Grid connection
Selection of the energy meter connected to the inverter and the feed-in limit to the public grid.
- Configuring the overload protection.
- With some inverter configurations, phase-aligned feed-in can also be configured.
This menu option is not available on an MDC client inverter. The settings can only be configured on the MDC host inverter.
INFO
The settings in this menu can only be configured after logging in as the installer.
INFO
You will find a list of approved energy meters and their purpose in the download area for the product on our website at https://www.kostal-solar-electric.com.
|
Parameter |
Explanation |
|---|---|
Feed-in | Switch from symmetrical to asymmetrical. Symmetrical: The inverter feeds the same amount of power into the grid on all phases. (Default) Asymmetrical: The inverter compensates for the difference between the phases so that all phases have the same values. This places a higher load on the inverter. |
Energy meter | Selection of connected energy meter. |
Sensor position | Select the position of the installed energy meter in the building services. The energy meter must be installed at the grid connection point (position 2). Position 1 (household consumption path) is not possible. Grid connection point = position 2 |
Limiting the feed-in power | Setting the maximum feed-in power. Specifications for this are usually provided by the electricity supplier (e.g. a reduction to 60 per cent). The default value is the maximum power of the inverter. Use the calculator to easily work out the reduction. |
Limiting the power drawn | Setting the maximum draw power. Here you can set a value that is lower than the maximum inverter power. This is used, for example, to charge a connected battery at a lower power than is possible. |
Enable reception of broadcast control signals | If a ripple control receiver is connected to the digital inputs of another inverter, the signals for active and reactive power control can be distributed to all inverters in the local area network (LAN) via UDP broadcast. A local energy manager can also generate signals for active and reactive power control in the local network. Enabled: The inverter is controlled by a ripple control receiver connected to another inverter. Deactivated (default): The signals are not evaluated. The inverter is not controlled by a ripple control receiver connected to another inverter. For inverters that have been configured as MDC clients or MDC hosts, this menu item is enabled by default and cannot be changed. |
Phase settings
This menu item is only displayed on an inverter that has been configured as an MDC host.
The ‘Phase Load’ section displays the current load per phase at the grid connection point, as well as the phase imbalance between the phases.
The overload protection displays the current draw or feed-in per phase. If the value exceeds the displayed limit range of the rated current (hatched area), the charging current is reduced so as not to overload the grid connection point and, consequently, the domestic fuse protection (blackout protection).
The overload protection must be configured so that the lowest possible fuse rating is set, thereby ensuring that the domestic fuse protection is safeguarded.
If an asymmetrical feed-in has been selected, this must be reselected when the operating mode is changed. By default, the setting is always symmetrical.
|
Parameter |
Explanation |
|---|---|
Rated current | Ensure that the value for the rated current of the main fuse is set correctly. If the set value is greater than the actual value of the fuse, protection against overloading of the main fuse cannot be guaranteed. |
INFO
Overload of the domestic supply connection
When installing high-power loads, please observe the local guidelines in your country regarding phase symmetry, e.g. in Germany in accordance with VDE AR-N 4100.