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T&D
PREFABRICATION
& DISTRIBUTION
A global solution
A worldwide experience
with 100,000 prefabricated
substations delivered
throughout the world.
We create tailor-made
solutions adapted
to your needs.
Selection guide
PREFABRICATED SUBSTATIONS
Because the methods, regulations,
and needs are different in each
country, we provide the solutions
which corespond with your applica-
tions and with your expectations,
whatever your sector of activity:
> Utilities,
> Buildings,
> Industry,
> Wind farms,
> Mining applications.
ADAPTABLE TECHNOLOGY
Our products are designed to
answer the most varied applications,
from the smallest to the largest
project solution:
> Switching units and compact
substations,

> Substations with corridor,
> Substations with modular
dimensions,
> Substations connected together
up to 210m
2
,
> Mobile or provisional power supply.
ADAPTABLE MATERIALS
Our 40 years of experience, has
proven our expertise in selection
of proper material dedicated to
the application.
> Reinforced concrete,
> GRC, special light concrete,
> Steel enclosure.
We create tailor-made solutions
adapted to your needs
2
G.R.C. (Glass Reinforced Cement)
Metal
Concrete
Tahiti Uruguay Nigeria Indonesia China
France Senegal Brazil
OUR ACTIVITY
DESIGN OF SUBSTATION
4
ADVANTAGES OF A PREFABRICATED SUBSTATION SOLUTION 6
OUR PROCESS 7
OUR RANGE 8

PUBLIC & INDUSTRIAL SUBSTATION
SECONDARY DISTRIBUTION SUBSTATION 10
PRIMARY DISTRIBUTION SUBSTATION 30
SPECIFIC APPLICATIONS
MINING APPLICATIONS 32
WIND FARM APPLICATIONS 33
RAILWAY APPLICATIONS 34
SWITCHGEAR & COMPONENTS
DIGITAL FAULT DETECTOR & REMOTE CONTROL 36
SECONDARY DISTRIBUTION SWITCHGEAR 38
DISTRIBUTION TRANSFORMERS 42
LOW VOLTAGE 44
LIGHTNING ARRESTERS & FUSES 46
OUTDOOR SWITCHGEAR 47
PRIMARY DISTRIBUTION SWITCHGEAR 48
Summary
3
A worldwide experience with 100,000 prefabricated
substations delivered throughout the world
Design of a substation
The definition of a substation
depends on a number of criteria
Design of a substation
4
TYPE OF OPERATION
> Walk-in version
> Outdoor version
Walk-in Outdoor version
Corridor for easier operation, enabling
protection of the operator from bad

weather, compact surface.
A bit more compact Outdoor operation
INTERNAL ARRANGEMENT
> Frontal
> Diagonal
> Longitudinal
With or without an internal partition
Frontal
Front door only to
simplify access.
Longitudinal
Narrow substation for
street pavements.
Diagonal
Easier to integrate.
Large equipment.
TYPE OF DECORATION:
> Wall with stone,
wood or other
> Roof.
Wood
Customized wood, brick or stone facade.
Customized 1 or 4 slopes, roof made in our factory or on site.
Wall & RoofStone
DESIGN OF
THE SUBSTATION
ENCLOSURE
> With plinth
> Without plinth
The plinth is made at the factory for

cost-effective and time-saving solutions.
Civil engineering work must be
carried out on-site.
5
CONFORMITY WITH
THE I.E.C. STANDARD
People and equipment safety
Retention tank, temperature rise test,
IP25D, mechanical withstand etc.
Choosing internal arc capability,
(Yes or No) is called (I.A.C.)
for public safety.
TYPE OF MATERIAL FOR
THE ENCLOSURE
> Concrete
> Light concrete (G.R.C.)
> Metal
Concrete
• For large substations
• Reinforced strength
• Excellent resistance to
thermal shocks and
corrosion
• Aesthetic design.
G.R.C.
• For compact substations
• Excellent resistance to
thermal shocks
and corrosion,
• Aesthetic design.

• Light-weight.
Metal
• For temporary work
• Light-weight,
• Poor appearance after
several years
• Corrosion &
condensation risks.
TYPE OF TRANSFORMER
> Oil immersed
> Dry
Oil immersed Dry
Hermetically sealed transformer,
for more compact dimensions of the
substation, with oil retention tank.
Cast resin transformer to reduce fire risk
for strategic locations.
TYPE OF MV CUBICLE
> Air insulated switchgear
> Gas-insulated switchgear
Air insulated Switchgear Gas-insulated Switchgear
Modular expandable design with SF6
switch in AIS cubicle
Complete GIS expandable design
TYPE OF LOW VOLTAGE
> Circuit breaker
> Fuses
> Disconnector
Circuit breaker Fuses
The circuit breaker solution is preferred for

