THE APPLICATION OF GEOGRAPHIC INFORMATION

SYSTEM FOR THE DISSOLVED GAS ANALYSIS OF MEA’S

SUBSTATION TRANSFORMERS

Pechet Kunagonniyomrattana Kan Phruksavanasaka Wasawat Sukrung

Topics

•  MEA GIS •  DGA Solution •  DGA Ordinary Method •  DGA Web Application •  Conclusion

Base-Map - Ortho Photo - Surveying

MEA GIS Data

Base-Map - Ortho Photo - Surveying

Underground Structure -  Surveying -  Digitizing

MEA GIS Data

Base-Map - Ortho Photo - Surveying

Underground Structure -  Surveying -  Digitizing

Distribution System - Surveying

MEA GIS Data

Base-Map - Ortho Photo - Surveying

Underground Structure -  Surveying -  Digitizing

Communication - Digitizing

Distribution System - Surveying

MEA GIS Data

MEA Base-Map Map Classify Meter Pole + Conductor +

MEA GIS Data

•  DGA – Dissolved Gas Analysis is an effective means that becomes popular in the diagnosis of abnormality of power transformer without power off or load shedding

DGA Solution

DGA Solution

Reference :!http://www.netaworld.org/sites/default/files/public/neta-journals/NWwtr09_Hamrick.pdf!

DGA Solution

Reference :!http://www.netaworld.org/sites/default/files/public/neta-journals/NWwtr09_Hamrick.pdf!

DGA Ordinary Method

DGA Ordinary Method

•  PDF off-line file

DGA Ordinary Method

•  PDF off-line file •  No coordinate or location

DGA Ordinary Method

•  PDF off-line file •  No coordinate or location •  Difficult to search or update data

DGA Ordinary Method

•  PDF off-line file •  No coordinate or location •  Difficult to search or update data •  No reports

DGA Ordinary Method

DGA Web Application

Database Server •  MEA DB – Main MEA’s GIS Database

o  Land bases o  Landmark points o  MEA’s distribution equipment

DGA Web Application

Database Server •  MEA DB – Main MEA’s GIS Database

o  Land bases o  Landmark points o  MEA’s distribution equipment

•  Portal DB – web application database o  Substation transformer DGA test result

DGA Web Application

Web Map Server •  Web Map Service (WMS) – view only

o  Land base o  Landmark Point

DGA Web Application

Web Map Server •  Web Map Service (WMS) – view only

o  Land base o  Landmark Point

•  Web Feature Service (WFS) – view/editable o  Substation transformer’s DGA test result

DGA Web Application

•  DGA Condition Web Application •  DGA Input Data Web •  DGA Report Web

DGA Web Application

Web Overview

The overview of the service conditions of all the power transformers located on the Map !

Transformer Detail

Details of the latest DGA diagnosis of the transformer TX-3 !

Input Data Web

The web page for data entry

Report

The DGA Report Web by Transformer!

Report

The DGA Report Web by Condition , Manufacturer , etc.!

Conclusion •  Online web map application

Conclusion •  Online web map application •  With GPS coordinates

Conclusion •  Online web map application •  With GPS coordinates •  Data management

Conclusion •  Online web map application •  With GPS coordinates •  Data management •  Back up data policy

Conclusion •  Online web map application •  With GPS coordinates •  Data management •  Back up data policy •  Report for preventive maintenance planning

Q&A

wasawat.su@mea.or.th!

Thank You for Attention ขอบคุณครับ

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