Mod-01 Lec-03 Lecture-03-Modeling of Single Phase Transformers

Electrical Machines-I by Prof. Debaprasad Kastha, Department of Electrical Engineering, IIT Kharagpur. For more details on NPTEL visit nptel.iitm.ac.in
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[@timmacnulty8947]

Sir you did excellent job to breakdown all areas of confusion i used to have on the concept of transformer as an electrical machine. Thank you very much sir for impacting knowledge. No other material has been this clear

[@rajatnegi2268]

my right ear liked this video.

[@blackdog4175]

I kept rotating my earphone from right to left, even I am confused whether I am listening with both ear of only one. #bhowbhow

[@poojasubramani8306]

thanks a ton sir,it helped me alot i'm greatful to u

[@saptarshisahoo5075]

Please rectify the sound.... lectures are so good

[@WomanPowerline-]

should i play this video on a loudspeaker?

[@homiraj971]

Fan off krke headphone laga ke suno😑

[@AtulkumarGupta080796]

Excellent lecture series on transformer. Better than anything else. Thank you sir.

[@paridalipu]

Nice concept

[@assamesetrader9]

He might know everything but he doesn't have the skills to make you understand.

[@shauryapriyal944]

nptelhrd, there is a mistake at the end in the value of I dash 1 and r dash ...due to which further equations are going wrong. kindly look into this.

[@muhammadnoumankhan9735]

Do the transformer have secondary voltage at 90 degree phase shift from primary voltage? Please reply

[@JenishJain6]

sir but all the books shows different phasor diagrams some shows E1&E2 downwards and I2' in antiphase with I2 so this is creating a lot of confusion . sir could you please help me out.

[@amandwivedi4867]

Phasor diagram depends on type of load i.e for resistive load E1,E2, I1 and I2 are in same phase.For Inductive load I1,I2 are in same phase and lag by 90 degree with E1,E2 and for capacitive load I1,I2 lead by 90 degree from E1,E2.

[@Prasannasivved]

my god, I kept my volume at max but I did not get sir voice. I am unable to understand the pronunciation. did anyone face the same?

[@naveenamanchi5406]

Yes same

[@ABHISHEKYADAV-lu5iz]

Best lecture available in KZbin

[@mahmoudhassan.97]

Thank you very much Prof

[@shahravi7390]

go to Settings and change the audio to Mono- so that you can hear properly with your both ears

[@shubhranshushekhar9410]

Sir I have a problem in drawing Phasor diagrams of electric circuits .How to clear my fundamentals regarding this Phasor diagram

[@230lakshmikousalya2]

E1,E2 should lag ...

[@fdalia6573]

at 15.20 , why is It in phase with E1?

[@lokendrabanshiwal7933]

Thanks sir

[@arghyadeepbhattacharjee4610]

sound isn't comming...

[@ahmadeldesokey9844]

Booooooring

[@footballera-i2p]

hi guys. does anyone understand electrical engineering stuff? i need some help with brushless dc motors. and i'm ready to pay for that. I look forward to hearing from you soon

[@saumyayadav6691]

may i ??

[@saumyayadav6691]

@@mr.rachetphilanthrophist601 nice upbringing.😅 It seems you Are such a looser at everything that you try to be happy by doing this. Keep Going. May god keep you looser like this.

[@anandkumarsharma8567]

Boaring

[@JenishJain6]

sir but all the books shows different phasor diagrams some shows E1&E2 downwards and I2' in antiphase with I2 so this is creating a lot of confusion . sir could you please help me out

[@JenishJain6]

sir but all the books shows different phasor diagrams some shows E1&E2 downwards and I2' in antiphase with I2 so this is creating a lot of confusion . sir could you please help me out

[@Mohobatt_man]

+Jenish Jain bhai phir pata chala diffrence kyu aa raha hai phasor mai ?

[@JenishJain6]

Palash Singhai​ actually their is difference in choosing the reference vector you can choose any one of them so bhot are correct the difference just lies in the reference vector.

[@Mohobatt_man]

but in the books the the flux is leading the voltages whereas here the flux is lagging what ever reference vector we choose the flux should lag the voltages

[@JenishJain6]

Yes that's true that's why I am not following this video I just saw it as to clear my other concepts but I do go with the notations that flux should lag voltage . Palash Singhai​

[@JenishJain6]

If you make your own phasor diagram to do share to me to . we both will discuss on it again as I too needed someone to agree with me as the books are offending what I think . Palash Singhai​

[@JenishJain6]

sir but all the books shows different phasor diagrams some shows E1&E2 downwards and I2' in antiphase with I2 so this is creating a lot of confusion . sir could you please help me out.

[@abinessg6895]

bro i too had the same confusion but he is right.let me explain u. see bro we have written a kvl equation such that v1=e1.and e1=Nd(phi)/dt.but books have the equation v+e=0and v=-Nd(phi)/dt.