Transient Analysis: Behaviour of Basic Circuit Elements
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- Опубліковано 2 чер 2017
- In this video, we will learn about the transient analysis in the electrical circuits.
So, in this video, we will learn what is transient in the electrical circuits, what is the importance of this transient analysis in the circuit and we will see how the basic circuit elements like resistor, capacitor and inductor behave in this transient.
What is transient:
Whenever you switch on the power supply in the circuit or turn off the supply or anything in the circuit changes abruptly, then circuit takes some time to respond to this new condition and attaining new steady state values. Before attaining new steady state values, it goes through a transition time, which is known as transient. And values of voltage and current during this transient is known as transient values.
The importance of this transient analysis:
During the circuit operation, if anything or any parameter changes abruptly due to some surge or spike, then due to this abrupt changes, there could be a circuit failure or components failure. And to investigate this failure one needs to look into this transient analysis that how voltage and current across the circuit elements changes during this transient. So, if we do this transient analysis then we can design the circuit in such way that it can withstand such abrupt changes.
Apart from circuit stability and failure analysis, in switching applications also this transient analysis is quite helpful.
The behaviour of basic circuit components during transients: (Initial conditions)
Resistor: It responds immediately to any rate of change of voltage or current in the circuit.
Inductor: It opposes the instantaneous change of current.
So, if no current is flowing through the inductor in steady state condition in the circuit, and suddenly if the voltage is applied to that circuit then inductor will act as an open circuit during this transient.
Similarly, if the current I is flowing through the inductor in steady state condition in the circuit, then if you remove the source from the circuit, then inductor will continue to provide current I just after the removal of the source and acts as a current source.
In steady state condition, it will act as a short circuit.
Capacitor:
Capacitor opposes the instantaneous change of voltage.
So, in steady state, if no voltage is applied across this capacitor and if suddenly voltage is applied to this capacitor then it will act as a short circuit.
Similarly, if voltage V is applied across the capacitor since a long time and if suddenly this voltage source is removed then the capacitor will act as a Voltage source with V volt just after the removal of the source voltage.
In steady-state conditions, this capacitor will act as an open circuit.
Timestamps for the different topics in the video is given below.
0:40 What is Transient?
1:59 The importance of the Transient Analysis in the Electrical
Circuit.
3:01 Behaviour of basic Circuit components to this transient (R, L, C)
This video will be helpful to all students of science and engineering in understanding the concept of Transient in the electrical circuit, and how basic circuit components behave during the transient.
#TransientAnalysis
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Finally got it ...I was searching for English lecture 👓
Really admire that someone took time to write proper Captioning! I understand that its difficult to teach in a second language and this makes it easier for all parties, great insight. Thank you very
much!
Man that was one heck of a video.
Really appreciate your work!
Why can't useful and productive videos like these be in my recommended? ;(
Excellent As usual!!!
Thank you very much I was happy with the anatomy of the DE solution : PI + CF
Really awesome job. You can teach better than many of the teachers of world's top ranked universities.
Thank you so much for this video ..... very productive work ... thanks again
Best explain all time 👌💯...
Best explanation for transient analysis ..
tnx man, greetings here from Philippines
Excellent as always..... thank you
Great Video!!! Thank you very much for making it. I couldn't remember if the inductor was a short circuit at t=0. :)
Thanks bhaiya. Aap please e acha kam continue rahkhiye aur hamare fundas clear karte rahiye...
Great explanations, thank you. I have a few suggestions. I suggest you connect resistors appropriately on your circuits and avoid short circuiting voltage sources and open circuiting current sources. For example at 4.27 the circuit will obey the explanation you provided at switching moment (that is inductor current=Zero) but in long term it will short circuit the source causing theoretically infinite current. This can be avoided if you connected a resistor in series with the inductor.
Excellent lecture sir thanks you
Thanks sir for better understanding
Thank you very much sir...
This channel replaces all colleges
Excellent sir:)
Superb sir thanks
Hats of man.❤️
Good explanation....
Excellent video
Thanks good explanation.
So nice thanks
Great explanation 👍
Loved it bro ! Simply superb video .. it brings interest in the subject & makes it too simple
thank you for saving me
nice video!!! informative
Excellent sir
7:41 its short circuited .
Good explained
nice i learned a lot
Good explanation
boht accha padhaya ........
Excellent
Mantap salam komsel nyimak sahabatku lanjutkan perjuangan 👏👏🙏👉🔔
good explanation
Thank u sir
Amazing sir
Even better than iit teachers
Ps : I'm from iit patna
thanks
thank you so much for sharing this video, when are you going to post your next video, plz do post it as soon as possible...
Yes, I will post the next video as soon as I can.
Sir what is the software you are using for recording and to write
Your accent is very good...
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-Thankfully there's subtitle provided; Thank you subtitle :)
At 5:43 i think you meant short-circuit not open circuit.
I just wonder if inductor at t=0+ acts as open circuit, but why the current can flow trough the circuit?
Sir, which software you use to explain any topic ?
Telugu lo chepta baga ardamavutundi
immediately after switch is closed , supply voltage will appear after some finite time?
Thank you sir 😊
Sir which software did you use to make this video??
