Ormazabal cgmcosmos-l Instruction manual

cgmcosmos system
Medium voltage switchgear and
control gear, fully insulated in SF
6
gas up to 24 kV with external cable test
device
General Instructions
IG-257-EN version 01; 03/02/2016

Legal deposit: BI-1414/2015
CAUTION!
When medium-voltage equipment is operating, certain components are live, other parts may be in movement and some
may reach high temperatures. Therefore, the use of this equipment poses electrical, mechanical and thermal risks.
In order to ensure an acceptable level of protection for people and property, and in compliance with applicable environmental
recommendations, Ormazabal designs and manufactures its products according to the principle of integrated safety, based
on the following criteria:
• Elimination of hazards wherever possible.
• Where elimination of hazards is neither technically nor economically feasible, appropriate protection functions
are incorporated in the equipment.
• Communication about remaining risks to facilitate the design of operating procedures which prevent such
risks, training for the personnel in charge of the equipment, and the use of suitable personal protective
equipment.
• Use of recyclable materials and establishment of procedures for the disposal of equipment and components
so that once the end of their service lives is reached, they are duly processed in accordance, as far as
possible, with the environmental restrictions established by the competent authorities.
Consequently, the equipment to which the present manual refers complies with the requirements of section 11.2 of
the IEC standard 62271-1. It must therefore only be operated by appropriately qualified and supervised personnel, in
accordance with the requirements of Standard EN 50110-1 on the safety of electrical installations and Standard EN 50110-
2 on activities in or near electrical installations. Personnel must be fully familiar with the instructions and warnings contained
in this manual and in other recommendations of a more general nature which are applicable to the situation according to
current legislation[1].
The above must be carefully observed, as the correct and safe operation of this equipment depends not only on its design
but also on general circumstances which are in general beyond the control and responsibility of the manufacturer. More
specifically:
• The equipment must be handled and transported appropriately from the factory to the place of installation.
• All intermediate storage should occur in conditions which do not alter or damage the characteristics of the
equipment or its essential components.
• Service conditions must be compatible with the equipment rating.
• The equipment must be operated strictly in accordance with the instructions given in the manual, and the
applicable operating and safety principles must be clearly understood.
• Maintenance should be performed properly, taking into account the actual service and environmental
conditions in the place of installation.
The manufacturer declines all liability for any significant indirect damages resulting from violation of the guarantee, under
any jurisdiction, including loss of income, stoppages and costs resulting from repair or replacement of parts.
Warranty
The manufacturer guarantees this product against any defect in materials and operation during the contractual period. In
the event that defects are detected, the manufacturer may opt either to repair or replace the equipment. Improper handling
of this equipment and its repair by the user shall constitute a violation of the guarantee.
Registered Trademarks and Copyrights
All registered trademarks cited in this document are the property of their respective owners. The intellectual property of this
manual belongs to Ormazabal.
[1] For example, in Spain, "Regulations on technical conditions and safety guarantees in high-voltage electrical installations" - Royal Decree
337/2014 is mandatory .
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
In view of the constant evolution in standards and design, the characteristics of the elements contained in this manual are
subject to change without prior notification. The validity of these characteristics, as well as the availability of components,
are subject to confirmation by Ormazabal.

General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
3
Index
1 General description ..................................................... 4
1.1 Models ...................................................................4
1.2 Applicable standards ........................................................4
1.3 Main components...........................................................5
1.4 Dimensions and weights .....................................................8
1.5 Operating conditions ........................................................8
2 Handling and transport service............................................ 9
2.1 Lifting methods.............................................................9
3 Storage .............................................................. 11
4 Installation............................................................ 12
4.1 Unpacking the equipment ...................................................12
4.2 Location of accessories during transport ........................................12
4.3 Minimum installation distances ...............................................13
4.4 Incoming cable pits recommended ............................................14
4.5 Fastening to the floor .......................................................15
4.6 Connecting the cubicles.....................................................18
4.7 Earthing the switchgear and control gear assembly ...............................18
4.8 Cable connections .........................................................18
5 Recommended sequence of operations.................................... 27
5.1 Checking the gas pressure ..................................................27
5.2 Voltage presence indicator ..................................................27
5.3 Checking phase balance ....................................................28
5.4 Feeder function ...........................................................29
5.5 Circuit-breaker with driving mechanism AV3 function
6 Safety elements ....................................................... 39
6.1 Acoustic earthing prevention alarm ............................................39
6.2 Interlocks ................................................................39
7 Maintenance .......................................................... 42
7.1 Voltage presence indicator test ...............................................42
7.2 Acoustic earthing prevention alarm test.........................................43
8 Spares and accessories................................................. 44
9 Environmental Information .............................................. 45

