Siemens NXAIR Operating Instructions Manual page 384

Panels with motor operating mechanism control
The following table gives an overview of the possible access mode indications, the corresponding operating
options and their preconditions.
Indication Access mode
Access is released for
motor-operated racking
Preconditions for operating options:
•
Low-voltage connector plugged on
•
High-voltage door closed
•
Feeder earthing switch in OPEN position
•
Circuit-breaker in OPEN position
•
Control door closed and padlocked
•
Local or remote control
Access is released for manual racking
Preconditions for operating options:
•
High-voltage door closed
•
Feeder earthing switch in OPEN position
•
Circuit-breaker in OPEN position
•
Panel set to local control
•
Control door open
Racking interlocked
Preconditions for operating options:
•
Circuit-breaker in OPEN position
•
Withdrawable circuit-breaker / circuit-breaker truck in test position
•
Panel set to local control
384
INFORMATION
Blocking any racking operation is the precondition for opening the high-voltage
door.
Before opening the high-voltage door, set the access mode indicator to
"T".
NXAIR / ≤ 40 kA
Operating options
Racking the withdrawable circuit-breaker / circuit-
breaker truck electrically from test position to
service position, or from service position to test
position
Racking the withdrawable circuit-breaker / circuit-
breaker truck manually from test position to service
position, or from service position to test position
•
Closing the control door
•
Opening the high-voltage door
•
Taking the withdrawable circuit-breaker /
circuit-breaker truck out of the panel
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