can inverters be phased this way?

[josah]

I know thins is off the topic a little but I was wondering if it's possible to tie 2 inverts together using the 2 light bulbs.  I know there would have to be a few differences but??? would that work to phase them?

[RP]

no

[veewee77]

It really depends on the inverter. Some inverters are designed to be "stackable" and some can be "stacked" in several configurations depending on needs.

Some can be tied together to be in phase for more capacity on the 120VAC line. For example, if your loads were all 120V and they totalled 2000W, but your inverters were 1500W each, and "stackable" they can be connected together, run from the same battery bank and paralleled to produce 3000W of available power at 120VAC.

Some can be tied together out of phase, making it where you could have two 1500W inverters running from the same battery, but producing 220VAC (or two legs of 120, same as regular household AC).

The inverters used in these scenarios MUST be stackable, the same brand and preferrably with the same software version on them. They will connect to the battery, the load and also have a smaller "data" cable run between them to make the "stack" properly.

Long story short: Unless you but specific inverters for "stacking" it won't work.

Doug

[fungus]

No,

The two lightbulbs trick only really works with rotary generators as the grid can 'lock in' the rotor to its speed. With the electronically switched inverters this isnt the case. As was said; there is stackable inverters available that have another link cable to keep them synchronised.

[RCpilot]

I have a Xantrex Prosine 2.0. It's stackable by buying another identical to this one and using a small cable between them. This causes them to output the voltage 180 Deg out of phase from each other. Each inverter is then used to power one leg of a standard breaker panel, the result: 4000 watts at 240 volt. I only have one right now.