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flatheadmurre · 07-14-2020, 12:36 AM

A cutout is for use on a 3-brush so i assume a typo ??
If you try and use a cutout on a 2-brush you will overload the points and fry it probably to start with...then activating the field with a reostat you will have no correct voltage or any current regulation so besides damaging the cutout your battery is at risk to if run for a longer period of time...since you will either over or under charge it.
You want bench test a cutout in a safe way use benchpower supply and a battery...when you raise the voltage to it should cut in...lowering it should drop out...condition of points needs a load and measuring voltage drop over it.
Why not install a proper regulator ?

07-14-2020, 12:36 AM	#2
flatheadmurre Senior Member Join Date: Apr 2015 Location: Sweden Posts: 3,045	Re: How to test a Generator Cut Out A cutout is for use on a 3-brush so i assume a typo ?? If you try and use a cutout on a 2-brush you will overload the points and fry it probably to start with...then activating the field with a reostat you will have no correct voltage or any current regulation so besides damaging the cutout your battery is at risk to if run for a longer period of time...since you will either over or under charge it. You want bench test a cutout in a safe way use benchpower supply and a battery...when you raise the voltage to it should cut in...lowering it should drop out...condition of points needs a load and measuring voltage drop over it. Why not install a proper regulator ?