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String Testing
RPT-2026-004 - performed 9 Jun 2026 by Shoaib Akhtar
Health score
65
Measurements taken
6
2 outside reference
Findings
1
Customer visibility
Shared
Measurements
Each reading against the reference it is judged by.
| Measurement | Reading | Reference | Result |
|---|---|---|---|
| Open circuit voltage (string A) | 678 V | Within 5% of design | Pass |
| Short circuit current (string A) | 9.5 A | Within 8% of nameplate | Pass |
| Earth electrode resistance | 8.2 ohm | Below 5 ohm | Pass |
| Insulation resistance (DC+ to earth) | 14 Mohm | Above 1 Mohm | Pass |
| Max module temperature | 75 C | Below 25 C above ambient | Outside reference |
| Performance ratio on test day | 83% | Baseline 83% | Outside reference |
Context
- Customer
- Metro Warehousing
- Capacity
- 250.0 kW
- Work order
- JOB-2026-0076
- Technician
- Shoaib Akhtar
Recommendation
Schedule corrective repair within 14 days. Losses at the current rate exceed the cost of the fix.
Score 65 / 100Findings
Defects recorded during this inspection.
String mismatch on MPPT 2
MajorResolvedString currents differ by 18 percent, pointing to partial shading or module degradation.