Focus on Medium Voltage
Medium Voltage Switchgear
Secondary Distribution
CGMCOSMOS Fully Gas-Insulated Modular System
Up to 27 kV
IEEE Standards
CCGMCOSMOS Fully Gas-Insulated Modular System
Up to 27 kV
MV Switchgear
Secondary Distribution
General description
Presentation
CGMCOSMOS from Ormazabal is a system of modular cubicles for
the secondary distribution of Medium Voltage.
CGMCOSMOS is modular and extendable thanks to the ORMALINK
connecting set, patented by Ormazabal in order to permit any
Medium Voltage configuration.
CGMCOSMOS offers significant features including:
• Fully gas-insulated.
• Safety, reliability and ability to withstand harsh environmental
conditions.
• Voltage levels up to 27 kV.
Areas of application
The CGMCOSMOS system is used in a wide range of public and
private installations, in particular:
• Public distribution:
• Urban and rural areas
• Medium-Voltage Users:
• Service Sector
• Industrial Sector
• Infrastructures
• Renewable energies
Standards applied
IEEE C37.74
IEEE Standard Requirements for Subsurface,
Vault, and Pad-Mounted Load-Interrupter
Switchgear and Fused Load-Interrupter
Switchgear for Alternating Current Systems Up
to 38 kV
IEEE C37.20.3
IEEE Standard for Metal-Enclosed Interrupter
Switchgear
IEEE 1247
Standard for Interrupter Switches for
Alternating Current, Rated Above 1000 Volts
IEEE C37.123
IEEE Guide to Specifications for Gas‑Insulated,
Electric Power Substation Equipment
IEEE Std C37.20.4 IEEE Standard for Indoor AC Switches
(1 kV‑38 kV) for Use in Metal-Enclosed
Switchgear
IEEE C37.04
IEEE Standard Rating Structure for AC
High‑Voltage Circuit Breakers
IEEE C37.06
AC High-Voltage Circuit Breakers Rated on a
Symmetrical Current Basis- Preferred Ratings
and Related Required Capabilities
IEEE Std C37.09
IEEE Standard Test Procedure for AC
High-Voltage Circuit Breakers Rated on a
Symmetrical Current Basis
IEEE Std C37.20.7 IEEE Guide for Testing Medium-Voltage
Metal‑Enclosed Switchgear for Internal Arcing
Faults
IEC 60529
Degrees of protection provided by enclosures.
IEC 61958
Voltage presence indicating systems.
Focus on Medium Voltage
www.ormazabal.com
Fully Gas-Insulated CCGMCOSMOS Modular System
Up to 27 kV
MV Switchgear
Secondary Distribution
Function types
Modular units
CGMCOSMOS-L
CGMCOSMOS-P
Feeder function
Fuse protection
function
CGMCOSMOS-V
CGMCOSMOS-S
Circuit-breaker
protection function
Busbar switch
function
(grounding optional
CGMCOSMOS-S-Pt)
CGMCOSMOS-RC
CGMCOSMOS-RB
Cable rise function
Busbar rise function
(available for doble
cable version:
CGMCOSMOS-R2C)
(grounding optional
CGMCOSMOS-RB-Pt)
TECHNICAL CHARACTERISTICS
CGMCOSMOS
L
P
V
S
S-Pt
Rated voltage
[kV]
up to 27
Rated frequency
[Hz]
50/60
[A]
600*
RC
R2C
RB
RB-Pt
Rated current
general busbars and
cubicle interconnection
feeder
output to transformer
[A]
600*
-
600*
600*
600*
[A]
-
200
-
-
-
Rated short-time withstand current
value tk = 1 s or 3 s
[kA]
20**
-
-
20**
peak value
[kA]
52**
-
-
52**
20** kA 1 s
-
-
20** kA 1 s
Arc fault qualification
Dimensions
Height
[inches (mm)]
Depth
[inches (mm)]
68 (1740)
Width
[inches (mm)]
14 (365)
18 (470)
19 (480)
18 (450)
14 (365)
22 (550)
14 (365)
Weight
[pounds (kg)]
220 (100)
331 (150)
529 (240)
253 (115)
88 (40)
132 (60)
220 (100)
29 (735)
29 (735)
33 (845)
29 (735)
29 (735)
* Tests conducted at 630 A current
** Tests conducted at 21 kA / 54.6 kA current
Focus on Medium Voltage
www.ormazabal.com
Fully Gas-Insulated CCGMCOSMOS Modular System
Up to 27 kV
MV Switchgear
Secondary Distribution
Principal characteristics
Protection and safety of people, property and equipment against
the effects of arc faults (IAC class), accredited with tests performed.
Ability to withstand harsh environmental conditions (including
temporary floods), long service life and absence of maintenance
of live parts provided thanks to full gas-insulation and the use of
screened connectors.
