CIGRE active Working Groups Call for experts

There are approximatively 260 CIGRE Working Groups (WG) managed by the Study Committees. Every year between 40 and 50 WGs terminate their work by publishing a Report or a Technical Brochure, after the review and approval of their Study Committees. The Technical Council approves every year almost the same number of new WGs with new Terms of Reference (TOR) proposed by the Study Committees.

If you are interested in becoming a member of one of these Working Groups, please contact your National Committee.

CIGRE Working Groups approved in 2023

• TOR-WG C5-37_Regulatory framework on modernization and extension of useful life of transmission & distribution assets
• TOR-WG B5.83_Protection for modern distribution networks
• TOR-WG B5.82_Education, qualification and continuing professional development of engineers in protection, automation and control
• TOR-WG B5.81_Obsolescence management for protection, automation and control systems
• TOR-JWG D1_A2.79_Improved understanding of dynamic behaviour of winding insulating materials in liquid insulated power transformers
• TOR-WG A3.49_Ageing effects on accuracy class of instrument transformers
• TOR-WG D1.78_Partial discharge properties of non-SF6 insulating gases and gas mixtures
• TOR-WG B1.89_Guidance for conducting cable systems failure analysis
• TOR-WG B2.88_Guidelines for safety of overhead line construction, maintenance & operation

CIGRE Working Groups approved in 2022

• TOR-WG B1.88_Recommendations regarding the use of non SF6 gases in cable systems
• TOR-WG D2.57_CIM (Common Information Model) Methodology
• TOR-WG B1.90_Cable Systems Electrical Characteristics (Update TB 531)
• TOR-WG B1.91_Transient Thermal Modelling of Power Cables (update to IEC 60853)
• TOR-WG C4.74 _Accurate line and cable models for steady-state and transient studies
• TOR-WG C4.73_Insulation coordination of HVDC overhead lines
• TOR-WG A2.68_Failure survey of lower voltage generator step up transformers installed in wind farms and photovoltaic parks
• TOR-WG A2.69_ Guide for transformer maintenance update
• TOR-JWG C5_C1.36_Certification of the electricity used to produce hydrogen
• TOR-WG B4.94_Application of VSC-HVDC in a System Black Start Restoration
• TOR-WG B3.65_Guidelines for the Selection and Design of escape routes for substations rated above 1kV AC and 1.5 kV DC
• TOR WG C6.45_The impact of distributed energy resources (DER) on the resilience of distribution networks
• TOR-WG B5.78_New requirements of network protection and control for renewable energy integration
• TOR-JWG B5_C4.79_Protection roadmap for low inertia and low fault current networks
• TOR-JWG A2_D1.67_Guideline for online dissolved gas analysis monitoring
• TOR-WG A3.48_4th CIGRE Reliability survey on transmission and distribution equipment_rev1
• TOR-JWG C2_B4.43_The impact of offshore wind power hybrid ACDC connections on system operations and system design
• TOR-JWG B4_C4.93_Development of Grid Forming Converters for Secure and Reliable Operation of Future Electricity Systems.
• TOR-JWG C4_B4.72_Lightning and Switching Induced Electromagnetic Compatibility (EMC) issues in DC power systems and new emerging power electronics-based DC equipment
• TOR-JWG B3_D2.62_Life-long Supervision and Management of Substations by use of Sensors, Mobile Devices, Information and Communication Technologies
• TOR-WG C5.34_Summary of current uses of electric vehicle charge-discharge flexibility in wholesale energy markets and reliable grid operation-rev1
• TOR-JWG B3_D1.63_Guideline for assessing the toxicity of used SF6 gas onsite and in the lab of T&D equipment above 1 kV in substations
• TOR-WG B3.64_Guidelines on Optimising Seismic Design of Substations for Power Resiliency
• TOR-JWG A2_D1.66_Breathing systems of liquid filled transformers and reactors
• TOR-JWG A2_D2.65_Transformer Digital Twin – concept and future perspectives
• TOR-WG B5.77_Requirements for information technologies (IT) and operational technology (OT) managed PACS
• TOR-JWG C5_C1.35_Integration of hydrogen in electricity markets and sector regulation
• TOR-WG B2.87_Live line and vicinity working on overhead lines - Safe Management Guidelines
• TOR-WG C4.71_Small signal stability analysis in inverter based resource dominated power system
• TOR-WG D2.56_Interdependence and Security of Cyber-Physical Power System (CPPS)

