Operating The Three-Position Disconnector; Operating Levers For Three-Position Disconnector - Siemens NXPLUS C Installation And Operating Instructions Manual

Medium-voltage switchgear/wind fixed mounted circuit-breaker switchgear up to 36 kv, extendable
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Operation
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21

Operating the three-position disconnector

This section describes the switching operations:
• DISCONNECTING and READY-TO-EARTH with the three-position disconnector in the circuit-
breaker panel
• DISCONNECTING and EARTHING with the three-position disconnector in the disconnector
panel
The manual switching operations DISCONNECTING or EARTHING/READY-TO-EARTH must be
pre-selected. Pre-selection is only possible if the associated switching operation is permissible.
The operating levers for the three-position disconnector are coded and identified by color:
• Operating lever for DISCONNECTING operation
• Operating lever for switching EARTHING/READY-TO-EARTH operation: Red painting (handle
painted red)
NOTE!
The interrogation lever is only available at the circuit-breaker panel (600 mm wide). Except for
this difference, the operation of the three-position disconnector is identical in both panel types.
The operation is always described and shown with interrogation lever.
Observe the specific panel type during operation.
21.1

Operating levers for three-position disconnector

Fig. 123: Operating lever for DISCONNECTING
function
Fig. 125: Socket nut for operating lever,
DISCONNECTING function
Revision 05 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C Wind • 802-9074.9
Fig. 124: Operating lever for EARTHING/
READY-TO-EARTH function
(handle painted red)
Fig. 126: Socket nut for operating lever,
EARTHING/READY-TO-EARTH
function

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