Hi Sir, this is me Gaurav of 2016 batch, currently working with Voltas - Projects Division (Electrical). Your online videos are a great source to recapitulate important topics in electrical engineering and the use of digital interface makes it so easy to understand them.
sir your speak so easyly..that after watch your video..I feel why I don't find in youtube before the year..only say to you thanks from heart not from mind.
Very nice video sir. These concepts are not taught in engineering colleges. I read in engineering textbooks about the core and copper losses being the reason for rating of transformers in VA which makes no sense. Keep making such videos sir as it greatly helps knowledge seekers in electrical domain.
Sir you are showing the message of stay focused and on the other side you are repeatedly showing the popup of subscribing the channel...I think this popup is not letting the viewers stay focused on what u are teaching...any way the concept u are prividing is very good.
Losses and load of both are reasons for the kva rating and both are true for alternator and transformer.... A manufacturer can never ignore losses or temp rise. Change in secondary current due to load pf is also related to cu loss and hence temp rating.
Hi sir ur videos are very attract and easy to understanding. plz upload all topics in order wise it is very useful for preparing govt jobs.i hope u upload soon
Sir.. inspite of having power losses in transformer.. why it is called as constant power device.. is there any approximation since the losses are comparatively low ...
Sir.. Can u explain why ohms law is not applicable in transformer..? And also.. Why live ct secondry side cant open circuited.. Bt in pt it is possible.?
Sir, Now a days as the usage of Inverters are enormously increasing because of work from home for Software proffessionals and also online classes to all the students, is there any return current through neutral to Electricity Board lines. Please Explain.
Sir u said that if we specify transformers in kW then it becomes problem ....and u said that suppose the transformer current capacity is 200A and voltage is 1kV then if we use different loads as u said at 1pf 200A,for .5pf 400A and so on, but loads should be within 200A usage ..otherwise transformers damage...then how it will not affect kVA specification and affects kW?in kW also 200A is used !
Sir please make a video on how and why reactive power came into picture, why inductor consumes reactive power and capacitor injects it. Please sir do it.
It really is a sign convention as to why that is. We could've defined the sign on reactive power for it to have been the other way around. The physical reality is that inductive loads cause current to lag behind voltage. Capacitative loads cause current to lead voltage. In otherwords, a capacitative load draws current in advance of the voltage waveform that drives it. Reactive power is due to energy storage methods inside the load, that store energy for part of a cycle, and release it at another time in the cycle. Capacitors store energy in the electric field, inductors store energy in the magnetic field.
Sir, Why does generating station rating given in kw and Electric vehicle's battery rating given in kwh? Note. Both the sources, supply the rated power for one hour.
You said reactive power means power returning from loadside to source, due to that power factor was reduced. If power returned from consumer then why EB gives penalty for poor power factor?
Sir As u said form factor doesn't matter for 11kv 33kv 66kv 132kv if consumers end is 10kv 10% is for cover losses then why we use 11kv transformers plzzz reply sir
Because when A manufacturer build a transformer he/she don't know about the future load so it build on the basis of unity pf. Second reason in transformer iron loss depends on voltage and copper loss depends on current so it's worthy to have KVA rating to find out %loss.
@@ThePiSquareAcademy Thank you Sir for your response....Sir A Humble request to you kindly cover all machine topic series wise which can help us in our GATE and ESE exams...I believe you are unique on this platform specially in Machine type subject...
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The consumer don't know the type of load which we are going to connect
Inductive Capacitive or resistive load can be connected and finally he don't know the power factor of load
I mean manufacturer😲
Yes, absolutely correct
Sir plz upload videos on synchronous machines
Hi Sir, this is me Gaurav of 2016 batch, currently working with Voltas - Projects Division (Electrical).
Your online videos are a great source to recapitulate important topics in electrical engineering and the use of digital interface makes it so easy to understand them.
Appreciate his effort for explaining basic engineering principles. Well done. Keep it up.
Proud to be Indian
Dude! You can have millions of reasons to be proud to be an Indian but that certainly has nothing to do with an CZcams video done by an Indian. Lol
No no we have so many things to be a proud for being Indian but hear proud to be an electrical engineer
I am over whelmed sir, i was looking for this answers explanation but couldnt get satisfactory answer. Today i understood. Thank you!!!
