# MSW inverter sine wave in an off grid power system

#### musselbeach

Joined Dec 18, 2011
5
When I bought the Generac 7kv propane generator which I have installed, it came with a transfer switch which is designed to switch from hydro to generator when hydro drops out.
I thought I maybe able to hook up my solar,wind,battery power system through a 24vdc to 220v ac modified sine wave 5000 watt inverter which I have already bought. but when I received it it only had 2 wire output not the 220/110 split phase output needed? it has 4 universal plugs for the 220vac output (only 2 wires hooked up) but they are parallelled up from 4 diff. cct boards.
I am not familiar with the design but in the instructions it says it raises the 24vdc to 300vdc then converts this using advanced MOSFET transistors in a full bridge configuration. It also says its capable to start and run difficult reactive loads.
I am wondering if I bought a 220v to 220/110v split phase transformer and put that between the inverter and the transfer switch. The two 110v legs need only to supply about 1000 watts each.

#### jimkeith

Joined Oct 26, 2011
540
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#### musselbeach

Joined Dec 18, 2011
5
Yes I have rec'd a quote from them already but they want over $400 plus shipping of another$100 plus which is a little to much for my budget.
I think I will try and get one of those chineese 220 to 110 5000 watt transformers they are selling for the people that go back and forth from America to Europe they run around $100 plus shipping unless I can find one to buy on Vancouver island where if it craps out I can take it back. I could always Just conect 2 sides of my electrical panel so it all runs off 110 volts. I would also have to only use 1/2 of my 220v propane generator. I could all ways switch it back when I can afford a proper 230 volt grounded center tap neutral inverter which will run me over 2000$.
What do you people think??
Hey I realy apreciate all your inputs.
Ron