What's this thing ?
A GRID ALARM ...
and it works quite well and so simple. This is used while running of your generator during a power outage. When you are running your generator, and you have S1 closed, this little thing will scream and let you know the main power comes back on. I use it all the time when we have an outage.
Here are the parts:
S1 5A switch
TX a 12 volt TX
( actually you could use an old wall wart)
D - A 1A / 100 PIV diode.
PL - a pilot lamp if you keep S1 open you can still see when power returns without the noise.
A - is an alligator clip attached to the line side of the main breaker.
B - is hooked to the neutral.
A GRID ALARM ...
and it works quite well and so simple. This is used while running of your generator during a power outage. When you are running your generator, and you have S1 closed, this little thing will scream and let you know the main power comes back on. I use it all the time when we have an outage.
Here are the parts:
S1 5A switch
TX a 12 volt TX
( actually you could use an old wall wart)
D - A 1A / 100 PIV diode.
PL - a pilot lamp if you keep S1 open you can still see when power returns without the noise.
A - is an alligator clip attached to the line side of the main breaker.
B - is hooked to the neutral.
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