Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe

Real-time transformer moisture monitoring minimizes downtime

By Michelle Froese | October 25, 2016

Vaisala, a global provider of environmental and industrial measurement, has emphasized the importance of continuous monitoring of moisture in transformer insulation oil. Continuous online monitoring will improve understanding of a phenomenon that contributes to the degradation of oil, increases the risk of catastrophic failure and, in the long-term, adds to maintenance costs.

The Vaisala Moisture, Hydrogen and Temperature Transmitter MHT410 for Transformer Oil measures directly from representative transformer oil giving both reliable hydrogen trend as well as fast moisture data.

The Vaisala Moisture, Hydrogen, and Temperature Transmitter MHT410 for Transformer Oil measures directly from representative transformer oil, providing a reliable hydrogen trend and fast moisture data.

“Traditionally, industry understanding of moisture dynamics in transformer oil has mainly been based on samples taken once annually that provide a limited “snapshot” of oil health,” said Steven Jiroutek, Regional Segment Manager for Industrial Applications at Vaisala.

“However, the growing use of online moisture monitoring instruments in the global power sector means more utilities can access 24/7 streaming data to monitor the condition of their transformers,” Jiroutek added. “Integrating these instruments into a comprehensive monitoring system and analyzing real-time trends is enabling owners and managers to make better, more cost-effective maintenance and service decisions.”

Improving technical awareness
Analysis that highlights the importance of 24/7 transformer moisture monitoring will be shared with representatives from electricity utilities and large industrial players at a webinar this week.

Entitled Moisture in Transformer Oil Behavior: A Deeper Look into a Complex Phenomenon, the session will demonstrate the role of online moisture monitoring data, not only in proactively mitigating faults, but also in creating greater technical awareness of how they develop.

Power transformers are among the most valuable and important assets in electrical power networks, constituting around 60% of substation capital costs. Thorough knowledge of their condition is critical in order to maximize return on investment and lower operational costs.

Moisture in the transformer oil is a widely recognized root cause of faults. Elevated moisture levels diminish the ability of the oil to act as an insulator, leading to arcing, partial discharge and thermal faults that affect safe performance and increase the risk of catastrophic failure from fire and explosion.

Staying on top of moisture levels enables utilities to make more effective proactive maintenance decisions, prevent avoidable outages and downtime, and extend the lifetime of their assets. While it is common practice to monitor moisture at regular intervals to track and prevent developing faults, centralizing real-time monitoring data from a fleet of thousands of operational transformers provides a more comprehensive and efficient means of determining what might go wrong, when, and where.

In turn, this analysis will create a clearer picture for the industry of exactly how moisture behaves within a transformer under changing environmental conditions.

Sharing market expertise
Vaisala’s webinar Moisture in Transformer Oil Behavior: A Deeper Look into a Complex Phenomenon forms part of a wider initiative to share market expertise and data via regular seminars and white papers.

Drawing on months of continuous field and laboratory data collected by Vaisala’s own moisture monitoring devices, it will include up to date findings on the moisture exchange between cellulose and oil, moisture hysteresis and the correlation between oil and cellulose moisture levels. This analysis will be followed by recommended best practices for online drying and moisture monitoring.

The online session will take place at October 27, 3PM EST. To join the webinar, please visit Vaisala’s webinar homepage.


Filed Under: Lubricants, News
Tagged With: vaisala
 

About The Author

Michelle Froese

Related Articles Read More >

US government allows Empire Wind offshore project to resume construction
Richardson Electronics to deliver pitch energy modules to TransAlta wind fleets
Equinor halts work on Empire Wind offshore project after federal government order
ARESCA wants input on offshore wind standards

Podcasts

Wind Spotlight: Looking back at a year of Thrive with ZF Wind Power
See More >

Windpower Engineering & Development Digital Edition

Digital Edition

Browse the most current issue of Windpower Engineering & Development and back issues in an easy to use high quality format. Clip, share and download with the leading wind power engineering magazine today.

Windpower Engineering & Development
  • Wind Articles
  • Solar Power World
  • Subscribe to Windpower Engineering
  • About Us/Contact Us

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising

Search Windpower Engineering & Development

  • Home
  • Articles
    • Most recent posts
    • News
    • Featured
  • Resources
    • Digital issues
    • Podcasts
    • Suppliers
    • Webinars
    • Events
  • Videos
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Magazine
  • Advertise
  • Subscribe