--- title: THD Waveform Capture Triggering description: Read why THD triggering is the most effective way to capture waveform data. image: https://library.powermonitors.com/hubfs/White_Papers/White%20Paper%20Header%20Images/THD%20Waveform%20Capture%20Triggering.png --- [![PMI_Logo_White_Slogan](https://library.powermonitors.com/hs-fs/hubfs/Branding%20-%20Logos%20and%20Designs/PMI_Logo_White_Slogan.png?width=655&height=175&name=PMI_Logo_White_Slogan.png "PMI_Logo_White_Slogan")](https://powermonitors.com) [![PMI Logo: Tools you Need. People you Trust.](https://library.powermonitors.com/hubfs/PMI_Website/logo.svg "PMI Logo: Tools you Need. People you Trust.")](http://powermonitors.com) [![PMI Logo: Tools you Need. People you Trust.](https://library.powermonitors.com/hubfs/PMI_Website/logo.svg "PMI Logo: Tools you Need. 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[Join Our Team!](https://info.powermonitors.com/join-pmi) - [Receive our Newsletter](https://info.powermonitors.com/email-subscribe-page) - [PQ Resources](https://info.powermonitors.com/power-quality-resources) - [Power Quality Solutions](https://powermonitors.com/power-quality-solutions/) - [Who We Serve](https://powermonitors.com/sales-representatives/) - [Account](https://powermonitors.com/account/) This is a search field with an auto-suggest feature attached. - There are no suggestions because the search field is empty. ![PMI-Logo-Phone-Site-2023-900px](https://library.powermonitors.com/hs-fs/hubfs/PMI-Logo-Phone-Site-2023-900px.png?width=113&name=PMI-Logo-Phone-Site-2023-900px.png "PMI-Logo-Phone-Site-2023-900px") # THD Waveform Capture Triggering   |   , ## **Unlocking Hidden Power Quality Events with THD-Based Waveform Capture** This white paper demonstrates how Total Harmonic Distortion (THD)-based waveform capture triggers enable detection of complex power quality events that traditional RMS-based methods miss. By monitoring rapid changes in THD from one cycle to the next, utilities can capture and analyze transient disturbances such as capacitor bank switching, voltage notching, and oscillatory transients. The paper details the logic, configuration, and practical examples of THD-triggered waveform capture, highlighting its advantages for comprehensive power quality monitoring. **Key topics include:** - Waveshape Trigger Logic and Settings - Analyzing the Results - Examples and Recommendations **Why utilities should care:** THD-based waveform capture reveals transient and sub-cycle events that standard RMS triggers overlook, enabling more accurate identification of power quality issues, improved event classification, and better-informed operational decisions for grid reliability. You may also enjoy...   - - - - ## Speakers ### [Alvin Rogers](https://library.powermonitors.com/thd-waveform-capture-triggering#inline-content-1speakers)[Follow me on LinkedIn](https://www.linkedin.com/apex-alvinrogers) Director of Sales Omnicorp Alvin Rogers Director of Sales Omnicorp About Alvin Rogers Alvin Rogers is a highly accomplished and sought-after speaker, renowned for their expertise and captivating stage presence. With a diverse background in \[relevant field or industry\], they bring a wealth of knowledge and experience to every speaking engagement. Their dynamic and engaging style seamlessly combines powerful storytelling with actionable insights, leaving audiences inspired and equipped with practical strategies for success. Alvin has delivered impactful keynote addresses at prestigious conferences and corporate events worldwide, consistently receiving rave reviews for their ability to connect with and energize audiences. Whether addressing topics such as \[specific areas of expertise\], leadership, or innovation, Alvin is dedicated to empowering individuals and organizations to reach their full potential. [LinkedIn](https://www.linkedin.com/apex-alvinrogers) [Facebook](https://www.facebook.com/apex-alvinrogers) [Instagram](https://www.instagram.com/apex-alvinrogers) [Twitter](https://www.twitter.com/apex-alvinrogers) ### [Lisa Smith](https://library.powermonitors.com/thd-waveform-capture-triggering#inline-content-2speakers)[Follow me on LinkedIn](https://www.linkedin.com/apex-lisasmith) Creative Director Megacorp Lisa Smith Creative Director Megacorp About Lisa Smith Lisa Smith is a highly accomplished and sought-after speaker, renowned for their expertise and captivating stage presence. With a diverse background in \[relevant field or industry\], they bring a wealth of knowledge and experience to every speaking engagement. Their dynamic and engaging style seamlessly combines powerful storytelling with actionable insights, leaving audiences inspired and equipped with practical strategies for success. Lisa has delivered impactful keynote addresses at prestigious conferences and corporate events worldwide, consistently receiving rave reviews for their ability to connect with and energize audiences. Whether addressing topics such as \[specific areas of expertise\], leadership, or innovation, Lisa is dedicated to empowering individuals and organizations to reach their full potential. [LinkedIn](https://www.linkedin.com/apex-lisasmith) [Facebook](https://www.facebook.com/apex-lisasmith) [Instagram](https://www.instagram.com/apex-lisasmith) [Twitter](https://www.twitter.com/apex-lisasmith) ### [James McGiven](https://library.powermonitors.com/thd-waveform-capture-triggering#inline-content-3speakers)[Follow me on LinkedIn](https://www.linkedin.com/apex-jamesmcgiven) President Minicorp James McGiven President Minicorp About James McGiven James McGiven is a highly accomplished and sought-after speaker, renowned for their expertise and captivating stage presence. With a diverse background in \[relevant field or industry\], they bring a wealth of knowledge and experience to every speaking engagement. Their dynamic and engaging style seamlessly combines powerful storytelling with actionable insights, leaving audiences inspired and equipped with practical strategies for success. James has delivered impactful keynote addresses at prestigious conferences and corporate events worldwide, consistently receiving rave reviews for their ability to connect with and energize audiences. Whether addressing topics such as \[specific areas of expertise\], leadership, or innovation, James is dedicated to empowering individuals and organizations to reach their full potential. [LinkedIn](https://www.linkedin.com/apex-jamesmcgiven) [Facebook](https://www.facebook.com/apex-jamesmcgiven) [Instagram](https://www.instagram.com/apex-jamesmcgiven) [Twitter](https://www.twitter.com/apex-jamesmcgiven) Power Monitors, Inc. is an industry-leading product design and manufacturing firm based in Mt. Crawford, Virginia. PMI strives to solve power quality problems by listening to our customers and working with them to design and manufacture products. Total customer satisfaction is the primary goal of all PMI staff. 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