Removing Or Plugging On The Low-Voltage Connector; Taking The Withdrawable Disconnector Link / Disconnector Truck Out Of A Panel Or Inserting In A Panel; Earthing Or De-Earthing The Feeder Manually; Design Of The Withdrawable Disconnector Link / Disconnector Truck - Siemens NXAIR Operating Instructions Manual

Air-insulated switchgear ≤ 17.5 kv / ≤ 40 ka / ≤ 4000 a busbar current
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11.6 Removing or plugging on the low-voltage connector

The procedure for removing and/or plugging on the low-voltage connector in the disconnecting panel is
identical with the procedure for removing and/or plugging on the low-voltage connector in the circuit-breaker
panel.
For removing and/or plugging on the low-voltage connector in the disconnecting panel, see
chapter 10.18 and/or 10.19.
11.7 Taking the withdrawable disconnector link / disconnector truck out of a panel or inserting in a
panel
The procedure for inserting and/or removing the withdrawable disconnector link / disconnector truck in the
disconnecting panel is identical with the procedure for inserting and/or removing the withdrawable circuit-
breaker / circuit-breaker truck in the circuit-breaker panel.
For inserting and/or removing the withdrawable disconnector link in the disconnecting panel,
see chapter 10.20 and/or 10.21.
For inserting and/or removing the disconnector truck in the disconnecting panel, see chapter
10.22 and/or 10.23.

11.8 Earthing or de-earthing the feeder manually

The procedure for earthing and/or de-earthing the feeder in the disconnecting panel is identical with the
procedure for earthing and/or de-earthing the feeder in the circuit-breaker panel.
For earthing and/or de-earthing the feeder in the disconnecting panel, see chapter 10.16
and/or 10.17.

11.9 Design of the withdrawable disconnector link / disconnector truck

Fig. 165: Design of the withdrawable disconnector link /
disconnector truck (example)
110-0134.9 / 14
Operating the disconnecting panel
1
(1) Handle for pulling
(2) Contact arm assembly with tulip contact
2
(3) Racking mechanism
3
NXAIR / ≤ 40 kA
101

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