Substation Committee K2 TF1 of the GIS Subcommittee …sites.ieee.org/pes-resource-center/files/2014/02/PESGM2006P-000434.… · Substation Committee K2 TF1 of the GIS ... Gas Insulated

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IEEE/PES Substation Committee - GIS Subcommittee

GIS


IEEE

Substation Committee

K2 TF1 of the GIS Subcommittee

GIS/GIL/SF6-Tutorials

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GIS


IEEE

Gas Insulated Switchgear (GIS)

Design and Development

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GIS


Introduction to GISTypical Air Insulated Substation 345/230/115kV

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GIS


Introduction to GISTypical Gas Insulated Substation 345/115kV

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GIS


Introduction to GISCable Feeder Unit

Mechanism Housing

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GIS


Introduction to GISDimension ComparisonGIS Technology

SF6 used as the Insulating Media

Reduced Clearances- 345 kV AIS 4.6 m (15 feet)- 345 kV GIS 380 mm (15 inches)

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GIS


Introduction to GISView into Bus Bar: Conductor/Enclosure Dimension

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GIS


Introduction to GISClassic Single Phase Enclosure of GIS

CableConnection

DisconnectorCurrent TransformerCircuit Breaker

Busbar DisconnectorCurrent TransformerCircuit Breaker

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Introduction to GISMidway Sunset Sunoco Cogen 242 kV GIS

4

242 kV

2000 A

40 kA

No. of breakers

Rated voltage

Rated current

Rated short-circuit current

1988Supply year

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Introduction to GISAdvanced Three Phase GIS 72.5 to 145 kV

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Design Features

GIS technology: compact, low-life cycle cost andmodular for indoor and outdoor applications

Modular Design,Factory pre-assembled and tested units

Space requirement less than 20 % of comparable AIS

Safety (enclosed energized components)

Continous Monitoring of SF6 Densitity

Sealed for Operating Life > 50 years

Major inspection: not before 25 years 1)

1) Is influenced by the operation duties

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GIS


Design Features

GIS technology: compact, low-life cycle cost andmodular for indoor and outdoor applications

Corrosion-resistant

Low fault-probability / high availability

Protected against aggressive environmental conditions

Seismic resistant

Low EMF and susceptibility to EMC

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GIS


Design FeaturesSpace Savings

Space Reductionappr. 70 %

Previous

Afterwards

Retrofit of an existing AIS

Substation byCompact

Substation

145 kV/31,5 kA, 4000 A

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GIS


Design FeaturesModular Structure

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GIS


IEEE


History

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GIS


Steps of DevelopmentMore than 40 Years of Experience

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

• 1968 : Delivery of first GIS

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

• 1976 : Delivery of first 550 kV GIS

• 1979 : Delivery of first 800 kV GIS

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

more than 200.000 bay-years of operation

more than 20.000 bays in over 2.000 substations installed world-wide

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Steps of DevelopmentEvolution of GIS Design

550 kV from1983345 kV from 1970

230 kV from 1995

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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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IEEE


Manufacturing

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Manufacturing ProcessGIS Factory

Production of maincomponents:

Insulating Parts/Vessels/ Drive

Components

• Assembly(Clean area)

• Test Lab• Training Center

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Manufacturing ProcessInsulating Parts: Cast Resin

preparationof electrodes

vacuumcasting

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Manufacturing ProcessPrefabrication – Housings/Components (2)

TestingPressure and Gas Tightness

Routine Test with Helium

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Manufacturing ProcessGIS Hydro Static Factory Testing

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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 for

GIS 420 kV

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Manufacturing ProcessAssembly – Main Assembly Hall

Main Assemblycircuit-breakerand switchgear

assembly„clean room“

Example:• GIS Bays 245 kV

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GIS


Thank you for your attention!

Any Questions?

Documents

Substation Committee K2 TF1 of the GIS Subcommittee …sites.ieee.org/pes-resource-center/files/2014/02/PESGM2006P-000434.… · Substation Committee K2 TF1 of the GIS ... Gas Insulated