General Instructions
General description
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4
1 General description
The Ormazabal cgmcosmos system with external test
cable device is designed according to the requirements
indicated by the regulations of the International
Electrotechnical Commission (IEC), it is composed of
various models of single and multi-functional switchgear,
fully insulated in SF6gas, to configure different diagrams
of secondary electrical distribution in medium voltage to
24 kV[2].
1.1 Models
Single-functional switchgear
and control gear Function
cgmcosmos-l Feeder
cgmcosmos-v Vacuum circuit-breaker
Multi-functional switchgear
and control gear Functions
cgmcosmos-2lv Two feeder functions and one vacuum cutting circuit-breaker function
1.2 Applicable standards
Standard Description
IEC 62271-1 Common specifications for high-voltage switchgear and controlgear standards
IEC 62271-100
SANS 62271-100 High voltage alternating current circuit-breakers.
IEC 62271-102
SANS 62271-102 Alternating current disconnectors and earthing switches
IEC 62271-103
SANS 62271-103 High voltage switches for rated voltages above 1 kV up to and including 52 kV
IEC 62271-202
SANS 62271-202 High/low voltage prefabricated transformer substations
IEC 62271-200
SANS 62271-200
A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and
including 52 kV
SANS 1874/ NRS 006 Switchgear-metal-enclosed ring main units for rated AC voltages above 1 kV and up to and
including 36 kV
IEC 61243-5 /62271-206
SANS 61243-5 Voltage presence indicating systems
IEC 60529
SANS 60529 Degrees of protection provided by enclosures (IP Code)
[2]
[2] More information in www.ormazabal.com

General description
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
5
1.3 Main components
1Gas tank
1.1 Female bushings (spigots) for side connection
2Driving mechanism area
2.1 Name plate
2.2 Operating sequence plate
2.3 Actuation shafts (see mimic plan for each model).
2.4 ekor.vpis / ekor.ivds voltage presence indicator
2.5 The ekor.sas acoustic earthing prevention alarm unit is optional.
2.6 Integrated control unit and/or protection (optional)
3Base
3.1 Cable compartment access cover
3.2 Cable test compartment access cover
3.3 Medium voltage cable fixing support
3.4 Gas relief compartment
3.5 Earth collector
3.6 Front cable connection bushings
3.7 Gas pressure relief duct (optional for compact switchgear and control gear)
1
1.1
2
3
3.4
3.5
2.2
2.5
2.3
2.6
2.4
2.1
3.2
3.1
3.6
3.3
3.7
Fig. 1.1 Main components of cgmcosmos cubicles
1.3.1 Gas tank
Sealed compartment which houses the busbar and the
switching and breaking elements, where the insulating
medium is SF6.
Each gas tank has a pressure-releasing 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.
Fig. 1.2 Tank of gas SF6for function “l”