CIGRE Working Groups approved in 2021

• TOR-JWG B2-C1.86_Approach for Asset Management of Overhead Transmission Lines
• TOR-WG C2.42 The impact of the growing use of ML-AI in the operation and control of power networks from an operational perspective
• TOR-WG A3.47_Lifetime Management of Medium Voltage Indoor Switchgear
• TOR-WG B1.83_Grounding aspects for HVDC land cable connections
• TOR-WG B1.86_Assessment, Prevention and Mitigation of Safety Risk in Cable Systems
• TOR-WG B1.87_Finite Element Analysis for Cable Rating Calculations
• TOR-WG B1.82_MVDC Cable System Requirements
• TOR-WG C4.70_Application of space-based lightning detection in power systems
• TOR-WG C4.69_Quantifying the lightning response of tower-footing electrodes of overhead transmission lines_methods of measurement
• TOR-WG D2.55_Application of 5G Technology to Smart Grids
• TOR-WG B2.85_Emergency Restoration Systems for Overhead Lines - Guide for Design, Planning and Installation
• TOR-WG C6.44_Nodal Value of Distributed Renewable Energy Generation
• TOR-JWG B1_C3.85_Environmental impact of decommissioning of underground and submarine cables
• TOR-WG C4.68_Electromagnetic Compatibility (EMC) issues in modern and future power systems
• TOR-WG C4.67_ Lightning Protection of Hybrid Overhead Lines
• TOR-WG B3.61_Risk and asset health based decision making in existing substations
• TOR-WG C4.66_New concept for analysis of multiphase back-flashover phenomena of overhead transmission lines due to lightning
• TOR-JWG B3-A3.60_User guide for non-SF6 gases and gas mixtures in Substations
• TOR-WG C6.43_Aggregation of battery energy storage and distributed energy resources (DER), including solar PV
• TOR-WG B2.84_Assessment of the methodologies to analyze wind induced overhead line conductors motion: applications and limitations
• TOR-JWG C2_C5.06_The Impact of electricity market interventions by system operators during emergency situations
• TOR-WG D2.54_Regulatory approaches to enhance EPU’s cybersecurity frameworks-rev1
• TOR-WG C4.65_Specification, validation and application of harmonic models of inverter based resources
• TOR-JWG C4-C2.62-IEEE_Review of Advancements in Synchrophasor Measurement Applications
• TOR-WG C4.63_Harmonic power quality standards and compliance verification – a comparative assessment and practical guide
• TOR-WG C4.64_Application of Real-Time Digital Simulation in Power Systems
• TOR-WG D1.76_Tests for verification of quality and ageing performance of cellulose insulation for power transformers
• TOR-WG B5.76_Architecture, Standards and Specification for metering system in a Digital Substation and Protection, Automation and Control environment-rev1
• TOR-WG B5.75_Documentation and version handling related to Protection, Automation and Control functions
• TOR-WG C4.61_Lightning transient sensing, monitoring and application in electric power systems

