ABB ESI-S, Инструкции по установке, эксплуатации и обслуживанию

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54 Electrical design and installation  Manual Energy Storage Inverter ESI-S
L1
L2
Load side
Supply side
K L
k l
ESI
X21.1
X21.2
L1 L2/N
To X21.1/X21.2
K = P1, L = P2, k = S1, l = S2
Figure 38: Basic CT connection example for a single unit.
Figure 39: Location of the CT connection terminal X21 in the ESI-S
The terminal block X21 can handle control cable wiring with sections from 2.5 mm² to 10
mm².
Note: in case power quality features (harmonics filtering, load balancing and PF
correction) are not required above mentioned CT’s are not needed.
6.13 Electrical connections to the ESI-Manager user interface
The ESI-Manager is the user interface between the outside world and the controller. It is
mounted on the inverter cover panel. Depending on the user requirements, less or more
electrical connections have to be made to it.
Figure 40 shows the rear side layout of the
ESI-Manager. In order to get access to the rear side of the ESI-Manager, remove the ESI-
S top cover (Cf. guidelines in
Section 3.4 . )