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4.4 Electrical installation
4.4.1 Input and output requirements
NOTICE
Caution, risk of danger
There is a danger of electrical shock of high voltage in inverter’s
operation; only electricians of professional skills can operate.
All connections with this equipment shall be done under non-
voltage state.
The inverter may be damaged if input or output terminal is
incorrectly plugged.
Failure of acting upon this information may cause serious
personnel injury or significant property loss even to death.
1) Battery
The positive and negative highest voltage of the battery shall not exceed 1000V,
otherwise, the equipment will be in over-voltage protection state, and cannot work
normally.
Model
ATESS PCS100
Battery Voltage Limit
1000V
2) Three-phase grid
Inverter will continuously inspect whether the grid satisfy the grid connected
conditions. The following is the grid limit for satisfaction of local Grid connected
Conditions (requirements in different countries may vary, the value can be setup and
please refer to local grid connected regulations for details), and the grid is three-
phase grid. Meanwhile, it shall be permitted by local power supply department
before install Grid-connected inverted power.
Model
ATESS PCS100
Grid Voltage Limit
Grid Frequency Limit
360Vac~440Vac
45Hz-55Hz/55Hz-65Hz
Cable (Cu)
Cable Diameter Requirements (mm²)
Model
ATESS PCS100
3) Cable requirements
Aperture
DC+
Φ
10,30N*m
DC-
Grid Phase A
2
1 input cables with each at least 70 mm
Communication Wire 0.75mm², shielded Twisted pair is recommended
/
Earth Wire
More than 16 mm².Green and yellow is
recommended
4.4.2 Preparation for electrical wiring
Before wiring, the users need to open the front door of inverter, and the specific
procedures are as follows:
Procedure
1:
Cut off the circuit breaker at DC&AC sides. As shown in Figure 4-4-2-1,
move the Grid switch and the DC switch to the state of "OFF".
Figure 4-4-2-1 AC&DC Main Switch Status Schema
Grid Phase B
2
1 input cables with each at least 70 mm
2
1 input cables with each at least 70 mm
2
1 input cables with each at least 70 mm
Φ
10,30N*m
Φ
10,30N*m
Φ
10,30N*m
Φ
10,30N*m
Φ
10,30N*m
Φ
10,30N*m
Grid Phase C
N Wire
2
1 input cables with each 95 mm ,or 2
2
input cables with each at least 35 mm
2
1 input cables with each 95 mm ,or 2
2
input cables with each at least 35 mm
PV SWITCH
GRID SWITCH
