IEEE CIGRE Liaison Report on SCA2 Transformers For IEEE Transformer Committee Meeting April 12-16, 2015, San Antonio TX Raj Ahuja

SC A2 Working Groups-Transformers WG A2-37 Transformer Reliability Survey - S. Tenbohlen (DE) WG A2-38 Transformer Thermal Modelling - J. Lapworth (UK) WG A2.40 Copper sulphide long-term mitigation and risk assessment J. Lukic (RS) JWG A2/D1.41 Oil conductivity under DC condition – A. Küchler (DE) WG A2.42 Guide on transformer Transportation - A. Mjelve (NO) WG A2.43 Transformer bushings reliability - A. Mikulecky (HR) WG A2.44 Transformer Intelligent Condition Monitoring C. Dupont (BR) WG A2.45 Transformer Failure Invest. & post-mortem Analysis M.C. Lessard (CA) JWG A2/D1.46 Field experience with trans. solid insulating ageing markers R. Mertens (BE) JWG D1/A2.47 New frontiers of Dissolved Gas Analysis (DGA) interpretation for power transformers and their accessories M. Duval (CA) WG A2.48 Technology and utili. of Oil Insulated HV Shunt Reactors S. Ryder (UK) WG A2.49 Condition Assessment of Power Transformers P. Cole (AU) WG A2.50 Effect of the distributed energy sources and consequent induced reverse power flow (step up) on T&D transformers J. C. Riboud (FR) JWG A2/D1.51 Improvement to Partial Discharge Measurements for Factory and Site Acceptance Tests of Power Transformers - S. Coenen (DE) JWG A2/C4.52 HF transformer models for non-standard waveforms Bjorn Gustavsen (No)

Recent CIGRE BROCHURES Scope Ref Year Transient Interac-Transformers & Power System 577 2014 Guide for Specifications 528 2013 Guide for Design Review 529 2013 Guide for Factory Capability Assessment 530 2013 Guide for Fire Safety 537 2013 Guide on Transformer Maintenance 445 2011 HVDC Tr. – Test, ageing, reliability in service 406 2010 HVDC Tr. – Guidelines for design review 407 2010 Experience in service with new insulating liquids 436 2010 Copper Sulphide in Transformer Insulation 378 2009

2015 SC A2 Colloquium 2015 Colloquium in Shanghai September 20-15 (with SC B3 and C3) Preferential Subjects: EHV/UHV and EHVDC/UHVDC Transformers and its components Specification, design, manufacturing and testing Transportation constraints, installation and commissioning Reliability, operation and maintenance Equipment technologies for substations of the future and Smart Grid HV equipment using innovative efficient and environmentally friendly interrupting media and dielectric materials Optimization of substation design, O&M and equipment in efficiency, compactness, noise, costs, low maintenance, etc.

2015 SC A2 Colloquium Improved control of switching devices and means to reduce network stresses Increased application of semi conductor technologies and superconductivity Making the Best use of the Existing transformer fleet Life Management techniques, criticality evaluation, fleet ranking Improvements to condition monitoring, diagnostic techniques and on-site testing Influence of more severe weather and new environmental considerations Mitigation techniques to cope with higher stresses applied on aged transformers

Future WG activities Possible future WG - under discussions FRA Interpretations Phase Shifting Transformers Effects of GIC Life Extension Typical and Minimum Sound Level Efficient and eco-design transformers

Thanks for Your attention http://a2.cigre.org/