Perhaps this is a dumb question, but I need some input on the proper use of a current sensor on a 220-240V circuit.
To get an estimate of power consumption, is it necessary to measure the current flow on both legs of a 220V circuit?
Steve Q
What is it that you're trying to do exactly? (in "real world" language, not in electrical panel/circuit language)
I did it using a clamp on meter. I turned off all ccts on the board, clipped the meter in place and started closing ccts, worked fine. If you want both simultaneously, get a clamp on for both sides.What is it that you're trying to do exactly? (in "real world" language, not in electrical panel/circuit language)
I'm trying to get a better handle on where any "phantom" loads might be hiding. I have a kill-a-watt an I have identified how much individual devices consume, but if I add them all up its nowhere close to my power company bill. So I thought I would put at current sensor on the supply line, turn off all the breakers, then turn them on one at a time to see how much each circuit draws under "normal" circumstances. That would give me a baseline. Then I plan to see how the power draw changes throughout the day/week. Its not rocket science, I just wondered what the impact of the 220V appliances would be. I suppose I could turn off all the 220 breakers! Then I would know the power being consumed was due to lights, TV, small appliances, etc.
In order to be greener, I think we have to know where the energy is going.
Steve Q
I did it using a clamp on meter. I turned off all ccts on the board, clipped the meter in place and started closing ccts, worked fine. If you want both simultaneously, get a clamp on for both sides.What is it that you're trying to do exactly? (in "real world" language, not in electrical panel/circuit language)
I'm trying to get a better handle on where any "phantom" loads might be hiding. I have a kill-a-watt an I have identified how much individual devices consume, but if I add them all up its nowhere close to my power company bill. So I thought I would put at current sensor on the supply line, turn off all the breakers, then turn them on one at a time to see how much each circuit draws under "normal" circumstances. That would give me a baseline. Then I plan to see how the power draw changes throughout the day/week. Its not rocket science, I just wondered what the impact of the 220V appliances would be. I suppose I could turn off all the 220 breakers! Then I would know the power being consumed was due to lights, TV, small appliances, etc.
In order to be greener, I think we have to know where the energy is going.
Steve Q
my2cents