Electricity Monitoring

[Sandpiper]

Here is a picture of my breaker box.

I'm not sure if this helps but I just did some multimeter tests.
a & b = 240 V
a & c = 0
a & d = 240
b & d = 0
b & c = 240
c & d = 240

Any help with this is appreciated.

It might be an alternate feed from a second source. Is this possible?

I dont think its a subfeed because there should be a second breaker in this case.

 

[mustangcoupe]

Here is a picture of my breaker box.

I'm not sure if this helps but I just did some multimeter tests.
a & b = 240 V
a & c = 0
a & d = 240
b & d = 0
b & c = 240
c & d = 240

Any help with this is appreciated.

It might be an alternate feed from a second source. Is this possible?

I dont think its a subfeed because there should be a second breaker in this case.

Unless it's a strange panel/breaker combo where C and D are paralled with the main feed A & B (buss bar behind the breaker) to feed a 2nd main breaker in a subpanel...

Jim have you been able to trace where that 2nd (lower) pipe goes to? You said the uper looked to be gong to your meter (which I would assume is the main feed also)



And with his measurements of a & c = 0 and b & d = 0 I would guess that these are the same phasees ex Wire B and D are one phase, and A and C are a second phase.

 

[ckindt]

Here's some pictures of my power monitoring set up. The graph is a quicky and I noticed some labeling errors as I uploaded the picture. I'm not telling what the error is though.

I also see I need to increase the scale of the top graph. It maxed out when I ran the shop vac. It shows the kW and kW Avg. The middle graph is current on A,B and total. The bottom one is kWh.

The F4-MAS-MB module polls the meter and stores the data in registers in the plc memory.