Sinexcel PWS1-500KTL-NA, User Manual

Page: 24 / 49

16 Chapter IV Device Installation
When the cabinet is fixed to the concrete floor, make holes on the floor and fix the cabinet to the concrete floor with expansion
screws, as shown in Fig.4-5.
Electrical connection
4.6.1 Input requirement
DC voltage of the storage inverter should be within the input scope, or the storage inverter will be unable to operate. When
configuring serial quantity of batteries, the maximum charging voltage and minimum discharging voltage should be fully
considered. For details, please consult our technical personnel.
4.6.2
Output requirement
The output of the storage inverter is 3-phase. When designing energy storing system, the storage inverter has been equipped
without an isolation transformer, the voltage of its output side can directly be connected to the low-voltage power grid.
4.6.3
Wiring
The cables fall into the cable trough via the wire holes at the base. Open the front door and dismantle the internal door to
display wiring the cooper bars. Refer to Fig.4-6, Fig.4-7 and Fig. 4-8 for main view of cabinet’s front door. As for wiring
requirements, single cables or multiple cables with proper wire diameter should be selected (image update). It is suggested
that the current in 1mm 2 wire should be ≤3A.
Position Description
1 Battery
input positive pole
2 Battery
input negative pole
3 PE
4
AC output A phase
5
AC output B phase
6
AC output C phase
Fig. 4-6 PWS1-500KTL-NA with 1-Sting Configuration cabinet wiring copper bars
Position Description
1 1 Battery
input positive pole
2 1 Battery
input negative pole
3
2 Battery
input positive pole
4 2 Battery
input negative pole
5 3 Battery
input positive pole
6 3 Battery
input negative pole