Fimer PVS-60-TL Quick Installation Manual - Page 5
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7. Line cable - Protection devices
Load Protection Breaker (AC Disconnect Switch) and Line Cable Sizing
To protect the AC connection line of the inverter, we recommend installing a
device for protection against over current with the following characteristics.
lation.
Automatic
Type
magnetic protection
Rated Voltage/Current
400 V / 100 A
Magnetic protection
B/C
characteristic
Number of poles
3/4
Type of differential
A/AC
protection (if required)
Differential sensitivity (if
500mA for PVS-50-TL and 600mA for PVS-
required)
60-TL
Characteristics and Sizing of the Line Cable
The AC connection is three-phase (three-wire
connection 3W+PE or four wire connection
4W+PE, grounded only WYE system). The
cross-section of the AC phase conductor
must be appropriately sized in order to prevent
unwanted disconnection of the inverter from
the distribution network due to high impedance
of the line that connects the inverter to the
power supply point.
8. Output connection (AC)
WARNING –
To avoid risks of electrical shock, all wiring operations
B
must be carried out with the disconnect switch downstream of the
inverter (grid side) opened and applying LOTO procedure on it. Be
careful not to change round one of the phases with neutral!
ATTENTION –
Grounding connection is essential before connection
A
to the power supply network.
In compliance with standard IEC 62109 it is necessary: Install a earthing
cable in one of the protective earth terminal with a minimum section as
indicated in the table below:
Cross-sectional
area
phase conductors (S) (mm²)
S ≤ 16
16 < S ≤ 35
35 < S
ATTENTION –
The value on this table are valid only if the
A
protective earthing conductor is made of the same metal as the
phase conductors. If this is not so, the cross-sectional area of the
earthing conductor is to be determined in a manner which produces
a conductance equivalent to that which results from the application
of this table.
It is possible to install a second earthing cable (with the same section as
the first one) positioning it in the protective earth terminal not used (internal
(37) or external (16)). Installation of a second protective earth cable is also
required by regulations in force in certain countries of installation.
AC Cable Installation:
To carry out the connections, a multicore cable (44 to 52mm diameter)
must be passed through the single AC cable gland (18). Connection of AC
cable is
made to the AC output screw terminal block (38); the screw terminal block
accepts cables with a maximum-cross section of 95 mm2 (copper or
aluminum).
• Öffnen Sie die vordere Abdeckung der Anschlussbox (04).
• Lösen Sie die AC-Kabelverschraubung. (18)
• Führen Sie das Kabel mit dem geeigneten Querschnitt ein.
• Connect the earth cable to the protective earth terminal (internal) (37)
following to the sequence illustrated in the below figure and tightening it
PVS-50-TL
PVS-60-TL
circuit
breaker
with
480 V / 100 A
M63 cable gland;
Cable entry 25/44mm
Minimum
cross-sectional
of
area of the protective earthing
conductor (mm²)
S
16
S/2
to a torque of 11Nm. A ring cable lug, suitable for M6 size threaded insert,
must be installed on the cable. (FIG. 9)
• As alternative is possible to connect the earth cable to the protective earth
terminal (external) (16) positioned on the left side of the mechanics. As
per the protective earth terminal (internal) (37) following to the sequence
illustrated in the below figure and tightening it to a torque of 11Nm. A ring
cable lug, suitable for aM6 size threaded insert, must be installed on the
cable. (FIG. 10)
thermal
• Connect the Neutral (if provided), R, S, T wires to the respective terminals
of the AC output screw terminal block (38). Observe the connection
sequence of the phases R, S, T indicated on thelabels placed on the
internal AC cables. (FIG. 11)
• Give each wire a pull test to confirm the connection is secure.
• In the AC filter board (40) set the switch (S1) based on
the
configuration
- 3WIRES position. Three wires configuration (R+S+T)
- 4WIRES position. Four wires configuration (Neutral+R+S+T)
• Once connection to the AC output screw terminal block (38) has been
completed, retighten (10.0 Nm torque) the cable gland firmly and check
seal.
37
09
11
9. Input connection (DC)
FORBIDDEN –
H
kind on the inverter during operation!
Do not touch the heatsink while the inverter is operating!Some parts
may be very hot and cause burns.
WARNING –
B
the quick-fit connectors as indicated in the technical data.Polarity
inversion can cause serious damage. Check polarity before
connecting each string! When the photovoltaic panels are exposed to
sunlight they provide continuous DC voltage to the inverter. To avoid
risks of electrical shock, all wiring operations must be carried out with
the DC disconnect switch internal and external (if present, applying
LOTO procedures on it) to OFF position and with the external AC
disconnect switch to OFF position (applying LOTO procedures on it).
WARNING –
B
only, there will be live parts internal to the inverter with a consequent
risk of electrical shock. In this case these activity is ONLY allowed
with the use of appropriate PPE (overall resistant to electric arc,
dielectric helmet with visor, insulating gloves class 0, Protective
overglove in leather EN420 – EN388 , Safety shoes).
WARNING –
B
WITHOUT AN ISOLATION TRANSFORMER (transformerless). This
topology implies the use of isolated PV panels (IEC61730 Class A
Rating) and the need to keep the PV array floating with respect to
ground: no terminal of the PV array must be connected to ground. For
a different connection of PV strings, when a negative input grounding
kit is installed, the use of an isolation transformer in mandatory. Refer
to the "PVS-50/60-GROUNDING KIT" Quick Installation Guide for
further information If input strings are paralleled, they must have
the same installation conditions (number of panel sets, panel type,
orientation and tilt).
DC-side connections may vary depending on the inverter model.
• PVS-50(60)-TL Model
In these inverter models, equipped with single MPPT, the PV array is
connected to the inverter through the DC input screw terminal block (39)
of
the
output
connections
16
10
12
Do
not
place
Comply with the maximum input current relating to
In case presence of internal DC disconnect switch
Warning. The inverters referred to in this document are
(FIG.
12):
N
R
S
T
objects
of
any
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