Recent content by Entrepreneur

Jim This was a good proposal and indeed this is what I will do. After measurement etc. I will post the results. I will take a picture of my oscilloscope waveform (I am just as curious to see the wave form) and submit. I am NOT a physics / electrical boffin, and many have told me the...

Sound like a do-able idea - thanks!

Didn't consider that - good tip!

Totally off topic, but interesting nonetheless. Thank you.

i didn't measure AC current because of the limitations of my multimeter.

Yes, I was as surprised as you are - my wife happened to find a small incandescent 10Vac globe. The loaded (output V) was 8.5Vac - made the globe glow - when I measured the V while glowing it was 4.5V ?

Jim, the rotor is the outer part. [6-pole rotor & 4 pole stator.] The 6 x neodymium magnets are fixed to the inside of a cylinder which rotates (9 rev/s or 540 rev/m) around the 4-pole stator which is fixed on a shaft. OPTION A The idea is to get the maximum voltage and current (within...

I concede - it cannot be wound as a sensible alternator / generator, but that is all I have to work with. A 6-pole rotor and a 4-pole stator.

Yeah, it may look like it ? So I guess you don't know about the winding direction ?

1 Ø = single phase (given) Yes, but AC rectification is not important at this stage (in Question 2 Vrms & Irms still need to be calculated) the gaps between poles are not important at this stage the coils ARE on the stator (rotating outer cylinder with magnets = rotor) stator is where the...

I attach an image of something I am experimenting with. The picture itself (and added text) should be self-explanatory. 1) Which way should my windings (clockwise or counter-clockwise) go around P1; P2; P3 & P4 for maximum voltage (V) ? [ 1 Ø ] [ 1 x single enamelled copper conductor ] [...

The shaft (stator) is fixed and stationary - the roller (rotor) (yellow cylinder) is rotating. The shaft needs to be wound armature-like and the magnets need to be fixed on the roller's inside. (magnet layout)

I intend designing a 3 phase AC generator. Thereafter I need to build it. Believing in "a picture tells a 1000 words", I am very much a "pictures" person, and as my studies in the electrical field were completed many moons ago, the formulas are now "forgotten" - so thus I want to approach this...

Thanks anyway !

I need enough power to supply 3 x floodlights (500W ea) ...alternatively I would connect more than one roller (parallel) to achieve this. I would like it wound as a 3 phase generator yes ! (even if the volts generated is less than required - then the next step would be to connect more than one...