General Instructions
General description
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
6
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
actuators.
The cgmcosmos system has, depending on the cubicle
model, the following types of driving mechanism:
BTilting l, 2lv
BM Motorised tilting l, 2lv
AV3
Three-position circuit-breaker: in a
single operation it acts on the circuit
breaker and the disconnector.
v, 2lv
AMV3 Motorised three-position circuit-breaker v, 2lv
These elements are operated independently, i.e., their
actuation speed does not depend on the speed of the
manual operation.
Driving mechanisms B and BM can be replaced (due to
improved characteristics) in any of their three positions
(connected - disconnected - earthed). While the driving
mechanism is removed, these switch positions can be
blocked by a coupling device whether the function is in
service or not.
1.3.3 Base
Made up of the cable test compartment, the cable
compartment and the gas relief compartment:
Cable test compartment
This is located in the top front section of the base and
has a cover interlocked with the earthing switch, thus
allowing front access to the three medium voltage cable
test connection pistons.
Fig. 1.3 Cable test compartment

General description
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
7
Cable compartment
This is located in the lower front section of the cubicle,
thus allowing front access to the medium voltage cables.
As standard, it is designed to contain up to:
• 2 shielded screw-in terminals (small version)
per phase or one terminal (small version) plus a
surge arrester (small version) with space for the
corresponding incoming power cables.
• Cable clamps for the medium-voltage cables
• Earthing bars
Fig. 1.4 Cable compartment
Gas relief compartment
This is located in the lower rear section of the base. In
the event of an internal arc, the gases produced are sent
downwards and to the rear, in functions without IAC rating,
and in no way affecting any persons, cables, or the rest of
the installation switchgear.
Optionally, a chimney can be tted to the
back of the cubicle through which the gases
are redirected. Consult Ormazabal.
1.3.4 Name plate
Fig. 1.5 Example of name plate
.No Cubicle serial number*
Type Ormazabal cubicle system.
Designation Cubicle model
Standard Regulations applied to the equipment
Name Equipment name
UrEquipment rated voltage (kV)
UpLightning impulse withstand voltage (kV)
Unit Power frequency withstand voltage (kV)
* In the event of incident, the serial number should be quoted to Ormazabal

General Instructions
General description
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
8
frEquipment rated frequency (Hz)
IrEquipment rated current (A)
Manual of
instructions Manual of General Instructions (IG) corresponding to the system
Class Driving mechanism class according to IEC 62271-103
n Number of mainly active load breaking operations
Ik/ IpShort-time withstand current/Short-time withstand peak value
tkShort-time withstand current time
Pre Gas pressure inside the gas tank (MPa)
Pme Minimum operating gas pressure (MPa)
SF6Weight of insulating fluid (g)
Year Year of manufacture
TC Minimum service temperature
IAC Internal Arc Classification
1.4 Dimensions and weights
Fig. 1.6 cgmcosmos dimensions
Module Height (h)
[mm]
Width
(a)
[mm]
Depth
(f)
[mm]
Bushings
height
(g)
[mm]
Weight
[kg]
l 1450* 333 845 600 110
v (AV3) 1450 450 845 600 210
2lv 1450 1046 845 600 390
* For height 1740 mm ask Ormazabal
1.5 Operating conditions
Installation Indoors
Maximum ambient temperature + 40 ºC(a)
Minimum ambient temperature – 5 / - 30 ºC(b)
Maximum average ambient temperature, measured over a 24-hour period + 35 ºC
Maximum average relative humidity, measured over a 24-hour period < 95%
Maximum average vapour pressure, measured over a 24-hour period 22 mbar
Maximum average vapour pressure, measured over a 1-month period 18 mbar
Maximum height above sea level 2000 m(c)
Solar radiation Negligible
Contamination from corrosive and/or inflammable gases Insignificant
Vibrations caused by external factors to the switchgear and control gear Negligible
(a) For special operating conditions (maximum ambient temperature
greater than + 40ºC), please ask Ormazabal.
(b) Storage - 40ºC.
(c) For higher altitudes ask Ormazabal.
The specications refer to the section
'Normal service conditions for indoor
cubicles' in the IEC 62271-1 standard
'Common specications for high-voltage
cubicles'.

