Example of Indoor substations

Alfredo Gallegos, FES Manager, 10 y 11 de Noviembre 2009Indoor SubstationsSuministro Eléctrico SustentableCongreso Bienal Internacional© ABB GroupNovember 13, 2009 | Slide 1

AgendaIntroductionUtilities challenges and requirementsExample of Indoor substations• MALTE - Complete pre-fabricated AIS substation up to 72.5 kV• URBAN - Site built indoor AIS substation up to 170 kV• Truly invisible GIS substations for all voltage levelsSummary© ABB GroupNovember 13, 2009 | Slide 2

Reasons to migrate from Outdoor to Indoor Substation• Substations built years ago outskirt the city and today aresurrounded by residential and commercial areas• Consequences are:• Pressure to Minimize visual impact• Incidents of people entering the Substations• Important land cost• Increase pressure of availability© ABB GroupNovember 13, 2009 | Slide 3

Requirements on Substations from neighbors• Open air substation not so nice aesthetic,want power without seeing it• Originally outskirt of city, now surroundedby residential buildings, offices, shoppingcenters, hotels etc.• Acoustic problem from humming of powertransformers• Third party safety, especially childrenplaying• Station modularized and as much aspossible pre-manufactured• No substation fence and yard, buildingitself give the “shell” protection• Underground-in and underground-out, i.e.cable to first line tower in case of OH-linebays• Site work as little and short as possible,saves cost, shorten overall delivery timeand minimize disturbance to neighborsduring site activities© ABB GroupNovember 13, 2009 | Slide 4

Engineer problems facing an Indoor Substation• Transformer Noise• HV Over Head Lines Incoming• Easy Access to Power Transformers• Heat Dissipation© ABB GroupNovember 13, 2009 | Slide 5

AgendaIntroductionUtilities challenges and requirementsExample of Indoor substations• MALTE - Complete pre-fabricated AIS substation up to 72.5 kV• URBAN - Site built indoor AIS substation up to 170 kV• Truly invisible GIS substations for all voltage levelsSummary© ABB GroupNovember 13, 2009 | Slide 6

MALTE - up to 72.5 kVComplete pre-fabricated AIS substation© ABB GroupNovember 13, 2009 | Slide 7

MALTE - up to 72.5 kVComplete pre-fabricated AIS substation• Transformer foundation andoil pit• Only one precast foundationfor the whole substation,function also as oil pit• Power Transformer put inplace© ABB GroupNovember 13, 2009 | Slide 8

MALTE - up to 72.5 kVComplete pre-fabricated AIS substation• Interior from HV-module• HV-cables connection toPower transformer.© ABB GroupNovember 13, 2009 | Slide 9

MALTE - up to 72.5 kVComplete pre-fabricated AIS substationSummary• High availability (equipment indoor)• Small footprint• ~100 m 2 (1/3 of traditional)• Land preparation minimized, all equipment pre-fabricated• Short time at site (~2 weeks)• connection to network• commissioning• Low maintenance cost• Can easily be moved• Personnel and third party safe© ABB GroupNovember 13, 2009 | Slide 10

AgendaIntroductionUtilities challenges and requirementsExample of Invisible substations• MALTE - Complete pre-fabricated AIS substation up to 72.5 kV• URBAN - Site built indoor AIS substation up to 170 kV• Truly invisible GIS substations for all voltage levelsSummary© ABB GroupNovember 13, 2009 | Slide 11

HV Module – LTB Compact© ABB GroupNovember 13, 2009 | Slide 12

URBAN – up to 170 kVSite built indoor AIS substation• Before renewal• 145 kV AIS• After renewal• 145 kV AIS© ABB GroupNovember 13, 2009 | Slide 13

URBAN – up to 170 kVSite built indoor AIS substation© ABB GroupNovember 13, 2009 | Slide 14

URBAN – up to 170 kVSite built indoor AIS substation• Portable maintenancestand mounted on CB truck• CB truck can easily beexchanged using a fork lift© ABB GroupNovember 13, 2009 | Slide 15

URBAN – up to 170 kVSite built indoor AIS substation• Medium Voltage switchgear• Yellow reflective stripe on floorfor emergency evacuation,instead of battery lighting.• Better and more nature friendlysolution• Control Room• Back-up relay and controlequipment in same physicalhardware.© ABB GroupNovember 13, 2009 | Slide 16


