Compact Substations Using Hybrid Switchgear and Disconnecting Circuit Breakers

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Ruggero BordonRuggero BordonABB Power TechnologiesABB Power TechnologiesU. Op. ADDAU. Op. ADDA

ABB Innovative High Voltage Products ABB Innovative High Voltage Products and Substation Solutionsand Substation Solutions

PASSPASSThe SF6 Hybrid SwitchgearThe SF6 Hybrid Switchgear

COMPASSCOMPASSThe AIS Prefabricated BayThe AIS Prefabricated Bay

The Main ConceptsThe Main Concepts

ABB Technology DaysABB Technology DaysJohannesburg Johannesburg March 8March 8--9 , 20069 , 2006

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PASSPASSPPlug lug AAnd nd SSwitch witch SSystemystem

The SF6 Hybrid SwitchgearThe SF6 Hybrid SwitchgearRated Voltage from 66 kV to 245 kVRated Voltage from 66 kV to 245 kV

ABB PT U. Op. ADDA Innovative HV ProductsABB PT U. Op. ADDA Innovative HV ProductsABB PT U. Op. ADDA Innovative HV Products

COMPASSCOMPASSCOMCOMpactpact AAir insulated ir insulated SSub ub SStationtation

The AIS Prefabricated SwitchgearThe AIS Prefabricated SwitchgearRated Voltage from 110 kV to 170 kVRated Voltage from 110 kV to 170 kV

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References Modules > 2,000 PASS & > 1,200 COMPASS

More than 3,200 modules worldwide More than 3,200 modules worldwide ( 30 modules in RSA )( 30 modules in RSA )

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Why Hybrid Switchgears ?Why Hybrid Switchgears ?

Conventional

AIS Sub StationsEase installation, operation, maintenance

Simplicity of lay outs

But less reliability

Conventional

GIS Sub StationsHigh reliability and availability

Less maintenance

But higher investment costs

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The term Hybrid refers to a combination of both traditional air insulated switchgear (AIS) and newer SF6 metal-clad insulated switchgear (GIS) technologies.

The Hybrid switchgear is a self-containing switching module suitable for outdoor and indoor substations.

The Hybrid switchgear utilises existing proven gas insulated switching components but uses a conventional and very reliable AIS bus to connect the various Hybrid modules.

The Term of The Hybrid SwitchgearThe Term of The Hybrid SwitchgearThe Term of The Hybrid Switchgear

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ALL THE NECESSARY FUNCTIONS IN ONE MODULEHigh Degree Of Compaction

KEY FUNCTIONS SEALED TYPESF6 Technology

EASY & FAST INSTALLATIONBeing Fully Pre-Fabricated And Pre-Tested

The Main Concepts of The Hybrid SwitchgearThe Main Concepts of The Hybrid SwitchgearThe Main Concepts of The Hybrid Switchgear

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An example of Bay An example of Bay In In A A BoxBox

PASS M0 - Plug And Switch SystemPASS M0 PASS M0 -- PPlug lug AAnd nd SSwitch witch SSystemystem

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The PASS FamilyThe PASS Family

PASS M00 66PASS M00 66--100 kV100 kV PASS M0 66PASS M0 66--170 kV170 kVPASS M0S 245 kVPASS M0S 245 kV

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The PASS FamilyThe PASS Family

PASS M0S 245 kV SBB

PASS M0S 245 kVPASS M0S 245 kV

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Rated voltage (kV) 72.5 100

Rated frequency (Hz) 50/60 50/60

Rated current (A) up to 2000 A

Rated breaking current kA (3 sec.) 31.5 20

Rated peak withstand current (kA) 80 50

Rated PF withstand voltage (kV) 140 185

Rated BIL (kV) 325 450

Temperature - 30 C / + 40 C

PASSPASS M00M00 6666--100 kV Main Ratings100 kV Main Ratings

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PASSPASS M0 M0 6666--170 kV Main Ratings170 kV Main Ratings

