Busbar compartment
This is used for connecting cubicles. It has solid and shielded
insulation, grounded by means of the compartment’s
specific grounding bar.
In case of internal arc, the busbar compartment disposes
some additional passive elements for internal arc protection.
Toroidal current transformers and/or plug-in voltage
transformers can be installed in this compartment, thus
avoiding the need for metering cubicles.
Figure 1.3.
Phase segregation in the busbar (optional)
Cable compartment
Located in the lower part of the cubicle, this has a cover,
interlocked with the grounding circuit, which allows front
access to the medium voltage cables.
In the most complete case, the base can house the following
components:
• Phase segregation assembly (optional).
• Up to 4 reinforced shielded connection terminals
(screw-in) per phase.
• Clamp flanges for the medium voltage cables.
• Grounding bars.
• Toroidal current transformers.
• Plug-in voltage transformers.
All the elements making up the enclosure are
grounded by means of a conductor consisting of a
copper bar, sized to withstand the rated short-time
current. This bar is located in the base in a way that it
does not need to be dismantled in order to insert or
remove a cable and its corresponding termination.
Figure 1.4.
Detail of the main box and the segregating cover
IG-196-US version 03; 13/04/2021
6
General description
General instructions
cpg
.0 NEW MODEL: Medium-voltage
metal-enclosed switchgear with full insulation in gas,
up to 38 kV in accordance with IEEE Standards
Содержание cpg.0-c
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