CIGRE Working Groups approved in 2020

• TOR-WG C4.60_Generic EMT-Type Modelling of Inverter-Based Resources for Long Term Planning Studies
• TOR-JWG C1_C4.46_Optimising power system resilience in future grid design
• TOR-WG C1.45_Harmonised metrics and consistent methodology for benefits assessment in CBA of electric interconnection projects
• TOR-WG C1.47_Energy Sectors Integration and impact on power grids
• TOR-WG C1.48_Role of green hydrogen in energy transition - Opportunities and challenges from technical and economic perspectives
• TOR-WG B1.76_Enhancing quality assurance - quality control procedures for HV and EHV cable systems
• TOR-WG B1.80_Guidelines for Site Acceptance Tests of DTS and DAS Systems used for cable systems monitoring
• TOR-WG B2.83_Mitigation of induced noises by corona activity in overhead AC and DC lines
• TOR-WG C5.33_Trading electricity with blockchain systems
• TOR-WG B5.74_Busbar protection considerations when using IEC 61850 process bus
• TOR-WG A1.72_Survey on Generator and Motor multi-turn coils with dedicated turn insulation versus coils without dedicated turn insulation
• TOR-WG A1.71_Survey on damper-winding concepts and its operational experience on hydro generators and motor-generators
• TOR-WG B2.82_Overhead Line Foundations for Difficult Soil and Geological Conditions
• TOR-WG B4.92_STATCOMs at Distribution Voltages
• TOR-WG B4.91_Power electronics-based transformer technology, design, grid integration and services provision to the distribution grid
• TOR-WG B4.90_Operation and Maintenance of HVDC and FACTS Facilities
• TOR-WG C6.41_Technologies for Electrical Railway Distribution Supply Systems
• TOR-WG C6.42_Electric Transportation Energy Supply Systems-rev1
• TOR-WG A1.73_Customer Requirements for Qualification of Form Wound Stator Insulation Systems for Hydro Generators
• TOR-WG C2.18_Wide Area Monitoring Protection and Control Systems – Decision Support for System Operators
• TOR-WG B4.89 _Condition Health Monitoring and predictive maintenance of HVDC Converter Stations
• TOR-JWG B3_A3.59 _Guidelines for SF6 end-of-life treatment of T&D equipment (above 1kV) in Substations-rev1
• TOR-WG A1.70_Dielectric Dissipation Factor Measurements on Stator Windings
• TOR-WG A1.69_Hydro-Generator Excitation Current Anomalies
• TOR-WG B5.73_Experiences and Trends related to Protection Automation and Control Systems Functional Integration
• TOR-WG B2.81_Increasing the Strength Capacity of Existing Overhead Transmission Line Structures-reva
• TOR-WG B2.77_Risk Management of OHL networks - A model for identification, evaluation and mitigation of operational risks
• TOR-WG B4.87_VSC HVDC responses to disturbances and faults in AC systems which have low synchronous generation
• TOR-WG D2.53_Technology and Applications of Internet of Things in Power Systems
• TOR-WG B2.80_Numerical Simulation of electrical fields on AC and DC Overhead Line Insulator Strings
• TOR-WG D2.52_Artificial Intelligence Application and Technology in Power Industry
• TOR-WG B2.79_Enhancing Overhead Line Rating Prediction by Improving Weather Parameters Measurements
• TOR-JWG D1_A2.77_Liquid Tests for Electrical Equipment
• TOR-WG B2.78_Use of High Temperature Conductors in New Overhead Line Design
• TOR-WG B5.72_Modelling, Assessment, and Mitigation of Protection Performance Issues caused by power plants during Dynamic Grid Events
• TOR-JWG B4_A3.86 _Fault Current Limiting Technologies for DC Grids
• TOR-JWG D1_B1.75 _Strategies and tools for corrosion prevention for cable systems
• TOR-WG B5.71_Protection, Automation and Control Systems Communication Requirements for Inter-Substation and Wide Area Applications
• TOR-WG B3.58_Knowledge Transfer of Substation Engineering and Experiences-rev1

CIGRE Working Groups approved in 2019

• TOR-WG C3.22 _Vegetation management in substations
• TOR-WG B1.73_Recommendations for the use and testing of Fibre Optic Cables used in Land Cable Systems
• TOR-WG B4.85_Interoperability in HVDC systems based on partially open-source software
• TOR-WG B4.84_Feasibility study and application of electric energy storage systems embedded in HVDC systems
