Sungrow SG1K5TL-31, User Manual

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SG1K5TL-31
User Manual
36
5.6
Connecting Inverter to AC Grid
5.6.1
Safety
Only after receiving prior approval from the utility company, should you
connect the inverter to the local utility grid.
The grid should meet these following requirements. Otherwise the inverter will
not work.
z
Grid Voltage 174~274Vac
z
Grid Frequency 47~52.5Hz/57~62.5Hz
The grid connection of inverter SG1K5TL-31 is made via 3 wires (L, N and PE).
Feeding power is always single-phase via AC terminal at the bottom of the unit.
An appropriately sized AC circuit breaker is suggested as a protection equipment in
AC connection, as shown in Fig 5-2.
Requirements of Inverter Parallel Grid Connection
If several inverters are operated in parallel connection to grid, there are different
requirements according to different scenarios.
Scenario 1: Several inverters are operated in parallel connection to the single-phase
Low Voltage grid.
Requirements: The sum of all inverters in parallel connection is limited to TEN .
Scenario 2: Several inverters are operated in parallel connection to the three-phase
Low Voltage grid.