110 60 hz to 220 60 hz

[Lightnin1960]

Anybody know where you can get a step up transformer that you can power 220 volt item off 110 volt but both voltages has to be 60 hzs. Either the entire unit or the plans where you can build one yourself
Thank you

[kawalekm]

I bought one at a local electrical supply house. It was for powering my 110V computer overseas. What you need is a real transformer that doubles/halves the voltage. Their size goes up with their wattage, so expect to buy something that weighs about 1-1.5 lb for each 100 watts of power. That is, something that will put out 1000 watts of power can be expected to weigh 10-15 lbs or so. Make sure you buy one that says step up and step down voltage. That means you can use it to power a 110V item in a 220V country or a 220V item in a 110V country. Here's an example of one.
http://www.voltageconverters.com/itemdesc.asp?ic=VC300W
Good luck,
Michael

[machinemaker]

What are you trying to opperate and what is its current draw, (amp rating). It it is an electric motor, most are wound to run off of either 110 or 220. If this is the case look at the leads of the motor, (where you connect the power). If you are in the US you probably have 220 if you have 110, so check your breaker panel. If this is the case of you want to run a tool out in your garage that is wired 110, it might be cheaper to run another 220 line to it then buying a transformer. If you really need a transformer or want to check prices you might want to check at www.grainger.com.
kent

[12vman]

Take your pic.. ;)

http://www.voltage-converter-transformers.com/step-up-down-transformer.html

Just remember that you are limited to half of the total input that you can produce..

[Lightnin1960]

Thank for the info... yes I'm in NC and want to run stuff like my welder, Air Compressor, Water Heater, off my inverter which is 110 volt 8000 watt. and use a step up to 220 but has to be 60 Hz. From what I'm getting from here it's cheaper and easier then paring 2 inverters.

[12vman]

What input voltage do you plan to operate your inverter at? 12? 24?

Do you realize the current demand the inverter is going to need? Do you plan to operate the inverter from a battery? How do you plan to charge your battery if you are going to have one?

Example..
If you have an inverter that operates @ 12 volts D.C. and you push it to its limit, (8000 watts) the current demand is going to be 667 amps! Now this just the conversion to 120 V.A.C. with an 8000 watt load. If you apply this amount of power to a step up transformer, your load limit will be half of your maximum input potential. (4000 watts) This would be the absolute maximum load that you could operate anything if you had a step up transformer that could handle that kind of wattage..

A 5 H.P. motor @ 220 V.A.C. (Standard air compressor motor) will require around 1863 watts under load. Work it backwards.. Times 2 = 3726 watts @ 120 V.A.C. This would be the direct load on your inverter. The demand of the inverter from a 12 volt battery would be around 310 amps! (Not including any losses in the inverter or the step up transformer)

Just some food for thought.. ;)

[keydl]

Each conversion ( inverter, transformer, battery ) will cost 10% or so of the power available.

A gas powered welder with a generator function -Lincon Weld&Power, Miller Bobcat can be found starting around $800. A Lincon Pipeliner 400 brought $800 at auction last month, but it has 110 V DC.

A water heater is not usually on the list to run from batteries, very high priced hot water.

[kawalekm]

Thank for the info... yes I'm in NC and want to run stuff like my welder, Air Compressor, Water Heater, off my inverter which is 110 volt 8000 watt. and use a step up to 220 but has to be 60 Hz. From what I'm getting from here it's cheaper and easier then paring 2 inverters.
Didn't you post this question a few months ago? I thought we did a good job of pointing out that this was a silly idea that was just not going to work.

Your typical hot water element uses at least 2500 watts, and most heaters have two. That's 5000 watts from batteries! You really need to come back to earth and have realistic expectations as to what you can do with solar or wind.

[Lightnin1960]

The inverter is a 12 volt.

Right now I've got 26 6 volt batteries. I'm making one 12 battery bank and thinking about making some smaller banks too.

I'm planning on using some solar and converted Alternators to do some of the charging.

If I can and have enough time I'm planning on building a solar water heater

Thanks

[keydl]

Running the water heater on 110 cuts the watts in half and doubles the recovery time. But heat is still considered a dump load.

Another way to run a welder is strapping batteries to 24-36 v and fine tuning with a choke coil. Having the cables on the truck I would pull 3 of the 4 hook them in series and start burning rod, now there is a spool gun and flux core wire.

There are air compressors for hopping cars that do well on 12 v

For solar hot water just strip the jacket and insulation off of an electric water heater, paint it dark green or black and put it behind a patio panel in an insulated box. Open the lid to the sunshine. Close the lid at night or when the temperature drops so the water is warmer than the box.

[Lightnin1960]

Thank you them are all very good ideas