watch carefully from time 14:00. Here we are not using the angle of the lagging current, rather we are using the angle of impedance (right hand side triangle, where theta is positive.
To me there is an error in the question. The frequency should be 60 Hz in first line also. At 60 Hz , the speed is 1200 rpm and omega-m will be 125.7 in part (a) also.
@@ElectricalEngineeringAcademy can a generator works on both frequencies i mean 50 hz as well as 60 hz?and how these two frequencies are given in everybook?kindly sir explain this issue?
@@yasirali2618 Generator Frequency (f) = Number of revolutions per minute of the engine (N) * Number of magnetic poles (P) / 120. Since in a particular generator, the poles are fixed during manufacturing, so only by varying speed, the frequency can be changed.
at 14:35 why we wrote sin 36.87 and not sin(-36.87) as its lagging?
watch carefully from time 14:00. Here we are not using the angle of the lagging current, rather we are using the angle of impedance (right hand side triangle, where theta is positive.
why didn't you use the Vφ=EA+ j+XsIA formula for calculation?
Please write video time
@@ElectricalEngineeringAcademy 14:00 in part b of the given example
where from did you get this formula ? In case of Generator EA is greater than Vφ
How to ohmega value 125.7 plz explain sir? & Details
To me there is an error in the question. The frequency should be 60 Hz in first line also. At 60 Hz , the speed is 1200 rpm and omega-m will be 125.7 in part (a) also.
Thank you so much sir ❤️❤️❤️❤️
@@ElectricalEngineeringAcademy can a generator works on both frequencies i mean 50 hz as well as 60 hz?and how these two frequencies are given in everybook?kindly sir explain this issue?
@@yasirali2618 Generator Frequency (f) = Number of revolutions per minute of the engine (N) * Number of magnetic poles (P) / 120. Since in a particular generator, the poles are fixed during manufacturing, so only by varying speed, the frequency can be changed.
What is the book name?
Electric Machinery Fundamentals Fourth Edition by Stephen J. Chapman