Abrelex EnerSolis ES 10000 User Manual - page 10
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4.4.3
4.4.3
4.4.3
4.4.3
Connecting the PV array (DC)
4.4.3.1
4.4.3.1
4.4.3.1
4.4.3.1
PV array requirements
The ES 6000(ES 8000/ES 10000/ES 12000) PV inverter is designed to be
connected to an array of up to two PV strings. The two PV strings can contain
different numbers of PV modules.
4.4.3.2
4.4.3.2
4.4.3.2
4.4.3.2
Wiring to the PV array
The PV inverter is equipped with PV quick connects for connecting up to two PV
strings as shown in Figure 6.
Caution:
Before connecting to PV modules, please install a separate
circuit breaker between PV inverter and PV modules.
Figure 6
19
When matching PV strings to the PV inverter, to determine the number of panels
required in each PV string (panels connected in series), you must ensure that the
following three requirements are met:
1. To avoid damage to the inverter make sure that the maximum open circuit
voltage (Voc) of each PV string is less than 1,000 VDC under any conditions.
Voltage over 1,000 VDC will damage the inverter.
2. Do not exceed the maximum array short-circuit current rating marked on the
inverter.
3. To harvest maximum energy from your array ensure that the Vmp (voltage at
maximum power) does not drop below 450 VDC or increase above 850 VDC
under most conditions.
To wire the PV array to the PV inverter follow these steps:
Step 1: Set the DC input switch to
0
(
Turn the DC input switch to off position,referring to section 4.4.2 Figure 5)
Step 2: Check that the PV generator connectors have the right polarity and do not
exceed the maximum string voltage.
Step 3: Connect the POSITIVE (+) wire from the #1 PV string to the PV inverter’s
positive (+) terminal.
Step 4: Connect the NEGATIVE (–) wire from the #1 PV string to the PV inverter’s
negative (–) terminal.
Step 5: Connect the ground wire from the #1 PV string to earth.
Step 6: If necessary repeat steps 2 through 5 for the #2 PV string. Double-check
that the wires are in the proper locations.
Suggested DC cable width
Model
Area (mm
2
)
AWG no.
ES 6000
> 4.0
< 12
ES 8000
> 4.0
< 12
ES 10000
> 4.0
< 12
ES 12000
> 4.0
< 12