Focus on Medium Voltage
MV Switchgear
Secondary Distribution Networks
CGM.3 System – 40.5 kV Series
Fully Gas-Insulated Cubicles
Up to 40.5 kV
CGM.3 System – 40.5 kV Series
Fully Gas-Insulated Cubicles
Up to 40.5 kV
MV Switchgear
Secondary Distribution Networks
General description
Presentation
Ormazabal’s CGM.3 System - 40.5 kV Series consists of SF6 fully
insulated modular cubicles for Medium Voltage Secondary Distribution
networks up to 40.5 kV.
CGM.3 System results from the implementation of new technologies,
standards and materials, alongside the improvements arising from the
experience gained since the beginning of the 1990s with CGM-CGC
system.
This development brings a highly safe, reliable and user-friendly
assembly, capable of withstanding harsh environmental conditions.
The performance of routine tests across the various phases of the
assembly procedure and the use of the most innovative manufacturing
techniques assure the highest level of quality in CGM.3 System, as
reflected in its ISO 9001 certification.
Areas of application
Used for a wide variety of facilities, both public and private, its main
applications are:
• Utility transformer substations. • Infrastructures.
• Private transformer
substations.
• Industrial facilities.
• Switching substations.
• Photovoltaic facilities.
• Remote controlled
substations.
• Co-generation facilities.
• Wind farms.
Standards applied
CGM.3 system cubicles comply with the following standards:
International Standards:
Common speci fications for
IEC 62271-1
high-voltage switchgear and
controlgear standards.
IEC 62271-200 Alternating current metal-enclosed
switchgear and controlgear for rated
voltages above 1 kV and up to and
including 52 kV.
IEC 62271-102 Alternating current disconnectors and
earthing switches.
High voltage switches for rated
IEC 60265-1
voltages above 1 kV up to and
including 52 kV.
IEC 62271-105 Alternating current switch fuse
combinations.
IEC 62271-100 High voltage switchgear.
Part 100: High voltage alternating
current circuit-breakers.
Degrees of protection provided by
IEC 60529
enclosures.
Voltage presence indicating systems.
IEC 61958
Focus on Medium Voltage
Chinese standards:
GB/T 11022 Common specifications for high-voltage
switchgear and controlgear standards.
GB/T 3906
GB/T1984
GB/T 3804
GB/T 1985
Alternating current metal-enclosed
switchgear and controlgear for rated
voltages above 3.6 kV and up to and
including 52 kV.
High-voltage alternating-current circuit
breakers.
High voltage switches for rated voltages
above 3.6kV and up to and including
40.5 kV.
High-voltage alternating-current
disconnectors and earthing switches.
www.ormazabal.com
CGM.3 System – 40.5 kV Series
Fully Gas-Insulated Cubicles
Up to 40.5 kV
MV Switchgear
Secondary Distribution Networks
Function types
Modular units
CGM.3-L
CGM.3-P
Feeder function
Fuse protection
function
CGM.3-V
CGM.3-RB
Circuit-breaker
protection function
Busbar rise function
CGM.3-RC
Cable rise function
TECHNICAL CHARACTERISTICS
CGM.3 - 40.5 kV Series
L
Rated voltage (max.)
[kV]
Rated frequency
[Hz]
38.5
P
40.5
38.5
V
40.5
38.5
RB
40.5
38.5
RC
40.5
38.5
40.5
80
95
50
Rated current
general busbars
[A]
feeder / transformer
[A]
630
630
200
630
630
Rated withstand voltage at power frequency for 1 min.
between phases and phase-to-earth
[kV]
80
95
80
95
80
95
Isolating distance
[kV]
90
118
90
118
90
118
80
95
-
-
Rated lightning impulse withstand voltge
between phases and phase-to-earth
[kV]
180
185
180
185
180
185
Isolating distance
[kV]
210
215
210
215
210
215
180
185
-
180
185
-
Rated short-time withstand current
value tk = 1 s or 3 s
[kA]
peak value
[kA]
Arc fault qualification IAC AF/AFL
20*
-
50
-
20* kA 1 s
-
Dimensions
Height
[mm]
Depth
[mm]
850
1010
850
850
831
Width
[mm]
418
480
600
418
367
[kg]
162
230
255
138
42
Weight
1745
* Tests conducted at 21 kA
Focus on Medium Voltage
www.ormazabal.com
CGM.3 System – 40.5 kV Series
Fully Gas-Insulated Cubicles
Up to 40.5 kV
MV Switchgear
Secondary Distribution Networks
Principal characteristics
Protection and safety for people, goods and equipment against
internal arc effects, proven through tests performed in accordance
with IEC 62271‑200 standard.
Capable of withstanding harsh environmental conditions
(including temporary flooding), long service li fe and absence o f
maintenance in live parts through full gas insulation and the use of
screened connectors.
