CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site...
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Transcript of CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site...
![Page 1: CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site Commissioned in 1995. 22 Year Asset(s) – 290MVA, 420/15kV. Asset ... Calibrations Bus Voltages,](https://reader030.fdocuments.us/reader030/viewer/2022020114/5b7078f47f8b9aad128d7de0/html5/thumbnails/1.jpg)
Use of Online Monitoring and Data Optimisation Drives Condition Assessment on Service‐Aged Generator Step Up (GSU) Transformers
Ami Singh, Ian Thompson, John Twiddle; SSE – Engineering Centre Brent Duder‐Findlay, Dynamic Ratings
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CCGT Site – 735MW
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SLD – Site Commissioned in 1995
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22 Year Asset(s) – 290MVA, 420/15kV
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Asset History
![Page 6: CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site Commissioned in 1995. 22 Year Asset(s) – 290MVA, 420/15kV. Asset ... Calibrations Bus Voltages,](https://reader030.fdocuments.us/reader030/viewer/2022020114/5b7078f47f8b9aad128d7de0/html5/thumbnails/6.jpg)
Applying Loading Guide – Temperature Based Only
Loss of Life (Days)
HV LV
Tx 1 1.21 2.2Tx 2 1.14 1.77Tx 3 1.32 2.92
Based on 1 Year Data (Oct 2015‐Oct 2016)
For Asset Life – Lost of Life
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Average DP From Furans
![Page 8: CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site Commissioned in 1995. 22 Year Asset(s) – 290MVA, 420/15kV. Asset ... Calibrations Bus Voltages,](https://reader030.fdocuments.us/reader030/viewer/2022020114/5b7078f47f8b9aad128d7de0/html5/thumbnails/8.jpg)
CO2/CO Ratio
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Acidity of Oil
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O2/N2 Ratio
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BDV and Moisture in Oil
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Installation of Additional Monitoring
![Page 13: CCGT Site – 735MW - INSUCON 9.4 - Brent Duder.pdf · CCGT Site – 735MW. SLD –Site Commissioned in 1995. 22 Year Asset(s) – 290MVA, 420/15kV. Asset ... Calibrations Bus Voltages,](https://reader030.fdocuments.us/reader030/viewer/2022020114/5b7078f47f8b9aad128d7de0/html5/thumbnails/13.jpg)
Equipment Details
Processing Unit HV Bushing Monitoring PD Monitoring
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Equipment Details
LV Couplers Tap Changer Monitoring Multi Gas Analyser (9 gas unit)
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Equipment Details
Temperature Monitoring Additional Temperature Probes
Cooling System Monitoring
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Equipment Details
Calibrations Bus Voltages, Power etc. Commissioning
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Harvesting the
2014 – System Commissioned
2016 – Post Review
Digital/per Tx 56 275Analogue/ per Tx 42 527Total 294 2406
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Block System of Predictive Analytical Tool
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Traditional Monitoring vs Predictive Analytical Tool
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System in Action
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System in Action
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High Level Interface
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Maintenance History – Preventative or Corrective
1404 14171419
495 526279
0%10%20%30%40%50%60%70%80%90%
100%
CT1 CT2 ST
PM CM
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Conclusions
• The 3 GSU transformers have experienced significant ageing to date.
• Asset owner has taken/is taking proactive steps to slow the ageing process.
• A health index tool is providing transparency on asset integrity.