
Really the whole presentation was good but I have little doubt and is I think at 5:38 onward
Q1 ⬆️ Q2 ⬆️
Q1⬇️. Q2 ⬆️
Q1. ⬇️. Q2 ⬇️
Q1 ⬆️. Q2 ⬇️
Thanq...I appreciate ur question
It doesn’t mean that the value increases if the waveform goes up and the value decreases if it goes down
Just observe the magnitudes of the waveform at different position
Consider the max value to be 5 for example
At first point Q1 is at 0 value and Q2 is at 5
Then with the increasing time...
Q1 goes like 0,1,2,3,4,5. Whereas
Q2 goes like 5,4,3,2,1,0
So this shows that Q1 increases and Q2 decreases
The same applies for other instants also
Hope its clear...☺️
Feel free to ask more doubts if any
First of all ,Thank you to give me such a nice explanation.really it's amazing
Always welcome🤗
It was very clear to understand mam but one small doubt the voltage drop in V2 on load ,comes in which phase in the phasor diagram mam can you answer me with good explanation mam
Sorry I'm not convinced at 7:00. Two opposing quantities should have 180° displacement and not 90°. The reason we often convert negative sign to 1∠180° in polar form.
Awesome explanation in just 10 minutes
Thanq so much
I have a question...
In the AC supply line we generally have 3 phases of AC 220V in 120° apart... In the big industries they use all these lines together and get higher power output using 3 phase induction motors..
So my question is..
How are these voltages are shifted by 120° w.r.t. each other?
I mean
V1= V (Sinωt)
V2= V Sin(ωt+120°)
V3 = V Sin(ωt+240°)
These are the 3 phases of AC current supplied.. how do these phase shifting is done?
sorry for a late response, I was not active here for the last few days
Coming to ur question ....
We generate 3phase electrical power from synchronous generator at a higher voltage like 11kV(considering the transmission losses) and then step it down to 415 at utilisation level.
So this generator construction is such that it produces power with phase displacement of 120 between each phase.
The three windings in the stator are placed 120 degrees apart in order to obtain a phase displacement of 120 degrees.
Each winding is lagging by an angle of 120 from the other winding and so the emf is also induced after 120
So we have 3phase at 415V phase angle of 120 for our utilisation
For example, elevators in our apartments...
And Individual distribution to each house shall be from single phase because we have only single phase loads in domestic applications
For example, even if live in the same apartment, u might be getting single phase supply from one phase (say R) while I get from the other(say Y)
@@letslearnelectricalenginee4671 thanks a lot ❤️❤️
Always welcome for any questions
I gave myself a headache trying to figure this stuff on my own. The textbooks never explained the specifics. Thanks
Im glad that it is helpful 😊
what is the importance of phase shifting in the power system?
why did we need it?
Can you please add another core and another winding which means 3coils 2core loops explain the phase angle while we taken center winding as a primary.
Please explain this one ,,,,,,,,,,,,
Very informative but let me clear some confusion.
Usually there are marked vector group at name plate of transformer which is represented the actual phase shifting.
Let's assume a transformer which having Dyn11 and other one have Dyn5. 1st one having 30° lagging lv to HV and other having 150° degree.
So what will happen at over all system.?
Hi miss! Great explanation, my question is that, does the primary voltage have a phase difference of 90 degrees to the induced secondary voltage? If not then why
I1 lags V by 90 degrees
E2 & E1 lags I1 by 90 degrees
Therefore E2 lags V by 180 degrees
@@letslearnelectricalenginee4671 wow tysm I didn't expect you to reply so fast xD
@@letslearnelectricalenginee4671 Miss last clarification, is V and primary alternating current in the same phase?
@@letslearnelectricalenginee4671 ohh thanks agaain
Always welcome
One word awesome explaination 😘😘😘😘😘
Your response mean a lot to me..
Thankyou so much 😊
this was exactly what i was looking for :) you're a good teacher!
Thanku...
U made my day😅
Feel free to ask any doubts
What is the difference between EMF nad VOLTAGE mam
Firstly It’s a very good question
The term Emf is related to source like a cell or transformer or a generator whereas the voltage depends on the load connected.
If I connect a 2V battery in series with a resistor, then what u have across the terminals of battert is called emf and what you have across terminals of resistor is called Voltage or potential difference.
Both have the same unit- Volts
@@letslearnelectricalenginee4671 9
You are so good. Clarity in voice and you explanation is superb
Thnq🤗
Question: when resistive loads are connected to the secondary, will the phase shift of secondary remain the same or will the phase angle decrease from 180 degrees? pls explain
Great explanation maa'm..thank you so much 😇
So what is different between Dy11, Dy1 & Dy0
It's great explanation mam
Thanks for sharing this
Way of explanation also too good
Very very excellent ❤️
Thanq so much
Awesome!!! It deserves more likes!!
dear madam here is some questions in my mind
1 what happened if the phase-shifting angle changes? let's suppose the first angle was 30 degrees which change to 45 degrees?
Sorry can u please elaborate the question?
Tell me about 120 degree phase angle
THANK YOU SO MUCH GOD BLESS YOU :)
what is the importance of phase shifting in the power system?
why did we need it?
When we are exchanging power between power centre’s, for example, we need phase shifting so we can decide which country will send the power.
Good explanation mam, keep making more videos.
What's happen when Q1 = Q2
I'm so grateful to this lady for that explanation....🥰...she deserves a kiss...💋 ....💕
Being from mech dept, when two quantities are opposing each other, they should be 180 degree apart.... What is your opinion?
Thanks.
Yes I completely agree with u but Pls note that electrical angle is different from mechanical angle
@@letslearnelectricalenginee4671 Thanks for your prompt reply. If you don't mind, kindly explain "electrical angle" shortly?
Thanks.
Ok first coming to your doubt
Even in electrical circuit also when two currents are flowing in opposite directions they oppose each other just like how forces act !!
Here the two quantities will be 180deg apart as you said…
Whereas here the quantities are 90deg apart… one quantity is not opposing another quantity rather it is opposing the change in the other quantity hence this is a completely different case
@@letslearnelectricalenginee4671 Thanks for your kind clarification. It makes little sense.
U r explaining well
Tq madam great explanation,
Glad that it’s helpful 🤗
Thank you
IN single phase transformer what is the phase shift between primary and secondary?
You are right and you have very very good experience of law's . thanks
dear madam here is some questions in my mind
1 what happened if the phase-shifting angle changes? let's suppose the first angle was 30 degrees which change to 45 degrees?
You can adjust the power flow by changing the phase shift angle
very clear explanation.
could you please explain why transformers have vector group? and why it has 30 (leading or lagging) degree phase shifting?
Thankyou
And Sure I’ll make a video on this topic and post it in a while
Stay tuned...
to the point mast explain kiya
i like your teaching style.Thankyou.
Thank you mam
Why don’t you upload more of these electrical engineering videos it would be great 👍.
Sure...
Y don't you suggest me some topics...
Let me know which subjects and which topics you have doubts and I'll try my best to make videos on that
very good mam
Thank u so much
🤗🤗🤗u r always welcome
Mam E1 or E2 same phase me q hai ye smjh nhi aa rha
Here E1 is self induced emf due to current I1 and E2 is mutually induced emf due to current I1. Since both E1 and E2 are due to current I1 both are displaced by the same phase angle from Voltage V.
Jx? or X sub L ///////// ?? a bit confused