PANEL HANDBOOK aH72 SK
V 6.0
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5
PHOTOVOLTAIC SYSTEM
The photovoltaic subsystem works in the same way as a crystalline silicon photovoltaic panel of the
same electrical power. Therefore, the instructions and applications are the common ones in
photovoltaics.
Solar photovoltaic systems consist of:
Photovoltaic solar modules
String connectors
Direct current (DC) and alternating current (AC) protections
Direct current (DC) to alternating current (AC) inverters
Each installation has a specific number and configuration of solar panels, inverters and protections for
its particular application. The designer of the solar photovoltaic system must configure it to meet the
requirements and working ranges of the inverter.
5.1
Recommendations, precautions and characteristics
It is necessary to hire an installer with the capacity to issue the corresponding installation bulletins and
to put it into service properly, in compliance with the specific regulations of each country.
In the northern hemisphere the optimum orientation of the panels is south, while in the southern
hemisphere the optimum orientation of the panels is north. Panels that are 30 degrees from their
optimum orientation will lose approximately 10 to 15 percent of their power output. If the panel is 60
degrees from its optimal orientation, the power loss will be 20 to 30 percent. When choosing a location,
avoid trees, buildings, or obstacles that may cast shadows on the array.
Once the system is put into service (correctly adjusted and the installation checked) the electrical
switches will be closed and the system will begin to allow the sun's energy to produce electrical current.
The system will automatically direct the energy produced to the distribution system.
It is recommended that monitoring systems be used so that operators can be aware of possible system
failures. When alarm situations arise, trained personnel should be hired to perform troubleshooting
and system repairs.
