Connect and disconnect the AC voltage of the MV transformer
Only a duly authorized person is allowed to connect and disconnect the AC voltage of the MV transformer.
Statutory warranty and guarantee claims
Statutory warranty or guarantee claims can only be asserted if commissioning was carried out by
SMA Solar Technology AG or providing that the fully completed and signed "Commissioning Report for
MV Power Station" is on file at SMA Solar Technology AG.
6.2
Requirements for Commissioning
General requirements:
☐ None of the devices must display any damage.
☐ All devices must be correctly installed.
☐ All devices must be properly grounded.
☐ All foils in medium-voltage compartment must be removed.
☐ All transport locks and desiccant bags must be removed.
☐ The service platforms must be installed.
☐ The protection roofs must be fully extended.
☐ All devices must be properly closed and sealed.
☐ All doors and locks must function properly.
☐ All labels and signs must be in place.
☐ All cables must be correctly routed and connected to the MV Power Station.
DC side:
☐ The PV array must be checked.
☐ All cables of the PV array must be correctly connected to the Sunny String-Monitors.
☐ All cables of the Sunny String-Monitors must be correctly connected to the inverters.
☐ The polarity of the strings must be checked.
☐ The DC voltages must be checked.
☐ An insulation measurement must be carried out and recorded.
☐ All fuses of the Sunny String-Monitors must be removed.
☐ At least 50% of the PV modules of the entire PV system must be installed and connected to the inverter. The
minimum power for commissioning may deviate depending on the country. Please contact your project manager
for the exact power value.
AC side:
☐ The AC circuit breaker must be opened.
☐ The MV transformer must be connected to the utility grid.
☐ The MV transformer must not have any oil leaks.
☐ The pressure gauge for the SF6 gas on the medium-voltage switchgear gas must be in the green range.
☐ The accessories for the medium-voltage switchgear must be available.
Communication:
☐ Communication connections and the supply voltage must be connected and checked.
Documentation:
☐ All documentation must be available.
6 Commissioning
SMA Solar Technology AG
System Manual
73
MVPS22JP-SH-en-11
Summary of Contents for 1000-1SC
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