Rated voltage kV 72.5 123 145 170

Rated frequency Hz 50/60

Rated current A up to 3150

Rated breaking current kA (3 sec.) 40

Rated making current kA 100/80

Rated BIL kV 325 (350) 550 650 750

Temperature - 55C / + 55 C

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PASSPASS M0SM0S 245 kV Main Ratings245 kV Main Ratings

245 kVto earth 360 kVacross isolating distances 415 kVto earth 850 kVacross isolating distances 950 kV

50 Hz3150 A

40 kA40 kA / 3 s

-25C

Rated Current

Short Time Circuit CurrentBreaking Current

Temperature

Rated Power Frequency Voltage

Basic Insulating Level (BIL)

Rated Voltage

Frequency

**

BIL reduced because the PASS MOS

is based on the PASS M0 technology

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PASS M0 SBB PASS M0 SBB Single Bus BarSingle Bus Bar

CURRENT MEASUREMENT(also on both sides of the module)

CIRCUIT BREAKER

COMBINED DISCONNECTORAND EARTHING SWITCH(also on both sides of the module)

VOLTAGE MEASUREMENT(option)

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Legend:circuit breaker CB current transformer CTvoltage transformer VT line Ldisconnector DS earthing switch ES

Conventional AIS

DS CB DS

CT VTES

LBB BB

PASS M0 SBB

LDS/ES CB CT

OptionallyExtra SF6 DS/ES housed in the same vessel

DS

ES

CT

L

Comparing The AIS bay vs. PASS M0 SBB bayComparing The AIS bay vs. PASS M0 SBB bay

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Combined Combined SF6 DSSF6 DS//ES On Both SidesES On Both Sides(Line isolation and earthing) (Line isolation and earthing) (bus coupler)(bus coupler)

DS/ES

CT CTCB

DS/ES

OptionalExtra SF6 DS/ES housed in the same vessel.

DS/ES suitable for direct Line isolation and earthing.

DS/ES

CT CTCB

DS/ES

DS/ES suitable for bus coupling/sectioning through the CB

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All The Live Components Are Arranged In One EnclosureAll The Live Components Are Arranged In One Enclosure

CB Driver

Bushinghollow type

Circuit Breaker

CT ring type

CombinedDisconnector/Earthing Switch

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Circuit Circuit breaker breaker -- (SF6 auto puffer type)(SF6 auto puffer type)

Simple, reliable and well proven ABB components.Simple, reliable and well proven ABB components.

SiR Bushings and Ring SiR Bushings and Ring CT with cast resin coreCT with cast resin core

TPO Mech. BLK 222TPO Mech. BLK 222Spring TypeSpring Type

SPO Mech. BLK 82SPO Mech. BLK 82Spring TypeSpring Type

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PASS PASS M0 SBBM0 SBB

Combined DS/Combined DS/ES ES (SF6 technology)(SF6 technology)

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Porthole per each combined DS/ESPorthole per each combined DS/ES

Visual Inspection always Visual Inspection always possiblepossible through:

-Portholes

-Red/Green flags on the drive

-Electrical signals from theLCC to the Remote controlpanel

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PASS M0 DBB PASS M0 DBB Double Bus BarDouble Bus Bar

CURRENTMEASUREMENT

CIRCUIT BREAKER

COMBINED DISCONNECTORAND EARTHING SWITCHES

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Legend:circuit breaker CB current transformer CTvoltage transformer VT line Ldisconnector DS earthing switch ES

Conventional AIS

DSCB DS

CTVTES

L

DS

BB2

BB1

L

PASS M0 DBB

DS/ES CB CT

BB1BB2

DS

ES

OptionallyExtra SF6 DS/ES housed in the same vessel

LCT

Comparing The AIS bay vs. PASS M0 DBB bayComparing The AIS bay vs. PASS M0 DBB bay

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PASS M0 PASS M0 IOS IOS -- In Out S/SIn Out S/S

Featuring:Featuring:-- Extra SF6 DS/ES on the Trafo sideExtra SF6 DS/ES on the Trafo side-- SF6 ES SF6 ES on on the In the In and and OutlineOutline

sidessides-- Capacitive Voltage SensorsCapacitive Voltage Sensors

Incoming Outgoing

To the Power Trafo

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PASS M0 DCB PASS M0 DCB -- Double Double Circuit Circuit BreakerBreaker

H configuration with two H configuration with two modules, modules, onlyonly......