• TOR-JWG B1_B3.74_Recommendations for a performance guideline of Polymer Insulated Busbars
• TOR-WG D2.51_Implementation of Security Operations Centers (SOC) in Electric Power Industry as Part of Situational Awareness System-rev1
• TOR-JWG B1_B3_D1.79_Recommendations for dielectric testing of HVDC gas insulated system cable sealing ends-rev1
• TOR-WG D2.50_Electric power utilities’ cybersecurity for contingency operations
• TOR-JWG B1_D1.75_Interaction between cable and accessory materials in HVAC and HVDC applications
• TOR-WG A3.45_Methods for identification of frequency response characteristic of voltage measurement systems
• TOR-WG A3.46_Generator Circuit-Breakers - review of application, requirements, practices, in-service experience and future trends
• TOR-WG C4.59_Real-time Lightning Protection of the Electricity Supply Systems of the Future
• TOR-WG C3.23_Eco-design methods for TSOs-DSOs under environmental transition
• TOR-JWG A3_A2_A1_B1.44_Limitations in Operation of High Voltage Equipment Resulting of Frequent Temporary Overvoltages
• TOR-WG C1.44_Global interconnected and sustainable electricity system - Effects of storage, demand response and trading rules
• TOR-JWG B2_C4.76_Lightning & Grounding Considerations for Overhead Line Rebuilding and Refurbishing Projects, AC and DC
• TOR-WG A2.64_Condition of cellulose insulation in oil immersed transformers after factory acceptance test
• TOR-WG A1.68_Evaluating Quality Performance of Electric Motor Manufacturing and Repair Facilities
• TOR-WG A1.67_State of the Art in methods, experience and limits in end winding corona testing for Hydro Generators
• TOR-WG C5.32_Carbon Pricing in Wholesale Electricity Markets
• TOR-WG D2.49_Augmented reality - Virtual reality to support Operation and Maintenance In Electric Power Utilities
• TOR-JWG C4_C2.58_IEEE_Evaluation of Voltage Stability Assessment Methodologies in Transmission Systems
• TOR-WG C4.57_Guidelines for the Estimation of Overhead Distribution Line Lightning Performance and its Application to Lightning Protection Design
• TOR-WG C6.40_Electric Vehicles as Distributed Energy Resource (DER) systems
• TOR-WG C6.36_Distributed Energy Resource Models for Impact Assessment
• TOR-WG C1.43_Requirements for Asset Analytics data platforms and tools in electric power systems
• TOR-WG C4.56_Electromagnetic transient simulation models for large-scale system impact studies in power systems having a high penetration of inverter connected generation
• TOR-WG B1.72_Cable rating verification – application in complex situations
• TOR-JWG B2_D2.72 _Condition Monitoring and Remote Sensing of Overhead Lines
• TOR-WG C5.31_ Wholesale and Retail Electricity Cost Impact of Flexible Demand Response
• TOR-WG C2.26_Power system restoration accounting for a rapidly changing power system and generation mix
• TOR-WG C3.21_Including stakeholders in the decision-making processes for grid development
• TOR-WG B1.70_Recommendations for the use and the testing of optical fibres in submarine cable systems
• TOR-WG B2.75_Application guide for insulated and un-insulated conductors used on medium and low voltage overhead lines
• TOR-WG B2.74_Use of unmanned aerial vehicles (UAVs) for assistance with inspection of overhead power lines
• TOR-JWG B4.82_IEEE_Guidelines for Use of Real-Code in EMT Models for HVDC, FACTS and Inverter based generators in Power Systems Analysis
• TOR-WG B4.81_Interaction between nearby VSC-HVDC converters, FACTs devices, HV power electronic devices and conventional AC equipment
• TOR-JWG A1_C4.66_Guide on the Assessment, Specification and Design of Synchronous Condensers for Power Systems with Predominance of Low or Zero Inertia Generators
• TOR-WG D1.74 _Partial discharge measurement on insulation systems stressed from HV power electronics
• TOR-WG B2.73_Guide for Prevention of Vegetation Fires Caused by Overhead Line Systems
• TOR WG B1.65_Installation of submarine cables
• TOR-WG B1.68_Condition evaluation and lifetime strategy of HV cable systems
• TOR-WG C4.55_EMC related very-fast transients in gas-insulated substations—EMC interferences, measured characteristics, modelling and simulations

