Blown GFC breakers
will a surging Champion 3500 generator blow you circuit breakers in your TT ???? Maybe I should have connected a surge protector to my genny. This happened to me years ago.
Forum Discussion
The current injection method for ground-neutral fault detection is 10+ year old technology. The National Semi/TI LM1851 worked this way. The older Fairchild/On Semi chips have some sort of circuitry that causes a sense amp to oscillate on a ground-neutral fault. TI doesn't disclose the G-N detection scheme in the data sheet for its newer GFCI chips. On Semi's NCS37010 operates with a single CT and contains a DSP. Like so many other things, GFCI operation has evolved to magic chips with very little external circuitry.
