Re: Emergency generator

Posted by zuhnc on September 11, 2022 at 21:21:52 from (174.210.1.172):

In Reply to: Emergency generator posted by 37 chief on September 08, 2022 at 13:23:02:

All very good information EXCEPT item #4. No generator "sinks" power internally. How can you sink internally 10KW worth of power? Sinking internally means the generator is running loaded ALL the time. The regulator only provides the proper output voltage, load or no load, and does nothing else.

Your electric company produces power. If power usage goes down, the POCO doesn't "sink" the excess - it is just available, but not used.

30 minutes under at least 1/2 load would get the engine hot enough to drive moisture from the oil, and run fresh fuel through the carburetor. If running on LPG (highly recommended), no carburetor to gum up, and the oil and engine components remain a lot cleaner, as stated.

As to running on LPG, if your tank is large enough, it will gain enough heat to vaporize the liquid. The primary and demand regulator control fuel flow, not the pressure in the tank. It is possible, though, to have too small a tank running too large a generator. Under those conditions, not enough heat enters the liquid to vaporize, and internal pressure will drop. Eventually the tank will freeze, and there will be no pressure to run the generator. Once the tank gains enough heat to unfreeze, pressure will return. But, continued uperation will cause the cycle to start again. Numerous documents on the web explaining how LPG vaproizes and how the regulators work to suply the generator with proper fuel quantity.

I do admire someone who lives off grid (and has enough funds to run a generator to power everything). It would be solar and no generator for me, however.

The proper term is "backfeeding" That is connecting the generator directly to your panel, with no isolation means, and frying the lineman trying to restore your power. As stated DO consult a qualified electrician and your Authority Having Jurisdiction for proper installation of said UL-listed isolation device.

(I have been working on and repairing all sorts of generators and automatic/manual transfer switches for longer than I care to remember; at least since 1976. BUT, I am NOT a licensed electrician, so YMMV.)



This post was edited by zuhnc on 09/11/2022 at 09:38 pm.

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