CIGRE Working Groups approved in 2018

• TOR-WG B3.57_Impact on Engineering and Lifetime Management of Outdoor HV GIS
• TOR-WG B2.71_Recommendations for Interphase Spacers of Overhead Lines
• TOR-WG B1.67_Loading Patterns on Windfarm Array and Export Cables
• TOR-JWG C1_C6.42_Planning tools and methods for systems facing high levels of distributed energy resources
• TOR-WG B5.69_Experience gained and Recommendations for Implementation of Process Bus in Protection, Automation and Control Systems
• TOR-WG B5.70_Reliability of Protection Automation and Control System of power systems – Evaluation Methods and Comparison of Architect
• TOR-WG B1.71_Guidelines for Safety Risk Management in Cable Systems
• TOR-JWG C5_C6.29_ New Electricity Markets, Local Energy Communities
• TOR-JWG C4_A3.53_Application Effects of Low-Residual-Voltage Surge Arresters in Suppressing Overvoltages in UHV AC Systems
• TOR-WG C5.30_The Role of Block Chain Technologies in Power Markets
• TOR-WG A2.63_Transformer impulse testing
• TOR-JWG B1_C4.69_Recommendations for the insulation coordination on AC cable systems

• TOR-WG C4.54_Protection of high voltage power network control electronics from the High-altitude Electromagnetic pulse (HEMP)
• TOR-JWG C4_B4.52_Guidelines for Sub-synchronous Oscillation Studies in Power Electronics Dominated Power Systems
• TOR-JWG A3.43_Tools for lifecycle management of T&D switchgear based on data from condition monitoring systems
• TOR-WG A2.62_Analysis of AC Transformer Reliability
• TOR-WG B5.68_Optimisation of the IEC 61850 Protection, Automation and Control Systems (PACS) engineering process and tools
• TOR-WG A2.61_On-load tap-changer best practices
• TOR-WG A2.60_Dynamic Thermal Behaviour of Power Transformers
• TOR-WG C1.41_Closing the gap in understanding between stakeholders and electrical energy specialists
• TOR-WG C5.28_Energy Price Formation in Wholesale Electricity Markets
• TOR-WG C4.51_Connection of Railway Traction Systems to Power Networks
• TOR-JWG D2_C2.48_Enhanced Information and Data Exchange to Enable Future Transmission and Distribution Interoperability
• TOR-WG C3.20_Sustainable Development Goals in the Electric Power Sector
• TOR-WG B3.56_Application of 3D Technologies in Substation Engineering Works
• TOR-WG B3.55_Design guidelines for substations connecting battery energy storage solutions (BESS)
• TOR-WG B3.54_Earthing System Testing Methods - historic approaches, recent developments and recommended approaches
• TOR-WG B3.52_Neutral Grounding Method Selection and Fault Handling for Substations in the Distribution Grid
• TOR-WG A1.64_Guide for Evaluating the Repair-Replacement of Standard Efficiency Motors
• TOR-WG B3.53_Guidelines for Fire Risk Management in Substations
• TOR-JWG C6_C1.33_Multi-energy system interactions in distribution grids
• TOR-JWG C6_C2.34_Flexibility provision from distributed energy resources
• TOR-WG A1.65_Guide to optimal management of coal generation in presence of significant inverter based resources
• TOR-WG B4.79_Hybrid LCC-VSC HVDC Systems
• TOR-WG C6.39_Distribution customer empowerment_reva
• TOR-WG C6.38_Rural Electrification
• TOR-WG C6.35_Distributed energy resources aggregation platforms for the provision of flexibility services
• TOR-JWG C2_C4.41_Impact of high penetration of inverter-based generation on system inertia of networks
• TOR-JWG D2_C6.47 Advanced Consumer-Side Energy-Resource Management Systems (pdf, 151kB)
• TOR-WG C2.25 Operating Strategies and Preparedness for System Operational Resilience (pdf, 239kB)
• TOR-WG A1.63 Turbo Generator Stator Winding Bushings and Lead Connections – Field Experience, Failures and Design Improvements (pdf, 263kB)
• TOR-WG C3.09 Sustainable corridor management (pdf, 456kB)
• TOR-WG A1.62 Thrust Bearings for Hydropower - A Survey of Known Problems and Root Causes (pdf, 225kB)
• TOR-WG D1.72 Test of material resistance against surface arcing under DC (pdf, 75kB)
• TOR JWG B5 D2.67 Time in Communication Networks, Protection and Control Applications (pdf, 508kB)
• TOR WG B5.65 Enhancing Protection System Performance by Optimising the Response (pdf, 453kB)
• TOR-WG B3.51 Service continuity guide for the maintenance, repair and extension of HV GIS (pdf, 73kB)
• TOR-WG C2.39 Operator Training in Electricity Grids at Different Control Levels and for Different ParticipantsActors in the New Environment (pdf, 154kB)
• TOR WG A3.42 Failure analysis of recent AIS instrument transformer incidents (pdf, 209kB)
• TOR-WG C4.50 Evaluation of Transient Performance of Grounding Systems in Substations & Its Impact on Primary & Secondary Systems (pdf, 138kB)
• TOR-WG C4.49 Multi-frequency stability of converter-based modern power systems (pdf, 145kB)
• TOR-WG B1.66 Recommendations for testing DC Lapped Cable Systems for power transmission at rated voltages up to 800kV (pdf, 136kB)
• TOR-WG A3.40 Technical requirements and field experiences with MV DC switching equipment (pdf, 137kB)
• TOR-WG B2.70 Aircraft warning markers and bird flight diverters for Overhead Lines – Experience and recommendations (pdf, 139kB)
• TOR-WG D2.46 Cybersecurity future threats and impact on Electric Power Utility (pdf, 441kB)
• TOR-WG B1.62 Recommendations for testing DC extruded cable systems at a rated voltage up to 800 kV (pdf, 140kB)
• TOR-WG C3.19 Responsible management of the Electric and Magnetic Field Issue (pdf, 138kB)
• TOR-WG B1.64 Evaluation of Losses in Armoured Three Core Power Cables (pdf, 75kB)
• TOR-WG B1.63_Recommendations for mechanical testing of submarine cables for dynamic applications_rev a

