In question (time 12:34) u have considered untransposed line. That why u have not used the concept of GMD and GMR. Am I correct.? 2.if nothing is mentioned in question what should we consider -transposed or untransposed??
A 3 phase, 220 KV, 50 HZ transmission line consists of 30 mm diameter conductors spaced 2.5 meter apart in the form of an equilateral triangle. If the temperature is 38⁰C and atmospheric pressure is 76cm. Calculate the corona loss/km of the line. Assume the irregularity factor as 0.83.
In question (time 12:34) u have considered untransposed line. That why u have not used the concept of GMD and GMR. Am I correct.?
2.if nothing is mentioned in question what should we consider -transposed or untransposed??
Very good lecture Sir. Thanks 🙏🙏🙏🙏🙏
A 3 phase, 220 KV, 50 HZ transmission line consists of 30 mm diameter conductors spaced 2.5 meter apart in the form of an equilateral triangle. If the temperature is 38⁰C and atmospheric pressure is 76cm. Calculate the corona loss/km of the line. Assume the irregularity factor as 0.83.
Sir..in 13.44 ....ln(1/2)=--ln(2)...so Negative sign will be coefficient of j term...I think so..its correct or wrong
Explain why the horizontal arrangement is better as compared to
when conductors of the same phase are placed in the same horizontal plane.
Sir i have doubt in directional relay based question.in numerical section...How can i ask that question ??
In an untransposed 3 phase transmission line a positive sequence current may cause a negative sequence voltage drop??plzz explain sir
Ans is given " yes it will induce " came in ese 2002 .plzz explain the reason
What is the significance of imaginary term in the expression of inductance
Sir
For inductance due to 1st conductor in calculation part I think imaginary part will be -ve such that (-j0.866ln2)
@@lecturesinelectricaleng sir time
At 13:47
@@lecturesinelectricaleng okk sir thank you
Sir...in video 3.33 how the current lagging by 120 deg...pls explain
@@lecturesinelectricaleng ok Sir...Thank you so much
sir how did you get j0.866= j root 3?
√3/2 is 0.866 and here the 1/2 is taken to power of log
Sir
Time at 13:47
thank you sir
Provide formula to find Inductance 1,3 phase
Thanks sir