Electrical Limiting Values For The Generator; Operating Modes For The Generator - SMA SUNNY ISLAND 8.0H Installation Manual

SMA Solar Technology AG
10.7.4 Electrical Limiting Values for the Generator
The configuration of electrical limiting values allows generator management to prevent overloading
of the generator and to detect and react to malfunctions.
Configurable limit
Maximum generator current
Frequency of generator voltage The limiting values for the frequency and the value of the
Value of generator voltage
Maximum generator reverse
power
10.8 Operating Modes for the Generator
The generator management distinguishes between manual generator mode and automatic generator
mode.
Manual generator mode:
In manual generator mode, you can control generators with an autostart function and generators with
GenMan at any time using the Sunny Remote Control. The following options are available for
controlling the generator:
• Start the generator on the off-grid inverter.
If you start the generator manually on the off-grid inverter, you must also stop the generator
manually.
• Stop the generator on the off-grid inverter.
• Start the generator on the off-grid inverter for one hour.
You do not need to stop the generator again. The generator runs for one hour.
Installation Manual
Explanation
Generator management limits the consumption of generator
current to a set maximum value. This prevents overloading of the
generator.
generator voltage directly affect the power quality in the
stand-alone grid.
Reverse power to the generator can occur if the AC sources in the
stand-alone grid supply more current than the off-grid system
requires. The generator is powered by the generator reverse
power. Depending on the generator, reverse generator power
results in the automatic disconnection, instability or destruction of
the generator.
You can set the active power for reverse power and the permitted
time for reverse power. If the reverse power exceeds the limiting
values, the generator management disconnects the generator
from the stand-alone grid. This protects the generator.
10 External Energy Sources in the Off-Grid System
SI80H-60H-OffGrid-IA-en-11 133