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7. Configuration
EPM Function Description
Data logger with grid point meter can realize the project field station anti-backflow function.
It is necessary to obtain in advance the ratio parameters of PT and CT at the site and the
communication protocol of the meter.
Application Scenarios
Brief description of control parameters
Allowed feed-in power: The power allowed to be fed into the local grid, which can be configured
according to the actual situation on site.
Adjustment time: When the feed-in power exceeds the set allowed feed-in power, the inverter
power needs to be adjusted to below the allowed feed-in power within the specified time.
Protection function
When it is impossible to judge the power direction or current direction of the grid point,
such as the interruption of meter communication, PT magnetic ring disconnection,
CT magnetic ring disconnection and other factors, data logger automatically sends shutdown
instructions to the inverter to ensure that the project as a whole will not produce backflow
current to the grid.
.19.
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