Erm... I dont understand the linear differential equation part. How did you get that equation?? Does q = voltage source?? And what does p stand for??
Can you give one example of circuit in which inductor act as current source ????
Sir ...the same ans can we write for transient analysis for wavelets?
It is so hard to understand their accent. sheez! But I think that what he is saying has a sense and can be a great help to those who understand
Tq❤️
Charles Proteus Steinmetz, has a great book with amazing lectures, about transients and impulses. it's from 1911. I have several videos on my channel on the lectures of C. P. Steinmetz. He describes electricity from the perspective of how Nikola Tesla understood it.
Sir very helpful vedio but 1 and 2 number vedioes are not given sequantially, please do it right.
Could u plz give a proper definarion for transient
Whenever a circuit is switched from one condition to another ,either by a change in the applied source or a change in her circuit elements ,a transitional peroid during which the branch currents & element voltages changes from their former values to new ones.This peroid is called TRANSIENT.
I've read the book practical electronics for inventors , too hard and I don't understand the integration parts and more ,thats why im here
At 7:40 you told slight mistake...but written the right things
Hi sir what is the meaning of short circuit parallel to current sorce. According to kcl applied at t= infinite the final value will become short circuit current+ current source value. I mean to say why we write that symbol -it's confusing
What it indicates is, the voltage across it is zero. Because the voltage across the inductor can be given as V = L di/dt.
In steady-state condition, di/dt will be zero due to constant current. Therefore, V = 0.
I hope it will clear your doubt.
samaj me nhi aya.. but I appreciate your teaching :)
Capacitor act as a o.c n inductor act as a s.c under steady state at Dc voltage ,,but how its act under Ac voltage
Hey are u alive now
Tq so much and also u will upload the resistance condition on t=0,t0+,t=infinite
The value of the resistor will remain the same. (At t=0, t= 0+ or at t = infinity)
Before going to subject , please explain t=0-, t= 0+, t=infinity, what is steady state, they help for somany viewers
t=0- is the condition or the state of the circuit, just before the transient occurs.
t=0+ is the time just after the transient has occurred.
And the steady-state is the state when the circuit has achieved new steady conditions, where the voltage and current in the circuit will not change with the time. (For DC circuits)
Usually transient gets over is a very short time, (typically in a few ms).
For practical purposes, even after a few seconds, the circuit achieves steady-state behavior.
Hello Sir, if capacitor can be seen as voltage source, then if it is shorted, there will be infinite current as t->inf, am I correct?
No, actually once the capacitor gets fully charged then it will act as an open circuit and no current will flow through it. Untill it is fully charged, there will be a flow of current through capacitor. Please go through other videos on transient analysis on the channel. You will get it. In case, if you still have any doubt then let me know here.
U will tell to ones indeter as a open ckt and short ckt on video also u will write means desply short ckt but u will say open ckt
I need help with a question, can you help me
sir what is your reference text book ?
You can refer fundamental of electric circuit by sadiku and network analysis by van valkenburg.
Thank you sir.
What is steady state
For electrical circuits, it is the state where voltage and current in the circuit are not changing with the time and becomes constant (For DC sources) then it can be said that the circuit has attained the steady state condition. In transient time, the voltage and current used to change with the time in the circuit.
At 7:43you said that inductor will act like a o.c in steady state but at 8:20you said that it acts like a s.c .....
At t= 0+, it will act as an open circuit while in steady state or theoretically at t = infinity, it will act as short circuit.
12:00 it will be t=0-
But appreciate ur teaching style.
thank you.
Please someone explain what he said at 6:53
Once the transient period gets over, the current through the circuit elements or voltage across the element remains constant.
@@ALLABOUTELECTRONICS Sir please tell me a thing i am a computer scinene student in second year i dint study es in first year(online) and now i am not abel to understand anything in elec what can i do
Bhai jara dekho tho inductor open circuit hotha when there is no voltage source at t=infinite
VL= L(di/dt), So in steady state or at t=infinity pe di/dt =0 hoga. (And usi liye usi steady state kehte he). So , voltage across inductor zero hoga, means woh short circuit hoga.
I hope you understood.
Is capacitor doesn't allow sudden changes!!
Yes, capacitor dosen't allow instanteniuos change of voltage.
But my teacher says
Capacitor allows AC blocks DC
Yes, That is true. But here I am talking about the transient. When there is the sudden change in the voltage, like when you are turning on or off the power supply.
at 7:43 is it O.C or S.C..you said it is O.C but it represents S.C plss refer it and answer me
It is Short Circuit actually. At t= infinity, as there is no change in the current, di/dt = 0. And hence VL= L*di/dt = 0. It means the inductor will act as a short circuit. I hope it will clear your confusion now.
"Stready Straight.."
Kahi likh lia h Kya....Jo padhe ja rahe ho
Sir can you help me with this problem : www.quora.com/How-do-I-solve-this-problem-as-I-am-getting-confused-when-the-initial-current-or-voltage-is-given i would really appreciate as i am facing problem when initial current or voltage given in a circuit.
i lost you at 7:07
7:40, you wrote Short circuit current but said open circuit.
this is an part of extinguish part of bullshit. I'm not able to understand it
same here too bro...unable to understand anything....hes going too fast
Dude u must correct your English first
Thank u sir