CIGRE Working Groups approved in 2017

• TOR-WG D2.45 Impact of governance regulations and constraints on EPU sensitive data distribution and location of data storage (pdf, 131kB)
• TOR-WG D1.73_Nanostructured dielectrics Multi-functionality at the service of the electric power industry rev b
• TOR-WG C2.24 Mitigating the risk of fire starts and the consequences of fires near overhead lines for System Operations (pdf, 151kB)
• TOR-WG B4.78 Cyber Asset Management for HVDC-FACTS Systems (pdf, 76kB)
• TOR-WG B5.66 Cyber Security requirements for PACS and the Resilience of PAC Architectures (pdf, 134kB)
• TOR-WG B3.50 Concepts for on-site HV testing of GIS after installation, extension, retrofit or repair (pdf, 75kB)
• TOR-WG C4.47 Power System Resilience (PSR WG) (pdf, 192kB)
• TOR-WG C4.48 Overvoltage Withstand Characteristics of Power System Equipment 35-1200 kV (pdf, 154kB)
• TOR-WG C4.46 Evaluation of Temporary Overvoltages in Power Systems due to Low Order Harmonic Resonances (pdf, 77kB)
• TOR-WG C5.27 Market Design for Short-Term Flexibility (pdf, 149kB)
• TOR-WG C3.18 Eco-friendly approaches in Transmission and Distribution (pdf, 150kB)
• TOR-WG C5.26 Auction Markets and Other Procurement Mechanisms for Demand Response Services (pdf, 36kB)
• TOR-JWG C1 C6.37 CIRED Optimal transmission and distribution investment decisions under increasing energy scenario uncertainty (pdf, 162kB)
• TOR-WG B2.68 Sustainability of OHL conductors and fittings–Conductor condition assessment and life extension (pdf, 255kB)
• TOR-WG A1.60 Guide on economic evaluation for refurbishment or replacement decisions on hydro generators (pdf, 190kB)
• TOR-WG C3.17 Interactions between Wildlife and Emerging Renewable Energy Sources and associated Insulated Cables (pdf, 90kB)
• TOR-WG A1.61 Survey of Partial Discharge Monitoring in Large Motors (pdf, 44kB)
• TOR-WG B3.49 Review of substation busbar component reliability (pdf, 76kB)
• TOR-WG B2.67_Assessment and Testing of Wood and Alternative Material Type Poles
• TOR-WG C1.38 Valuation as a comprehensive approach to asset management in view of emerging developments (pdf, 156kB)
• TOR-WG D2.44 Usage of Public or Private Wireless Communication Infrastructures for Monitoring and Maintenance of Grid Assets and Facilities (pdf, 133kB)
• TOR-WG C1.40 Planning Coordination between Syst Op T&D-Frameworks, Methods, and Allocation of Costs and Benefits (pdf, 144kB)
• TOR-WG C1.39 Optimal power system planning under growing uncertainty (pdf, 143kB)
• TOR-WG B1.61 Installation of HV Cable Systems (pdf, 150kB)
• TOR-WG A1.59 Survey on Industry Practices and Effects associated with the Cutting Out of Stator Coils in Hydrogenerators (pdf, 111kB)
• TOR-JWG C2 B4.38 Capabilities and requirements definition for Power Electronics based technology for secure and efficient system operation and control (pdf, 156kB)
• TOR-WG B1.60 Maintenance of HV Cable Systems (pdf, 148kB)
• TOR-WG D1.69 Guidelines for test techniques of High Temperature Superconducting (HTS) systems (pdf, 141kB)
• TOR-WG C4.45 Measuring techniques and characteristics of fast and very fast transient overvoltages in substations and converter stations (pdf, 131kB)
• TOR-JWG C1 C4.36 Review of Large City & Metropolitan Area power system development trends taking into account new generation, grid and inform (pdf, 247kB)
• TOR-WG A2.58 Installation and Pre-Commissioning of Transformers and Shunt Reactors (pdf, 44kB)
• TOR-WG A2.59 On-Site Assembly, On-Site Rebuild, and On-Site High Voltage Testing of Power Transformers (pdf, 38kB)
• TOR-WG A3.39 Application and field experience with Metal Oxide Surge Arresters (pdf, 151kB)
• TOR-WG B1.58 Condition Assessment and Diagnostic Methods to support Asset Management of MV Cable Networks (pdf, 132kB)
• TOR-WG D1.68 Natural and synthetic esters - Evaluation of the performance under fire and the impact on environment (pdf, 125kB)
• TOR-WG B5.64 Methods for Specification of Functional Requirements of Protection, Automation, and Control (pdf, 43kB)
• TOR-WG B5.63 Protection, Automation and Control System Asset Management (pdf, 150kB)
• TOR-WG B5.62 Life Cycle Testing of Synchrophasor Based Systems used for Protection, Monitoring and Control (pdf, 142kB)
• TOR-WG B5.60 Protection, Automation and Control Architectures with Functionality Independent of Hardware (pdf, 209kB)
• TOR-JWG B5-C4.61 Impact of Low Inertia Network on Protection and Control (pdf, 145kB)

