substation design-substation installation

Dr. Asawin RajakromConstruction Department

asawin.raja@mea.or.th

Substation Design:Station Installation

Discussion Topics• Request for connection

• Planning

• Transportation

• Installation• Testing & Commissioning

2

Installation Planning Equipment Acceptance

Approve Approve

Installation Start

Installation of Equipment Power/Control CablingGrounding

Test/Commissioning

ResultsOK?

Substation Energization

ResultsOK?

ProjectStart

Project End

Work Flowchart

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Planning• Activities• Duration• Relation• Resources, e.g. man power, material, vehicle, lifting

facilities etc.• Concurrence to other related works, e.g. cable coming in

and going out substation, SCADA etc.

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5

Equipment acceptance

• Transportation

• Checking

• Storage

• Stocktaking

• Checklist of each activities

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Transportation

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Transportation

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Transportation

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Transportation

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Installation of Equipment

• Circuit breaker• Disconnecting and earthing switch• Instrument transformer• Lightning arrester• Gas insulated switchgear (GIS)• Power transformer• Capacitor• Cable and accessories• Station supply

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Installation of Equipment

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Test and commissioning• Insulation test• SF6 gas, insulating oil and vacuum test• Contact resistance• Operating sequences• Operational control• Interlock• Monitoring• Metering• Protection• Individual test• Combined test

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Test and commissioning

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Test and commissioning

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Test and commissioning

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Test and commissioning

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Test and commissioning

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Test and commissioning

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Energization/Operation

• Voltage Withstand and Phase Sequences

• Protection and Metering Confirmation

• Operation/Maintenance Tools

• Documentation

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Thank youasawin.raja@mea.or.th