48 Operation principle and hardware description
Construction and features
C129 UL model The inverter is UL listed.
C134 CSA model The inverter is CSA listed. CSA model includes a warning sticker of “Inverter
must be used with an
external isolation transformer.”, French manuals and C129 option.
C184 High-altitude model
>2000 m (ASL)
The maximum operating altitude is increased from 2000 m to 4000 m above
sea level. Some components in the inverter are changed. This option does not
cause voltage derating.
G433 Increased FRT
capability (only with
+G415)
This is available only with internal auxiliary power (+G415). This option
increases the inverter tolerance for extremely long low voltages, for example,
over 2 s of less than 60% nominal voltage. Some grid codes require this, for
example, California Rule 21. The other way to fulfill these grid codes is to use
the standard external auxiliary power with an UPS supplying the power.
C203 Low-temperature
variant (minimum
operation tempera-
ture to -40 °C)
The minimum operation temperature is lowered from -20 °C to -40 °C. Addi-
tional heaters are installed in the inverter.
C234 C5 enclosure mate-
rials according to
ISO 9223 (seaside
installations)
The inverter enclosure materials fulfill the C5 requirements of the ISO 9223
standard. This means in practice that the inverter can be installed on coastal
(seaside) areas. The local conditions must be analyzed to define the require-
ments for the inverter.
H357 Cable lead-
throughs
IP56/66 cable lead-throughs for the AC and DC main cabling.
Safety options
Q983 Smoke alarm
device inside the
inverter
The inverter control section is equipped with a smoke detector. Used as an
additional safety feature. It generates a fault if there is smoke inside the control
section.
Specialities
P902 Customized The inverter or its documentation delivery is customized. When selected, the
nature of the customization must be agreed with FIMER.
E203 Electromagnetic
Compatibility
(EMC) according to
generic IEC and
FCC emission
standards
The standard configuration is in compliance with IEC/EN 61000-6-2 and
CISPR11/EN 55011 standards including PV specific emission requirements.
With +E203 the inverter complies with FCC CRF 47 Part 15 Class A (radiated
emission only) and IEC/EN 61000-6-4.
P956 40 °C ratings
(maximum active
current limited
always to 1866 A)
The inverter current is limited to 1866 A. The type label indicates the power
levels achieved with this current. This is a variant used in some markets.
Factory testing
P945 Full-power burn-in
factory tests
The full-power heat run tests are done.
The test specification includes over 90% nominal power for 8 hours of
operation of the inverter. The test specification can be modified according to
the requirements.
P954 Grid protection
factory tests
The over voltage (OV), under voltage (UV), over frequency (OF) and under
frequency (UF) tests are done.
The voltage and frequency are controlled with the grid simulator and a power
analyzer is used to measure the inverter voltage and current. The trigger signal
of the voltage/frequency change from the grid simulator is measured to
calculate the trip time.
P957 Extended grid
protection factory
tests
OV, UV, OF, UF, voltage and frequency regulation, grid shutdown (loss of
mains/”anti-islanding”) and grid reconnection tests are done.
The purpose of these tests is to measure how the inverter reacts and
compensates for changes in the grid. A grid simulator is used to control the grid
voltage and frequency, and a power analyzer measures the inverter power,
power factor, currents and voltages.
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