modular substations

Prod

ucts

Vol

. 01

The modular substations - ---------------10The systems within - -----------------------------------14design, engineering and 3d -------------16load out and transPortation ------18technical data - ---------------------------------------------20

conTenTs

0504

01. EDG Emergency Diesel Generators Kashagan Project | Kazakhstan

Skema’S modular SubStationS can be used for a wide variety of applications including lv/Mv/hv packaged substa-tions, local equipMent rooMs, con-trol rooMs, generator power plant rooMs, personnel refuges and as general process or utility buildings. they are fully aSSembled and rigor-ously teSted within Skema facilitieS before being shipped to site, by land, sea or air, ready for rapid inStalla-tion and commiSSioning.

02. Local equipment room – Fabrication yard | Ravenna Italy

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03. Modular substations Karachaganak Project | Kazakhstan

04. Process utility buildings Fabrication yard | Atyrau Kazakhstan

05. Modular substation Hannibal Sour Gas Project | Tunisia

06. Local equipment rooms Fabrication yard | Ravenna Italy

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the modular SubStationS

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OnE OF THE MOST IMPORTAnT

AnD DISTIncTIvE FEATuRES OF

SKEMA’S MODuLAR SubSTATIOnS

IS THE OPPORTunITy THEy AFFORD

TO cREATE A unIquE AnD FuLLy

cuSTOMIZAbLE SOLuTIOn, In Ac-

cORDAncE wITH EAcH cLIEnT’S

InDIvIDuAL SPEcIFIcATIOnS, THE

EnvIROnMEnTAL REquIREMEnTS,

THE EnvIROnMEnTAL cOnDITIOnS

AnD THE PROjEcT-SPEcIFIc TRAnS-

PORT SPORT SIZE LIMITATIOnS.

Skema’s Modular Substations can

be designed with fire ratings as

per the client’s requirements, and

with the capacity to withstand both

seismic and blast events. They are

suitable for ambient temperatures of

between -40°c and +50°c, resist-

ant to harsh environmental condi-

tions and supplied with special paint

coating cycles that are appropri-

ate for each specific application.

Skema’s Modular Substations are

space-efficient, highly reliable and

fully integrated, and equipped with

the latest state-of-the-art technol-

ogy for Oil & Gas applications. They

are designed to work safely in harsh,

potentially explosive and chemically

contaminated environments, and are

intended for both onshore and off-

shore Oil & Gas / petrochemical plants.

A modular approach is key to creat-

ing large-scale structures, taking due

account of the transit constraints or

any potentially problematic conditions

(weight limits, road or railway transport,

presence of nearby structures, etc.).

turnkey SolutionS

During the project, Skema acts as an

EPc contractor, managing, co-ordinat-

ing and monitoring every aspect of the

project: detailed design, project man-

agement, scheduling, procurement

and expediting, qA/HSE manage-

ment, documentation, fabrication, all

multidisciplinary installation activities

(architectural, mechanical, E&I, HvAc,

etc.), and testing and pre-commis-

sioning at Skema’s fabrication yards.

In addition, Skema can transport

the equipment onto seagoing ves-

sels, and can also provide trans-

portation to site and full installation

and commissioning, as well as op-

erational support and maintenance

for the life cycle of the installation.

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07. HvAc and monitoring room Kashagan Project | Kazakhstan

08. Modular substations Kashagan Project | Kazakhstan

09. Modular substation Hannibal Sour Gas Project | Tunisia

10. Switchroom Kashagan Project | Kazakhstan

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11. Modular substation Kashagan Project | Kazakhstan

12. Modular substation Karachaganak Project | Kazakhstan

13. Fabrication yard Atyrau Kazakhstan

14. Fabrication yard Atyrau Kazakhstan

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the SyStemS within

SKEMA’S MODuLAR SubSTA-

TIOnS AFFORD THE OPPORTunITy

TO cREATE A cOMPLETE AnD FuL-

Ly cuSTOMIZAbLE SubSTATIOn

ALLOwInG FOR Any InTERnAL

cOnFIGuRATIOn OF THE SwITcH-

GEAR TO bE InSTALLED. SuITAbIL-

ITy FOR THE SPEcIFIc cOnDITIOnS

OF SERvIcE IS ALSO ASSuRED.

In order to support the primary inter-

nal equipment (Lv/Mv/Hv switchgear

or DcS) the following typical systems

are supplied:

Insulation for energy conservation, >

using non-combustible materials

with type-tested fire resistance

(fire-resistant up to 120 minutes)

Special painting cycles and inter- >

nal anti-skid floors

Heating ventilation and Air condi- >

tioning (HvAc) system engineered

to guarantee the ambient operat-

ing conditions

Pressurization system including air- >

filtering systems for contaminants

and toxic or corrosive substances

Gas, smoke, heat and fire detec- >

tion system, conventional or ad-

dressable, with monitoring panels

that can interface with DcS and

field control systems

Transformer bay or equipped >

rooms

Security, IT and Telecoms in- >

cluding PA/GA system to allow

personnel to monitor and control

normal activities

coating systems and corrosion pro- >

tection for rust prevention even in

extremely corrosive hot/humid en-

vironments subject to the presence

of dust, salt and corrosive gasses

Lighting and small power distri- >

bution system

Equipment rated for hazardous >

areas as per the AtEx 94/9/Ec

directive

Automatic fire-fighting systems: >

total flooding, clean agent, envi-

ronmentally friendly

Emergency Diesel Generators >

battery and uninterruptible Power >

Supply (uPS system)

