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6.8.2 Connection of the ESI-S in 4-wire mode
Use the 4-wire connecting mode for installations where there is a need for neutral
current filtering and/or line to neutral balancing.
In order to connect the ESI-S in 4-wire mode, follow the guidelines of
the exception that:
4. Make also a hole for the neutral cable in the protective cover noting the larger section
required for the neutral.
6. Connect the three power cables and the neutral cable. Whereas the three power cables
can be connected as describes in item 6 of
connected to the neutral connection point (Cf.
Figure 36: Connection of the neutral cable when using the ESI-S in 4-wire mode
The cable lugs for the neutral cables should comply with:
-
Maximum lug width: in accordance with terminal width
-
Minimum lug eye diameter: M8
Appropriate torque must be applied to ensure that cables are properly fixed.
Other points in the connection procedure are as per previous Section.
7. Connect the 2 DC cables to the + and – connectors.
Figure 37: Connecting the DC power cables to the inverter DC terminals
52 Electrical design and installation ç Manual Energy Storage Inverter ESI-S
+
Section
6.8.1, the neutral cable has to be
Figure
36).
Section 6.8.1
with
-
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