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Schedule day 1

Tuesday 14th of May 2019

8:00 – Arrival and registration
8:30 – Welcome
8:45 – Introduction

  • Engie Lab Laborelec: Oil activities
9:00 – TECHNICAL SESSION 1
  • Some basics on transformer and its insulating materials
  • Ageing and failure of a power transformer and its insulating materials
  • Importance of selecting good quality transformer oil
  • Inhibited versus uninhibited oils 
  • Question & answer
10:30 –  Coffe break
10:45 – TECHNICAL SESSION 2
  • Dissolved Gases Analysis (DGA) – Basic tool for transformer condition assessment (1) Some basics
  • How to implement and interpret analysis results (4 levels) 
  • Type of internal faults
  • IEC/IEEE Standards
  • Question & answer
12:15 – Lunch
13:15 TECHNICAL SESSION 3
  • Dissolved Gases Analysis (DGA) – Basic tool for transformer condition assessment (2) Relationship with water and breakdown voltage
  • Case studies
  • Question & answer
14:45 – Coffe break
15:00 – TECHNICAL SESSION 4
  • Dissolved Gases Analysis (DGA) – Basic tool for transformer condition assessment (3) Offline versus online DGA monitoring
  • Stray gassing: what is it, how to identify and which actions can be taken
  • Case studies
  • Question & answer
17:00 – Closing day 1 

Schedule day 2

Wednesday 15th of May 2019

8:00 – Arrival and registration
8:30 – TECHNICAL SESSION 5

  • Focus on oil ageing and oil quality monitoring (1)
  • Which analyses to perform
  • Standards
  • Typical values
  • Question & answer
10:30 – Coffe break
10:45 – TECHNICAL SESSION 6
  • Focus on oil ageing and oil quality monitoring (2)
  • Wich analyses to perform, standards & typical values reporting
  • PCB-analysis: context and recommendations
  • Question & answer
12:00 – Lunch
13:00 TECHNICAL SESSION 7
  • Focus on insulating paper ageing – best practices some basics
  • Influencing factors
  • Temperature-corrected furans
  • Importance of transformer dismantling(s)
  • Methanol as innovative paper ageing marker
  • Question & answer
14:45 – Coffe break / Tea break
15:00 – TECHNICAL SESSION 8
  • Focus on corrosive sulphur – best practices
  • Context and current status
  • Recommendations for unused oils in-service analysis methods & risks assessment
  • possible maintenance actions to reduce risk implemented actions within ENGIE-fleet
  • Question & answer
17:00 – Closing day 2