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Objectives

• This training course will provide an understanding of transformer:
• Operational principles .
• Design guidelines and different types.
• Selection methodology.
• Maintenance and commissioning procedures.
• Troubleshooting checklists and failure analysis techniques.
• Testing procedures.
• Diagnostics and monitoring technologies.

The Delegates

• Operations & maintenance engineers, supervisors & technicians .
• Maintenance technicians .
• Lead Electrical Support Engineer .
• Electrical Superintendent-Testing & Protection , Support Engineer- Maintenance Operations – Superintendent-Power Station .
• Risk managers, utility engineers, consultants, researchers .

Contents

• Introduction and Course overview.
• Basic concepts of the transformers and maintenance strategies.
• Normative requirements .
• Gas formation mechanisms .
• Classification of the failure modes.
• Analysis of interpretive criteria .
• Interpretation criteria according to IEEE (TDCG, Doernerburg, Rogers) .
• Typical values ​​of concentration .
• Typical rates of increase .
• Characteristic ratios .
• Interpretation of gas from the Buchholz relay, switches, insulators, etc.
• Degradation of Kraft paper and gas formation .
• Factors of aging of the insulation system:
• Oxygen concentration .
• Concentration of carbon oxides id and temperature
• Planning of preventive maintenance
• Gas sampling methods .
• Analysis of dissolved gases (DGA) .
• Measurements in the laboratory and on-site .
• Failure analysis and troubleshooting .
• Extension of the operational life expectancy:
• Degassing
• Oil regeneration .
• Filtration and drying of the transformer .
• Continuous degassing transformer .
• Continuous On-Line Conditioning.
• The role of DGA interpretation in corrosion and oxidation mechanisms:
• Oil oxydation
• Oxidation paper
• Corrosive sulphur Reaction
• Training and migration of copper

Course summary .

The Discount

10% in case of Three P. (or more)