Salicru EQUINOX EQX2 10002-SX, Руководство пользователя, Страница: 53 / 80

53
EN
Attention
Do not use terminals of different manufacturers or of
different types, other than those included in the
accessory pack. SALICRU shall not be held liable for any
form of damage caused by the use of unauthorised terminals.
Attention
Moisture and dust can damage the inverter; check that
the cable gland is tight enough during installation.
The warranty will be void if the inverter is damaged as
a result of an improperly installed cable gland.
6.3.1. External earthing connection.
Danger
Do not connect the neutral N wire as a protective
earthing wire to the inverter housing. This may cause
electric shock.
Attention
An optimal earthing connection can withstand resist surge
discharges and improve EMI performance. Inverters must
be properly earthed.
For systems with a single inverter, the PE wire must be
earthed.
For a multi-inverter system, all PE cables from the
inverters must be connected to the same copper earthing
bar to ensure equipotential bonding.
Steps for connecting the terminal to earth:
1. The external earthing connection terminal is located on the
lower right side of the inverter.
2. Fasten the earthing connection terminal to the PE cable with
a suitable tool and lock the earthing connection terminal to
the earthing connection hole on the bottom right side of the
inverter as shown in Fig. 15.
3. The cross-sectional area of the external earthing wire is 4 mm
2
.
Fig. 15. Earthing terminal connection.
6.3.2. Photovoltaic panel connection.
1.
The following must be taken into account when making the
electrical connections to the inverter:
a. Disconnect the AC switch on the grid side.
b.
The inverter's DC switch must be set to "OFF".
c. To ensure that the best practices are followed, check that
the photovoltaic panels connected in each string are of the
same model and specifications.
d.
Check that the maximum output voltage of each photovol-
taic string does not exceed the maximum voltage speci-
fied in the table of technical characteristics in the section
"10. Technical features.".
e. Insert the relevant DC circuit breakers, according to the
following Tab. 7:
S/SX Models Isolating
switch
Fuses
Overvoltage
circuit breaker
If no light-
ning rod is
installed
If lightning
rods are
installed
or there
is a high
probability
of lightning
EQX2 2001-S
Integrated
into the
equipment
Fuses
1000Vdc
15A
40kA
600Vdc
type II
5kA 1000Vdc
type I+II
EQX2 3001-S
Fuses
1000Vdc
15A, 1
por string
EQX2 3002-S
EQX2 3002-SX
EQX2 4002-S
EQX2 4002-SX
EQX2 5002-S
EQX2 5002-SX
EQX2 6002-S
EQX2 6002-SX
EQX2 8002-SX
EQX2 10002-SX
Tab. 7. DC circuit breakers.
2. DC connector assembly procedure.
a. Select the suitable photovoltaic cable:
Type of cable Cross-section area
General
photovoltaic
cable
Range (mm
2
) Recommended value (mm
2
)
2.5 - 4.0 4.0
Tab. 8. Selecting the photovoltaic cable.
b. Strip 7 mm of the insulation sleeve of the DC cable,
as shown in Fig. 16:
7 mm
Cable cross-section 2.5-4 mm
2
Fig. 16. Wire end stripping.
c. Remove the connector from the accessory bag, as shown
in Fig. 17:
Fig. 17. Disassembling the connector.
EQX2 SOLAR INVERTERS CONNECTED TO THE GRID USER MANUAL