ABB PVS800-IS, Руководство по оборудованию, Страница: 42 / 68

Additional information Task
Pre-checking the transformer (voltage not connected)
See the transformer manufacturer’s instructions.
Pre-checking the inverters (voltage not connected)
PVS800-57B hardware manual
(3AXD50000048300 [English]) and PVS800-57B
central inverters firmware manual
(3AXD50000048332 [English]).
Perform the inverter commissioning tasks/checks
to be done before power-up.
Connecting the solar power generator and commissioning the inverters
Close any disconnecting devices between the
solar generator and the inverter DC input termin-
als.
Measure the DC supply voltage level at each input
terminal of the inverter [PVS1] to verify polarity
and voltage range conforms to inverter technical
data.
Close the DC disconnector [Q1] of the first inverter
[PVS1].
PVS800-57B hardware manual
(3AXD50000048300 [English]) and PVS800-57B
central inverters firmware manual
(3AXD50000048332 [English]).
Perform the inverter commissioning tasks/checks
that can be done with only the DC supply connec-
ted.
Repeat the above commissioning tasks for the
second inverter [PVS2].
Simulate transformer faults (unpowered) and en-
sure that the inverters detect the fault indications
and trip accordingly.
Turn the earthing switch at the grid-side of the
switchgear to the “not earthed” position.
Ask the power grid owner to connect the inverter
station to the power grid.
Wait until the inverter station has been connected
to the power grid before proceeding.
Turn the disconnecting switch at the grid side of
the switchgear to the closed position.
Turn the earthing switch at the transformer side
of the switchgear to the “not earthed” position.
Turn the disconnecting switch at the transformer
side of the switchgear to the closed position.
Close the main breaker or switch fuse combination
of the transformer.
According to the operating instructions of the
transformer. Check that the voltage level on the low voltage
side of the transformer is correct. Adjust the
transformer tap settings if needed.
According to the operating instructions of the
transformer.
Run the transformer with no load for several hours
before proceeding to the tasks under the section
Connecting the inverters to AC sup-
ply (page 42)
.
Observe the transformer for any malfunction.
Monitor the temperature, check for audible
changes etc.
Connecting the inverters to AC supply
42 Start-up