Handling and transport service 9
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
2 Handling and transport service
During transport, the switchgear and control
gear must be perfectly seated and xed
so that it cannot move about and possibly
damage the equipment.
2.1 Lifting methods
The switchgear and control gear must always be kept
upright, directly on the ground or on a pallet depending on
the type of handling involved.
To handle assemblies of up to four cgmcosmos functional
units, one of the following methods must be used:
1. Using forklift truck or pallet truck[3]:
Fig. 2.1 Lifting a cgmcosmos cubicle using a fork-lift truck
Fig. 2.2 Lifting a three functional unit assembly cgmcosmos
using a forklift truck.
2. Raising it using slings or chains fixed to the lifting
supports on the sides of the top of the cubicle. The
angle of pull should be as vertical as possible (with an
angle greater than 60º from the horizontal).
Fig. 2.3 Lifting a cgmcosmos cubicle with chains
Fig. 2.4 Lifting cgmcosmos cubicles with chains
3. If it is not possible to use the aforementioned methods,
rollers may be used underneath the switchgear and
control gear. Another option is to slide it over rods (these
same rods can be used to help get over the trench).
[3]
[3] Position the rear of the cubicle facing the driver, to avoid damaging the
front.

Handling and transport service
10
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4. To handle five functional unit assemblies
(consisting of either coupled modules or compact
assemblies associated with modules), use lifting
systems (slings, lifting beam, etc.) with a pull angle
greater than 65º and less than 115º in order to prevent
possible damage to the cubicles during hoisting.
Fig. 2.5 Lifting a five functional unit assembly cgmcosmos using
a lifting beam.
Fig. 2.6 Lifting a five functional unit assembly cgmcosmos using
chains.
The use of lifting beams is required for cubicle
assemblies with control boxes As the sole
exception, slings may be used if the cubicles
of the assembly have identical height control
boxes installed.

Storage 11
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
3 Storage
If it needs to be stored, the equipment must be placed on
dry ground or on top of damp-proof insulating material, still
in its original packaging.
After prolonged storage, clean all the insulating parts
carefully before commissioning the equipment. The
enclosure should be cleaned with a clean dry lint-free
cloth.
Figure 3.1 Detail of storage conditions
Storage should always be INDOORS, with the following
recommended conditions:
1. Ambient air temperature must not exceed 40°C and
its average value measured over a 24 h period must
not exceed 35°C.
2. Ambient air temperature must not drop below - 5 °C.
Cubicles with storage temperature up to - 40 ºC are
also available.
3. The switchgear must be protected from direct sunlight.
4. The altitude will be no higher than 1000 m.
5. The ambient air must not be significantly polluted
by dust, smoke, corrosive and/or flammable gases
vapours or salt.
6. The switchgear must be protected from rain and the
humidity conditions are as follows:
- Average relative humidity value, measured in a
24 hour period, must not exceed 95%.
- Average steam pressure value, measured in a
24 hour period, must not exceed 2.2 kPa.
- Average relative humidity value, measured in a
1-month period, must not exceed 90%.
- Average steam pressure value, measured in a
1-month period, must not exceed 1.8 kPa.
7. During transport, vibrations due to external causes or
seismic movements will be insignificant.
Any other conditions must be notied
beforehand, since the equipment must
be factory-adjusted to the atmospheric
pressure at the destination or during
transport. Otherwise, the manometer needle
may indicate an incorrect value, even if the
equipment's internal gas pressure is correct.

