I worked for a company that builds railroad equipment that uses 50Hz.

Their solution for the lab was to couple the shaft from a 110/220 motor to
a small 50Hz generator, bolt it to a platform and stick it up in the rafters.

-----Original Message-----
>From: Mark Scoville <mscoville@unicontrolinc.com>
>Sent: Jul 6, 2009 11:09 AM
>To: "Microcontroller discussion list - Public." <piclist@mit.edu>
>Subject: [EE] Generating 120Vac 50Hz
>
>Hi Piclisters,
>
>I have a project at work that I need to test while powered from 120Vac 50Hz.
>All I have available in the USA (Cleveland, Ohio) is 60Hz. Does anyone have
>any clever and inexpensive ideas for how to generate 120Vac 50Hz? I need
>about 4 amps to do my testing.
>
>So far my thought is to buy a "Modified Sine" inverter ($100) that runs off
>12Vdc and produces 220Vac at 50Hz. Then I could step down the 220Vac using a
>transformer (which we already have). It's not very elegant, and not ideal,
>but this is only needed for a few days of testing and then will probably sit
>on a shelf for 20 years getting dusty.
>
>Anybody have any other ideas besides a really long extension cord to a
>country that uses 50Hz.
>
>-- Mark
>
>
>
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