Need 220V 50Hz Power Supply

[RobF]

I need to do some testing with a power supply that simulates the power utilized in Germany. I need it to be as close to perfect as possible. I'm looking for a converter that is affordable. I've seen inverters but I'd prefer something that ran off of US 120V 60Hz line power. I found one that does all sorts of ranges/frequencies however it's $5k-10k.

Does anyone have any sources for something like this? When I do a search all I can find are power supplies that WORK with 220/50 instead of ones that generate.

I've tried gasoline generators and their frequency is not stable enough to replicate true 50Hz.

Thanks!

 

[itsmoked]

Two logical options you've already touched on.

1) Buy a generator 50 Hz or 60Hz you can crank the frequency down on. I've done that for testing numerous times.

2) Acquire a few batteries and use a 50Hz inverter.

If it's a 3 ph load go the generator route, if it's a 1ph load do either.

If you like spending great gobs of money buy a test source.(generally absurd)

Keith Cress
kcress -

http://www.flaminsystems.com

 

[jimkirk]

Are you talking about something like this?

http://www.home.agilent.com/agilent/product.jspx?cc=US&lc=eng&nid=-536902250.0

Yeah, they're expensive, but you can rent them...

 

[zeusfaber]

Munich is very nice at this time of the year.

A.

 

[itsmoked]

No it isn't!!

9 degrees F is not considered "very nice".



Keith Cress
kcress -

http://www.flaminsystems.com

 

[zappedagain]

When I've had to do this I typically buy a DC power supply that I can run off 110VAC (or use car batteries) and a sinusoidal inverter.

I've had good luck with one of the marine brands of inverters for boats. I can't remember the brand at the moment so I'll post it tomorrow as it isn't one of the brands that pops up near the top of Google.

Z

 

[ozmosis]

what amperage are you needing? and what is it you are testing?
Depending on the type of load (inductive, capacitive) would also determine if a frequency converter could do it.

 

[waross]

Try an inverter generator. Honda makes them. There may be others on the market. These small sets generate DC that is then inverted to AC. The frequency is stable.
Try a small diesel generator instead of a gasoline generator. Small gasoline generators often use a flap in the cooling air path as the control element. The frequency wanders like a rag in the wind. Even the small diesel generators use a centrifugal governor and are much more frequency stable than a small gasoline generator. (But not as good as an inverter generator.)

Bill
--------------------
"Why not the best?"
Jimmy Carter