Commissioning procedure
110-0084.9 / 15 NXAIR / ≤ 40 kA 209
Malfunction during test operation
Detection of an error
Do not put the switchgear into operation.
Inform the regional Siemens representative.
Checking the switching process and the position indicators
Rack each withdrawable part / switching-device truck from test position to service position and
back five times. At the same time, check whether the associated positions of the withdrawable
part / switching-device truck are displayed correctly at the panel and, if applicable, in the control
room.
Switch each earthing switch from the OPEN to the CLOSED position and back five times, see
Operating Instructions with order number 110-0134.9. At the same time, check whether these
switch positions are correctly indicated on the panel and in the control room, if applicable.
Close and open each circuit-breaker five times locally and from remote for test, see Operating
Instructions with order number 110-0134.9. At the same time, check whether the switch
positions are correctly indicated on the panel and in the control room, if applicable, and whether
the auxiliary switches and position switches operate correctly.
Close and open each switch-disconnector fuse combination five times for test, see Operating
Instructions with order number 110-0134.9. At the same time, check whether the switch
positions are correctly indicated on the panel and in the control room, if applicable, and whether
the auxiliary switches and position switches operate correctly.
Check the function of the existing shunt closing and shunt opening releases by electrical
operation.
14.8 Switching on operational high voltage
Preparations before switching on
Preconditions
• The operating personnel was trained
• The assembly work was successfully checked
• The test operation was successfully carried out without malfunctions
Procedure
Close all high-voltage doors of the panels.
Open all circuit-breakers, see Operating Instructions with order number 110-0134.9.
Rack all withdrawable parts / switching-device trucks to test position, see Operating Instructions
with order number 110-0134.9.
If there is a panel without connected cables in the connection compartment, the earthing switch
in the connection compartment must be switched to CLOSED position; to do this, see Operating
Instructions with order number 110-0134.9.
Check whether all consumers connected to all outgoing feeders are switched off.
If necessary, switch off any energized consumers.
Operational high voltage can now be switched on, and the panels can be put into operation.
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