SMA SUNNY BOY 3000-US, Руководство пользователя

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SMA America, LLC 2 Safety
User Manual SB30-40-BA-eng-BUS121010 11
2 Safety
2.1 Intended Use
The Sunny Boy is a PV inverter which converts the direct current of the PV array to alternating current
and feeds it into the power distribution grid. The Sunny Boy is suitable for use with fuel cells, small
wind turbine systems and other DC power sources.
Figure 1: Principle of a PV plant with Sunny Boy
The Sunny Boy takes current from a DC source and converts it to alternating current for the power
distribution grid. This current is then supplied to the local loads (C). Surplus energy is fed into the
power distribution grid (E). The amount of current needed from the power distribution grid is reduced
due to the current supplied to the load from the PV plant. An energy surplus may even result in the
energy meter (D) of your plant running backward. This power may also be recorded as power credits
by the local utility company depending on the interconnection agreement.
The Sunny Boy is suitable for indoor and outdoor use.
The Sunny Boy may only be operated with PV arrays of protection class II. The PV modules used must
be suitable for use with the Sunny Boy and must be approved by the module manufacturer. Do not
connect any energy sources other than PV modules to the Sunny Boy.
For safety reasons, it is forbidden to modify the product or install components that are not explicitly
recommended or distributed by SMA.
Only use the Sunny Boy in accordance with the information provided in the enclosed documentation.
Any other use can result in personal injury or property damage.
The enclosed documentation is an integral part of this product.
• Read and adhere to the documentation.
• Keep the documentation in a convenient place for future reference.
Position Description
A PV array
B Sunny Boy with DC Disconnect
C Loads
D Energy meter
E Power distribution grid