22/78 SUREWAVE SFC USER MANUAL
5.4.1 PE120 enclosures
Each PE120 can house up to six PEBBs and the enclosures are designated PE120-U1, PE120-U2
and PE120-3 (model dependent). Below the PEBBs in each cabinet, there is a control tray carry-
ing the enclosure controller and associated circuits.
The PE120-U1 (main) is the enclosure that houses the Graphical Display Module (GDM) and the
Main Controller (MC) of the SFC. The other two enclosures (PE120-U2 & PE120-U3) have HUB con-
trollers to transfer the information between the main controller and their PEBBs.
The auxiliary supply in the control tray at the bottom of each PE120 enclosure may be externally
feed from an independent 3-phase AC source. Generally, the auxiliary supply is feed from the in-
put AC power terminals.
Figure 5-6: PE120 enclosure
5.4.1.1
SureWave SFC power electronic building blocks
The SureWave SFC can contain up to eighteen PEBBs. The Power Electronic Building Blocks are
high efficiency three-level bi-directional power electronics IGBT-based converters.
Each PEBB is rated at 250 kVA and includes a sine filter. The PEBBs are plug-in modules with au-
tomatic smart firmware management and controlled via 2 x fiber optic cables (Tx, Rx) and auxil-
iary power provided by a 24 Vdc connection.
The power connections are at the back of the modules and are connected to busbars at the rear
of the PE120 enclosures.
