On 1/2/17 8:29 AM, Chuck McCown wrote:
I have never seen one or had one installed, but I believe they somehow control a load but I don't know if the load that they shed is directly connected to the meter or if it only controls a remote contactor. Perhaps you could cause an overheat by rapidly cycling a relay controlling an air conditioner. Sounds more like FUD/Fake news to me.
The only thing I've heard of practically is an external connection to load shed a central air conditioner's contactor for peak shaving, which just interrupts the 24V control signal from the thermostat's Y terminal.
I haven't personally seen a service entrance smart meter with a contactor in it to control a 100A or greater service. I suppose some elongated beast could exist (no way a big contactor is fitting into a normal sized housing), but I don't know what the practical purpose of such a thing would be.
~Seth