facilitating operation and maintenance work.
Expensive, however.
Fuses mean better protection
of the installation,
Cost effective.
Advantages of a
prefabricated substation solution
Electrical network
6
QUICK DELIVERY
The industrialization of the
manufacture of our substations
allows fast and secure delivery of a
complete product ready to be
connected to the network.
EASY & QUICK
INSTALLATION
The concept of the prefabricated
substation allows delivery
on -site of a complete product pre-
connected and tested at the factory.
Only connection to the electrical
network remains to be carried out.
Simplified transport on a standard
truck or container.
RESPECTING STANDARDS
All of our substation equipment is in
conformity with the Standards. Our
stations have successfully passed
the I.E.C. tests and undergone the

test "of internal arcing" which
ensures the protection of both
operators and other people.
QUALITY
Our manufacturing process is in
conformity with the Quality standard
ISO 9001.
SECURITY/SAFETY
Guaranteeing the safety of
operators and of the public is
our main concern.
Our prefabricated solutions are fully
connected, factory tested and
undergo controls before delivery.
Our standard substation equipment
is approved and installed according
to a strict and industrialized process.
COST-EFFECTIVE
SOLUTION
In terms of manufacturing, delivery
and reduction of civil engineering
work on-site.
7
Our process
DESIGN
> Study of your needs
and selection of the most
appropriate substation,
MANUFACTURE
> Of the enclosures, cubicles,

transformers, fault detectors, etc.
INTEGRATION
> Of all of the medium voltage
and low voltage switchgear,
and carrying out routine tests.
DELIVERY
> Delivery of the substations
to the site.
HANDLING
> Transport and unloading of
the substations.
EXCAVATION
> Digging and preparation
of the sites.
READY FOR CONNECTION TO THE NETWORK
> Finishing and aesthetic
touches on site.
Our range
An appropriate solution
to meet your needs
Our range
8
Typical complete electrical network
Integrated
in buildings
With corridor Compact
without
corridor
Semi-
underground

Fully
underground
Mobile and
temporary
power supply
9
Substation range
SECONDARY DISTRIBUTION MV/LV SUBSTATIONS
S
WITCHING UNIT - PRESTO 10
TRANSFORMER KIOSK - ALTO A 11
COMPACT SUBSTATION
- ALTO L/F/D - (LIGHT C
ONCRETE) 12
COMPACT SUBSTATION
- ALTO MIX L/F/D - (METALLIC
) 14
WALK
-IN SUBSTATION - CLIPPER C - (LIGHT C
ONCRETE) 16
WALK
-IN SUBSTATION - MISTRAL - (HEAVY
CONCRETE) 18
UNDERGROUND SUBSTATION
- ICEBERG - (HEAVY CONCRETE
) 20
SUBSTATIONS FOR BUILDINGS
- TETRIS - (ON TANK
) 22
MOBILE SUBSTATION

- CLIPPER M - (METALLIC) 24
PRIMARY AND INDUSTRIAL DISTRIBUTION SUBSTATIONS
INDUSTRIAL SUBSTATION - CONCERTO - (HEAVY CONCRETE) 26
INDUSTRIAL SUBSTATION - CLIPPER S - (CONTAINER) 28
P
RIMARY MV/LV
SUBSTATION - CLIPPER SC - (CONTAINER) 30
SOLUTIONS FOR YOUR SPECIFIC APPLICATIONS
E
LECTRICAL SOLUTIONS FOR MINING APPLICATIONS 32
E
LECTRICAL SOLUTIONS FOR WIND FARM APPLICATIONS
33
ELECTRICAL SOLUTIONS FOR RAILWAYS APPLICATIONS 34
SWITCHING
RMU SUBSTATION
PRESTO RANGE
This range is dedicated to
switching substations.
This type integrates RMU up to
5 functions.
As an option, fault indicators can
be added with their external
lights, or the ITI/RCX Remote
control system.
Switching RMU kiosk - Presto
Light concrete
Secondary substations
10
PRESTO COMPACT

DESIGN
> Monobloc enclosure,
> Front door access,
> Removable hatch in aluminium for
easy cable operation,
> The roof is easily removable,
> Handling by forklift truck or slings.
ELECTRICAL CHARACTERISTICS
> 12/24kV compact SF
6
RMU
(36kV on option),
> Up to 3 functions,
> Remote control or
fault indicator facilities.
PRESTO IMAGE
DESIGN
> Monobloc enclosure,
> Front door access,
> The roof is easily removable,
> Handling by forklift truck or slings.
ELECTRICAL CHARACTERISTICS
> 12/24kV compact AIS RMU
(36kV on option),
> Up to 5 functions,
> Remote control or
fault indicator facilities.
M
M MM
1740

780
1380
1320
Weights in T
Presto F3: 2 T
Presto Image: 2T
1 - MV cubicles
2 - Remote control
21
2
1
Dimensions in millimetres
1320
1740
1380
780