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11
Check the secure mounting of the solar inverter by trying to raise it from the
bottom. The solar inverter should remain firmly attached.
Choose a strong mounting wall to prevent vibrations while inverte
is
operating.
2.4 System Diagram and Connection Label
The JSI series are a single phase solar inverters. They are responsible for
converting the direct current generated by PV panels into single-phase 230Vac
50Hz alternating current for delivery into the AC grid.
The JSI series can be used in an on-grid PV system to produce electricity.
The installation of the JSI series and their connection to the AC grid shall be
done in accordance with local regulations and may require the installation of
adequate electricity consumption measuring devices.
The JSI series only operates when it is connected to the AC grid and can not
operate as a stand-alone unit.
The simplified connection diagram of the inverter is as follows.
Fig.6 The PV system diagram
A. PV Panels: Provide DC power to inverter.
B. Sola
inverter: Converts DC (Direct Current) powe
from PV panel(s) to AC
(Alternating Current) power. Because Inverter is grid-connected it controls the
current amplitude according to the PV Panel power supply. Inverter always
tries to convert the maximum power from your PV panel(s).
C. DC Switch and AC Switch: “DC switch” is between PV Panels and sola
inverter while “AC Switch” is between AC Grid (Utility) and solar Inverter. They
are be simplified in this diagram. In fact, they may consist of electrical breaker,
fuse and connecting terminals. To comply with local safety standards and
codes, the connection system should be designed and implemented by a
qualified technician. JFY-tech also provides the solar inverter with an
integrated DC switch demonstrated in dashed border in Fig.6. –S suffix
indicates the inverter is integrated a DC switch in PV input side.
D. AC Grid (Utility): Referred to as “grid” in this manual, is the way you
electric
power company provides power to your place. Please note that Inverter can
only connect to low-voltage systems (namely, 220/230Vac, 50Hz).
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