Generator and Small Engine Q and A with James Condon and Gary Bernacki LIVE!

[@Thib2003]

Ken, thanks a ton for arranging these live q&a's. Excellent work my friend

[@KensSmallEngineRepair]

They call me the Stream Queen lol

[@Thib2003]

@@KensSmallEngineRepair Yea, not there's anything wrong with that 😎

[@rbedwar12]

James..watch your videos all the time...great..learn alot

[@8675steve]

Your daughter's cameo was awesome!!

[@wallyhandyman]

sorry i wasn't able to get on when you guys went live with this one great show the three of you make a great stream awesome info hope to see you guys again.

[@CaliRootstoTennesseeBoots]

Ken great q and a. Did you have to change your hosting program?

[@KensSmallEngineRepair]

That day was my last Paid Streamyard Live. Now I will use Restream

[@mattyal9347]

This takes me back to jr high when I got the algebra classroom thinking it was the bonehead math.

[@KensSmallEngineRepair]

@@mattyal9347 I went through math all the way up to advanced calculus and linear algebra. I actually have a minor in quantitative analysis when I did my undergrad. I’ve always loved math!

[@mattyal9347]

@KensSmallEngineRepair i guessed that about all of you guys. Electronics and mathematics seem to go hand in hand.

[@KensSmallEngineRepair]

@mattyal9347 if I’m not mistaken, Gary and James Never went to school for electrical or electronics, they picked it up based on their need to fix something

[@mattyal9347]

@KensSmallEngineRepair really? That is interesting. There might be a chance of me getting this old Sure Weld welder up and running then!

[@Thib2003]

Could you offer input on how the generator capacitor requirements are calculated by engineers?

[@KensSmallEngineRepair]

I’ll ask James and Gary

[@Bassguitarist1985]

Cap size is selected based on a few things like nominal voltage output, winding resistance, and inductance values of the spinning rotor. Even the stator specs are considered to a degree, more so on higher quality power heads to mitigate THD. The spinning rotor is an inductor and if it's brushless with a cap, it's essentially an LC filter. If it is not tuned properly using the right size capacitor, the rotor can cause excessive electrical "ringing" which contributes to high THD. The stator laminations and coils are oppositely tuned to cancel this ringing, but it requires much more precise design and machining for manufacture, which in turn increases the cost.

[@Thib2003]

@@Bassguitarist1985 Yep, there's always a tradeoff. I guess that higher THD translates into high-heat problems as well. Thank you for your help.

[@KensSmallEngineRepair]

What he said lol

[@Thib2003]

@@KensSmallEngineRepair yep, good answer. Thanx😎

[@johnmolnar2957]

Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz), an international unit of measure where 1 hertz is equal to 1 cycle per second. Hertz (Hz) = One hertz is equal to one cycle per second.

[@Thib2003]

Would replacing a 35uf cap with a ~40uf capacitor give improved voltage adjustability?

[@Bassguitarist1985]

It won't improve stability. The higher the uF rating, the higher the voltage at the outlets.

[@Thib2003]

@Bassguitarist1985 Got it. I just thought this option would get me closer to a target 120vac at 60hz at near a full load. Thank you for your help.

[@Bassguitarist1985]

@@Thib2003 increasing the microfarad rating will increase your unloaded voltage and under load voltage should not sag as much. I'd stick to whatever the part number specifies.