Installation
12
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4 Installation
4.1 Unpacking the equipment
The cgmcosmos system switchgear and control gear
comes wrapped in protective plastic.
On receiving the equipment, check that the goods supplied
correspond to the order and associated documentation. If
this is not the case please contact Ormazabal immediately.
The procedure for unpacking the equipment is as follows:
1. Using a blade, cutter or similar tool, cut the cellophane
wrapped around the cubicle[4].
2. Remove all the cellophane.
3. Detach the white polystyrene corner pieces.
4. Unscrew the fixings between the base and the pallet.
5. Remove the pallet, handling the cubicle as indicated
in section 2.1.
6. Unpack the accessory box located at the front or on
top of the cubicle.
7. Remove all the self-adhesive protective plastic from
the cable compartment cover.
8. Dispose of any waste in an environmentally-friendly
manner.
It is advisable to make a visual inspection of the equipment
to check whether it has suffered any damage in transit. If
so, contact Ormazabal immediately.
The self-adhesive plastic must be removed
from the cable compartment covers so that
the equipment enclosure’s earth connection
may have the proper electrical continuity.
4.2 Location of accessories during transport
A number of accessories are supplied with the cubicles,
located as indicated:
Fig. 4.1 Location of accessories in cgmcosmos modular
cubicles in transport
Fig. 4.2 Location of accessories in cgmcosmos compact
cubicles in transport
[4]
[4] It is advisable to cut the cellophane at the rear of the cubicle or at the
corner to avoid scratching the surface.

Installation 13
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
Depending on the cubicle model, the accessory box
contains some of the following items:
• Ormazabal's IG-257 General Instructions Document
• Actuating lever
• Spring-charging lever
• Cubicle connecting kit: ormalink
• Springs
• Syntheso grease
• Earthing bar
• End plug kit
• Cubicle end assembly
• Nylon thread
• Plastic plugs
• Side cover
• Floor fastening assembly
4.3 Minimum installation distances
The minimum distances to the walls and ceiling to be
maintained in the installation are as follows:
aSide wall 100
bCeiling 560
cFront clearance 500*
dRear wall >50**
(*) A minimum operation clearance of 1000 mm is recommended
** For functions v and 2lv. For function l d = 100 mm.
Fig. 4.3 Installation distances [mm]
The above-mentioned measurements
have been obtained in accordance with the
dimensions of the test compartment for gas-
insulated modules, according to annex AA of
standard IEC 62271-200.
The space required to extend the assembly with an
additional cubicle is 150 mm plus the width of the new
cubicle[5].
[4]
[5] If in doubt, please consult Ormazabal.

Installation
14
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4.4 Incoming cable pits recommended
Recommended minimum dimensions based on the
dimensions of the trench used in the tests according to
standard IEC 62271-200. Depending on the curvature
radius of the cables these dimensions may vary.
Feeder function
Fig. 4.4 Dimensions [mm] of cable trench for cgmcosmos-l
Trench needed for the feeder function [“L” or “T” terminal 400/630 A]
Cable data Guiding
radius of
curvature*
[mm]
Minimum depth
Cable
insulation Cable type Cable cross- section [mm2]
Cable
diameter
[mm2]
D2 D4
Dry insulation
Single phase
150 38 500 370 550
185 42 600 400 650
240 42
300 48
750
550 800
400 48
Three phase[6] 150 85 600 600
185 85
D2 for front (F) or rear (R) input.
D4 for side input.
* Each cable should be checked against the manufacturer's data.
Dimensions in mm.
[4]
[6] For other types of cable sections, please contact Ormazabal.

Installation 15
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
Circuit-breaker function
Fig. 4.5 Dimensions of cable trench for cgmcosmos-v
Trench needed for the circuit-breaker function [“L” or “T” terminal 400/630 A]
Cable data Guiding
radius of
curvature*
[mm]
Minimum depth
Cable
insulation Cable type Cable cross- section [mm2]
Cable
diameter
[mm2]
D2 D4
Dry insulation
Single phase
150 38 500 550 550
185 42 600 650 650
240 42
300 48
750
800 800
400 48
Three phase[7] 150 85 850 850
185 85
D2 for front (F) or rear (R) input.
D4 for side input.
* Each cable should be checked against the manufacturer's data.
Dimensions in mm.
For anti-vermin cubicles, the minimum value
of D2 will be the cable's curvature radius.
4.5 Fastening to the floor
Before assembling the cubicles, the floor must be carefully
levelled to prevent any deformation which may make
it difficult to connect it to the rest of the cubicles in the
assembly.
The cubicles can be fastened to the floor in two ways:
[4]
[7] For other types of cable sections, please contact Ormazabal.

