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The inverter may only be operated with a permanent
connection to the public power grid. The inverter is not
intended for mobile use. Any other or additional use is
not considered the intended use. The
manufacturer/supplier is not liable for damage caused by
such unintended use. Damage caused by such
unintended use is at the sole risk of the operator
Capacitive Discharge Currents
PV modules with large capacities relative to earth, such
as thin-film PV modules with cells on a metallic substrate,
may only be used if their coupling capacity does not
exceed 470nF. During feed-in operation, a leakage
current flows from the cells to earth, the size of which
depends on the manner in which the PV modules are
installed (e.g. foil on metal roof) and on the weather
(rain, snow). This "normal" leakage current may not
exceed 50mA due to the fact that the inverter would
otherwise automatically disconnect from the electricity
grid as a protective measure.
NOTICE
NOTICE
Certified countries
With the appropriate settings, the unit will comply with the requirements
specified in the following standards and directives
UL 1741
IEEE 1547
CSA C22.2 No.107.1-1
FCC Part15
Growatt can preset special grid parameters for other countries installation
locations according to customer requests after evaluation by Growatt. You can
make later modifications yourself by changing software parameters with
respective communication products (e.g. shinebus or shineNet ect). To change
the grid-relevant parameters, you need a personal access code, if you need it
,please contact with Growatt
DC and AC Switch
Separate the Growatt -US securely from the grid and the PV generators using DC
and AC Switch. DC and AC Switch shall be able to disconnect all unground
conductors after installation.
Grounding the PV modules
The Growatt-US is a transformerless inverter. That is why it has no galvanic
separation. Do not ground the DC circuits of the PV modules connected to the
Growatt -US. Only ground the mounting frame of the PV modules.
If you connect grounded PV modules to the Growatt -US, the error message "PV
ISO Low".
Approprite Usage
The Growatt Inverter converts DC Current from PV generator into AC current.
The inverter is suitable for mounting indoors and outdoors.
You can use the AC current gernerated as follows:
House grid:
Public grid:
Energy flows into the house grid. The consumers connected,
for example, household devices or lighting, consume the
energy. The energy left over is fed into the public grid. When
the Growatt is not gernerating any energy, e.g., at night, the
consumers which are connected are supplied by the public
grid.The Growatt does not have its own energy meter. When
energy is fed into the public grid, the energy meter spins
backwards.
Energy is fed directly into the public grid. The Growatt is
connected to a separate energy meter. The energy produced is
compensated at a rate depending on the electric power
company.
