"Generator Capability Curve" derived from its basic phasor diagram. The video is for quick understanding about the operational aspects of a synchronous generator.
Amazing how much can be explained in a 7 minute video, I have been reading about this for 2 weeks and slowly loosing the will to live! Good work, very helpful.
A small doubt: is there a single phase synchronous generator? I believe not, so I suggest instead of multiplying by the term v/x at 2:11, multiply by 3v/x assuming it’s 3 phase as it’s the most commonly used practically. Correct me if I am mistaken, thank you.
Mr. Kumar if it is possible, could you explain the efect on the MVAR due to excitation current and MW due to the turbine torque, that will be really helpfull, thanks again.
i have explained the whole phenomenon of MW building in synchronizing torque video in my channel, the load angle decides the MW and the load angle adjust itself by the help of primemover whereas MVAR depends upon grid loading conditions, AVR regulates it as per the requirement by changing the excitation current, by increasing excitation magnetic flux increases, followed by increase in induced voltage & viceversa
Ok , the over-excitation limiter is restricted by the max field current , and the under-excitation limiter is confined by the maximum power angle of operation right???
Hello sir, I don't know whether you are going to read this comment or not ,but my doubts is which factor (P or Q) changes when we say load is changing. This doubt arises because in most of the books it is mentioned that either load is contant or excitation emf is constant. It will be very beneficial if make a video regarding this issue..thanks a lot for such lectures
ABHIMANYU RAJBHAR Due to the fast action of AVR Q seems constant. Reactive power flows due to the difference in magnitude of voltage between two points of the power system. AVR is able to maintain constant voltage always. So, Only P changes. Change in Q is negligible and pf remains 1
I have a doubt sr.. U are saying reactive power absorbing and delivering but why .what do you mean by this 🙏Because what i have read till is reactive power neither absorbed nor delivered it just oscillate back and forth bw source and load... Please explain this .....
During day time the loading of grid is higher. So the reactive power absorbed by these total loads is higher than the reactive power supplied by line capacitance. These extra requirement of reactive power affects the operating point at capability curve
I think I know that. The generator sends reactive power during daytime, because the Harmonics Injecting Loads are in excess amount during the day. There is core saturation due to harmonics. Reactive Power is needed to compensate that. But at night, (when we are expected to sleep), there's no need to supply that extra reactive power. thus the generator receives and operates in the second quadrant. i hope i am correct but please confirm ;-)
This teacher deserve gold medal.👏read so many books not understood but this 7 min video ..made me understand at once.👏👏respect for this sir.
Never thought someone could explain the Capability Curve in seven minutes. Thank you very much!
Amazing how much can be explained in a 7 minute video, I have been reading about this for 2 weeks and slowly loosing the will to live! Good work, very helpful.
Best explanation on the generator reactive power capability curve so far !
PERFECT EXPLANATION, THANKS LECTURER !
really sir, I found the best explanation on PQ curve .. Ever !!!
Bhai bhaut sahi cheej bataye ho......tumhare channel ek dum unique Laga....wo cheej touch ki h tumne jo koi padata hi nhi.....keep going brother
This is a massive SUCCESSFUL effort
Thanks a lot for such a concise explanation..
Atis ...Badhia explain kalu... Keep it up..
Really very useful vidoes for electrical engineers... Kindly share rotor earth fault also...
thank you...you have been of great help
Very lucidly explained...thank u sir.. please upload more videos.
awesome explanation. wud never forget the concept now. thanx
plz explain few more topics like...rotor r/f & pole slipping protection.
Thank you sir for your clear explanation
Sir u are really awesome, u did great job 👍
Spot on and concise!
Thanks alot for your clear explanation
thanks a lot to you good explanation ,
interesting video sir thank u so much
Thank you so very much..please share more of such videos
Thanks a lot sir... Clearly explained in few mins..
Excellent work
This was awesome.. Wow! Thank you!
Thank you so much Sir 🙏
Great explanation
thanks a lot... great
Awesome, more 2 come?
Very good. Thanks 🙏🙏🙏🙏🙏
Superb
Thanks
thank for explan !!!!
thanks sir
May Allah bless you💕
But why did you multiply each term by V/X? what is the theory behind that?
A small doubt: is there a single phase synchronous generator? I believe not, so I suggest instead of multiplying by the term v/x at 2:11, multiply by 3v/x assuming it’s 3 phase as it’s the most commonly used practically.
Correct me if I am mistaken, thank you.
Safiya Jassim In the video, per phase represtation is done.. for more accuracy ofcourse u r correct.. 3 has to be multiplied
It is multiplied to convert voltage plane into power plane or P Q plane
Thanks i lot for your awnser mr kumar i really apreciate it, ill be awaiting for more of your videos
Mr. Kumar if it is possible, could you explain the efect on the MVAR due to excitation current and MW due to the turbine torque, that will be really helpfull, thanks again.
i have explained the whole phenomenon of MW building in synchronizing torque video in my channel, the load angle decides the MW and the load angle adjust itself by the help of primemover whereas MVAR depends upon grid loading conditions, AVR regulates it as per the requirement by changing the excitation current, by increasing excitation magnetic flux increases, followed by increase in induced voltage & viceversa
Atis Kumar I believe the same capability curve apply to synchronous motor
Ok , the over-excitation limiter is restricted by the max field current , and the under-excitation limiter is confined by the maximum power angle of operation right???
Helloo MR KUMAR :Is this valid for both cylindrical and salient pole synchronous generators?
Hello sir, I don't know whether you are going to read this comment or not ,but my doubts is which factor (P or Q) changes when we say load is changing. This doubt arises because in most of the books it is mentioned that either load is contant or excitation emf is constant. It will be very beneficial if make a video regarding this issue..thanks a lot for such lectures
ABHIMANYU RAJBHAR
Due to the fast action of AVR Q seems constant. Reactive power flows due to the difference in magnitude of voltage between two points of the power system. AVR is able to maintain constant voltage always.
So, Only P changes. Change in Q is negligible and pf remains 1
👌
best way anyone can explain
If possible kindly Explan on loss of excitation related
Awesome
Rihan Gavandi ek number 🤘
sir can you provide video for under frequency and over frequency causes of generator ???
Mr kumar may i ask V/X what it stands for??
I have a doubt sr..
U are saying reactive power absorbing and delivering but why .what do you mean by this
🙏Because what i have read till is reactive power neither absorbed nor delivered it just oscillate back and forth bw source and load...
Please explain this .....
Why is that line inductance dominate over capacitive part during day and it's converse during night?
During day time the loading of grid is higher. So the reactive power absorbed by these total loads is higher than the reactive power supplied by line capacitance. These extra requirement of reactive power affects the operating point at capability curve
I think I know that. The generator sends reactive power during daytime, because the Harmonics Injecting Loads are in excess amount during the day. There is core saturation due to harmonics. Reactive Power is needed to compensate that. But at night, (when we are expected to sleep), there's no need to supply that extra reactive power. thus the generator receives and operates in the second quadrant. i hope i am correct but please confirm ;-)
ok, it is partly included by the 'overcurrent' label'
please explained with small example.
missing the upper limitation, absolute active power (horizontal)
Sir.... Noone explanation in this way... Within 7 min , you are simply explained about generator capability curve....
OK
WHAT IS Ix
anand swami , I multiplied by X is the voltage drop due to reactance, i is current & x is reactance
Sir camera is too shaky!