Installation
16
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4.5.1 Floor fastening on a profile
If the floor of the installation is not sufficiently even, it is
advisable to install the medium voltage cubicle assembly
on an auxiliary profile, to make it easier to connect them.
This profile, which can be supplied to order, must be
anchored to the floor using expansion screws.
a M10 x 25 bolt
b 66 x 65 x 4 mm profile
c Anchoring support
Fig. 4.6 Location of cubicles on profile
4.5.2 Anchoring to the floor
If the floor of the installation is even enough, it is advisable
to install the medium voltage cubicle assembly directly
anchored to the floor.
The sequence for anchoring the cubicles to the floor is as
follows:
1. All the cubicle's functions must be in the earthing
position[8].
2. In the feeder functions:
2.1 Remove the cable test compartment cover, using
the central handle on the cover to pull it up and
forward:
Fig. 4.7 Removing the cable test compartment access cover
2.2 Remove the cable compartment cover, using the
central handle on the cover to pull it up and forward:
Fig. 4.8 Removing the cable compartment cover
3. In the circuit-breaker functions:
3.1 Remove the cable compartment cover, using the
central handle on the cover to pull it up and forward.
4. Anchor the first cubicle to the floor of the installation,
using screws at the points prepared on the base. This
will prevent vibrations or movements due to short-
circuits, possible flooding of the installation, etc.
[4]
[8] See section 5. Sequence of Operations

Installation 17
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
Take the following dimensions and figures into account.
Anchoring dimensions
Module b [mm] e [mm]
-l 325 -
-v 420 -
-2lv 293 420
Fig. 4.9 Points for anchoring to the floor cgmcosmos-l Fig. 4.10 Points for anchoring to the floor cgmcosmos-v
Fig. 4.11 Points for anchoring to the floor cgmcosmos-2lv

Installation
18
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4.6 Connecting the cubicles
The joining of cubicles must be carried out as indicated
in Ormazabal's Spares and Accessories Instructions
document RA-146, supplied with the materials kit used for
connecting cubicles.
4.7 Earthing the switchgear and control gear assembly
To connect the earth bus:
1. Screw the earth connection bar between each two
medium voltage cubicles, on their back, using two M8
x 20 hexagonal screws. Apply a torque of 15 Nm.
Fig. 4.12 Earthing the assembly
Tools: 13-mm spanner, torque wrench with
adapter for 13 mm.
Connect the end earthing bar, marked with the
symbol to the Installation's general earth connection.
Earthing the equipment is an essential
condition for safety.
4.8 Cable connections
The medium voltage incoming and outgoing feeders are
linked to the transformer or other cubicles via cables.
These cables and the corresponding bushings on the
cgmcosmos system cubicles can be connected with
simple (plug-in) or reinforced (screw-in) connecting points,
either IEC type or IEEE-386 compliant.
Never touch live connectors, not even
screened connectors. Screening does not
constitute a protection against direct contact.
When the installation is in service and a
reserve cubicle is left with voltage in the
upper busbar and without the cables in the
lower bushings, insulating plugs must be
placed in the bushings (EUROMOLD type)
or close the earthing switch and lock that
position with a padlock or lock.
The recommended terminations are described below.

