IEEE Substations Committee GIS Subcommittee K2 Module Gas ...ewh.ieee.org/conf/tdc/D_08TD-GIS-Manufacturing-2008-04-15-Mark.pdf · Substations Committee GIS Subcommittee K2 Module

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IEEE/PES Substation Committee - GIS Subcommittee

T&D Chicago GIS


Substations CommitteeGIS Subcommittee K2

ModuleGas Insulated Substation (GIS)

BasicsDevelopment and Manufacturing

IEEE

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T&D Chicago GIS


ContentsGIS Basics

A Development and ManufacturingB Typical GIS LayoutC TestingD Installation and CommissioningE Operation and Maintenance

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ContentsGIS Basics

A Development and Manufacturing

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Development and ManufacturingSteps of development

Manufacturing processAssemblyQuality assurance

Production and design testsMechanicalGas tightnessElectrical

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Steps of DevelopmentMore than 40 Years of Experience

• 1995: First 420 kV circuit-breaker with only one interruptingchamber per pole

• 1976: Delivery of first 550 kV GIS

• 1974: Delivery of first 420 kV GIL Gas-Insulated Busbar (GIL)

• 1968: Delivery of first GIS

• 1960: Start of fundamental studies in research and development of SF6-technology

• 1979: Delivery of first 800 kV GIS

more than 60.000 bays in over 6.000 substations installed world-wide

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Steps of DevelopmentEvolution of GIS Design

550 kV in1983

420 kV in 2007230 kV in 1995

345 kV in 1970

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Huge reduction in size of equipment 245kV

B105

F35/B65

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Steps of DevelopmentProgress of GIS Development (145 kV)

0

10

20

30

40

50

60

70

80

90

100

110

68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98Year

[%]

Size of buildingSpace requirementShipping volume

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GISGIS

AISAIS

GIS vs. AIS

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National Grid-Ward Hill

Interrupting Current: 50 kA

Continuous Current: 3000 A

Max Rated Voltage: 362 kV

# of CB: 11

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Manufacturing ProcessGIS Factory

Production of maincomponents:

Insulating Parts/Vessels/DriveComponents

• Assembly(clean area)

• Test lab• Training center

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Manufacturing ProcessInsulating Parts: Cast Resin

Preparation of ElectrodesVacuum Casting

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Machining:Computer-controlledmachine center CMCfor GIS housings

Manufacturing ProcessPrefabrication – Housings/Components (1)

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Manufacturing ProcessGIS Hydro Static Factory Testing

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Painting• Inside and outside• Colour outside

acc. to customersspecification

Example:Aluminum-pressure vessel

Manufacturing ProcessPrefabrication – Painting

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Manufacturing ProcessPreassembly – Interrupter Units

PreassemblyExample:GIS-interrupter unit 420 kV

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Manufacturing ProcessPreassembly – Hydraulic Drive Unit

PreassemblyPreassembled and pretested components

Example:Hydraulic drive forGIS 420 kV

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Manufacturing ProcessAssembly – Main Assembly Hall

Main AssemblyCircuit-breaker and switchgearassembly“clean room“

Example:GIS Bays 245 kV

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ContentsGIS Basics

B Typical GIS Layout

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66 ’

13 ’

Typical GISRing Bus Arrangement, indoor

Typical Ring 4 Arrangement Single Phase Insulated138 kV, 40 kA, 3150 ASF6/Air Bushings

30 ’

40 ’

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Typical GISRing Bus Arrangement, outdoor

Typical Ring 4 Arrangement Three Phase Insulated138 kV, 40 kA, 3150 ASF6/Air Bushings

25 ’

42 ’

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Typical Ring 4 Arrangement Three Phase Insulated138 kV, 40 kA, 3150 ACable Connections

Typical GISCompact Ring Bus Arrangement

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ContentsGIS Basics

C Testing

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Design TestsHigh Voltage and Mechanical tests

Dielectric testing of a transportation unit

245 kV/50 kA, 4000 A

1998

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Design TestsTemperature Rise

High VoltageTemperature-riseTestingby applying current to theconductors• up to 6 kA • 1 and 3-phase• 16 2/3 Hz up to 60 Hz

Example:170 kV GIS

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Type TestingSeismic Test

Three axis seismic testingof a transportation unit

550 kV/63 kA, 4000 A

1992

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Design TestsLong Duration

Long-duration tests on post insulators withincreased voltagestress

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ContentsGIS Basics

D Installation and Commissioning

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Installation and CommissioningShipping and Transportation

Complete Bay foroperating voltage245 kV being unloadedat site

245 kV/40 kA, 4000 A

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Installation and CommissioningShipping and Transportation

Example:GIS Double-Bay Unit 170 kV as onetransportation unit

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Unloading at site and transport to the switchgear room

Installation and CommissioningUnloading

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Placing into the switchgear room with two simple lift trucks

Installation and CommissioningUnloading

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ContentsGIS Basics

E Operation and Maintenance

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OperationsDisconnect Switch Position Indicator (1)

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OperationsTypical View Port of 550 kV GIS

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OperationsView Port with Endoscope

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SF6 Density Monitor Example: Trafag

Arun

Dilo Type

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Thank you for your attention.Any Questions?

Documents

IEEE Substations Committee GIS Subcommittee K2 Module Gas ...ewh.ieee.org/conf/tdc/D_08TD-GIS-Manufacturing-2008-04-15-Mark.pdf · Substations Committee GIS Subcommittee K2 Module