HV Module - PASS© ABB GroupNovember 13, 2009 | Slide 18

HV Module - PASSPolymeric BushingsBreakerTCMechanismLine / EarthDisconnector© ABB GroupNovember 13, 2009 | Slide 19

Indoor AIS 138kV Substation – Eletropaulo/SP• 138 kV Substation in Sao Paulo, Brazil.• 3 x 40 MVA Transformers• Available Footprint 35 x 35 mt2Shopping IguatemiJockey ClubSubestação Itaim© ABB GroupNovember 13, 2009 | Slide 20

GRAMAPISO DRENANTE - UTILIZAR PARALELIPÍPEDOS DO EXISTENTEPARALELEPIPEDO101.80EDCBACX102.25 e suas variáveis101.80 101.80TR3TR2 TR1102.30NA+101,8mNA+101,8mNA+101,8mSA11 2 3 4101.52PORTA102.30 (piso zero)PORTASA2ACESSO ESCADA101.436 101.302 101.191101.068Srampa sobe (i=14,5%)médiaPORTA102.30101.52PORTA102.30VARIAVELBANCO DE BATERIAS 1 - 125VS. BATERIASBANCO DE BATERIAS 2 - 125VPORTANA+102,3mMANUTENÇÃO DO DISJUNTOR101.127NA+102,5mPORTASCONJUNTO BLINDADO 3 CONJUNTO BLINDADO 2 CONJUNTO BLINDADO 1101.20BLNA+102,5mTR1BCAP6101105111DERINTERLFUTURO107104BCAP5TR3TR3BCAP4100110FUTURODERINTERLFUTURO112106BCAP3TR2TR2BCAP2109103FUTURODERINTERLFUTURO108102BCAP1TR1101.127MURO - H=3,00 m100.862100.814Itaim Substation LayoutÁreadisponibilizadaMURO - H=3,00 m102.30CXSubestaçãoexistente101,80102.25102.25102.25BL BLBL© ABB GroupNovember 13, 2009 | Slide 21

Substation Layout© ABB GroupNovember 13, 2009 | Slide 22

Itaim Substation Layout© ABB GroupNovember 13, 2009 | Slide 23

Itaim Substation Layout© ABB GroupNovember 13, 2009 | Slide 24

Indoor AIS 138kV Substation – Eletropaulo/SPItaim Substation© ABB GroupNovember 13, 2009 | Slide 25


Underground GIS substation• Barbana GIS Substation• Underground GIS substation• Waterfall for “hiding”transformer humming• Waterfall enrich visual andaudible perception of park• Water also used fortransformer cooling via heatexchanger• Complete bay modules fromfactory for fast and easy workat site• Environmental friendly• Personnel and third party safe© ABB GroupNovember 13, 2009 | Slide 27

Underground GIS substation• People have their say• People were involved in the design of the surrounding park© ABB GroupNovember 13, 2009 | Slide 28

Underground GIS substation• Barbana GIS Substationlayout and configuration© ABB GroupNovember 13, 2009 | Slide 29

GIS Substation• 145 kV Substation in Rio de Janeiro - Leblon• 3 x 40 MVA Transformers• Available Footprint 25 x 25 mt2© ABB GroupNovember 13, 2009 | Slide 30

Substation Leblon: Plant Layout© ABB GroupNovember 13, 2009 | Slide 31



Substation Leblon: Plant LayoutFotomontagem© ABB GroupNovember 13, 2009 | Slide 34

Substation : LIGHTDistribution Utility GIS SS – Leblon© ABB GroupNovember 13, 2009 | Slide 35



Summary• Cost ComparisonEquipos/Montaje/Ing Obras Civiles Total CostConventional S/E 70% 30% 100%Indoor S/E 60% 40% 130%• Erection time• AIS/GIS solution around 1.5 to 2 years© ABB GroupNovember 13, 2009 | Slide 38

Summary• Main Benefits• No visual Impact (Community)• Reduce Footprint• Potential surplus Land*• Reduced Outages• Improve company image• Increase Reliability• Reduce Maintenance© ABB GroupNovember 13, 2009 | Slide 39

ABB Experience in Brazil• In operation• Energia Sao José - Manaus• Light - Light Leblon• Copel - Uvaranas• Electropaulo - Itaim• Petrobras - Repar• In Construction• Light - Light Copacabana• Copel - Capim Siqueira• Copel - Pilarzinho• Copel - Jardim Bandeirantes© ABB GroupNovember 13, 2009 | Slide 40

© ABB GroupNovember 13, 2009 | Slide 41

Example of Indoor substations

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