Amplitude of Harmonic

[yassser]

Hi guys

I want to know how to find an amplitude of harmonic order,

I have 3rd harmonic, 14 Amplitude , Phase 0 and Frequency 150

I want to know where that 14 came from plz , and why the phase is 0.

Many Thanks for you ALL

 

[pmac10]

the 14 is the amplitude of the voltage in the third harmonic, the 0 means it is in phase with the fundamental harmonic.
v=A0+A1cost+A2cos2t...etc+B1sint+B2sin2t+etc
A0 is the DC equivalent of the waveform and thats as far as i'm going, last time i did one of these calculations resulted in 2.5 sides of A4 paper in calculations including integral calculus and just remembering it making me feel sick

 

[RexT]

Hi all,

Hope I dont look silly here but if you are saying this is the third harmonic and the frequency is 150 Hz would that mean that the fundamental is actually 50 Hz? Does that help? I guess we are talking true harmonics and whole not something I heard about called enharmonics?
I was told that the problems with harmonics was summing of values in the lines being put into the neutrals and I guess that is one of the points of the calculations.

Sorry Yasser, cant think at the moment due to a heavy day...

Best wishes,

Rex