Growatt 3000 User Manual

5
4
1.5.Glossary
AC
Abbreviation for "Alternating Current"
DC
Abbreviation for "Direct Current"
Energy is measured in Wh (watt hours), kWh (kilowatt hours) or MWh (megawatt
hours). The energy is the power calculated over time. If, for example, your inverter
operates at a constant power of 1500W for half an hour and then at a constant
power of 1000 W for another half an hour, it has fed 1250 Wh of energy into the
power distribution grid within that hour.
Energy
Power is measured in W (watts), kW (kilowatts) or MW (megawatts). Power is an
instantaneous value. It displays the power your inverter is currently feeding into
the power distribution grid.
Power
Power rate is the radio of current power feeding into the power distribution grid
and the maximum power of the inverter that can feed into the power distribution
Power rate
Power factor is the ratio of true power or watts to apparent power or volt amps.
They are identical only when current and voltage are in phase than the power
factor is 1.0. The power in an ac circuit is very seldom equal to the direct product of
the volts and amperes. In order to find the power of a single phase ac circuit the
product of volts and amperes must be multiplied by the power factor.
Power Factor
PV
Abbreviation for photovoltaic
The external wireless communication technology is a radio technology that allows
the inverter and other communication products to communicate with each other.
The external wireless communication does not require line of sight between the
devices and it is selective purchasing.
wireless communication
Safety 2
2.1. Intended Use
The unit converts the DC current generated by the photovoltaic (PV) modules to
grid-compliant alternating current and performs single-phase feed-in into the
electricity grid. Growatt 750-3000-S series inverters are built according to all
required safety rules. Nevertheless, improper use may cause lethal hazards for
the operator or third parties, or may result in damage to the units and other
property.
Principle of a PV plant with this Growatt XXXX single-phase inverter
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.
PV modules 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.

Growatt 3000 Specifications

General

Brand	Growatt
Model	3000
Category	Inverter
Language	English