How to install an AC power monitor to keep track charging energy by month? A sub-$20 small device can help. www.amazon.com/gp/product/B07... 2019-09-29
Excellent video! I believe your video is the ONLY one on the net that shows the wiring for 220 (in North America)! Your wires 3 and 4 connections were what I did not know how to do - Thank you very much!
A good meter but its Amp. range upto 100 A is creating little doubt in mind; that will it work correct for all ranges? And this is showing frequency in Hz, which needs one to two digits after decimal.
great video. still have a question. It shows you only reading one line with the CT. That would only read the current for one leg of the 240 volt ( ie 120 v line current) if i want to read the total current on a 3 wire 240 v system i think i need to put the CT on the Neutral line to read the current for both lines. If i were to put the CT on both Live lines it would cancel as they are opposite phase. Please help me with this question?
Great video! Any reason not to install the voltage sensor to the same breaker that is running to your Tesla wall connector? Did you run the voltage sensor wires to separate A/B breakers just for the convenience of shorter wires? Thanks!
Thanks! It doesn't matter. Since the Tesla charger is 240V, so both A/B hot wires are connected. In this way the current and voltage phases are matched. If it is 120V, it has to be connected to the proper side, either A or B hot wire.
@@bobami5331 he does know what he is doing. I installed the same meter with my Tesla wall connector using his video as refrenece, works great. I think maybe you just didn't follow what he was doing.
@@bobami5331 I have mine setup on the same 2 pole breaker as my wall connector. A current sensor on a single leg. Then 2 voltage sensor wires. One going to each leg. The readings match what the Tesla app shows, so seems like it's working fine.
Yamaha Rider If your load is 110V, then yes. One lead to Hot and the other to Neutral. For 220V load, one lead to Hot A and the other lead to Hot B. My Tesla charger is 220V, so Neutral line is irrelevant in this case.
Yes. The panel has 2 hot wires A and B and a neutral wire. The Tesla charger is using both A and B to get 240V. So the line 3 and 4 connect to both hot wires A and B.
I don’t see any problems. Well. I haven’t calibrated the meter, but I don’t think it will change the impedance that much. The most important thing is that the phase of the current sensor has to be the same as the voltage sensor.
The panel has 2 hot wires A and B and a neutral wire. The Tesla charger is using both A and B to get 240V. So the line 3 and 4 connect to both hot wires A and B.
If you pass both legs of the split phase 240V circuit (North American residential panel) through the current sensor, the phase difference of 0/180 degrees will effectively read zero. Kirchoff’s Law applies in this case - total current in a series circuit is able to be measured in one wire. It’s considered a series circuit because the panel is 120V + 120V with 180 degree phase difference and with no Neutral used for the Tesla charger.
@@envisionelectronics OK I am trying to do a similar setup to measure total load being consumed in real time when hooking my generator up to my house. So the way 220v in North America works - Is the energy through one line SHOULD be the same as the energy in the other? What if my generator load is not balanced on my panel? I am back feeding a 17,500 watt generator through a 240V 50A breaker. I want to put the Current Transformer (sensors) on the lines in my panel that run to to my generator. Obviously I will hook up the two power terminals to each hot leg (however, I will hook mine up to that same 50A breaker, unlike shown in this video / but it really doesn't matter) which will show 240V. Next, if I place the Current Transformer on only ONE of t he hot legs - yes - that will measure any 240V load on my generator - such has hot water heater, well pump, A/C, etc. However - what about 110v apparatuses plugged into my home? Such as lights, coffee maker, refrigerators? Wont those loads be running through ONE of the hot legs and completing the circuit via the Neutral wire? So lets say that I place the Current transformer on one of the hot wires coming from my generator. And lets say - for testing purposes - I purposely plug in heavy 110v appliances (hair dryer, refrigerator, etc) into circuits that are all coming off of the opposite SIDE of the electric panel. In other words, the side of the panel that does NOT have the Current Transformer hooked to the back-fed wire. I feel as if electricity being consumed by these 110v appliances will NOT register on the meter. However, WHAT IF I connected two current transformers to this meter? OR - as I read on another website, flip the hot wires around in the Current Transformer and run them both through the sensor, however, with one running through the opposite direction.
@@envisionelectronics OR- Would I be better off with two meters - one wired to each hot leg. With the main power wires hooked to each hot leg and neutral. Add the two together and that is my total power consumption... or is it? Perhaps this will only measure what is being consumed by 110v appliances? Would I need to hook up a THIRD Meter in the fashion shown in this video - which would then measure power consumption in 220v appliances? Interesting topic...
The 240v meter would be reading total power consumed by both 110v and 220v appliances , its current transformer placement would determine whether you are reading from the generator or city power. However that would not be able to differentiate between the 110 usage and 240v usage. In order to check whole house consumption youd need the current transformers on each hot leg of the feed directly at the generator . And yes if you get 2 meters and they are 110v, adding the two will give you total consumption.. but that said the meter/s will only give you readouts during generator power.. to read ciy power you would put the current trans. On the 2 cables feeding the box.. 240v breakers hit both sides of the panel, or both legs.. so if your 50a breaker is getting 240v than itd measure the entire panel.. your thinking into it too much.. like in my condition i only have a generator that outputs 120v@30a but is all i need. However i am having to rewire my panel and move breakers around while maintaining equal load on each leg but having to so the few circuits i want to be able to backfeed will be powered off of the 30a 120v outlet im wiring in.. using a lockout plate of course.. dont be stupid and have both a suicide cord and no lockout chancing the mains ... the day you kill a linesman or have your house burn down because you forgot to shut the main breaker when you hooked your backup power in is gonna be a bad day.. but be safe, wear shoes and lick your finger before you touch a hot wire..
I'm trying to do same thing.... My main question is however... shouldn't BOTH wires be placed into the Current Transformer? That way energy going through EACH line is measured??
