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120 The ESI-Manager user interface
Manual Energy Storage Inverter ESI-S
For detecting the CT-settings automatically, go to
[/Welcome/Settings/Commissioning/Auto CT detection]
WARNING: When launching the automatic CT detection procedure, the inverter will
connect to the network and to the battery automatically. This may take several
minutes in the case of large multi-unit inverters. During this operation (high)
operating voltages will be present in the inverter unit. For personal safety reasons,
close the inverter cover before launching the CT detection procedure. Also ensure that
the inverter CT terminals (X21) are not shorted.
When engaging the automatic CT detection procedure the inverter will execute the
following steps:
−
Deselect harmonics and reactive power/balancing settings previously entered by
the customer
−
Display a warning message to wait for the identification procedure to end
−
Check the voltage level of the DC capacitors, close the main contactor and start
the IGBTs
−
Close the DC contactor
−
Inject a small current into the supply
−
Record the current measured by the CTs and calculate the inverter CT ratios and
positions