Fig. 43. Connection of different solar fields and 2 MPPTs.
Different solar field
panels from different manufacturers, of different lengths
and/or powers.
Insert the positive and negative connectors into the respec-
4.
tive DC input terminals of the inverter. If the terminals are
properly connected, they will make a clicking sound, as shown
in Fig. 44:
Fig. 44. Connecting the DC input terminals of units with 2 MPPTs.
76
Inverter
MCB
SPD
PV
PV
refers to those that are made up of
- Disconnect the AC circuit breaker from the grid side
before connecting the DC input terminals.
- The DC circuit breaker must be "OFF".
- Insulate the unused DC terminals with caps.
5.3.4. Battery system connection.
5.3.4.1. Warnings to consider during the
connection.
Disconnect the AC circuit breaker from the grid part.
1.
Disconnect the DC circuit breaker from the battery part.
2.
Disconnect the inverter DC switch ("Off" position).
3.
Ensure that the maximum input voltage of the battery is
4.
Fus.
within the inverter limit (180 ∼ 750 V).
5.3.4.2. Lithium battery connector assembly
procedures.
Select the appropriate DC cable.
1.
Type of
cable
AVG 10
Fus.
Strip 7 mm of the insulation sleeve of the DC cable, as shown
2.
in Fig. 45.
MCB
SPD
7 mm
Fig. 45. Wire end stripping.
Use a flat head screwdriver to open the retaining bracket on
3.
the connector, as shown in Fig. 46.
Fig. 46. Opening the retaining bracket.
Insert the stripped DC cable far enough into the battery
4.
connector and change the retaining bracket to make sure it is
locked tightly to the stripped cable, as shown in Fig. 47.
Conductor cross-section (mm
Outer diameter (mm
)
Conductor cross-section (mm
2
5,5 - 8,0
Cable cross-section 5.5-8.0 mm
2
)
2
)
2
4,0 - 6,0
SALICRU