[R-390] GFCI issues

[rbethman]

I used Mr. Hacksaw.

I can now look at the circuit inside.

The Hot and Neutral are wound through a toroid.

There are a pair of wires coming out of the middle of the toroid. They 
go to a solenoid.  That solenoid, when it moves, trips the mechanical 
switch inside the GFCI and opens the circuit!

It is definitely a Rube Goldberg thing to look at - but it DOES work!

This is the GFCI that I removed from the Old Hair Dryer.  It has NO 
ground!  It is a two prong device.

Bob - N0DGN



> On 2013-03-20 02:37 PM, rbethman wrote:
>> Actually, it senses the current differential between hot and neutral.
>>
>> It may seem tp be picking nits, but that IS how they do this. As
>> another friend, an EE that works this field extensively explained, it
>> should trip if a simple 15K resistor is put across hot, black, and
>> neutral, white.
>