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PowerPoint ® Presentation Photovoltaic Systems Commissioning, Maintenance, and Troubleshooting Commissioning Maintenance Monitoring Troubleshooting Arizona.

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Presentation on theme: "PowerPoint ® Presentation Photovoltaic Systems Commissioning, Maintenance, and Troubleshooting Commissioning Maintenance Monitoring Troubleshooting Arizona."— Presentation transcript:

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2 PowerPoint ® Presentation Photovoltaic Systems Commissioning, Maintenance, and Troubleshooting Commissioning Maintenance Monitoring Troubleshooting Arizona Solar Power Society Commissioning Maintenance Monitoring Troubleshooting Arizona Solar Power Society

3 Chapter 14 Commissioning, Maintenance, and Troubleshooting A commissioning checklist should be reviewed before the initial startup of any PV system.

4 Chapter 14 Commissioning, Maintenance, and Troubleshooting A general start-up procedure begins at the array and ends at the loads, though exact procedures may differ.

5 Chapter 14 Commissioning, Maintenance, and Troubleshooting A detailed walkthrough allows the installer to explain the basic operation of the PV system and the maintenance requirements to the owner.

6 Chapter 14 Commissioning, Maintenance, and Troubleshooting Visual module inspections involve checking for damage from physical impacts, delamination, burned internal connections, and other problems.

7 Chapter 14 Commissioning, Maintenance, and Troubleshooting Corroded grounding connections usually result from the contact of incompatible materials or extreme environments.

8 Chapter 14 Commissioning, Maintenance, and Troubleshooting Periodic shading control involves trimming vegetation and cleaning a soiled array.

9 Chapter 14 Commissioning, Maintenance, and Troubleshooting Damp leaf debris trapped under arrays can cause mold and mildew problems.

10 Chapter 14 Commissioning, Maintenance, and Troubleshooting Cracked or deteriorated weather sealing around attachment-point penetrations can quickly develop water leaks.

11 Chapter 14 Commissioning, Maintenance, and Troubleshooting Battery enclosures should be inspected for strength, cleanliness, and adequate ventilation.

12 Chapter 14 Commissioning, Maintenance, and Troubleshooting Battery terminals are particularly susceptible to corrosion and may require frequent cleaning.

13 Chapter 14 Commissioning, Maintenance, and Troubleshooting Battery maintenance includes checking for an adequate level of electrolyte.

14 Chapter 14 Commissioning, Maintenance, and Troubleshooting Battery watering replaces water lost from gassing during charging.

15 Chapter 14 Commissioning, Maintenance, and Troubleshooting Battery state of charge can be related to both specific gravity and voltage.

16 Chapter 14 Commissioning, Maintenance, and Troubleshooting Either one of two types of hydrometers can be used to measure the specific gravity of battery electrolyte.

17 Chapter 14 Commissioning, Maintenance, and Troubleshooting When viewing through a refractive index hydrometer, the specific gravity of the tested fluid is measured against a calibrated scale.

18 Chapter 14 Commissioning, Maintenance, and Troubleshooting An infrared (IR) thermometer can measure the temperature of electrical equipment, including PV system components.

19 Chapter 14 Commissioning, Maintenance, and Troubleshooting A maintenance plan includes all the necessary maintenance tasks and their respective schedules.

20 Chapter 14 Commissioning, Maintenance, and Troubleshooting The three most important points for measuring voltage and current information are the array output circuit, inverter output circuit, and charge controller circuit (if applicable).

21 Chapter 14 Commissioning, Maintenance, and Troubleshooting Sensors for measuring irradiance and other parameters allow technicians to correlate PV system output with weather conditions.

22 Chapter 14 Commissioning, Maintenance, and Troubleshooting Equipment status indicators may have multiple functions.

23 Chapter 14 Commissioning, Maintenance, and Troubleshooting Data-acquisition systems gather, record, and process information from many sources that can be used to observe trends or problems in PV system operation.

24 Chapter 14 Commissioning, Maintenance, and Troubleshooting The system level includes all the components of a PV system.

25 Chapter 14 Commissioning, Maintenance, and Troubleshooting PV subsystems are divided by the components involved in energy production, storage, processing or conditioning, distribution, and consumption.

26 Chapter 14 Commissioning, Maintenance, and Troubleshooting Most equipment manuals include troubleshooting flow charts or procedures, which narrow the possible causes of a problem by following a specific set of instructions.


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