that it does not go to waste. The feed-in limitation is only active if the power of
feeding in is higher than the set power reduction.
"Off"
The inverter converts the entire available PV power and feeds it into the public
grid.
"Limit for entire system"
The entire photovoltaic system is limited in accordance with a set power limit.
The value of the permissible total feed-in power must be set.
"Limit per phase"
Each individual phase is measured. If the permissible feed-in limit is exceeded on
one phase, the total power of the inverter is reduced until the value on the af-
fected phase is permissible again (see example below). This setting is only neces-
sary if required by national standards and regulations. The value of the permiss-
ible power of feeding in per phase must be set.
Example: "Limit per phase" (setting value: 2000 W)
Phase 1 Phase 2 Phase 3 Total
Max. possible production [W] 2000 2000 2000 6000
Set value
"Limit per phase" [W]
1000 3000
Load demand in the household
network [W]
2000 3000 5000 10000
Load coverage in the household
network via PV system [W]
1000 3000
Purchase from the public grid
[W]
1000 2000 4000 7000
"Total DC system power"
Input field for the total DC system power in Wp.
This value is used if the "Maximum permitted feed-in power of the entire system"
is specified in %.
"Maximum permitted feed-in power of the entire system"
Input field for the "Maximum permitted feed-in power of the entire system" in W
or % (setting range: -10 to 100%).
If there is no meter in the system or if a meter has failed, the inverter limits the
feed-in power to the set value.
Example: Feed-in limitation
(without consideration of the efficiency)
PV system to Fronius inverter 5000 W
Loads in the house 1000 W
Maximum permitted feed-in power of the entire system 60% = 3000 W
Case 1: The battery can be charged
Power at grid feed-in point 0 W
Power at inverter output 1000 W
Power into the battery 3000 W
124
To Next Page
Loading...
