Valence Electrical Training Services https://relaytraining.com/ High Voltage Electrical Training Thu, 07 Aug 2025 18:17:43 +0000 en-US hourly 1 https://relaytraining.com/wp-content/uploads/2023/01/Icon.png Valence Electrical Training Services https://relaytraining.com/ 32 32 66881482 How Many Phase Angle Systems Are Used in The Protection and Control World? https://relaytraining.com/how-many-phase-angle-systems-are-used-in-the-protection-and-control-world/ https://relaytraining.com/how-many-phase-angle-systems-are-used-in-the-protection-and-control-world/#respond Wed, 18 Jun 2025 17:22:11 +0000 https://relaytraining.com/?p=20443 This should be an easy question… A-Phase is shown on this phasor diagram at 0 degrees. What angle would be used to describe B-Phase? Here’s another question about the same phasor diagram. What Phase rotation is depicted in that phasor diagram? If your drawings do have a phase rotation diagram, it might look like the […]

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]]> https://relaytraining.com/how-many-phase-angle-systems-are-used-in-the-protection-and-control-world/feed/ 0 20443 What Do You Want to Know About Directional OverCurrent Testing? https://relaytraining.com/what-do-you-want-to-know-about-directional-overcurrent-testing/ https://relaytraining.com/what-do-you-want-to-know-about-directional-overcurrent-testing/#respond Tue, 17 Jun 2025 21:38:51 +0000 https://relaytraining.com/?p=20436 We’re about to start production on our upcoming Online Relay Testing Seminar about Directional Overcurrent Testing. Here’s your chance to help us decide what to include in the seminar! Fill out the form below to let us know what topics you’d like us to cover in this online seminar. Thanks for your help! Chris P.S. […]

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]]> https://relaytraining.com/what-do-you-want-to-know-about-directional-overcurrent-testing/feed/ 0 20436 Rick Ashton’s Relay 101 Calculators https://relaytraining.com/rick-ashtons-relay-101-calculators/ https://relaytraining.com/rick-ashtons-relay-101-calculators/#respond Tue, 17 Dec 2024 03:30:39 +0000 https://relaytraining.com/?p=19489 Rick Ashton has been passionately teaching people how to apply math to relay testing for decades and I was lucky enough to sit in on one of his relay classes. He was very generous with his expertise and had several free calculators on his relaytech.com website and inexpensive Ipad apps. Rick retired and passed these […]

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]]> https://relaytraining.com/rick-ashtons-relay-101-calculators/feed/ 0 19489 The New How to Test Voltage Protection Online Training Seminar is Now in Post-Production https://relaytraining.com/new-how-to-test-voltage-protection-online-training-seminar-is-now-in-production/ https://relaytraining.com/new-how-to-test-voltage-protection-online-training-seminar-is-now-in-production/#comments Sun, 02 Apr 2023 19:16:04 +0000 https://relaytraining.com/?p=18444 All of the videos for this seminar have been recorded and we’re currently sending pre-release discounts to students, customers, and people on our mailing list before we release it to the public in March 2025: Lesson 1:) Introduction to Voltage Transformers (PTs or VTs) Lesson 2: How to Test OverVoltage (59-Element) Protection Inside an IED/Relay […]

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]]> https://relaytraining.com/new-how-to-test-voltage-protection-online-training-seminar-is-now-in-production/feed/ 1 18444 Get NETA CTDs for the How to Test Overcurrent Relays: An Introduction to Protective Relaying Online Seminar (32 CTDs) https://relaytraining.com/get-neta-ctds-for-the-how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-32-ctds/ https://relaytraining.com/get-neta-ctds-for-the-how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-32-ctds/#comments Sun, 23 Oct 2022 16:42:58 +0000 https://relaytraining.com/?p=18039 The InterNational Electrical Testing Association (NETA at http://www.netaworld.org/) just informed us that our latest online training seminar: How to Test Overcurrent Relays: An Introduction to Protective Relaying Online Seminar , has been approved for 32 Continuing Technical Development Credits (NETA CTDs).  This means that, once again, all of our courses are pre-approved for NETA CTDs. The InterNational Electrical […]

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]]> https://relaytraining.com/get-neta-ctds-for-the-how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-32-ctds/feed/ 2 18039 How to Test Overcurrent Relays: An Introduction to Protective Relaying Online Seminar – Final 2022 Update https://relaytraining.com/how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-final-2022-update/ https://relaytraining.com/how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-final-2022-update/#respond Mon, 20 Jun 2022 20:30:48 +0000 https://relaytraining.com/?p=17684 All of the main videos of Lesson 6: How to Test Overcurrent Elements in IEDs have been recorded and are in the editing process! That means that all of the main videos have been recorded!! Here are the topics in this lesson: What Overcurrent Information You Need to Test Overcurrent Elements Inside an IED How […]

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]]> https://relaytraining.com/how-to-test-overcurrent-relays-an-introduction-to-protective-relaying-online-seminar-final-2022-update/feed/ 0 17684 The Complete Guide to the Square Root of Three in Power Calculations https://relaytraining.com/the-complete-guide-to-the-square-root-of-three-in-power-calculations/ https://relaytraining.com/the-complete-guide-to-the-square-root-of-three-in-power-calculations/#comments Mon, 17 Aug 2020 21:16:00 +0000 https://relaytraining.com/?p=16498 Zach Stone, P.E. contacted me after I (Chris Werstiuk writing right now) posted my recent “Understanding the Great Leading vs. Lagging Power Debate” post because I had incorrectly defined Apparent Power. Thanks to his keen eye and knowledge on the subject, no-one who purchased The Relay Testing Handbook: Generator Relay Protection Testing ever saw my […]

