Non-Sinisoidal Power Supply

Ask your parents for a library card.

I can understand lyn that you dont know the answer. Thats why you are diverting the issue.

And I understand that you are too lazy to use a search engine.

There is some wisdom in Lyn's approach.

A fundamental understanding of electromagnetism and early development electricity will provide the answer you are looking for.

If you feel you already have that understanding you might want to revisit the subject. The historical events alone should provide you a solid clue.

My second opinion is the same as my first.

http://cr4.globalspec.com/thread/100329/Non-sinisoidal-power-supply

You seem to know enough about electricity to be dangerous, but not enough to know why. Look at this → LINK ← Study it thoroughly and by the end Phase V, you will have a good understanding of electronics and why things follow certain rules.

Good luck

OOOOOOOH. THAT might take some work, and maybe give him a headache. But he's a "2nd year BCE" (??) so he SHOULD already know that.

Hm. Curiouser and curiouser. Do TROLLS study anything?

Wait a minute here. Where did you hear about this guy pursuing an engineering degree? The best questions he's proposed seem more like an intuitive eighth or ninth grader instead of somebody that should be graded on their knowledge of the Taylor expansion and the Fourier transform.

Then again, even a clever eighth grader should recognize their spellchecker telling them that they misspelled "sinusoidal".

#13

It came straight from the horse's mouth.

I just read that entire thread. He is even more dangerous, stupid, conniving, lying, and idiotic than I thought.

What is he REALLY? He surely isn't educated, nor intelligent.

Unbelievable.

AND he either can't read, or won't, even when someone is giving him the answer to his question.

Give up, guys. His brain is LONG dead!!!

Seeing how poorly he takes criticism and his inability to understand a technical answer, I think the engineering claims are purely false bravado claims in an attempt to belong here at CR4. For his sake I hope that he is an eighth grader trying to act older and more experienced than he has a right to claim. From what he's demonstrated so far the only engineering degree he might have is one purchased from a paper mill.

That's why I finally lost it and took the time to post this

http://cr4.globalspec.com/thread/99996#comment1080314

If he's willing to learn from his mistakes then I'm willing to help, but he has to learn to perform his own basic research himself or we will be answering his work related questions in the future.

First, you really should not repeat a question on a forum. Ignoring the stated rules of a forum will just produce more friction with the regulars. I'll grant you that your question in this thread is better phrased than the other thread that Rixter pointed out. However, violating the rules without either an apology or explanation is rude. I and many others here are getting very tired of your poor netiquette.

Second, like your earlier question about an oscillator, you've stumbled onto a very astute seemingly simple question that requires more background theory to fully explain than you realize. The simplest and dominant reason that a sine wave is the waveform used to distribute power is the kinematic geometry of a generator.

The coordinates of a point that goes round and round in a circle, like generators and stuff, are sine/cosine curves. Understanding the round and round part is usually easy, but maybe not the sine/cosine part.

Simply because it is generated lhat way. That way is the natural way to generate power in a rotating machine: the generator.

To generate a square or a sawtooth wave requires a much more complicated outfit and the long distance transmission losses would be fenomenal.

Not to mention the fact that while the waveform would be incredibly "dirty", as it lost the outer frequencies making up the form, it would tend toward a sine wave anyway. But, as you noted, with a lot of energy losses along the way.

Think about how a piston in your automobile, or any engine powered mechanism, goes up and down as a function of time. This is the same path that your AC power supply takes, only it happens 50 or 60 times per second, depending on what country you are in. Think about the destruction that would occur if you were to attempt to power your lawnmower engine or auto in a square or ramp pattern.

Excellent Answer, Professor Sir Robin, that'll definitely get the students to put their noses in the books. Perhaps some knowledge will rub off on them along with the ink.

Yeah. It's not the constructive phase convergences that will get you, though they can be a bit of a problem as well, if amplitudes get boosted into runaway oscillation range, but the destructive convergences will eat your lunch.

UMMM, crunchy pistons. AND hot copper windings.

To paraphrase Bill Cosby, at the Dentist "Smobek, I smell SMOBEK!"

The power (electricity) is transmitted in the form of sine wave, since it is more advantageous then other waveforms, so sinusoidal has been made choice to choose. However u have questioned a very nice one, keep posting this type of posts fyn