Ormazabal velatia cpg.0 Instruction manual

LIB
cpg.0
GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
General instructions
IG-123-EN, version 10, 19/06/2019

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 notice. These characteristics, as well as the availability of components, are subject to confirmation by
Ormazabal.
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 Standard
IEC 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 warranty, 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 the “Regulation on technical conditions and guarantees for safety in high-voltage electrical installations” – Royal Decree
337/2014 is obligatory.

IG-123-EN version 10; 19/06/2019 3
General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
Contents
Contents
1. General description ...................................................4
1.1. Models ......................................4
1.2. Standards applied............................4
1.3. Main components ...........................5
2. Technical characteristics..........................................12
2.1. Electrical characteristics .....................12
2.1.1. Name plate .................................14
2.2. Mechanical characteristics ..................15
2.2.1. Dimensions.................................15
2.3. IP rating ....................................16
3. Normal service conditions(a) ....................................17
4. Handling and transport...........................................18
4.1. Transport conditions ........................18
4.2. Lifting means ...............................18
5. Storage......................................................................20
6. Installation ...............................................................21
6.1. Unpacking the equipment ..................21
6.2. List of assembly materials supplied ..........21
6.3. Minimum installation distances..............22
6.4. Cable trench ................................22
6.4.1. Recommended dimensions .................23
6.5. Fastening to the floor .......................23
6.6. Connecting cubicles ........................24
6.6.1. cpg.0-v 24 kV 630 A .........................25
6.6.2. cpg.0-v 1250 A y 1600 A/cpg.0-pt/cpg.0-vl...25
6.6.3. cpg.0-v 2500 A ..............................26
6.6.4. cpg.0-c......................................26
6.6.5. cpg.0-s ......................................27
6.6.6. cpg.0-f/cpg.0-fl..............................27
6.6.7. cpg.0-rb.....................................28
6.7. Equipment earthing ........................29
6.7.1. Top section .................................29
6.7.2. Bottom section .............................30
6.7.3. Side area ...................................30
7. Operations sequence...............................................32
7.1. Operation and commissioning
sequence ...................................32
7.1.1. Disconnector function operating
sequence (cpg.0-s)..........................32
7.1.2. Circuit-breaker function operation
sequence (cpg.0-v/cpg.0-vl).................38
7.1.3. Busbar coupling function operation
sequence (cpg.0-c)..........................45
7.1.4. Busbar rise cubicle (cpg.0-rb)................50
7.1.5. Busbar earthing function operating
sequence (cpg.0-pt).........................50
7.1.6. Operating sequence in fuse protection
function (cpg.0-f/cpg.0-fl)...................53
8. Safety elements........................................................63
8.1. ekor.ivds voltage detectors .................63
8.2. Locking with a padlock......................63
8.2.1. Locking with lock ...........................63
8.3. Interlocks ...................................64
9. Maintenance.............................................................65
9.1. Voltage indicator test .......................65
9.2. Preventive maintenance circuit-breakers.....65
10. Spares and accessories ............................................66
11. Environmental information ....................................67
11.1. Sulphur hexafluoride SF6....................67
11.2. Recyclability ................................67

IG-123-EN version 10; 19/06/2019
4
General description General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
1. General description
The cpg.0 switchgear is made up of a series of GIS-type
cubicles, with complete insulation in gas, for primary
distribution in medium-voltage networks up to 40.5 kV.
1.1. Models
Model Function
cpg.0-v Circuit breaker
cpg.0-vl Circuit breaker with side connection on the left
cpg.0-c Longitudinal busbar coupling
cpg.0-s Disconnector
cpg.0-f Fuse protection
cpg.0-fl Fuse protection with side connection on the right
cpg.0-rb Busbar rise
cpg.0-pt Busbar earthing
cpg.0-rc Cables side rise
Table 1.1. cpg.0 switchgear models
1.2. Standards applied
Standard Description
IEC 62271-1 Common specifications for high voltage switchgear standards
IEC 62271-200 A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
IEC 62271-100 Alternating current circuit breakers
IEC 62271-103 High voltage switches for rated voltages above 1 kV up to and including 52 kV
IEC 62271-102 Alternating current disconnectors and earthing switches
IEC 62271-105 A.C. fuse combination switch for rated voltages above 1 kV and up to and including 52 kV
IEC 62271-206/IEC 61243-5 Voltage presence indicating systems
IEC 60529 Degrees of protection provided by enclosures (IP Code)
IEC 60282-1 Current-limiting fuses
Table 1.2. Standards applied

IG-123-EN version 10; 19/06/2019 5
General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
General description
1.3. Main components
1Busbar compartment
2Gas tank
3Gas pressure relief duct
4Cable compartment
5Control compartment
6Driving mechanism compartment
Figure 1.1. Main components of cubicles cpg.0

IG-123-EN version 10; 19/06/2019
6
General description General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
Gas tank
This is a sealed compartment, made of stainless steel and
sealed for life, which houses the switching and breaking
switchgear, with gas as insulating medium.
Depending on the function for which the cubicle was
designed, it may contain the following components:
• Disconnector.
• Earthing switch.
• Internal busbar and connections.
• Vacuum circuit-breaker.
• Switch - disconnector.
• Fuse holders.
Connection to the busbar is possible via upper bushings.
Connection to the medium voltage cables is made with the
lower and/or side bushings.
The gas pressure is tested, in each cubicle visually by means
of a pressure switch with a volt-free contact, allowing it to
be used as a remote alarm or blocking/trip for the position.
Figure 1.2. Example of bushing position in gas tank (1)
Busbar compartment
The busbar compartment, designed to withstand an
internal arc inside (optional), meeting the criteria of Annex A
of Standard IEC 62271-200, class IAC: AFL/AFLR, is located
at the top of the cubicle, separate from the gas tank. It is
made from metal sheet, offering the degree of protection
necessary for the connection device.
It comprises a fully assembled, tested unit, separated
by phases (segregating them as an option), by way of
earthed metal plates, with solid, screened insulation,
earthed through an earth collector plate specific to the
compartment.
Toroidal current transformers and/or plug-in voltage
transformers can also be installed, thus avoiding the need
for metering cubicles.
Figure 1.3. Phase segregation in the busbar (optional)

