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Multiple CT monitor/controler


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I have done a 3 phase "meter"/monitor for my system.  It has 6 Ct's (current transformers)  3 is for monitoring power from inverters and 3 is monitoring house usage.
It has 4 DC in puts with 2 DC current measurement ports and 2 DC voltage.

One will get:

  1. R,Y,B Voltage  instant & RMS
  2. R,Y,B  Current instant & RMS
  3. R,Y,B  Kw instant & accumalative
  4. R,Y,B  Kw usage instant & accumulative
  5. DC1    Voltage  instant & RMS
  6. DC1    Current  instant & RMS
  7. DC2    Voltage  instant & RMS
  8. DC2    Current instant & RMS
  9. Your PFactors for AC...
  10. Kwhr totals ...
  11. Wind generator loop (RPM monitor)  A control loop managing the wind generator.

Currently I am testing the software before taking it for calibration and versioning.

The specs are simple and I do 1000 readings per second. It should be OK on accuracy

On the monitoring side it will be fed into a on line database  with graphs etc.
Java front end that allows for data mining on the Graphs.
The data base will also allow imports from a local authority system

It will be calculating all stuff accurately and the meter side will be calibrated at a lab.

 

It will also calculate COCT SAP information as they have many errors and don't mind stealing from us.

The meter is a 32bit CPU with an on board  32 bit calculator.

Feel free to create a wish list lets see what we can stack on the unit.

The idea is to achieve the management data below so a person can check his electricity on line ...

 

image.thumb.png.b29536ee8b283df04d60756ec5e7575e.png

Sept2019-Dec2020.xls_1_4.pdf

Edited by Erastus
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This is typical monthly data that will be available.

Jan R Flux Home Use Import Kwhr Export Kwhr R Import R Export Nett R X.xx R Total Follow The Sun
1 76.400 21.239 13.129 -55.161 R 24.15 R-40.39 R-16.25 R-16.25 42.032
2 77.590 19.345 11.950 -58.245 R 21.98 R-42.65 R-20.67 R-36.92 46.295
3 70.700 23.383 14.248 -47.317 R 26.21 R-34.65 R-8.44 R-45.36 33.069
4 67.600 21.010 8.620 -46.590 R 15.85 R-34.12 R-18.26 R-63.63 37.970
5 69.500 22.337 11.242 -47.163 R 20.68 R-34.54 R-13.86 R-77.49 35.921
6 76.400 21.706 12.629 -54.694 R 23.23 R-40.05 R-16.82 R-94.31 42.065
7 74.500 23.396 10.620 -51.104 R 19.53 R-37.42 R-17.89 R-112.20 40.484
8 75.500 22.654 9.964 -52.846 R 18.33 R-38.70 R-20.37 R-132.57 42.882
9 71.900 18.685 9.391 -53.215 R 17.27 R-38.97 R-21.70 R-154.27 43.824
10 76.000 28.862 12.382 -47.138 R 22.77 R-34.52 R-11.74 R-166.01 34.756
11 73.800 22.301 8.782 -51.499 R 16.15 R-37.71 R-21.56 R-187.57 42.717
12 70.800 21.110 8.611 -49.690 R 15.84 R-36.39 R-20.55 R-208.12 41.079
13 69.800 18.944 10.134 -50.856 R 18.64 R-37.24 R-18.60 R-226.73 40.722
14 70.400 21.597 11.432 -48.803 R 21.03 R-35.74 R-14.71 R-241.44 37.371
15 45.000 14.698 12.732 -30.302 R 23.42 R-22.19 R 1.23 R-240.21 17.570
16 40.100 14.233 10.575 -25.867 R 19.45 R-18.94 R 0.51 R-239.70 15.292
17 75.600 19.813 9.910 -55.787 R 18.23 R-40.85 R-22.63 R-262.33 45.877
18 74.000 20.569 7.936 -53.431 R 14.60 R-39.13 R-24.53 R-286.86 45.495
19 75.000 19.883 8.705 -55.117 R 16.01 R-40.36 R-24.35 R-311.21 46.412
20 76.600 24.252 7.924 -52.348 R 14.57 R-38.33 R-23.76 R-334.97 44.424
21 48.300 16.522 12.460 -31.778 R 22.92 R-23.27 R-0.35 R-335.32 19.318
22 74.000 19.857 11.467 -54.143 R 21.09 R-39.65 R-18.56 R-353.88 42.676
23 55.000 21.335 11.582 -33.665 R 21.30 R-24.65 R-3.35 R-357.23 22.083
24 75.400 20.677 10.327 -54.723 R 18.99 R-40.07 R-21.08 R-378.31 44.396
25 72.000 20.391 9.514 -51.609 R 17.50 R-37.79 R-20.29 R-398.60 42.095
26 74.700 21.487 7.841 -53.213 R 14.42 R-38.97 R-24.55 R-423.15 45.372
27 74.500 19.372 8.811 -55.128 R 16.21 R-40.37 R-24.16 R-447.31 46.317
28 75.200 23.402 9.239 -51.798 R 16.99 R-37.93 R-20.94 R-468.25 42.559
29 69.800 23.468 14.377 -46.332 R 26.44 R-33.93 R-7.49 R-475.74 31.955
30 62.300 19.677 13.529 -42.623 R 24.88 R-31.21 R-6.33 R-482.07 29.094
31 46.500 19.618 11.921 -26.882 R 21.93 R-19.69 R 2.24 R-479.83 14.961
  2,134.890 496.000 331.984 -1,489.067 R 610.62 R-1,090.44 R-479.83   1,157.083
  68.867     -1,157.083   R-35.18 R-847.33    
  2,134.890     448.536     R 2,128.22    
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
Edited by Erastus
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