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Sunny Island
Battery
K7
fan
Battery
K8
circulation
AC-
F2
Outlet
Sunny Island
Fig. 3.16: Connection of a battery room fan and electrolyte pump
3.4.10 Connection of a Dump Load
If there is a surplus of energy in the island grid which is not utilized, but cannot be
stored either because the batteries are fully charged, it makes sense to connect an
additional consumer (dump load). It is connected to one of the relays not yet used
otherwise (K1 to K8) as shown in Fig. 3.17.
The switched current of the relays K1 to K8 is a maximum of 5 A at
230 V AC. A detailed limit curve is shown in chapter 18.
BWRI33-12:EE
SI-
13
BPRE
14
SI-
13
BPRE
14
N
L
2 A
external Distribution
- 40 -
Installation & Operating Instructions
Electrolyte
M
M
Pump
L
N
Battery Room
Fan
SMA Regelsysteme GmbH
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