Heat element & shore gfci
Hello Shore gfci questions here. Like many others I now have an issue when plugged into shore power gfci at home (I've used this same outlet for 5+ yrs and tried another circuit to confirm this out...
Forum Discussion
dougrainer wrote:
This is from FLUKE corporation, Electronics tester maker. Doug
A GFCI uses a current transformer to detect the difference between the line current supplied to the load and the neutral current returning from the load. Ideally, this difference should be zero because both currents cancel. If there is a current differential, it becomes the input to a comparator within the GFCI, which changes states when the differential is around 6 mA. When the comparator changes states, it triggers a silicon-controlled rectifier, which disconnects the power from the output of the GFCI.
While that is true, it is not the only test that a GFCI does and that is not the only condition that will trip one. They did not give an exhaustive description of GFCI usage.
You are usually correct, but you need to study up a little more on this particular subject.
As a test, plug a generator bonding plug into a modern GFCI outlet and it will trip. There can be no current differential between the hot and neutral pins because nothing at all is connected to the hot pin.
