IG-273-EN version 03; 05/08/2020
8
General description General instructions
cpg.0 ENA range
Incoming cable connections (bushings)
The cpg.0 cubicles have bushings on the front for medium-
voltage cable connection. These are made of epoxy resin
and can, due to their conguration, incorporate the current
transformers. They are screened and designed in line with
Standard EN 50181, being of type “C2”.
They allow the connection of conductors of up to 800 mm
2
through screw-on separable connectors. The cable
compartment of the 1250 A unit can be used to install up to
three cables per phase (four on request).
Figure 1.7. 1250 A cable compartment
The 2000/2500 A unit incorporates 2xC2 bushings per
phase and can accommodate 6 cables per phase.
Figure 1.8. 2000/2500 A cable compartment
Control compartment
Placed at the top of the cubicle and separate from the
medium-voltage area, this is ready for installation of the
metering equipment and protection relays. It contains
the terminal blocks with the control signals identied in
accordance with the wiring diagram provided with the
equipment. The use of multipole connectors makes the
assembly more exible, and allows the control box to be
assembled and connected on site in a straightforward,
direct way (current transformers and voltage transformers
connections are directly wired).
Figure 1.9. Control compartment detail
Driving mechanism
In addition to a mimic diagram customised for each type
of cubicle, this has the driving elements in its middle
section: disconnector/earthing switch and circuit-breaker
driving mechanisms, circuit-breaker opening/closing push-
buttons, status indicators, provision for access of the springs
charging lever, etc.
To Next Page
Loading...
Need help?
General
