Panels with motor operating mechanism control
384 NXAIR / ≤ 40 kA 110-0134.9 / 14
The following table gives an overview of the possible access mode indications, the corresponding operating
options and their preconditions.
Access is released for
motor-operated racking
Racking the withdrawable circuit-breaker / circuit-
breaker truck electrically from test position to
service position, or from service position to test
position
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
Racking the withdrawable circuit-breaker / circuit-
breaker truck manually from test position to service
position, or from service position to test position
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
• Closing the control door
• Opening the high-voltage door
• Taking the withdrawable circuit-breaker /
circuit-breaker truck out of the panel
Preconditions for operating options:
• Circuit-breaker in OPEN position
• Withdrawable circuit-breaker / circuit-breaker truck in test position
• Panel set to local control
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".
To Next Page
Loading...
