120VAC 60Hz Microwave step-up to 240V w/transformer

[BLUE STEEL]

In an effort to balance larger electrical loads, I'm trying to convert my boat's appliances to 240v split @ 60Hz.

It's nearly impossible to find non-commercial 240v microwaves that aren't designed for 50Hz.

Wondering if there are any reasons I shouldn't consider a cheap-ish toroidal transformer to feed the 120V microwave with 240V from my inverter?

This is the model I am considering:

VEVOR Voltage Converter Transformer 3000 Watt Up/Down Transformer 110/220 Volt with US/EU Outlet 5-Volt USB Port CE Certified DYZHQ110V230VX4UMV1 - The Home Depot

3000 Watt Step Up Down Converter Transformer. This new VEVOR voltage converter transformer achieves 110/220-Volt bi-directional voltage conversion, applicable to most countries ft. voltage interchange,

www.homedepot.com

The combi microwave draws 1500W max.

As always, I appreciate the input from TF!

 

[Choices]

Just use a 240/50 microwave. Only the timer and clock will be off. Probably find one that is 50/60 hz and 120/240v

Allot easier than what your considering.

 

[tiltrider1]

I really don’t understand what you are trying to do? Why are you going to be a 240v only boat. Why can’t you be a 125/250v boat?

 

[BLUE STEEL]

The boat has an autotransformer with a 28A max imbalance (continuous).

The marina includes electricity in the monthly moorage, so I heat the boat with 120V space heaters in the winter. These heaters cycle on/off with their thermostats, swinging the neutral imbalance around.

By controlling that swing on other appliances that aren't base load, I don't need to worry about overloading my AT while microwaving something if it is presenting a balanced load.

I suppose I could move the heaters to transformers and that would be a better solution.

It's far easier (and cheaper) to find 120v space heaters and appliances in North America,

 

[tiltrider1]

One way to do this is to split the 125v panel so the microwave is getting its power from L2 while the heaters continue using the L1 source.

 

[rslifkin]

You could also parallel a second autotransformer to support a larger neutral imbalance.

 

[BLUE STEEL]

You could also parallel a second autotransformer to support a larger neutral imbalance.

This is my eventual dream - plus a parallel Multiplus to double my charge/invert capacity!