Static Inverters are used to produce AC power from DC.  The DC power, in this case, comes from batteries.  The AC is producedf by using power semi-conductors to chop up the DC into something that approximates a sine curve.

Erie Aviation, Inc. is pleased to represent L3 Technologies, formerly Wartsilla EUROATLAS, the manufacturer of aviation static inverters.      

Because the AC supply on an aircraft runs at 400 cycles, it is necessary to slow it down so passengers can plug in their razors or other AC devices.  The job of changing the 400Hz AC to 60Hz is performed by static frequency converters.

The term "static" is used to differentiate these devices from the old way of performing such tasks, before reliable and sufficiently powerful semi-conductors came along.  Then, it meant using various forms of rotating machinery - motors, generators, and alternators.

These are all single-phase devices.  The L3 Technologies units are relatively inefficient with a power factor of 0.4 to 0.6, but that hardly matters since they are so small.

Questions about these products, please call us at 1-814-838-8934 or email us at info@erieaviation.com 

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