Active Working Groups January 2012:
| SAG | Strategic Advisory Group |
| CTAG D1 | Customer and Tutorial Advisory Group |
| AG D1.01 | Liquid and Liquid Impregnated Insulation Systems |
| AG D1.02 | High Voltage and Current Testing and Diagnostic |
| AG D1.03 | Insulating Gases |
| AG D1.04 | Solid Materials |
| WG D1.19 | Solid Insulation Endurance under Repetitive Transient Voltages |
| WG D1.23 | Diagnostics and Accelerated Life Endurance Testing of Polymeric Materials for HVDC Application |
| WG D1.25 | Application Guide for PD Detection in GIS using UHF or Acoustic Methods |
| WG D1.27 | Material Properties for New and Non-ceramic Insulation |
| WG D1.28 | Optimized Gas-insulated Systems by Advanced Dielectric Coatings and Functionally Graded Materials |
| WG D1.29 | Partial Discharges in Transformers |
| WG D1.30 | Oxidation Stability of Transformer Insulating Oils |
| WG D1.31 | Dielectric Performance of insulating liquids for transformers |
| WG D1.34 | Condition assessment for oil-impregnated insulation used in ac cables |
| WG D1.35 | Performance of high-voltage and high-current measurement systems for high voltage testing |
| WG D1.36 | Special requirements for dielectric testing of ultra high voltage (UHV) equipment |
| WG D1.37 | Maintenance and evaluation of measuring procedures for conventional and unconventional partial discharge testing |
| WG D1.38 | Emerging Test Techniques Common to High Temperature Superconducting (HTS) Power Applications |
| WG D1.39 | Methods for Diagnostic/Failure Data Collection and Analysis |
| WG D1.40 | Functional Nanomaterials for the Electrical Power Industry |
| JWG A2/D1.41 | HVDC Transformer polarity reversal: Role of oil conductivity |
| WG D1.42 | Radiation Ageing of Polymeric Insulating Materials |
| WG D1.43 | Rotating machine insulation voltage endurance under fast repetitive voltage transients |
| WG D1.44 | Testing of naturally polluted insulators |
| WG D1.45 | Testing of insulator performance under heavy rain |
| JWG A2/D1.46 | Field Experience with Transformer Solid Insulating Ageing Markers |
| JWG D1/A2.47 | New Frontiers of DGA Interpretations for Power Transformers and their Accessoiries |
| WG D1.48 | Properties of Insulating Materials under VLF Voltages |