Spent 2 hours watching videos on the basics of this subject just to find this guy easily explain it in less than 10 minutes!
You are an amazing EEE Instructor! Please do upload again.
sir your speak so easyly..that after watch your video..I feel why I don't find in youtube before the year..only say to you thanks from heart not from mind.
Sir we are waited for long days...
Please update weekly one video ..😊
Very nice video sir. These concepts are not taught in engineering colleges. I read in engineering textbooks about the core and copper losses being the reason for rating of transformers in VA which makes no sense.
Keep making such videos sir as it greatly helps knowledge seekers in electrical domain.
sir pls make a video on " why we can't store ac power in batteries'
Hit like if u want also
Thinking avg power zero
electrolysis does not happen in case of AC supply
beacause AC voltage it's changing direction, but electrons in battery have to metge in one direction from minus (-) to plus (+)
Battery me diode laga do
I wish there was such channel for Mechanical Engineering.
Pretty effective.... Easy and Nice explanation.... Love from Bangladesh....
Wow. Thank you for explaining it in such a smple way.
Sir, can you explain why small wind generators rated in kW not in kVA?
sir i am very happy thank you so much sir i will pray for you and your family you are doing very yyyyyyyyyyyyyyyyyyyyyyyyy good job
Great video as always. One correction: at 7:43, not mechanical energy but mechanical power, measured in HP or kW.
Yes, you are right, its mechanical power unit is HP;
This lesson is directed at advanced learner. Much basic knowledge must be known first.
Great 👍 learning experience through your videos, I am a certified control panel design engineer for UL508A panels
Very Nice sir ...keep uploading such videos frequently
Sir very much needed video for us.thank you so much sir..
Sir you are showing the message of stay focused and on the other side you are repeatedly showing the popup of subscribing the channel...I think this popup is not letting the viewers stay focused on what u are teaching...any way the concept u are prividing is very good.
Thank you Nikesh, i will inform our team to manage them properly. Thank you for the feedback.
Great sir for giving amazing explanation of concepts....
Keep it up sir
Sir please upload videos every week as we are waiting a long time for your videos.
Thanks for nice video . Explaining battery capacity in AH is very short & sweet---. Thanks again
Sir can you explain How Generator Produce Different Loads on same RPM?
Best explanation ever... 👌👌👌
Very nice teaching process
Losses and load of both are reasons for the kva rating and both are true for alternator and transformer.... A manufacturer can never ignore losses or temp rise. Change in secondary current due to load pf is also related to cu loss and hence temp rating.
very neatly explained, I'm getting more knowledge from your channel.
thank you sir
You are very conceptual 👍
Please fully explain about name plate details of transformer ,motor& alternator
This channel is very useful
Hi sir ur videos are very attract and easy to understanding. plz upload all topics in order wise it is very useful for preparing govt jobs.i hope u upload soon
really very nice explanation
Great explanation sir
Very interestingly described the things. It just like spoon feeding, even common man can understand. Congrats.....
Thank you very much. For this video. Really I learn a new topic specially Battery specification.
Excellent explanation with animation for everything displayed. Nice work. Keep it up. :)
Please make video on classification of electrical machines
Sir.. inspite of having power losses in transformer.. why it is called as constant power device.. is there any approximation since the losses are comparatively low ...
Sir please upload a video about working of tertiary winding transformer.
Ur classes is awesome sir
very good explanations
Superb explanation ....
Your explanation is superb and easy to understand.
Keep it up Sir.
Quality of explaining the concept...wow🕺🕺🕺🕺🕺🕺🕺
Excellent explanation bro...
Thank you so much 🙂
Please deliver a lecture on Vector groups of transformer. How to verify the same?
Dear Sathe, it is already available in our channel. Check this czcams.com/video/Tjfw2ZH9Nkk/video.html&ab_channel=PiSquareAcademy
Nice explained sir.. Please make video why we use 2 wire and 3 wire devices.
Very informative video
Thank you sir for information
great teaching....dis is a real teaching..
