Ormazabal cgmcosmos-p User Manual

1.3.1. Gas tank
Sealed compartment which houses the busbar and the
switching and breaking elements, where the insulating
medium is SF
6
.
Each gas tank has a pressure relief device to allow gases to
escape in the event of an internal arc.
Thanks to the hermetically-sealed nature of the gas
tank containing all the medium voltage elements, the
equipment is expected to have a minimum service life of 30
years, without replenishing the gas according to Standard
IEC 62272-1.
Figure 1.2. Gas tank for cgmcosmos-l
1.3.2. Driving mechanism compartment
This is the compartment in which the switch-disconnector
or the circuit-breaker is actuated, depending on the type of
function.
The mimic diagram for the main medium voltage circuit
is displayed on the cover of this compartment. The mimic
diagram includes all the position indicators for the driving
elements.
The cgmcosmos system has, in line with the cubicle model,
the following types of driving mechanism:
B
Tilting l
BM
Motorised tilting l
AR
Accumulation of energy with latch p
ARM
Accumulation of energy with motorised latch p
RAV
Circuit-breaker with reclosing option v
RAMV
Circuit-breaker with motorised reclosing option v
Figure 1.1. Types of driving mechanisms
These elements are operated independently, i.e., their
actuation speed does not depend on the speed of the
manual operation.
The B, BM, AR and ARM driving mechanisms can be replaced
by upgrading in any of the three positions (closed - open -
earth). Whilst the driving mechanism is withdrawn, these
positions of the switch can be blocked using a coupling
device, whether in service or not.
IG-296-EN version 01; 12/03/2020
6
General description General instructions
cgmcosmos: Medium voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard

Ormazabal cgmcosmos-p Specifications

General

Brand	Ormazabal
Model	cgmcosmos-p
Category	Control Systems
Language	English