Commissioning procedure
210 NXAIR / ≤ 40 kA 110-0084.9 / 15
Applying operational high voltage to the busbar
Electric shock
During operation of the panels, parts of those are under life-endangering electrical
voltage. Only completely assembled and tested panels can be connected to
operational high voltage.
Before switching on operational high voltage:
The installation has been completely checked as described in these
instructions.
Test operation was carried out without malfunctions
Energize the incoming feeder in the respective opposite substation.
Connect the incoming feeder to the busbar. To do this, rack the withdrawable part / switching-
device truck to service position and close the circuit-breaker, see Operating Instructions with
order number 110-0134.9.
The busbar of the panels is now connected to operational high voltage.
Energizing further incoming feeders
Phase sequence
Short-circuit on the busbar in case of different phase sequence of the incoming
feeders.
Verify that all incoming feeders have the same phase sequence.
Verify phase coincidence of the respective incoming feeder and the busbar.
Energize tested incoming feeder.
Energizing consumer feeders
After having energized all incoming feeders:
Switch on all feeders with connected consumers successively.
Now all feeders are energized.
Thus, the switchgear is completely in operation.
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