P V s y s t e m d e s c r i p t i o n
Installation Instructions blueplanet XP10U H4 / H6 and XP10U H4 / H6 PSD
Page 9
3.2.1.1
A summary of the components
PV array
PV arrays consist of PV modules connected in series and parallel. Each series-connected set is called a string. The electri-
cal properties of the PV array are determined by how many PV modules are in a string, and how many of the strings are
connected in parallel.
DC circuit connection
The PV array comprises individual PV circuits, with each circuit containing one positive and one negative contributor. The
individual PV circuits are connected in parallel at a DC circuit termination point. The DC circuits can be terminated either
outside the inverter, or inside the inverter as shown in Figure 1.
Over-current protection devices
Feed-in meter
The feed-in meter is specifi ed and installed by the utility operator. Some utility operators also allow the installation of
your own calibrated meters.
Utility Electric Disconnect Switch
Your utility operator or authority having jurisdiction (AHJ), may require an external visibile blade disconnect, which is not
required by the NFPA 70.
3.2.2
Design of the inverter
1
2
3
4
5
Figure 2: Inverter without integrated PV System
Disconnect
Figure 3: Inverter with integrated PV System
Disconnect
Key
1
Operator panel
5
Mounting plate
2
Cover for the XP10U AC and DC circuit termination
6
PV system disconnect (PSD)
3
Gland plate
7
DC disconnect switch
4
USB interface
8
Lock - PSD cover
9
AC disconnect switch
Note:
Items
1
-
4
are
the
same
for
Figure
2
and
Figure
3.
6
8
5
7
9
