Sunny Island 4500
Installation & Operating Instructions
BWRI45-13-EE0304
- 57 -
SMA Regelsysteme GmbH
Sunny Island
13
14
13
14
N
L
F2
G
L
N
externe distribution
generator
Generator
start
Generator
contactor
K1
K2
generator
start
AC-
outlet
2 A
L
N
PE
L
N
2 A
L
N
Grid
L
N
utility grid
13
14
Mains
K3
13
14
L
N
Generator /
Mains
sync. input
Sync switch
SI-
BPRE
SI-
BPRE
SI-
BPRE
K5
24V=
SI-
BP24
*
+
-
Fig. 3.14:
Connection to generator and utility
*
This relay shall not overcharge the 24 V auxiliary supply output (SMA order code ”SI-BP24“)! A relay
complying with the requirements is available with the SMA order code
”SI-BPRETR“.
The switch-over times can also be eliminated as described in the preceding chapters
just by a little more expenditure (Fig. 3.15).
In this configuration the “external distribution” will remain connected to
the utility grid even when the Sunny Island is in standby mode.