kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
There isn't anything that can't fool them into tripping. Even ugly homeowners has been know to cause false tripping
Cutler Hammer Arc Fault
- Thread starter eeliasson
- Start date
- Status
JFletcher
Senior Member
- Location
- Williamsburg, VA
There isn't anything that can't fool them into tripping. Even ugly homeowners has been know to cause false tripping
Congratulations, sir. You have won the Internet. If ONN was more electrical oriented, that would make a great headline:
"Ugly Homeowners Source of Tripping AFCI Breakers"
Electric-Light
Senior Member
AFCI is on the look out for signature current pattern from arcing but this is one of those things computers still suck at.
If you feed the output of a current transformer monitoring a blender through an amplifier and play it on speaker, it will resemble what you hear from the motor.
When you have to deal with automated voice recognition operator on the phone the computer mishears you in ways people don't. The signal processor makes same kind of judgment errors and hears things as arc and make false judgment calls.
If you feed the output of a current transformer monitoring a blender through an amplifier and play it on speaker, it will resemble what you hear from the motor.
When you have to deal with automated voice recognition operator on the phone the computer mishears you in ways people don't. The signal processor makes same kind of judgment errors and hears things as arc and make false judgment calls.
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
An excellent and informative analogy.
It also explains why actual arc detection can be harder with lots of non arc "sounds" on the same circuit.
The only missing thing from the analogy is the current threshold.
mobile
mtfallsmikey
Senior Member
Wonder if it would trip them on all bands if the legal limit were used (1,500 watts)
K8MHZ
Senior Member
- Occupation
- Electrician
So far, the only two bands that seem to bother the AFCI's are 17 and 20 meters. There are probably thousands of full power (or better) stations using high gain antennas, and the problem still seems to be confined to the 17 and 20 meter bands.
mtfallsmikey
Senior Member
Take a transceiver/linear there, hook up a vertical or low-height dipole and try it!
73 de W4KAV
- Status