18_06_07_Battery Backup Distribution_10010371_ENG_V1.8 Seite -27- von -38-
10.2 Grid-mode
While grid-mode is working, building’s distribution board protection is exclusively
responsible for the people’s protection against electric shock within the consumer load
circuits.
Nominal thermal power!
(rated power)
Make sure, that your nominal thermal power never become more then the max. values –
please have a look at chapter -18- “Technical Data”
P
Nominal thermal max.
=
∑
(+P
Consumption max.
) + (-P
Feed In max.
)
During the grid mode, the electrical energy (for the load) is
passing through the Battery Backup Distribution. Surplus-Energy
produced by the PV-Panels will be feeded in optionally.
The algebraic sum of both power-values:
“Passing through power”
P
Battery
Backup
Distribution
The average expected “passing through power” defines the “thermal passing
through power” or better said nominal power. The occurring power peaks of the loads or
respectively coming from the PV-panels might get higher. The limiting value for the peak power
is defined as the max. peak current given by the required pre-fuses (Look at Chapter -18-
“Technical Data”).
Main supply
Public Grid
network
operator’s
- connection point
- counter
Building‘s
distribution board
+ protective
devices
AC-Load
circuits
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