CIGRE Working Groups approved in 2016

• TOR-WG C5.24 Exploring the Market-based value of Smart Grid developments
• TOR-WG D1.70 Functional properties of modern insulating liquids for transformers and similar electrical equipment
• TOR-WG B3.48 Asset health indices for equipment in existing Substations-Rev1 (pdf, 127kB)
• TOR-WG C4.44 EMC for Large Photovoltaic Systems
• TOR-WG B4.76 DC-DC converters in HVDC Grids and for connections to HVDC systems
• TOR-WG B4.75 Feasibility Study for assessment of lab losses measurement of VSC valves
• TOR-WG B3.47 Application of Robotics in Substations
• TOR-WG C2.17 Wide Area Monitoring Systems – Support for Control Room Applications
• TOR-WG B2.66 Safe handling and installation guide for high temperature low sag (HTLS) conductors
• TOR-WG B3.46 Guidelines for Safe Work Methods in Substations
• TOR-WG D1.66 Requirements for PDM for gas-insulated systems - approved
• TOR-WG D1.67 Dielectric performance of non-SF6 gases for gas-insulated systems
• TOR-WG B3.45 Application of non-SF6 gases or gas-mixtures in MV & HV gas-insulated switchgear
• TOR WG A1.58 Selection of Copper Versus Aluminium Rotors for Induction Motors
• TOR-WG C3.16 Interactions between Electrical Infrastructure and Wildlife
• TOR-WG A2.57 Effects of DC Bias on power transformers
• TOR-WG A1.57 The Visual Inspection of Stator Windings and Cores of Large Turbo Generators
• TOR-WG A2.56 Power Transformer Efficiency
• TOR-WG A2.55 Life Extension of oil filled Transformers and Shunt Reactors
• TOR-WG C4.43 Lightning problems and lightning risk management for nuclear power plants
• TOR-WG B5.59 Requirements for Near-Process Intelligent Electronic Devices
• TOR-WG B5.58 Faster protection and network automation systems implications and requirements
• TOR-WG B5.57 New challenges for frequency protection
• TOR-WG B1.57 Update of service experience of HV underground and submarine cable systems
• TOR-WG B1.56 Cable rating verification
• TOR-WG A1.56 Survey on Lap and Wave Windings and their Consequences on Maintenance and Performance
• TOR-WG A1.55 Survey on Split Core Stators

CIGRE Working Groups approved in 2015

• TOR-WG C3.15 Best environmental and socio-economic practices for improving public acceptance of high voltage substations
• TOR WG D1.64 Electrical insulation systems at cryogenic temperatures
• TOR WG D1.65 Mechanical properties of insulating materials and insulated conductors for oil insulated power transformers
• TOR-JWG B4 B1 C4.73 Surge and extended overvoltage testing of HVDC Cable Systems
• TOR-WG B1.54 Behaviour of cable systems under large disturbances
• TOR-WG B4.72 DC grid benchmark models for system studies

• TOR-WG A2.54 Power transformer audible sound requirements
• TOR-WG A2.53 Objective interpretation methodology for the mechanical condition assessment of transformer windings using FRA
• TOR-WG A1.54 Impact of Flexible Operation on Large Motors
• TOR-WG B2.65 Detection, Prevention and Repair of Sub-surface Corrosion in Overhead Line Supports, Anchors and Foundations
• TOR-WG A1.53 Guide on Design Requirements of Motors for Variable Speed Drive Application
• TOR-WG B2.63 Compact AC Transmission Lines
• TOR-WG C1.33 Interface & Allocation Issues in multi-party andor cross-jurisdiction . power infrastructures projects
• TOR-JWG A1 C4.52 Wind generators and frequency-active power control of power systems
• TOR-WG D1.63 Partial discharge detection under DC stress
• TOR-WG B2.61 Transmission Line Structures with Fiber Reinforced Polymer (FRP) Composites
• TOR-WG B3.44 Substation servicing and supervision using mobile devices and smart sensing
• TOR-WG B2.60 Affordable Overhead Transmission Lines for Sub-Saharan Countries
• TOR-JWG C4.42 CIRED Continuous assessment of low-order harmonic emissions from customer installations
• TOR-JWG C4_B5.41_Challenges with series compensation application in power systems when overcompensating lines
• TOR-WG B4.71 Application guide for the insulation coordination of Voltage Source Converter HVDC (VSC HVDC) stations
• TOR-WG A1.51 Monitoring, Reliability & Availability of Wind Generators
• TOR-JWG D2-B2.39 Design, deployment and maintenance of Optical Cables associated to Overhead HV Transmission Lines
• TOR-WG B5.55_Application of Travelling Wave Technology for Protection and Automation-rev1
• TOR-WG B5.56_Optimization of Protection Automation and Control Systems rev a