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15. Switchroom Hannibal Sour Gas Project | Tunisia

16. PSA 1 “complex D” HvAc and monitoring room Kashagan Project | Kazakhstan

17. LSA “complex D” HvAc and monitoring room Kashagan Project | Kazakhstan

18. LSA IbEEv utility shelter “complex D” control room and HvAc room Kashagan Project | Kazakhstan

19. LSA IbEEv utility shelter “complex D” control room and HvAc room Kashagan Project | Kazakhstan

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deSign, engineering and 3d

SKEMA uTILIZES A cOMPREHEnSIvE

cOMPuTER-bASED DESIGn SyS-

TEM DEDIcATED TO cARRyInG OuT

EnGInEERInG cALcuLATIOnS RELAT-

InG TO STRucTuRES, LIFTInG AnD

LOADOuT.

The system makes it possible to con-

duct three-dimensional analysis of

building structures, space optimiza-

tion, clash avoidance and safety tol-

erances; to study static and dynamic

loads for lifting, transportation, blast

and seismic loads; to create innova-

tive designs and building components.

A complete 3D model of the building

can be created by Skema’s special-

ists during the engineering phase.

The model features all of the systems

and auxiliaries, and is used for the

following purposes:

To avoid clashes between every- >

thing that is to be installed with-

in the building

To optimize space and cable routing >

To determine the installation >

sequence for each system

To verify the required space for >

the installation and the removal of

major pieces of equipment

To verify expansion potential >

(free space for installation of fu-

ture equipment, or equipment in-

stalled by others)

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20. Process utility building

21. Lv and Mv modular substation

22. clashes investigation

23. Skidded drilling center

load out and tranSportation

THE KnOw-HOw IT HAS AcquIRED

OvER MAny yEARS OF AccuMu-

LATED ExPERIEncE, ASSEMbLInG

STRucTuRES OF DIFFEREnT DIMEn-

SIOnS AnD wEIGHTS, HAS ALLOwED

SKEMA TO DEvELOP SKILLS AnD Ex-

PERTISE In RELATIOn TO vARIOuS

TyPES OF LIFTInG, HAnDLInG AnD

TRAnSPORTATIOn OPERATIOnS.

Skema’s Engineering team is accus-

tomed to dealing with the problems

of international shipping, documenta-

tion and certificates, custom duties or

special requirements for each type of

transport such as:

Road transportation >

barge or ship >

Airfreight >

Rail transport. >

Skema can deal with SPMT han-

dling, lifting and transport opera-

tions under exceptional conditions,

as well as barge dressing and setting.

Skema can also provide the follow-

ing additional engineering services

for load out and transport: grillage

and sea-fastening calculations,

ballasting calculations, mooring

details, sea transport analysis and

load out manuals, offshore lifting

calculations, handling temporary

equipment, dimensioning and lift-

ing, checking of lugs/spreader bars,

general arrangements and details of

temporary structures for transport.

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24. Lifting operations of local equipment rooms Fabrication yard | Ravenna Italy

25. Air cargo transport of packaged substation Kashagan Project | Kazakhstan

26. barge transport of local equipment rooms Kashagan Project | Kazakhstan

27. Handling operations of local equipment rooms Fabrication yard | Ravenna Italy

1918

technical data

enVironmental conditionS

operating temperatures -40°c ÷ +50°c

relative humidity up to 95%

climate range Hot desert climate ÷ cold arctic climate

wind velocity up to 40 m/s (140 km/h, cyclonic wind)

Snow loads up to 1 meter of snow

Seismic loads (pga) Specific to site, up to 0.18 g

hazardous areas (atex) customizable also for installation in Zone 1

building conStruction

air tightness weatherproofing

<< 0.25 m3/h/m2 @ 50 PaOn request, continuously welded construction

ambient overpressure Adjustable up to 150 Pa

insulation u-value < 0.5 w/m2/K

ingress degree of protection for enclosures up to IP65

fire resistance (offshore) A, H, b constructions with up to 120 minutes’ fire resistance as per IMO SOLAS - Type-tested in compliance with FTP code

Structural fireproofing (offshore) jetfire j15

blast-resistance building design Low damage up to 2.5 bar peak overpressure (capability for lab testing of blast barriers)

rust and corrosion protection Zinc-rich painting cycle with 275 μm dry coatHot dip galvanizing - Tropicalization

winterization Heat tracing - Space heaters

noise and vibration-35 db acoustic insertion lossAnti-vibration mountings on rotating or vibrating parts for mitigation at source.

iaQ (indoor air Quality) Dust and particle filtration customized up to HEPA filtering classup to G1 air-purity class as per ISA s71.04

Sil class (Safety integrity level) Available SIL2 for safety equipment

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www.skemaq.it