Electrical Connection - Growatt 1500-US Installation & Operation Manual

5.6 Electrical Connection

5.6.1 Safety
Danger to life due to lethal voltages!
High voltages which may cause electric shocks are present in the
conductive parts of the inverter. Prior to performing any work on
the inverter, disconnect the inverter on the AC and DC sides
DANGER
Danger of damage to electronic components due to electrostatic
discharge.
Take appropriate ESD precautions when replacing and installing the
WARNING
inverter.
Grounding
Before connecting the power cables, you much connect both ground
wire of DC and AC side in wire box first.
DANGER
5.6.2 System Diagram with Inverter Electrical
Intended Use
The unit converts the DC current generated by the photovoltaic (PV) modules to grid-
compliant alternating current and feed-in into the electricity grid. Growatt 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.
This unit or system is provided with fixed trip limits and shall not be aggregated
above 30 kW on a single Point of Common Connection.
PV Panel: Provide DC power to inverter.
Converts DC (Direct Current) power from PV panel to AC (Alternating Current)
power. Because Inverter is grid-connected, it controls the current amplitude according to
the PV Panel power supply. Inverter always tries to convert the maximum power from your
PV panel.
Connection system: This "interface" between Utility and PV-Inverter may consist of
electrical breaker, fuse and connecting terminals. To comply with local safety standards
and codes, the connection system should be designed and implemented by a qualified
technician.
Utility: Referred to as "grid" in this manual, is the way your electric power company
provides power to your place.
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Position
A
B DC load circuit fuse or breaker
C
D
AC load circuit fuse or breaker
E
F
Single inverter System Installation
PV array Inverter
AC
DC
For 240 split phase
PV array Inverter
DC
For 208/240 delta 3-phase
Description
PV modules
Growatt Inverter
Energy meter
Utility grid
Breaker Fuse Energy Meter
L1
L1
N
L2 L2
N
PE
Breaker Fuse Energy Meter
L1
L1
AC
L2
L2
N
PE
20