IG-310-EN version 01; 31/03/2021
7
General instructions
cpg
.0 lite: GIS medium-voltage switchgear,
gas insulated, up to 24 kV,
in accordance with IEC Standard
General description
Cable compartment
Located in the bottom part of the cubicle, this has a cover,
interlocked with the earthing of the power cables, which
allows front access to the medium-voltage cables. This
compartment is prepared to withstand an internal arc up
to 25 kA - 1 s, meeting the criteria of Annex AA of Standard
IEC 62271-200, class IAC: AFL/AFLR.
In the most complete case, the base can house the following
components:
• Internal arc protection kit in cable compartment.
• Two symmetrical screened connectors with reinforced
connection (screwable) per phase, or three compact
screened connectors with reinforced connection
(screwable) per phase.
• Cable clamps for the medium-voltage cables. Range of
cable diameters admitted: from 36 to 52 mm. For other
values, please ask
Ormazabal
.
• Earthing bars for cable connectors (optional).
• Toroidal-core current transformers.
• Voltage transformers with connection via medium-
voltage cable.
All the elements making up the enclosure are earthed
by means of a conductor consisting of a copper bar,
sized to withstand the rated short-time current. This is
located in the base, meaning it does not need to be
dismantled in order to insert or remove a cable and its
corresponding termination.
Figure 1.4.
Detail of internal arc protection kit in cable compartment
Summary of Contents for cpg.0 lite
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