Re: GFI
The quote refers to a 15k resistor and there is two of them
When you first open one of them up, by removing the 4 screws the first thing you see is a solenoid
which opens the contacts, on a ground-fault or by pushing the test button. The solenoid is energised by a switching transistor which is fired by an OP-Amp, when the op-amp gets its input from the torroidal coil which senses/monitors the unbalance between the hot/Neutral.{According to the man.there can be aleakage as high as 2.5 ma}.
They fail in the close position because the solenoid is toast.
the one I got here is a Hubble the strange part of the sensing coil is there is a white wire and a bare wire passing through the torroid.
sparkyoh
Yes, Hurk, thats correct but the above post was referring to the test mechanism, was he not ?
The quote refers to a 15k resistor and there is two of them
When you first open one of them up, by removing the 4 screws the first thing you see is a solenoid
which opens the contacts, on a ground-fault or by pushing the test button. The solenoid is energised by a switching transistor which is fired by an OP-Amp, when the op-amp gets its input from the torroidal coil which senses/monitors the unbalance between the hot/Neutral.{According to the man.there can be aleakage as high as 2.5 ma}.
They fail in the close position because the solenoid is toast.
the one I got here is a Hubble the strange part of the sensing coil is there is a white wire and a bare wire passing through the torroid.
sparkyoh