Sir
Please do a vedio on Current transformer ratio calculation
Thanks for battery answer
Very good class
Sir.. Can u explain why ohms law is not applicable in transformer..? And also.. Why live ct secondry side cant open circuited.. Bt in pt it is possible.?
Nice explanation .
Sir, your videos are very helpful.. Plz post videos regularly.
Thank you very much for your nice explanation..I expect more..
Beautiful ly explained.
Thanks I was really waiting for it sir🔥💢💥
Sir upload working on transformer ideal case nd practical case nd wt hpn if u give low input frequency..
Pl. Prepare video for current surge & voltage surge , how surge protector work.
Understood super and simple definitions...
Nice explanation
Thank you so much.. keep it up
Sir, Now a days as the usage of Inverters are enormously increasing because of work from home for Software proffessionals and also online classes to all the students, is there any return current through neutral to Electricity Board lines. Please Explain.
Waiting for the video sir
I'm waiting for video
Wow... Wonderful...
U are really amazing sir
Excellent presentation.
So sir in exam if I will write that it's due to losses than it will be wrong? Btw great explanation.
Very nice and instructive videos. Just love it. Keep uploading :)
Sir u said that if we specify transformers in kW then it becomes problem ....and u said that suppose the transformer current capacity is 200A and voltage is 1kV then if we use different loads as u said at 1pf 200A,for .5pf 400A and so on, but loads should be within 200A usage ..otherwise transformers damage...then how it will not affect kVA specification and affects kW?in kW also 200A is used !
Even Transformer rating in 200KVA (1KV,200A) , How to draw the Current of 400A and 800A ???
Sir please make a video on how and why reactive power came into picture, why inductor consumes reactive power and capacitor injects it. Please sir do it.
It really is a sign convention as to why that is. We could've defined the sign on reactive power for it to have been the other way around. The physical reality is that inductive loads cause current to lag behind voltage. Capacitative loads cause current to lead voltage. In otherwords, a capacitative load draws current in advance of the voltage waveform that drives it.
Reactive power is due to energy storage methods inside the load, that store energy for part of a cycle, and release it at another time in the cycle. Capacitors store energy in the electric field, inductors store energy in the magnetic field.
Why the comment section is disabled in the explanation video for why 11kv 22kv 33kv and so on?
Sir, Why does generating station rating given in kw and Electric vehicle's battery rating given in kwh? Note. Both the sources, supply the rated power for one hour.
You said reactive power means power returning from loadside to source, due to that power factor was reduced. If power returned from consumer then why EB gives penalty for poor power factor?
Only active power i.e. KW power consumed is billed not kvar power. So, EB will be most happy with unity power factor i.e. purely resistive load.
@@giridharmaji4417 good answer
@@giridharmaji4417 But I have a boubt if we use at low power factor the kw is low and kva is more. Is we get required power to our applicances
Superb sir..
Sir please upload on synchronous machines
But In some transformers it is mentioned "kVHT", why?
Sir accorind to u product of secondary vol¤t. reult of kva .i have DTR secondary vol 0.433&33.33A.
But my transformer is 25kva...how is possiblee
Very good explanation boss. Clr voice.
Plz upload kva single phase tranformer...
Thanks 👍
Superb....
Good explanation sir.
But on what basis manufacturers will decide Power factor of induction motors
very nicely explained. Thank you :)
Sir, teach us load forecasting techniques and GF nature prediction techniques!!!!!
😉
He can't teach...those..
Exlent sir
Sir
As u said form factor doesn't matter for 11kv 33kv 66kv 132kv if consumers end is 10kv 10% is for cover losses then why we use 11kv transformers plzzz reply sir
Because when A manufacturer build a transformer he/she don't know about the future load so it build on the basis of unity pf.
Second reason in transformer iron loss depends on voltage and copper loss depends on current so it's worthy to have KVA rating to find out %loss.
Yes! Jitendra, you are correct
@@ThePiSquareAcademy Thank you Sir for your response....Sir A Humble request to you kindly cover all machine topic series wise which can help us in our GATE and ESE exams...I believe you are unique on this platform specially in Machine type subject...
Best informative video
Sir make an app with your videos. It will be very much helpful to us
Waao.. outclass sir
Great explanation
Great respect on you sir
Make video on current transformer