IG-123-EN version 10; 19/06/2019 7
General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
General description
Cable compartment
[2] There are four or six in the case of cubicles with rated branch current of 2500 A.
Located in the bottom part of the cubicle, this has a cover,
interlocked with the earthing circuit, which allows front
access to the medium voltage cables. This compartment
is prepared to withstand an internal arc in terminals up to
31.5 kA - 1 s, meeting the criteria of Annex A of Standard
IEC 62271-200, class IAC: AFL/AFLR.
In the most complete case, the base can house the following
components:
• Phase segregation assembly (optional) consisting of the
main box and the segregating cover.
• Three[2] symmetrical shielded terminals with reinforced
connection (screwable) by phase or four asymmetric
ones.
• Clamp flanges for the medium voltage cables.
• Earthing bars.
• Toroidal current transformers.
• Voltage transformers, with connection via medium
voltage cable or plug-in/disconnectable.
All the elements making up the enclosure are earthed
by means of a conductor consisting of a copper plate,
sized to withstand the rated short-time current. This is
located in the base, meaning it does not need to be
dismantled in order to insert or remove a cable and its
corresponding termination.
Figure 1.4. Detail of the main box and the segregating cover

IG-123-EN version 10; 19/06/2019
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General description General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
Fuse compartment
[3] There are four or six in the case of cubicles with rated branch current of 2500 A.
The fuse protection cubicle cpg.0-f, has separate fuse
holders to house medium voltage limiter fuses.
The compartments are pipe-shaped and are fully enclosed
in the gas tank, making them unaffected by pollution. To
remove and insert the fuses in the fuse holder, a carriage
is used to simplify the operation and ensure correct fuse
placement.
The pipe seal consists of an elastic membrane with the
following functions:
• To ensure the water-tightness of the fuse holder
against flooding and thus avoid interior pollution and
degradation.
• Additional insulation to that provided by the fuse holder
carriage insulator.
• To transmit the movement of the fuse striker to the
tripping mechanism, while maintaining the water-
tightness of the fuse holder tube.
By the very nature of its construction, this sealed solution
is subject to the internal overpressure caused by abnormal
overheating of the internal air. In this case, the trip device
can act as protection against overheating, thus preventing
damage to both the fuse and the fuse holder.
Figure 1.5. Fuses compartment detail
Exterior cable connections (bushing)
The cpg.0 cubicles have bushings on the front for medium-
voltage cable connection. These are made of epoxy resin
and can, thanks to their configuration, withstand the
current transformers. They are duly screened and designed
in line with Standard EN 50181, being of type “C”.
They allow the connection of conductors of up to 800 mm2
via screw-in T-type connectors of any manufacturer. The
cable compartment allows the installation of up to three
cables[3] per phase, with a symmetrical terminal, or up to
four cables per phase, with an asymmetric terminal.
Figure 1.6. Cable compartment

IG-123-EN version 10; 19/06/2019 9
General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
General description
The cpg.0-vl and cpg.0-fl models have side bushings for
connection of up to two medium voltage cables per phase,
up to 800 mm2. These side bushings do not allow it to
withstand current transformers.
Figure 1.7. Side bushings in cpg.0-vl for connection of medium voltage
cables
Figure 1.8. Side bushings in cpg.0-fl for connection of medium voltage
cables
Model cpg.0-rc (cable side rise) protects the cable side
connection of models cpg.0-vl (cpg.0-rci, left cable rise) and
cpg.0-fl (cpg.0-rcd, right cable rise).
Figure 1.9. Left side cable rise cubicle (cpg.0-rci) for cubicle cpg.0-vl
Figure 1.10. Right side cable rise cubicle (cpg.0-rcd) for cubicle cpg.0-fl

IG-123-EN version 10; 19/06/2019
10
General description General instructions
cpg.0: GIS-type medium-voltage switchgear
with full insulation in gas, up to 40.5 kV,
in accordance with IEC Standards
Gas pressure relief duct (optional)
[4] In accordance with model; see the unit's Name Plate.
The entire cubicle is prepared to withstand an internal arc
in the gas tank up to 31.5 kA - 1 s[4], meeting the criteria of
Annex AA of Standard IEC 62271-200, accessibility class IAC:
AFLR.
1Gas pressure relief diaphragm
2Gas vent from cable compartment
Figure 1.11. Pressure relief diaphragm and gas vent detail
A duct made of metal sheet, which conducts the gases
produced by an internal arc towards the top of the cubicle,
from any of the three compartments: gas tank, cable
compartment and busbar compartment.
Figure 1.12. Gas pressure relief duct detail (1)
Control compartment
Placed at the top of the cubicle and separate from the
medium-voltage area, this is ready for installation of the
measuring equipment and protection relays. It contains
the terminal block with the control signals duly identified
in accordance with the wiring diagram provided with
the equipment. All the connections between the driving
mechanisms compartment and the control box are made
via connectors, which makes the assembly more flexible,
and allows the control box to be assembled and connected
on site in a straightforward, direct way.
Figure 1.13. Control compartment detail