Growatt WIT29.9-50K-XHU handleiding
Handleiding
Je bekijkt pagina 15 van 130
3 . 4 Operating Principle of WIT 29.9-50K-XHU
7> When the GEN port is connected to loads and set to “Smart Load” mode,
during on-grid operation, it will supply grid power to the loads connected via
the GEN port; during off-grid operation, the power supply to smart loads will
be cut off.
5> Convert the DC power from PV strings and the battery power into AC power
through the inverter circuit to power critical loads.
3> Convert battery power to AC power supplies for the loads and feeding to the
grid;
1> The hybrid inverter receives DC inputs from PV strings which go through the
MPPT routes. The DC power is then converted into AC power through the
inverter circuit to power the loads and feed power into the grid;
2> The PV strings can supply power to charge the battery through the MPPT routes;
4> Charge the battery from the grid through a rectifier circuit;
6> When the GEN port is connected to the generator and set to the GEN mode, the
generator can supply power to the loads or charge the battery.
8> When the GEN port is connected to the on-grid inverter and set to “AC Couple”
mode, during on-grid operation, the on-grid inverter will be connected to the
grid and output power; during off-grid operation, the on-grid inverter will
remain connected and generating power together with the WIT inverter.
Fig 3.8 WIT 29.9-50K-XHU Grid-connected conceptual diagram
NOTE: WIT 29.9-50K-XHU models have 4 MPPT routes.
3.5 StoringtheWITInverter
1> Put the WIT Inverter in the original package and place it in a dry and well-
ventilated place.
2> Keep the storage temperature from –30°C to +70°C and the humidity from
0%–95% RH.
3> A maximum of three WIT Inverters can be stacked. Do not stack the inverters
without package.
4> If the WIT Inverter has been long-term stored, inspections and tests should be
conducted by qualified personnel before installation.
Wrong time and date may occur if the WIT Inverter has been stored
for over one month. Fix the time and date before connecting the
inverter to the grid. For details, see 7.1 Commissioning the WIT
Inverter.
3.6 Supported Grid Types
Fig 3.9 380V/400V system (type Y/△)
3.7 AFCI Function
An AFCI, or Arc-Fault Circuit Interrupter, is a solution designed to detect and
mitigate the risk of electrical arcing in a photovoltaic (PV) system, supported by
intelligent arc detection algorithm. Arcing can occur when there is a high voltage
breakdown in the electrical insulation or when conductive materials come into
contact with each other. This can pose a fire hazard and damage the system
components. The AFCI continuously monitors the system for potential arc faults
and, if detected, interrupts the circuit to prevent a fire or other damage. AFCIs are
required by the National Electrical Code (NEC) in certain parts of a PV system, such
as the DC side of the inverter, to improve safety and reduce the risk of fires.
Grid connection modes for WIT 29.9-50K-XHU Hybrid Inverters are shown in Fig 3.9.
3.7.1 AFCI function Description
N
220V/230V
3P4W
3P3W
380V/400V
380/400V
380/400V
1
4
EMI
Filter
1
MPPT1
MPPT
4
DC Link
DC/AC
Unit
DC
DC Relay
EMI
Filter
R
S
T
N
R S T N
LOAD
GRID
SCR
R S T N
GEN/AC couple/smart load
3
EMI
Filter
DC/DC
Unit
1211
Bekijk gratis de handleiding van Growatt WIT29.9-50K-XHU, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Growatt |
| Model | WIT29.9-50K-XHU |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 16744 MB |