CIGRE Working Groups approved in 2014

• TOR-WG C4.39 Effectiveness of line surge arresters for lightning protection of transmission OHL
• TOR-JWG C4.40 CIRED Revisions to IEC Technical Reports 61000-3-X
• TOR-WG A1.49 Magnetic core dimensioning limits in Hydro-Generators
• TOR-WG A1.48 Guidance on the Requirements for High Speed Balancing Overspeed Testing of Turbine Generator Rotors Following Maintenance or Repair
• TOR-WB B3.41 Mobile Substations Incorporating HV GIS – Design Aspects
• TOR-WG D1.61 Corona Detection and Measurement
• TOR-WG D1.60 Traceable measurement techniques for very fast transients
• TOR-WG B4.69 Minimizing loss of transmitted power by VSC during overhead line fault
• TOR-WG D1.62 Surface degradation of polymeric insulating materials
• TOR-WG B4.70 Guide for EMT studies with VSC
• TOR-WG A1.45 Guide for Determining the Health Index of Large Electric Motors
• TOR-WG B4.68 DC harmonics and Filters
• TOR-WG B4.66 Harmonics and filtering for HVDC in staggered installations
• TOR-WG C6.28 Hybrid Systems for off-grid power supply
• TOR-WG B2.59 Forecasting Dynamic Line Ratings
• TOR-WG B2.57 Survey of operational Composite Insulator Experience and Application Guide for Composite Insulators
• TOR-WG B3.39 NCIT_Impact of NCIT applications on HV Gas Insulated Switchgear rev a
• TOR-WG C3.14 Impact of Environmental liability on transmission and distribution activities
• TOR-WG D1.58_Evaluation of dynamic hydrophobicity of polymeric insulating materials under AC and DC voltage stress_rev a
• TOR-WG C4.36 Winter Lightning – Parameters and Engineering Consequences for Wind Turbines
• TOR-WG D1.59 Methods for dielectric characterisation of polymeric insulating materials for outdoor applications
• TOR-JWG A2 C4.52 High-frequency transformer models for non standard waveforms
• TOR-JWG A2 D1.51 Improvement to PD measurements for Factory and Site Acceptance Test
• TOR-JWG D1 B3.57 Dielectric Testing of gas-insulated HVDC Systems
• TOR-WG A1.43 State of the art of rotor temperature measurement
• TOR-WG A1.44 Guideline on Testing of Turbo and Hydrogenerators
• TOR-WG B5.54 Protection and Automation Issues of Islanded Systems

CIGRE Working Groups approved in 2013

• TOR-WG B1.44 Guidelines for safe work on cable systems under induced voltages or currents
• TOR-WG B5.52_Analysis and comparison of fault location systems in Substation Automation Systems rev a
• TOR-WG A1.42 Influence of Key Requirements to Optimise the Value of Hydrogenerators
• TOR-WG D1-56 Field grading in electrical insulation systems
• TOR-WG B4.64 Impact of AC System Characteristics on the Performance
• TOR-WG D1-54 Basic principles and practical methods to measure the AC and DC

CIGRE Working Groups approved in 2012 still active

• TOR-WG C4.23 Guide to procedures for estimating the lightning performance of transmission lines
• TOR-WG B1.38 After laying tests on AC and DC cable systems with new technologies
• TOR-JWG_D1-B1.49 Harmonised test for the measurement of residual inflammable gases
• TOR-WG D1.50 Atmospheric and altitude correction factors for air gaps and clean insulators
• TOR-WG B5.50 IEC 61850 based substation automation systems - Users expectations and stakeholders interactions V2
• TOR-WG B5.51 Requirements and Use of Remotely Accessed Information for SAS
• TOR-WG B5-48 Protection for developing network with limited fault current capability of generation
• TOR-WG B5-47 Network Protection Performance Audits

CIGRE Working Groups approved in 2011 still active

• TOR-WG A1.33 Guide for the Proper Storage and Cleanliness of Turbogenerators
• TOR-WG B1-34 Mechanical forces in large cross section cable systems

CIGRE Working Groups approved in 2010 still active

• TOR-WG B2-50 Safe handling of fittings and conductors
• TOR-WG C3-12 Methodologies for Greenhouse gas inventory and reporting for T&D utilities
• TOR-WG B2.24 Qualification of HV & UHV OHL supports under static and dynamic loads

CIGRE Working Groups approved in 2009 still active

• TOR-WG C1-23 Transmission investment decision points and trees

CIGRE Working Groups approved in 2008 still active

• TOR-WG B2-40 Preparatory studies for revision of IEC standard