Yes. In some cases, they will give rating of single phase transformer. Based on the winding connection we need to calculate for 3 phase. Also winding connection is mandatory for zero sequence network representation which will come in later stages of this subject
Are you using current in that equation? According to your equation you have only Vb and Sb as given values. In that context I told. If you are using V and current to find Zb then accordingly equations will change
Mem your videos are too much helpful. very simply and easily described. thank you so much for helping.
From Bangladesh.
good lictur go on
Nice explanation madam
20:16, In Per -unit reactance of motor, you have taken (MVA)B,new = 30 but the given value is 25? can you explain this mam?
U r tootorials are exalent madom.
Your teaching is 100 times better than my lecturers 🙏
thanks mam , for going such detail
it really helped a lot
Super explanation mam 👏👏
Mam can Same question we slove by impedance also
Very nice 👍 explanation mam
Tq so much
Befor seeing this video i think am not able to understand P.U.
SYSTEM
Excellent 👌 Madam.
Very good explanation
Where were you 😂, I’m so glad I found u yhoooo I’ve been having difficulties in this per unit stuff so glad I found u
Very nice expalination
Mam your way of teaching is excellent,but views are very less😢
Yeah even I felt so 🙂
Actually she deserves much
Madam in some text books calculate p.u reactance using old and new values of mva,kv^2
What is difference between these two methods
Yeah me to have the same doubt
This formula used when , reactance is provided in Pu system in question
does the star and delta connection have any effect?
Yes. In some cases, they will give rating of single phase transformer. Based on the winding connection we need to calculate for 3 phase.
Also winding connection is mandatory for zero sequence network representation which will come in later stages of this subject
@@psumalatha5659 ok thank you
Mem aapne T2 ke liye delta connection me Zb=3*Vb^2/Sb nhi liya h , you have to multipley by 3
Yes i have same doubt
@@sumitkunwer6500 bro mem ne wrong kiya hua h , jo tum soch rahe ho vo correct h bilkul
Why we need to multiply?
Why did you get that doubt?
Mam ith ktu syllabus ano??
love you mam
😇
Thank you...
Thank u mam
Thank you so much
Madam, for transformer 2, delta connected side, zbase = 3×Vb×Vb÷Sb
Please correct me if wrong. Thank you madam
Delta side, phase and line voltage is same. So, vb will become phase quantity by default. So, you will use Sb also wrt phase instead of 3Phase
@@psumalatha5659 but Iph =I÷sqrt3
Are you using current in that equation? According to your equation you have only Vb and Sb as given values. In that context I told. If you are using V and current to find Zb then accordingly equations will change
Pleas someone replied