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4. Panel design and equipment
4.5 Plug connector coding
The control wiring plug connector coding allows
withdrawable parts for switching devices to be
assigned to particular panels. This ensures, for
example, that withdrawable parts with different
rated currents or different control wiring circuits
can only be used in the panels they are intended
for. Coding pins are fitted in the control wiring
sockets or control wiring plugs and engage with
the corresponding bores of the relevant plug or
socket when the two parts are connected.
The plug connector coding is order-related, and is
noted in the relevant wiring documentation.
Coding:
The corresponding coding designation for the
control wiring plug is given in brackets. The
coding pins can be fitted in the control wiring
socket and/or in the control wiring plug.
Basic design:
The number of sockets is optional, but the basic
assignment is 1, 8, 10, 20, 21, 31, 33 and 40.
Sockets and pins can be mixed as required in the
control wiring socket and control wiring plug.
4.6 Arc protection fibers/
sensors into the switchgear
To increase the safety of operational staff and to
protect high-voltage switchgear equipment,
various additional protection devices are used as
well as regulations, guidelines, etc.
These protection devices work on the basis of
detecting flashes inside a switchgear, which is
the first sign signalling a shortcut or breakdown.
In case of instalation of the arc protection fibers
or sensors please follow aditional manual
1VLD100104 or contact ABB.
Figure 27: Control wiring plug connector coding, shown
for a 58-pole connector
1 Bore for actuating pin of the control wiring plug for
controlling the auxiliary switch
2,4 Centering striking tabs
3 Control wiring socket
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