Buck Boost Transformers for loads requiring neutrals
Buck Boost Transformers for loads requiring neutrals
(OP)
I've been thinking of using a buck boost transformer to boost from 208V to 236V single phase for a 230V stove that requires a 120/240V 50A receptacle. GE recommends using these transformers for some of their appliances.
The obvious concern is that the appliance requires 120V for lighting and controls, and one of the legs will be around 136V. If only the 120V leg is used for lighting and controls there should be no problems.
This doesn't exactly seem proper to me, but it is apparently common practice. Anybody care to comment with regards to safety or code compliance?
The obvious concern is that the appliance requires 120V for lighting and controls, and one of the legs will be around 136V. If only the 120V leg is used for lighting and controls there should be no problems.
This doesn't exactly seem proper to me, but it is apparently common practice. Anybody care to comment with regards to safety or code compliance?






RE: Buck Boost Transformers for loads requiring neutrals
However with what you are talking about will provide high voltage to the controls, which is concerning as many new stoves use solid state technology and they may not like this. However if that is not a problem, use 130 V light bulbs.
RE: Buck Boost Transformers for loads requiring neutrals
These appliances are routinely used on 208/120 V systems. The controls, lights, and 120 V receptacle (some stoves) all have proper voltage. The heating elements put out reduced heat and take longer to reach set point, but will otherwise operate fine.
RE: Buck Boost Transformers for loads requiring neutrals
RE: Buck Boost Transformers for loads requiring neutrals
RE: Buck Boost Transformers for loads requiring neutrals
If you must use the boost transformers, then add a 120:240 transformer inside the stove to supply the controls. You may have to "break out" the control circuits from the incoming neutral. Some elements use 120 volts on the lower settings. You don't want to feed those loads from the small control transformer.
Forget warranties.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Buck Boost Transformers for loads requiring neutrals
Is there a place we can see this particular GE recommendation on line?
RE: Buck Boost Transformers for loads requiring neutrals