Megger Renewable Systems Testing Series

Upcoming webinar

Cutting-Edge Insulation Resistance Testing in Renewables: Test Smarter, Test Safer, Test Faster

Date: November 4, 2025

Presenter: Ahmed El-Rasheed

Registration link: https://event.on24.com/wcc/r/5085512/A7421154ACED49CAE0DAEBB042EE312F

Stop Waiting. Start Testing. Start Saving. 

Insulation resistance testing is critical for maintaining the safety and efficiency of renewable energy systems. But what if you could cut your testing time by up to 70% while improving safety? 

This webinar, designed specifically for engineers and technicians in the renewable energy industry, will introduce you to Insulation Resistance Testing and two breakthrough technologies that are transforming this important test:

  • Predictive Polarization Index (PPI): Get your 10-minute PI test results in just 3 to 5 minutes. Perfect for high-volume testing of three-phase cables, PPI gives you accurate results faster than ever before.
  • Re<act Mode: Don't risk a shock from residual reabsorption current. This feature detects if current is still present in an asset after a test, ensuring a safer work environment and more reliable, repeatable test results.

Join us for a detailed look at these innovations and discover how they can help you improve the efficiency and safety of your testing protocols in the field.

Previous webinars

Practical Protection Testing in Wind Power Plants

Date: September 2, 2025

Presenter: Abel Gonzalez

Recording link: https://event.on24.com/wcc/r/4988816/2B3837014C8649DFD54A2ACAC9A6259D

Join us for a webinar to explore the practical aspects of testing protection systems in wind turbine generation. The webinar will start with an overview of different wind turbine types and common interconnection and protection designs.

The core of the session will focus on diverse protection schemes used on wind turbines and wind turbine generation sites. We will cover wind turbine generator protection as well as the different considerations for protection of buses, feeders, transformers, and lines associated with these types of systems. The presentation will describe the challenges behind the design and operation of these IBR connected generation systems, for system stability, frequency control and fault detection. The impact of relevant standards and NERC regulations on protection design and testing will be reviewed.

The webinar will culminate with a detailed look at secondary and primary injection testing with emphasis on system rather than element testing and functional rather than function testing, providing attendees with actionable knowledge to ensure the robust protection of wind power assets.

Underground Cable Fault Location, Test, and Diagnostics (CFLT&D) in Onshore Renewables

Date: July 8, 2025

Presenter: Matt Iannuzzi

Recording link: https://event.on24.com/wcc/r/4929409/13F032F1C5129691D4CF30D69F04EE22

 As global demand for clean energy accelerates, the onshore renewable energy sector—especially wind and solar—is experiencing unprecedented growth. With this expansion comes an increasing dependence on underground power cable systems, which serve as the critical link between generation assets and the grid. However, these cables are not immune to stress. From installation damage and thermal overload to moisture ingress and insulation breakdown, underground cables face a variety of environmental and operational challenges throughout their lifecycle.

When a fault occurs, the impact can be immediate and costly: unexpected outages, loss of generation, prolonged repair times, and rising operational expenses. In a sector where reliability and efficiency are paramount, the ability to quickly locate, test, and repair faults is not just beneficial—it’s essential.

Join us for this insightful webinar where we’ll dive into the advanced techniques and state-of-the-art tools used in Cable Fault Location, Testing, and Diagnostics (CFLT&D) for onshore renewables. Whether you’re dealing with aging infrastructure or managing new installations, this session will equip you with the knowledge to:

  • Identify and address issues early before they lead to critical failure
  • Minimize downtime and accelerate recovery with accurate fault location methods
  • Enhance long-term reliability through regular testing and diagnostics

This free webinar will help you make informed decisions that directly support the reliability, safety, and profitability of your renewable energy operations.

Challenges and Recommendation for Performing Partial Discharge Measurements on Hydrogenerators

Date: May 6, 2025

Presenter: Charles Nybeck

Recording link: https://event.on24.com/wcc/r/4883211/2376C7BED5B3BAE29ED308A1C93EBA7B

Renewable hydrogeneration facilities rely on large generators to convert mechanical energy from turbines that are driven by water into a form of clean electricity. Due to their criticality, regular condition assessment and properly planned maintenance is vital to ensure stable and continuous operation of the power plant. Partial discharge measurements have proven to be a key-element for condition assessment of the electrical insulation systems for various high voltage machinery. They have the capability to provide an in-depth analysis of current state of the main insulation and possibly identify defects at an early stage before permanent damage has occurred.  
 

This session explains first the basic measurement principles behind partial discharge testing on rotating machinery in general, while focusing later on hydrogenerators and the specific challenges associated with PD measurements. It also gives recommendations on how to overcome these challenges in the field.  

Transformers in Inverter Based Power: Challenges and Maintenance

Date: March 4, 2025

Presenter: Volney Naranjo

Recording link: https://event.on24.com/wcc/r/4849417/B33E6DB2D07C02A06639E94DC6DAE567

Abstract: Photovoltaic, Wind Generation and Energy Storage rely on inverters to convert the generated and stored power into a stable and regular flow, however in the process of power conversion multiple phenomena take place resulting in the early degradation of the insulation or the infant mortality of the associated transformers. This affects the reliability, efficiency, economic performance, operation as well as the public perception of the renewable power generation sector.  

This session explains the common causes of early degradation, provides a review of mitigation approaches, and discusses the recommended maintenance and testing practices to extend the life of the transformers in a renewables fleet.  The presentation will also give a high-level overview of the testing techniques and the recommended instruments.