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Country Discussion Topics
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Portable generator hook up?
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dave 50 8n    Posted 12-19-2002 at 15:10:27       [Reply]  [Send Email]
After going w/o power for a few days and feeling very campy, am checking out a portable generator tonight.

How is it hooked up? Is 6,000w enough?

My guess is that you fire it up, and plug it into a 110 socket that will light up that circuit fed by the 110 line coming in.

What we really need it to do is to be able to run the well, the fridge, and the TV/VCR and some lights.

Problem is, I dont' know how big my well pump's got lots of water down there, but we pump like 15 gpm. I know you gotta temporarily exceed the amps rating to "kick start" it.

I found the link on generator below, but it doesn't addressthe 220 v. well pump. I know I'm kinda "shooting in the dark..." pun intended, but that is where I am.

Thanks for any advice.

Howard    Posted 09-18-2004 at 19:42:32       [Reply]  [Send Email]
You can always pull your meter can off the house by cutting the clip and removing the ring and pulling the meter can. This is for emergencies only. I had to do this after a huuricane, just in case the power came back on. The power company employees thanked me for doing this.

Red Dave    Posted 12-20-2002 at 06:03:38       [Reply]  [No Email]
I apologize for being blunt, but, before you kill yourself or some innocent electric company lineman, call a qualified electrician.
As unsure of this as you sound, you will sleep better knowing it's done right.
Yes, you can kill a lineman with an improperly installed generator.
The statement "My guess is that you fire it up, and plug it into a 110 socket that will light up that circuit fed by the 110 line coming in." Scares me.

thanks for the advice...    Posted 12-19-2002 at 22:19:50       [Reply]  [No Email]
It's being well considered!!

dave 50 8n

DeadCarp    Posted 12-19-2002 at 20:30:52       [Reply]  [No Email]
The big hazard in generators is to ABSOLUTELY isolate the whole wiring system from the power company's grid first, (I'd REMOVE the meter) lest they resore your power while you're fiddling around and fry everything.
Next consideration is that the house wiring is divided into circuits and the small wire for any given circuit couldn't feed the whole place. So you'd need to tap the generator into the system near the main panel or somewhere to have the circuit breakers where they'll still protect the little wires.
With luck, you could concievably rig a double-male plug to connect a house line to a generator but they're illegal cuz they're so darn hazardous. I like the knife-switch Smitty suggested - anything that only lets you use EITHER the grid OR the generator.

Spence    Posted 12-19-2002 at 19:39:56       [Reply]  [No Email]
I'd get the peak current rating for a 220V 1 hp motor then using Ohms law p =ei you have power = voltage X peak current. Chances are it's
a 1hp or less.

If it rates with the cap of your 220V generator, plug her in by itself and see. If it trips it's too much draw and you'll have to come up with something else. If it works use the rest of the power for lights only.

Bob /Ont.    Posted 12-19-2002 at 20:11:10       [Reply]  [Send Email]
Spence a 1 Hp motor powered by 240volts needs 6.5 amps to run at load and has a 35 amp inrush.
Later Bob

Spence - Watch Out For....!!!    Posted 12-19-2002 at 19:28:22       [Reply]  [No Email]
During the ice storm of 97, we volenteered
by setting up generators for homes so they could get their furnaces going for a few hours. Then we'd go on to the next.

Make sure your main house breaker is off before you plug in that generator, otherwise
when your power is restored you may zap your generator or some household appliance.
Some generators have a reset, but I wouldn't count on it.

shane wimer    Posted 12-27-2007 at 12:05:54       [Reply]  [Send Email]
I want to run a breaker box from a portable generator just to feed the lights. There is no power coming in from any main lines at all. Is there and way to go from a regular plug on the generator to the lugs in the panel box?

JIM    Posted 03-01-2007 at 08:54:34       [Reply]  [Send Email]

JAMES    Posted 03-01-2007 at 08:52:01       [Reply]  [Send Email]

TB    Posted 12-19-2002 at 17:04:24       [Reply]  [No Email]
The size of generator will depend on things like how deep and what size pump you have and the amps it draws. Plus your other loads
Most pumps are 240v so whatever generator you get wants to have a 220V plug breakered in the generator at almost the total amperage the generator will put out. For example a 6000W generator with a 240V plug should that is breakerd at about 25amp, this is in the generator.
Now to hook it to the house you must have a transfer switch of some sort or you could fry some poor sole working on the power lines. I went with a panel similar to the one in the link below as a sub panel. It has a main breaker and a generator breaker that are interlocked so you canít turn one on without turning the other off. Plus it has spaces for your essential circuits. A good supply house should have something similar. You should get an electrician to make sure you are hooking things up right or just get one to do it. PLEASE donít just plug it into the house and into the generator and think all is well.

Mike    Posted 09-09-2003 at 13:23:12       [Reply]  [Send Email]
Are you saying throwing the main breaker in your service panel to off and then backfeeding your generator into a 220v Welder outlet in your garage is not safe.

dig    Posted 12-19-2002 at 16:58:36       [Reply]  [No Email]
Find yourself a qualified electrician to hook your generator up! You don't just plug it in to the nearest outlet and have everything work. I don't know where you live, but in WI you have to be off the power grid before you can use a generator. That means you need a switch on the power side of your main panel to isolate it from the electric company. A well is usually 220 volt, ~40 amp and there's all kinds of regulations about hooking up the pump because of (possibly) mixing water and electricity.

If you just want to run a couple of lights and a refrig then you can plug an extension cord into the 110 volt outlet on the generator and run off of it. Make sure it's sized large enough for the distance the generator is away from the house and the load on the circuit. When it comes to extension cords, the bigger the better.

Smitty    Posted 12-19-2002 at 15:51:31       [Reply]  [Send Email]
I have a 8kw/10 kw surge generator for my house from Craftsman made by Generac. I have used this generator for 4 years now and am well satisfied. I run my well, freezer, refridgerator and whole house with it. As for wiring it in I have a box between the pole and the circut breaker box with a 3 way knife switch 1 for power company, 1 for total disconnect and one position for generator. I went to the knife switch as it is very much less expensive than a transfer box except it is manual rather than automatic. I run everything except my PC off this system because the variation of a generators output will sometimes blow out a PC.
Hope I have explained this well if not ask questions.
The generator cost around $2,000 and has paid for itself allready.
The reason for the knife switch is to separate power company from generator as the electricity will go back the power lines and shock some one working on the lines.

Salmoneye    Posted 12-20-2002 at 02:05:30       [Reply]  [Send Email]
For the PC, get yourself a 'line stabilizer' and hook it upstream of the power strip for the puter and is basically a 'capacitor-in-a-box' and will dump extra power to the line when the incoming juice 'browns out'...will also buffer over-voltage to some extent...

PC's used to be very touchy about line voltage variations, but the newer rigs are nowhere near as susceptible to surges as they once were...My Sister runs her PC off a 5000 watt genny when she has to with no problems...

Les...fortunate    Posted 12-19-2002 at 15:23:06       [Reply]  [No Email]
I'm not sure about your well pump situation but 6KW is certainly way more than enough to keep you comfortable. I would think half that capacity would be adequate.

Short Round    Posted 12-19-2002 at 17:11:53       [Reply]  [No Email]
Dont know the hp of your well moter, but a 1hp motor is rated at 746 watts and can draw more on start up. Have someone who knows what their doing hook up your generator to your power supply. You have to be REAL careful about back feeding the power co. lines. Lot of linemen have been killed by backfeeds from homes and farms. The power companys transformers dont care with way the voltage enters, they just transfor it up or down. Good luck.

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