From Intermittent Faults to Lasting Grid Reliability

Background

Tata Power Odisha operates a complex electricity distribution network serving a large and diverse customer base. Like many utilities, the company faces challenges in maintaining consistent service reliability across long transmission spans exposed to environmental and external factors.

Intermittent faults (those that appear briefly and resolve themselves) are particularly difficult to diagnose, as they leave little physical evidence and often cannot be reproduced easily. These types of faults can significantly disrupt operations and increase maintenance complexity.

Challenge

Tata Power Odisha encountered persistent intermittent line faults characterized by:

• Sudden fault occurrence followed by automatic clearing
• Repeated tripping events with no visible cause
• Lack of identifiable patterns or physical evidence
• Increased operational uncertainty and inefficiency
• Difficulty in dispatching field crews without precise fault location

These challenges made it nearly impossible to determine the root cause using conventional monitoring and inspection methods.

Solution

Safegrid deployed its Intelligent Grid System®, which continuously analyzed grid behavior and provided precise fault location data.

Key actions enabled by the solution:

• Accurate pinpointing of fault locations
• Rapid deployment of field inspection teams
• Data-driven analysis of transient grid events

Root Cause Discovery:

On-site inspections revealed an unexpected cause:

• Large flocks of birds resting on long-span conductors
• When the birds took off simultaneously, the sudden weight release caused a “whiplash” or galloping effect
• This motion caused conductors to swing and briefly touch each other or nearby structures, triggering short circuits and tripping events

Permanent Fix:

With clear root-cause insight, Tata Power Odisha implemented a long-term solution:

• Installation of an intermediate pole to reduce conductor movement
• Stabilization of the span to eliminate the risk of conductor contact
  
  

Benefits

The Safegrid solution delivered multiple operational advantages:

• Accurate fault detection and location
• Clear root-cause identification for complex intermittent issues
• Reduced diagnostic time and field guesswork
• Improved operational efficiency and decision-making
• Enhanced grid stability through data-driven interventions
  
  

Results

The implementation of Safegrid’s Intelligent Grid System® led to:

• Successful identification of the true cause of intermittent faults
• Elimination of recurring tripping events
• Implementation of a permanent infrastructure solution
• Improved reliability of power supply
• Reduced operational disruptions and maintenance inefficiencies
  
  

Conclusion

By leveraging Safegrid’s Intelligent Grid System®, Tata Power Odisha transformed a complex, recurring problem into a clear and actionable solution. The ability to detect, locate, and understand intermittent faults enabled the utility to implement a targeted, long-term fix, resulting in a more stable and reliable grid.

This case demonstrates how advanced grid analytics and precise fault intelligence can uncover even the most unexpected causes and empower utilities to move from reactive troubleshooting to proactive, resilient grid management.