Configuration flexibility for all configurations. The ORMALINK
connecting set, patented in 1991 by Ormazabal, offers full modularity
and the option to extend in the future in either direction.
Easy-to-handle and install thanks to reduced size and weight.
Safe and simple operation through the use of user-friendly driving
mechanisms, including interlocks as standard.
Presentation of ORMALINK
Additional safety through the use of ekorSYS units: ekorVPIS, voltage
presence indicator; and ekorSAS, grounding prevention acoustic
alarm.
Option to mount accessories and perform live voltage tests.
Fuse holder tubes in horizontal position, with frontal access and
protected in the gas tank.
Easy-to-connect cables using plug-in or screw-in connectors, with
frontal alignment.
Commitment to the environment through:
• The use of highly recyclable materials.
• Minimization of gas volume per functional unit.
• Product life cycle management.
ÎÎ For other values, please consult our Technical and Commercial
Department
Fuse installation
and operating
CONDITIONS OF SERVICE
Installation
Interior
Maximum ambient temperature
104 ºF (+40 ºC *)
Minimum ambient temperature
23 ºF (-5 ºC **)
Minimum storage temperature
-40 ºF (-40 ºC)
Average maximum ambient temperature, measured over 24 h
95 ºF (+35 ºC)
Average maximum relative humidity, measured over 24 h
< 95%
Average maximum steam pressure, measured over 24 h
22 mBar
Average maximum steam pressure, measured over 1 month
18 mBar
Maximum height above sea level
Solar radiation
Environmental air pollution (dust, salinity, etc.)
Vibrations (seismicity)
6,500 feet (2000 m #)
Negligible
Insignificant
Negligible
* For special conditions, please consult our Technical and Commercial Department.
** Cubicles for 5 ºF (-15 ºC), -13 ºF (-25 ºC) and -22 ºF (-30 ºC) also available.
# For special altitudes, please consult our Technical and Commercial Department.
Focus on Medium Voltage
www.ormazabal.com
MV Switchgear
Secondary Distribution
Fully Gas-Insulated CCGMCOSMOS Modular System
Up to 27 kV

Safety
Arc fault. The CGMCOSMOS cubicles are designed to protect people
and property from the effects of an arc fault:
• Internal arc in tank AF: 20* kA 0.5 s
• Internal arc in tank AFL: 20* kA 1 s
• Class IAC AFL / IEEE Std C37.20.7: 20* kA 1 s
These cubicles have standard internal safety locks to enable a safe
and reliable service.
The cubicles in the CGMCOSMOS system independently admit the
locking of operations by padlocking the switch and the grounding
switch.
Capacity to withstand harsh environmental conditions. The
breaking and making components are located inside a stainless steel,
leak-proof and hermetically sealed tank.
The position of the switch is reliably displayed on the synoptic scheme,
and validated by the kinematic chain test in accordance with the
applicable standard.
The full insulation with SF6 gas enables the unit to withstand harsh
environmental conditions (damp, salinity, dust, contamination, etc.)
and provides protection against indirect contact.
The leak-proof tank maintains the optimum operating conditions
during the service life of the cubicle.
The grounding prevention acoustic alarm unit ekorSAS is an acoustic
signal that works in association with the grounding switch shaft and
with the ekorVPIS voltage presence indicator.
ekorVPIS is a self-powered indicator integrated in the cubicles
which displays the presence of voltage in the phases through three
permanent light signals, designed in accordance with the Standard.
ekorSPC
The phase comparator, ekorSPC can be supplied on request from
Ormazabal.
QUALITY OF ELECTRICAL SUPPLY
The cubicles in the CGMCOSMOS system contribute to improving
electrical distribution in Medium Voltage networks up to 27 kV
through:
•Routine and traceability factory-testing in all equipments.
•Interlocks between the switching and breaking components.
•Visual display of the position of the switchgear on the synoptic
diagram, validated by the kinematic chain test.
•High anticorrosive levels, obtained using new materials.
•Option to mount accessories and perform live voltage tests
in the operation mechanism zone.
•Easy-to-connect cables using plug-in or screwed connectors.
• Optional integration of protection, control and/or
telemanagement units.
ÎÎ * Tests performed at 21 kA
Focus on Medium Voltage
www.ormazabal.com
Focus on Medium Voltage
TECHNICAL-COMMERCIAL DEPARTMENT
Tel.: 203 983 8176
ygi@ormazabal.com
www.ormazabal.com
Products, applications, solutions:
xx
Primary distribution switchgear
xx
Secondary distribution switchgear
xx
Automation, protection, remote control y
communications in electrical networks
xx
Distribution transformers
xx
Low-Voltage Switchboards
xx
Transformer substations
xx
Medium-Voltage applications for
renewable energies
CA-329-US-1104