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Operating the circuit-breaker panel with HV HRC fuse
13.2 Position indicators visible on high-voltage door
Circuit-breaker:
CLOSED position or
OPEN position
Withdrawable circuit-breaker:
Service position, intermediate position
or test position
Spring state indicator:
CHARGED position or
NOT CHARGED position
Feeder earthing switch:
CLOSED position or
OPEN position
13.3 Access to compartments
Regarding accessibility to the individual compartments, NXAIR M switchgear fulfills the loss of service
continuity category LSC 2B according to IEC 62271-200.
The degree of protection between the individual compartments is IP2X in standard design.
The type of accessibility is provided as follows:
Compartment:
Switching-device compartment
Busbar compartment
Connection
compartment
13.4 Opening or closing the high-voltage door
The procedure for opening and/or closing the high-voltage door at the circuit breaker panel with HV HRC
fuse is identical with the procedure for opening and/or closing the high-voltage door at the circuit-breaker
panel.
For opening and/or closing the high-voltage door at the circuit breaker panel with HV HRC
fuse, see chapter 10.4 and/or 10.5.
13.5 Racking the withdrawable part
The procedure for racking the withdrawable circuit breaker / fuse combination to service position and/or test
position is identical with the procedure for racking the withdrawable circuit-breaker to service position and/or
test position.
For racking the withdrawable circuit breaker / fuse combination to service position and/or test
position, see chapter 10.7 and/or 10.8.
84
CLOSED
Service position
CHARGED
CLOSED
Access from the front side
Access from the rear side
OPEN
Intermediate position
NOT CHARGED
OPEN
Type of accessibility:
Interlock-controlled
Tool-based
Interlock-controlled and
Tool-based
Tool-based
NXAIR M
▬
Test position
▬
▬
139-2021.9 / 07
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