Full modularity and future extensibility in both directions
through Ormazabal’s patented ORMALINK connecting set.
Flexibility to configure all types of diagram.
Small size and low weight, making handling and installation
easier.
Safe and simple operation through the use of user-friendly
driving mechanisms, including interlocks as standard.
Extra safety: incorporation of ekorVPIS, a light voltage presence
indicator; and, optionally, ekorSAS, an acoustic alarm preventing
earthing.
Accesories and live testing as an option.
Horizontal fuse holders with front access, protected within a gas tank.
Easy cable connection through front plug-in or screwable
terminals.
Environmentally-friendly:
• Use of highly recyclable materials.
• Minimal gas volume per functional unit.
• End-of-life product management.
ORMALINK connecting set
ÎÎ For other values, please consult Ormazabal’s
Technical‑Commercial Department
Fuse type
Transformer Rated Power
[kVA]
100
Ur
Network
Ur
Cubicle
[kV]
[kV]
35/36
40.5
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
31.5
40
40
50
63
Fuse Rated Current IEC 60282-1
[A]
6.3
6.3
10
16
16
16
20
20
31.5
ÎÎ Remarks:
•General operating conditions: without overload and
tempertature < 40 ºC.
•Value marked with (*) corresponds to SSK-type fuse.
•Maximum permitterd power loss for a fuse < 75 W.
•Recommended fuses: SIBA 20/36 kV, type HH, medium
type striker, for functional units up to 36 kV; and SIBA HHD
TB 40.5 kV, medium type striker, for functional units up to
40.5 kV (according to IEC 60282‑1).
For other brands of fuses and for protection with overload,
please contact Ormazabal’s Technical-Commercial
Department.
•Temperature-rise testing of the fuse switch assembly
according to IEC 62271‑105.
Focus on Medium Voltage
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CGM.3 System – 40.5 kV Series
Fully Gas-Insulated Cubicles
Up to 40.5 kV
MV Switchgear
Secondary Distribution Networks
Safety
CGM.3 cubicles are designed to protect people and goods against the effects
of internal arcs, complying with the criteria of standard IEC 62271-200,
Appendix A:
• Gas tank internal arc: 20* kA 0.5 s
• Gas tank internal arc: 20* kA 1 s
• IAC AFL Class: 20* kA 1 s
These cubicles have standard internal safety locks to enable a safe and
reliable service. Also CGM.3 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 full insulation with SF6 gas enables the unit to withstand harsh
environmental conditions (damp, salinity, dust, contamination, etc.) and
provides protection against indirect contact.
Gas tank
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, self-powered and integrated in the
cubicles which displays the presence of voltage in the phases through three
permanent light signals, designed in accordance with the Standard.
The phase comparator, ekorSPC can be supplied on request from
Ormazabal.
ÎÎ
(*) Tests performed at 21 kA
ekorSYS family
Ormazabal supplies full Medium Voltage facilities which include
protection, control and automation functions.
Focusing on Medium Voltage, Ormazabal has a broad range of
protection and automation applications and services capable of
meeting the needs of any distribution network.
Ormazabal’s patented ekorSYS cubicle-integrated units provide the ideal
solution for implementation in the most demanding of facilities, offering a high
level of service in comparison with conventional systems.
Protection
Automation and remote control
• Medium Voltage client supply
• Remote control
• ekorRPG
• ekorRPT
• ekorUCT
• Protection for switching substations and industrial clients
• ekorRPS
• ekorRPGci
• ekorRPTci
• Protection for rural Transformer Substations (CTR)
• ekorRPT-K
• Engine-generator set protection unit
• ekorUPG
• Substation protection
• ekorRPS-TCP
Telemanagement and communication
• ekorGID
• ekorRCI
• ekorCCP
• CGMCOSMOS-2LPT
• Automatic transfer
• ekorSTP
• ekorRTK
• ekorCCP
• Fault detection
• ekorRCI
• Voltage presence acoustic alarm system
• ekorSAS
• Secondary switching point
Software
• ekorSOFT
Dispatching centre
Focus on Medium Voltage
www.ormazabal.com
Focus on Medium Voltage
TECHNICAL-COMMERCIAL DEPARTMENT
Tel.: +34 94 431 87 31
Fax: +34 94 431 87 32
www.ormazabal.com
Products, applications, solutions:
xx
Primary distribution switchgear
xx
Secondary distribution switchgear
xx
Automation, protection, remote control &
communications in electrical networks
xx
Distribution transformers
xx
Low-Voltage Switchboards
xx
Transformer substations
xx
Medium-Voltage applications for
renewable energies
As a result of the continuous development of standards and new designs,
the characteristics of the elements contained in this specification may be
changed without prior notice.
These specifications and the availability of the materials will only be valid
if confirmed by our Technical-Commercial Deparment.
CA-313-GB-1105