Summary
Modern numerical protection relays generate a large volume of diagnostic information in the form of disturbance records, event logs, sequence-of-events data, logic status indications, and self-supervision alarms. While these capabilities are well recognised, practical utility experience indicates that the diagnostic potential of protection relays remains significantly underutilised. Many protection-related disturbances, maloperations, and non-operations are not attributable to hardware failures but to gaps in knowledge associated with configuration, interpretation of relay behaviour, system evolution, and organisational learning.
Read more Read lessThis paper presents a utility-driven approach to unlocking the diagnostic potential of protection relays through structured knowledge management. Based on extensive field experience and multiple real-life case studies, the paper demonstrates how systematic analysis of relay data, combined with formal mechanisms for knowledge capture, validation, and dissemination, transforms isolated protection incidents into enduring institutional knowledge. The role of digitalisation, Supervisory Control and Data Acquisition (SCADA) integration, and human factors in strengthening knowledge management practices is examined. The paper concludes that structured knowledge management is an essential protection function for reliable operation of modern power systems with high renewable penetration and aging assets.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B5_10603_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | India |
| Study committees | |
| File size | 2 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
JHA* Pankaj Kumar - POWERGRID INDIA; CHOPRA Kritika - POWERGRID INDIA; SAHU Kuleshwar - POWERGRID INDIA
Keywords
Digital relays, Instrument Transformer, knowledge management, protection system, Renewable Energy