Installation 19
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
Cable connections
Cable
type
Current
rating
[A]
Manufacturer Connector
12 kV 24 kV
Connector type Section
[mm2]Connector type Section
[mm2]
Dry cable
250
EUROMOLD(*) Shielded 158LR 16-150 K-158LR 16-150
152SR 16-120 K-152SR 25-120
3M Shielded 93-EE-8XX-2 25-95 93-EE-8XX-2 25-95
93-EE-8XX-2 25-95 93-EE-8XX-2 25-95
F&G Shielded ASW 10/250 25-120 ASW 20/250 25-120
KABELDON Shielded - - - -
KABEL-
DRAHT Shielded SEHDW11 25-150 SEHDW21 25-250
SEHDG11 25-150 SEHDW21 25-250
PFISTERER Shielded CAW 20/250 35-70 CAW 20/250 35-70
PIRELLI Shielded PMA-1-250/25 25-95 PMA-1-250/25 25-95
PMR-1-250/25 25-95 PMR-1-250/25 25-95
RAYCHEM Shielded RSES 16-120 RSES 16-120
RSSS 16-95 RSSS 16-95
400
3M Not shielded 93-EE-8XX-2 25-95 93-EE-8XX-2 25-95
EUROMOLD(*) Shielded 400LR 70-300 K-400LR 25-300
400TE 70-300 K-400TE 25-300
F&G
Shielded
AST 10/400 25-240 AST 20/400 25-240
ASW 10/400 25-240 ASW 20/400 25-240
ASTS 10/630 120-240 ASTS 20/630 25-240
Not shielded
AGL 10/630 120-240 - -
AGLS 10/630 120-240 - -
AWK 10/630 25-240 ASGS 10/630 25-240
AWKS 10/630 25-240 AWKS 20/630 25-240
KABELDON Not shielded KAP 300 10-300 - -
KABEL-
DRAHT
Shielded
SEHDW12 35-185 SEHDW22 25-250
SEHDT12 35-150 SEHDT22 35-150
SEHDW12 35-185 SEHDW22 25-250
Not shielded - 25-150 SEHDG23 185-240
PIRELLI Shielded
PMA-3-400/24
+ CPI 25-240 PMA3-CPI 25-240
PMA-2-400/24
+ CPI 25-95 PMA-2-400/24 + CPI 25-95
PMR-2-400/24
+ CPI 50-300 PMR-2-400/24 + CPI 50-300
RAYCHEM Not shielded UHGK+RICS 120-300 UHGK+RICS 95-240
IXSU+RICS 16-800 IXSU+RICS 16-800
* Connectors tested in cgmcosmos cubicles

Installation
20
General instructions
cgmcosmos system
Medium voltage switchgear and control gear, fully insulated in SF6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
Cable connections
Cable type
Current
rating
[A]
Manufacturer Connector
12 kV 24 kV
Connector type Section
[mm2]Connector type Section
[mm2]
Dry cable 630
EUROMOLD(*) Shielded
450SR 70-300 K450SR 35-300
400LB 25-300 K-400LB 25-300
400TB 35-300 K-400TB 35-300
Not shielded 15TS 35-630 UC412L 50-240
F&G Shielded AST 10/630 25-240 AST 20/630 25-240
KABEL-
DRAHT
Shielded SEHDT13 185-240 SEHDT23 185-240
Not shielded SEHDG12 35-185 SEHDG22 35-185
PFISTERER Shielded - - CAT 20/630 95-240
RAYCHEM Not shielded UHGK+RICS 120-300 UHGK+RICS 95-240
IXSU+RICS 16-800 IXSU+RICS 16-800
1250 EUROMOLD(*) Shielded 440TB 185-630 K440TB 185-630
Impregnated
cable
400
F&G Not shielded
- - AGM
20/400+GKV20 25-150
AWM
10/400+SKV10 25-240 AWM 20/400+GKV20 25-150
KABELDON Not shielded KAP 300 U 10-300 - -
PIRELLI Shielded
PMA-3-400/24
+ CPI 25-240 PMA3-CPI 25-240
PMA-2-400/24
+ CPI 25-95 PMA-2-400/24 + CPI 25-95
PMR-2-400/24
+ CPI 50-300 PMR-2-400/24 + CPI 50-300
RAYCHEM Not shielded UHGK+RICS 120-300 UHGK+RICS 95-240
IXSU+RICS 16-800 IXSU+RICS 16-800
630
EUROMOLD(*) Shielded K-400TB-MIND 25-240 K-400TB-MIND 25-240
RAYCHEM Not shielded UHGK+RICS 120-300 UHGK+RICS 95-240
IXSU+RICS 16-800 IXSU+RICS 16-800
* Connectors tested in cgmcosmos cubicles
For three-phase cables ask
Ormazabal.