Zero Power Factor Characteristic of an Alternator & Potier Triangle

For other lectures, click the links given below:
Power System Analysis (Playlist): Click the link given below
• Power System Analysis
DC Machines (Playlist): Click the link given below
• DC Machines
Synchronous Machines: (Playlist): Click the link given below
• Synchronous Machines
Regards,
Dr. Afroz Alam,
Ph.D (IIT Roorkee),
Assistant Professor,
Department of Electrical Engineering,
Aligarh Muslim University, Aligarh, India.

[@DrAfrozAlam]

Download handwritten lecture notes using the following links: drive.google.com/file/d/1ZpJCZtec-IRLmqKVqdAXtgL_-1eJhP8T/view?usp=sharing drive.google.com/file/d/1zRS-pSN6YhG0nAz7mGj-gKLjAOgEZ6Hx/view?usp=sharing drive.google.com/file/d/1i5o4YS3qseOrvZoWh1r07pJPJsunXtdX/view?usp=sharing

[@surendrakverma555]

Excellent lecture Sir. Thanks 🙏🙏🙏🙏🙏🙏🙏🙏

[@mohammadALI-gj4cw]

Excellent Afroz bhai

[@DrAfrozAlam]

Thank you Ali bhai

[@larrydurante9849]

Dear Professor, right before 18:00, we make the assumption that occ can still be used when the circuit is loaded ( under the condition field current is not changed from occ condition ). So this load condition is a 'light enough' load to still trust the occ ? This makes sense to me but just wanted to make sure. Thank you !

[@larrydurante9849]

where 'light enough' allows for rated armature current...

[@sanketsinha4560]

my super professor!!!!!

[@larrydurante9849]

Dear Professor, Is it because we have not reached the value of armature reaction yet ? and therefore it's similar to OCC or no load and therefore no armature reaction yet ?

[@vineethamorris4774]

Good lecture sir

[@abnersaidrodriguezalonzo7706]

Thank you Sir. for the great explanation. I got the following questions: 1. What should be the size of the inductive load connected to perform the test? 2. Does core saturation affect the values for the parameters measured? Thanks for your videos.

[@larrydurante9849]

Dear Professor, I'm still not sure how we are making the assumption that OCC can be used for anything but open circuit? When we find Er and then intersect with OCC to find field current Ir... what assumption are we making about the physical situation to justify using the OCC to find Ir knowing Er?

[@mohammedayaz9397]

Sir if possible please Solve some numericals on this topic. So that we can understand application of PT method.

[@DrAfrozAlam]

Potier Triangle method for determination of voltage regulation of an Alternator will be discussed (in detail) in next lecture.

[@DrAfrozAlam]

kzbin.info/www/bejne/nHanZKiZp5qFftE

[@vineethamorris4774]

Good morning Sir, Sir what is that small triangle CDB along with potier triangle??

[@DrAfrozAlam]

BD represents the MMF corresponding to Leakage reactance drop.

[@papireddykondam3611]

Sir, Actually in alternators the Ef leads the V, but you drawn Ef lags the V, why

[@DrAfrozAlam]

Here, load is zero power factor lagging.