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Changes for page Testing Procedures

Last modified by robert on 2024/12/09 16:08
From version 10.1
edited by Jack Dent
on 2024/12/09 10:23
Change comment: There is no comment for this version
To version 11.1
edited by Jack Dent
on 2024/12/09 10:37
Change comment: There is no comment for this version

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... ... @@ -517,7 +517,7 @@
517 517  )))
518 518  
519 519  
520 -=== Following materials are required ===
520 +=== Following materials are required ===
521 521  
522 522  * Solar panel for testing
523 523  * Digital multi-meter (DMM)
... ... @@ -527,7 +527,7 @@
527 527  * Spreadsheet with formulae
528 528  * Marker/ pen
529 529  
530 -=== Test Method ===
530 +=== Test Method ===
531 531  
532 532  1. Clearly label each solar panel to keep track of measurements.
533 533  1. Record the manufacturers power rating of the solar panel. **Perform all measurement outdoors under bright sunny conditions! **
... ... @@ -542,7 +542,7 @@
542 542  
543 543  
544 544  
545 -=== Developing a spreadsheet ===
545 +=== Developing a spreadsheet ===
546 546  
547 547  Create a spreadsheet with following cells
548 548  
... ... @@ -624,17 +624,15 @@
624 624  
625 625  Inside the “Vrl (Theoretical)” cell enter the following formula using the corresponding cells.
626 626  
627 -V_{RL}=I_{oc}\times R_L
627 +[[image:Screenshot 2024-12-09 103334.png||height="28" width="141"]]
628 628  
629 -
630 630  Inside the “Rated Power” cell enter the following formula using the corresponding cells.
631 631  
632 -P_{oc}=V_{oc}\times I_{oc}
631 +[[image:Screenshot 2024-12-09 103419.png||height="31" width="157"]]
633 633  
634 -
635 635  Inside the “Load Power” cell enter the following formula using the corresponding cells.
636 636  
637 -P_{RL}=\frac{V_{RL}}{R_L}\times V_{oc}
635 +[[image:Screenshot 2024-12-09 103432.png||height="67" width="176"]]
638 638  
639 639  
640 640  Inside the “Power Loss %” cell enter the following formula using the corresponding cells.
... ... @@ -641,10 +641,9 @@
641 641  
642 642  The calculated values that are negative represent power loss, and positive values are power gain. Performing “conditional formatting” on these cells with colour gradient (defined by colour break limits) would yield visually easy to recognise defective panels.
643 643  
642 +[[image:Screenshot 2024-12-09 103639.png||height="63" width="304"]]
644 644  
645 -Power\ Loss\ \%=\frac{P_{RL}}{P_{oc}}\times 100-100
646 646  
647 -
648 648  Perform all the calculations for each solar panel ID entered.
649 649  
650 650  Solar panels with power loss of 20% or more should be clearly marked as defective and not be used in any future deployments.
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