performance, maintenance, troubleshooting - geiger unlimited · final weeks of semester. look at...
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![Page 1: Performance, Maintenance, Troubleshooting - Geiger Unlimited · Final weeks of semester. Look at current semester calendar for correct dates! Lesson Plan ... by measuring the battery’s](https://reader033.vdocument.in/reader033/viewer/2022060522/605113d64099ac00ee15399e/html5/thumbnails/1.jpg)
ESS 034Advanced Photovoltaic Systems
Performance, Maintenance, Troubleshooting
ESS 032 Intermediate Photovoltaic Systems
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Lesson Plan
Final weeks of semester.
Look at current semester calendar for correct dates!
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Lesson Plan
• Mechanical Design – Any Questions?
• NABCEP Learning Objectives: Performance, Maintenance, Troubleshooting
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ESS 032Photovoltaics Design/Installation
NABCEP Learning ObjectivesNABCEP Learning Objectives
![Page 5: Performance, Maintenance, Troubleshooting - Geiger Unlimited · Final weeks of semester. Look at current semester calendar for correct dates! Lesson Plan ... by measuring the battery’s](https://reader033.vdocument.in/reader033/viewer/2022060522/605113d64099ac00ee15399e/html5/thumbnails/5.jpg)
ESS 032Photovoltaics Design/Installation
NABCEP Learning ObjectivesNABCEP Learning Objectives
![Page 6: Performance, Maintenance, Troubleshooting - Geiger Unlimited · Final weeks of semester. Look at current semester calendar for correct dates! Lesson Plan ... by measuring the battery’s](https://reader033.vdocument.in/reader033/viewer/2022060522/605113d64099ac00ee15399e/html5/thumbnails/6.jpg)
• A commissioning checklist should be reviewed before the initial startup of a PV system.
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• A general start-up procedure begins at the array and ends at the loads.
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• A detailed walkthrough allows the installer to explain the basic operation of the PV system and the maintenance requirements to the owner.
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• Module inspections involve checking for damage from physical impacts, delamination, burned internal connections, and other problems.
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• Corroded grounding connections usually result from the contact of incompatible materials.
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• Periodic shading control involves trimming vegetation and cleaning a soiled array.
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• Damp leaf debris trapped under arrays can cause mold and mildew problems.
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• Cracked or deteriorated weather sealing around attachment- point penetrations can quickly develop water leaks.
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• Battery terminals are particularly susceptible to corrosion and may require frequent cleaning.
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• Battery maintenance includes checking for an adequate level of electrolyte.
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• Battery watering replaces water lost from gassing during charging.
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• Battery state of charge can be related to both specific gravity and voltage.
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• Either one of two types of hydrometers can be used to measure the specific gravity of battery electrolyte.
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• A battery tester indicates a battery’s overall health by measuring the battery’s voltage under a high- current load.
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• A maintenance plan includes all the necessary maintenance tasks and their respective schedules.
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• The three most important points for measuring voltage and current information are the array output circuit, inverter output circuit, and battery-bank output circuit (if applicable).
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• Data-acquisition systems gather, record, and process information from many sources that can be used to observe trends or problems in PV system operation.
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• The system level includes all the components of a PV system. If the system is interactive, the PV system overlaps with the utility system at the power- distribution equipment.
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• PV subsystems are divided by the components involved in energy production, storage, processing or conditioning, distribution, and consumption.
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• Some equipment manuals include troubleshooting flow charts, which narrow the possible causes of a problem by following a set of instructions.
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ESS 32 Project
Reminder to complete your student project –
Due next week!