ABB - Indoor Substations

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ABB GroupNovember 13, 2009 | Slide 1

Indoor SubstationsSuministro Elctrico SustentableCongreso Bienal Internacional

Alfredo Gallegos, FES Manager, 10 y 11 de Noviembre 2009


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Agenda

Introduction

Utilities challenges and requirements

Example 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 levels

Summary


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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


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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


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Engineer problems facing an Indoor Substation

Transformer Noise

HV Over Head Lines Incoming

Easy Access to Power Transformers

Heat Dissipation


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Agenda

Introduction


Example of Indoor substations



Summary


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MALTE - up to 72.5 kVComplete pre-fabricated AIS substation


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Transformer foundation and

oil pit

Only one precast foundationfor the whole substation,function also as oil pit

Power Transformer put in

place


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Interior from HV-module

HV-cables connection toPower transformer.


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Summary

High availability (equipment indoor)

Small footprint

~100 m2 (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


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Agenda

Introduction


Example of Invisible substations



Summary


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HV Module LTB Compact


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URBAN up to 170 kVSite built indoor AIS substation

Before renewal

145 kV AIS

After renewal

145 kV AIS


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Portable maintenancestand mounted on CB truck

CB truck can easily beexchanged using a fork lift


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Medium Voltage switchgear Yellow reflective stripe on floor

for emergency evacuation,instead of battery lighting.

Better and more nature friendlysolution

Control Room

Back-up relay and controlequipment in same physicalhardware.


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Agenda

Introduction



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 levels

Summary


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HV Module - PASS


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Mechanism

Polymeric Bushings

Breaker

TC

Line / EarthDisconnector

HV Module - PASS


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Jockey Club

Shopping Iguatemi

Subestao Itaim

Indoor AIS 138kV Substation Eletropaulo/SP

138 kV Substation in Sao Paulo, Brazil.

3 x 40 MVA Transformers Available Footprint 35 x 35 mt2


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Subestaoexistente

readisponibilizada

BCAP6

TR1

111

105

101

INTERL

DER

BCAP5

TR3

104

107

FUTURO

112

BCAP4

TR3

FUTURO

110

100

FUTURO

DER

INTERL

106

TR2

BCAP3

108

BCAP2

TR2

FUTURO

109

103

FUTURO

DER

INTERL

102

TR1

BCAP1

CONJUNTO

BLINDADO

3

CONJUNTO

BLINDADO

2

CONJUNTO

BLINDADO

1

TR2

TR1

TR3

S A1 S A2

NA+101,8m

NA+101,8m

NA+102,5m

S.BATERIAS

BANCODEBATERIAS1-125V

MANUTENODODISJUNTOR

BANCODEBATERIAS

2-125V

NA+101,8m

1 2 3 4

A

B

C

D

E

ACESSOESCADA

PORTA

PORTA

PORTA

PORTAPORTA

PORTA

NA+102,5m

NA+102,3m

CX

BL BL

GRAMA

BL

CXBL

102.30(pisozero)

101.52

101.436 101.0681 01 .3 02 1 01 .1 91

101.52

S

rampasobe(i=14,5%)

101.80

PARALELEPIPEDO

PISODRENANTE - UTILIZARPARALELIPPEDOSDOEXISTENTE

102.25esuas variveis

101.80 101.80

100.862

100.814

101.20

101.127101.127

S

VARIAVEL

MURO -H=3,00m

MURO

-H=3,00m

102.25

mdia

102.30

102.30

102.2

5

102.30

102.2

5

101,8

0

102.30

Itaim Substation Layout


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Substation Layout


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Itaim Substation

Indoor AIS 138kV Substation Eletropaulo/SP


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Agenda

Introduction



MALTE - Complete pre-fabricated AIS substation up to 52.5 kV URBAN - Site built indoor AIS substation up to 170 kV Truly invisible GIS substations for all voltage levels

Summary


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Underground GIS substation

Barbana GIS Substation Underground GIS substation

Waterfall for hiding

transformer humming

Waterfall enrich visual and

audible perception of park Water also used for

transformer cooling via heatexchanger

Complete bay modules fromfactory for fast and easy work

at site

Environmental friendly

Personnel and third party safe


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People have their say

People were involved in the design of the surrounding park


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Barbana GIS Substationlayout and configuration


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GIS Substation

145 kV Substation in Rio de Janeiro - Leblon

3 x 40 MVA Transformers

Available Footprint 25 x 25 mt2


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Substation Leblon: Plant Layout


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Fotomontagem


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Substation : LIGHTDistribution Utility GIS SS Leblon


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Summary

Cost Comparison

Erection time

AIS/GIS solution around 1.5 to 2 years

Equipos/Montaje/Ing Obras Civiles Total CostConventional S/E 70% 30% 100%Indoor S/E 60% 40% 130%


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Main Benefits No visual Impact (Community)

Reduce Footprint

Potential surplus Land*

Reduced Outages Improve company image

Increase Reliability

Reduce Maintenance

Summary


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ABB Experience in Brazil

In operation

Energia Sao Jos - Manaus

Light - Light Leblon

Copel - Uvaranas

Electropaulo - Itaim

Petrobras - Repar

In Construction

Light - Light Copacabana

Copel - Capim Siqueira

Copel - Pilarzinho Copel - Jardim Bandeirantes


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ABB - Indoor Substations

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