Continuous Monitoring: The New Pillar of a Digital and Sustainable Electrical Grid

1.Q: In terms of reliability and maintenance of critical assets such as transformers or overhead lines, how would you describe the current situation of the electricity sector? What role does continuous monitoring play in the context of the energy transition? What do you consider the main challenges for utilities in managing and monitoring their electrical infrastructure in real time?

Megger:
The electricity sector is evolving rapidly with the growth of renewables and the increasing complexity of networks. The reliability of assets such as transformers, underground cables, and overhead lines is essential for ensuring stability. Continuous monitoring enables early fault detection and supports predictive maintenance, helping utilities reduce unplanned outages and extend asset lifetimes. A key challenge remains managing large volumes of data—especially in compensated and solidly grounded networks—and turning that data into actionable, real-time decisions.

2.Q: Megger has been developing online monitoring solutions for years, such as DGA systems. What differentiates this technology from other offerings in the market? How do these systems help extend the lifetime of critical assets and reduce operating costs for grid operators?

Megger:
Our online monitoring solutions, such as MGA/DGA systems, stand out because they integrate advanced sensor technology with sophisticated diagnostic algorithms specifically designed for electrical assets. Megger solutions provide continuous, real-time information rather than occasional snapshots, enabling operators to identify developing faults early. This approach extends transformer life, optimizes maintenance planning, and reduces operating costs by preventing unexpected failures.

3.Q: What competitive advantages do real-time monitoring solutions such as MGA or IDAX offer compared to more traditional technologies? What tangible benefits have been observed in customers who have already implemented Megger’s monitoring solutions?

Megger:
Real-time monitoring solutions such as MGA and IDAX give utilities greater accuracy and diagnostic depth. MGA systems allow disturbance and fault analysis under live operating conditions, while IDAX provides detailed dielectric response analysis to assess insulation health. Customers using these solutions have reported significant reductions in outages, with measurable improvements in SAIDI and SAIFI performance indicators. By identifying weak points early, utilities can make smarter maintenance investments and ensure higher operational reliability—clear progress compared to traditional periodic checks.

4.Q: Could you share a particularly interesting or innovative project recently developed with monitoring technologies? What results or operational improvements have these customers achieved after implementing solutions such as MGA or IDAX?

Megger:
A recent project involved implementing MGA and IDAX systems in a regional utility with a large installed base of aging transformers. By adopting Megger’s continuous monitoring technologies, the company achieved measurable improvements in asset availability and reduced maintenance interventions by more than 20%. The systems provided early alerts and disturbance localization in the distribution network, allowing planned interventions instead of emergency replacements. This resulted in greater network resilience and cost savings. Based on trend analysis from Megger software such as Metryview, the utility identified areas most prone to failure and, through preventive maintenance actions, drastically reduced outage time by replacing insulators in the weakest sections and pruning low tree branches.

5.Q: From an environmental perspective, how can monitoring of electrical assets contribute to a more sustainable and efficient grid? Do you believe that in the future regulations will require monitoring of certain key assets to ensure grid stability and sustainability?

Megger:
Monitoring directly supports sustainability by maximizing the lifespan of installed assets, reducing premature replacements, and lowering the carbon footprint associated with manufacturing and logistics. It also minimizes risks of oil leaks and other environmental hazards resulting from catastrophic failures. As we move toward the goal of net zero, continuous monitoring becomes the foundation of proactive maintenance—similar to maintaining a healthy lifestyle to avoid the need for emergency medical care. Traditional protection systems act during emergencies, but continuous monitoring keeps assets in good condition so that protection only operates when absolutely necessary.

6.Q: Finally, how do you foresee the monitoring market evolving in the next 5 to 10 years? What role does Megger play in this future? What strategic directions is the company developing to lead this digital transformation in electrical maintenance?

Megger:
In the next 5 to 10 years, monitoring will be central to digital asset management, supported by the integration of AI and IoT. SCADA systems, PMUs, synchrophasors, and intelligent electronic devices already generate large volumes of data, but the challenge lies in turning it into actionable intelligence. AI provides the ability to systematically process this data, reduce human error, and enable predictive insights. Megger is investing in advanced monitoring solutions such as the MS5000 for overhead lines, the MS6000 for underground cables, traveling wave fault location systems, and algorithms based on current, voltage, and symmetrical components for monitoring compensated networks. These innovations position Megger as a leader in digital transformation, helping utilities operate more intelligently, safely, and sustainably.