19
Property boundaries and transfer point without power storage system
B
C
D
E
F
G
K
L
Z2
1~
A
N
O
H
1~/N/PE
M
400V / 230V~
~
P
kWh
Z1
kWh
S1
kWh
Fig. 9
Source: VDE AR-N 4105
A
Low voltage grid
B
Main power supply
C
Domestic distribution box
D
Property boundary
E
Grid operator
F
Customer
G
Power distribution
H
On-site consumers
K
Short circuit protection
L
Overload protection, RCD
M
Vitovalor PT2
N
GS protection
O
Inverter (DC/AC converter) S
EMAX
= 0.75 kVA
P
Fuel cell
S1 Bidirectional energy management meter (not rele-
vant for billing by the grid operator)
Z1 Balancing bidirectional meter (observe meter cir-
cuit)
Z2 Export meter (standard delivery on Vitovalor PT2)
Preparing for installation
Notes on connecting to the mains supply
(cont.)
5853335
Installation