One pole One pole and and the the simplified simplified singlesingle--lineline--diagramdiagram

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24- CT

DS

CB

ES

BLK222

CT

CBBLK222

ES

ES

DS

DS

CT

DS

CB

ES

BLK222

CT

CBBLK222

ES

ES

DS

DS

No. 2 modules No. 2 modules DCBDCB

No. 5 Bays !!!No. 5 Bays !!!

...H configuration with two modules PASS M0 DCB...H configuration with two modules PASS M0 DCB

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Why AIS Prefabricated Bays ?Why AIS Prefabricated Bays ?

Stand Alone CTsStand Alone CTsand CBs, both SF6and CBs, both SF6

Integrated CTsIntegrated CTsand CBs, both SF6and CBs, both SF6

Lowered 90 Profile of the Lowered 90 Profile of the Integrated CTs and CBsIntegrated CTs and CBs BreakerBreaker

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insertedinserted isolatedisolated

drawn downdrawn down removedremoved

Integration of Line And Earthing SwitchesIntegration of Line And Earthing Switches

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VisibleIsolating gap

DS draw-in / draw-outmechanism

Breaker mechanism

breaking chamber

Supporting Insulator

COMPASS - COMpact Air insulated SubstationCOMPASS COMPASS -- COMCOMpact pact AAir insulated ir insulated SSubstationubstation

SF6 Current

Transformers

Post Insulators for the

Incoming and

Outgoing lines

Options available:

-Earthing Switches

-Voltage Transformers

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28- Conventional Free-standing

SF6 Current Transformers


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LTBLTB COMPASS with the SF6 CTCOMPASS with the SF6 CT

LTB Chamber


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A: CB drive (BLK 82 or BLK 222)B: draw-in / draw-out motor

C: worm screwD: remote end of mother-screw, bolted to the fixed frame


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31- Line Isolator openedLine Isolator openedLine Isolator closedLine Isolator closed

Sliding Frame for the Visible Line IsolationSliding Frame for the Visible Line Isolation

Tracks forTracks forSide SlidingSide Sliding

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Contacts of the AIS DisconectorsContacts of the AIS Disconectors

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(Opposite to the CT side...)(Opposite to the CT side...)

EarthingEarthing switch can be either handswitch can be either hand-- or motoror motor--operatedoperated

(on the CT side)(on the CT side)

AIS Earthing SwitchesAIS Earthing Switches

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Surge Arrestors installed on COMPASS: same structure and civil wSurge Arrestors installed on COMPASS: same structure and civil worksorks

The Surge ArrestorsThe Surge Arrestors

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Conclusions: Conclusions: Why ABB Innovative HV Products ?Why ABB Innovative HV Products ?

Simplicity for tendering

Easy System procurement

Easy order management

Less risks for technical interfacing and compatibility

Your challenges Your challenges inin HV SubstationHV SubstationTendering and Procurement:Tendering and Procurement:

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Your challenges Your challenges inin HV SubstationHV SubstationEngineering, Erection and Commissioning:Engineering, Erection and Commissioning:

More bays on less space

Simpler layouts

Highly competitive system

Ease of erection and commissioning

Shorter installation time

Standardization & Modularization


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High substation availability

Planable maintenance and higher transparency

of installed equipment

Less Maintenance

Low operating costs

Your challenges Your challenges User inUser in HV substationHV substationOperation:Operation:


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a new technical and a new technical and economical economical

optimization of optimization of

SubSub--station conceptstation concept

is now possible !!is now possible !!

-50C

Therefore...Therefore...

Documents

Compact Substations Using Hybrid Switchgear and Disconnecting Circuit Breakers