alfredo gallegos, fes manager, 10 y 11 de noviembre 2009

© ABB Group November 13, 2009 | Slide 1

Indoor SubstationsSuministro Eléctrico SustentableCongreso Bienal Internacional

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


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


Reasons to migrate from Outdoor to Indoor Substation

Substations built years ago outskirt the city and today are

surrounded 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


Requirements on Substations from neighbors

Open air substation not so nice aesthetic,

want power without seeing it

Originally outskirt of city, now surrounded

by residential buildings, offices, shopping

centers, hotels etc.

Acoustic problem from humming of power

transformers

Third party safety, especially children

playing

Station modularized and as much as

possible pre-manufactured

No substation fence and yard, building

itself give the “shell” protection

Underground-in and underground-out, i.e.

cable to first line tower in case of OH-line

bays

Site work as little and short as possible,

saves cost, shorten overall delivery time

and minimize disturbance to neighbors

during site activities


Engineer problems facing an Indoor Substation

Transformer Noise

HV Over Head Lines Incoming

Easy Access to Power Transformers

Heat Dissipation


Agenda

Introduction


Example of Indoor substations




Summary


MALTE - up to 72.5 kVComplete pre-fabricated AIS substation



Transformer foundation and

oil pit

Only one precast foundation

for the whole substation,

function also as oil pit

Power Transformer put in

place



Interior from HV-module

HV-cables connection to

Power transformer.



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


Agenda

Introduction


Example of Invisible substations




Summary


HV Module – LTB Compact


URBAN – up to 170 kVSite built indoor AIS substation

Before renewal

145 kV AIS

After renewal

145 kV AIS



Portable maintenance

stand mounted on CB truck

CB truck can easily be

exchanged using a fork lift



Medium Voltage switchgear

Yellow reflective stripe on floor for emergency evacuation, instead of battery lighting.

Better and more nature friendly solution

Control Room

Back-up relay and control

equipment in same physical

hardware.


Agenda

Introduction






Summary


HV Module - PASS


Mechanism

Polymeric Bushings

Breaker

TC

Line / Earth

Disconnector

HV Module - PASS


Jockey Club

Shopping Iguatemi

Subestação 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


Subestação

existente

Área

disponibilizada

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

CO

NJU

NT

O B

LIN

DA

DO

3C

ON

JUN

TO

BL

IND

AD

O 2

CO

NJU

NT

O B

LIN

DA

DO

1

TR

2T

R1

TR

3

SA1 SA2

NA+101,8m

NA+101,8m

NA+102,5m

S.

BA

TE

RIA

S

BA

NC

O D

E B

AT

ER

IAS

1 - 1

25V

MA

NU

TE

NÇ

ÃO

DO

DIS

JU

NT

OR

BA

NC

O D

E B

AT

ER

IAS

2 - 1

25V

NA+101,8m

1 2 3 4

A

B

C

D

E

ACESSO ESCADA

PO

RT

A

PORTA

PO

RT

A

PORTAPORTA

PORTA

NA+102,5m

NA+102,3m

CX

BL BL

GRAMA

BL

CX

BL

102.30 (piso zero)

101.52

101.436 101.068101.302 101.191

101.52

S

ram

pa

so

be

(i=

14,5

%)

101.80

PARALELEPIPEDO

PISO DRENANTE - UTILIZAR PARALELIPÍPEDOS DO EXISTENTE

102.25 e suas variáveis

101.80 101.80

100.862

100.814

101.20

101.127101.127

S

VARIAVEL

MURO

- H=3,00 m

MU

RO

-

H=

3,0

0 m

102.25

méd

ia

102.30

102.30

102.25

102.30

102.25

101,80

102.30

Itaim Substation Layout


Substation Layout


Itaim Substation

Indoor AIS 138kV Substation – Eletropaulo/SP


Agenda

Introduction






Summary


Underground GIS substation

Barbana GIS Substation


Waterfall for “hiding”

transformer humming

Waterfall enrich visual and

audible perception of park

Water also used for

transformer cooling via heat

exchanger

Complete bay modules from

factory for fast and easy work

at site

Environmental friendly

Personnel and third party safe



People have their say

People were involved in the design of the surrounding park



Barbana GIS Substation

layout and configuration


GIS Substation

145 kV Substation in Rio de Janeiro - Leblon

3 x 40 MVA Transformers

Available Footprint 25 x 25 mt2


Substation Leblon: Plant Layout



Fotomontagem


Substation : LIGHTDistribution Utility GIS SS – Leblon


Summary

Cost Comparison

Erection time

AIS/GIS solution around 1.5 to 2 years

Equipos/Montaje/Ing Obras Civiles Total Cost

Conventional S/E 70% 30% 100%

Indoor S/E 60% 40% 130%


Main Benefits

No visual Impact (Community)

Reduce Footprint

Potential surplus Land*

Reduced Outages

Improve company image

Increase Reliability

Reduce Maintenance

Summary


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

alfredo gallegos, fes manager, 10 y 11 de noviembre 2009

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