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]]> https://relaytraining.com/the-complete-guide-to-the-square-root-of-three-in-power-calculations/feed/ 6 16498 New Online Seminar for Overcurrent Testing is Now in Production https://relaytraining.com/new-online-seminar-overcurrent-testing-now-production/ https://relaytraining.com/new-online-seminar-overcurrent-testing-now-production/#comments Sun, 19 Jul 2020 17:55:00 +0000 https://relaytraining.com/?p=12122 We should have started this several months ago, but we’re on task now and the amount of content has already doubled since we first envisioned what this seminar would look like. It looks like we’ll cover over 40 hours of content for this online seminar about overcurrent testing. If the How to Test Protective Relays […]

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]]> https://relaytraining.com/new-online-seminar-overcurrent-testing-now-production/feed/ 9 12122 Testing Loss-of-Field / Loss-of-Excitation Elements (40) https://relaytraining.com/testing-loss-of-field-loss-of-excitation-elements-40/ https://relaytraining.com/testing-loss-of-field-loss-of-excitation-elements-40/#comments Mon, 13 Jul 2020 19:34:00 +0000 https://relaytraining.com/?p=16261 “Why did my 40-Element test fail?” is probably the most common question I get asked about generator protection. The first question I ask is, “What kind of fault are you trying to simulate?” The second question is, “Where are the test currents in relation to their voltages?” If you truly understand the theory behind Loss-of-Field […]

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]]> https://relaytraining.com/testing-loss-of-field-loss-of-excitation-elements-40/feed/ 10 16261 Understanding the Great Leading vs. Lagging Power Debate https://relaytraining.com/understanding-the-great-leading-vs-lagging-power-debate/ https://relaytraining.com/understanding-the-great-leading-vs-lagging-power-debate/#comments Tue, 23 Jun 2020 15:10:00 +0000 https://relaytraining.com/?p=16222 I once watched two engineers/technicians argue for two hours about what power definitions should be displayed on a HMI interface. One of them argued that VARs were being EXPORTED during lagging conditions, so a lagging current should be shown as POSITIVE VARS and Power Factor! The other argued that VARs were IMPORTED during lagging conditions, […]

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]]> https://relaytraining.com/understanding-the-great-leading-vs-lagging-power-debate/feed/ 13 16222 How to Test Breaker Failure Element Logic https://relaytraining.com/how-to-test-breaker-failure-element-logic/ https://relaytraining.com/how-to-test-breaker-failure-element-logic/#respond Tue, 25 Jun 2019 11:02:22 +0000 https://relaytraining.com/?p=13456 I presented a “Testing Breaker Failure Schemes” paper at the 36th Annual Hands-On Relay School in 2019. This post is the second part of the paper that will give step-by-step test plans to help you test Breaker Failure Schemes. I highly recommend you read: 1.   Testing Breaker Fail Scheme Logic It has often been argued […]

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]]> https://relaytraining.com/how-to-test-breaker-failure-element-logic/feed/ 0 13456 How to Test Breaker Failure Schemes https://relaytraining.com/how-to-test-breaker-failure-schemes/ https://relaytraining.com/how-to-test-breaker-failure-schemes/#respond Mon, 27 May 2019 20:58:24 +0000 https://relaytraining.com/?p=13407 I presented a “Testing Breaker Failure Schemes” paper at the 36th Annual Hands-On Relay School in 2019. This post is the second part of the paper that will give step-by-step test plans to help you test Breaker Failure Schemes. I highly recommend you read Part 1 of the series first at “Introduction to Breaker Failure […]

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]]> https://relaytraining.com/how-to-test-breaker-failure-schemes/feed/ 0 13407 Introduction to Breaker Failure Schemes (50BF) https://relaytraining.com/introduction-to-breaker-failure-schemes-50bf/ https://relaytraining.com/introduction-to-breaker-failure-schemes-50bf/#comments Mon, 29 Apr 2019 20:19:28 +0000 https://relaytraining.com/?p=13400 I presented a “Testing Breaker Failure Schemes” paper at the 36th Annual Hands-On Relay School in 2019. Here’s the first part of the paper that will give you a basic introduction to Breaker Failure Schemes: 1.   Introduction The power system is a delicate balance between load and generation. We usually think that brownouts and blackouts […]

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]]> https://relaytraining.com/introduction-to-breaker-failure-schemes-50bf/feed/ 2 13400 The Over-Excitation Testing (24) Chapter is Complete. What Should be in the Synchronizing Chapter (25)? https://relaytraining.com/the-over-excitation-testing-24-chapter-is-complete-what-should-be-in-the-synchronizing-chapter-25/ https://relaytraining.com/the-over-excitation-testing-24-chapter-is-complete-what-should-be-in-the-synchronizing-chapter-25/#comments Sat, 06 Apr 2019 16:23:47 +0000 https://relaytraining.com/?p=13346 The first draft of the Over-Excitation (24-Element) Chapter is finally complete and off to the editors. We cover the theory and step-by-step testing procedures over 60 pages! You can see all the topics and figures covered at the end of this post. Now I’m ready to start the Synchronizing (25) chapter. Add a comment below […]

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]]> https://relaytraining.com/the-over-excitation-testing-24-chapter-is-complete-what-should-be-in-the-synchronizing-chapter-25/feed/ 1 13346 36th Annual Hands-On Relay School https://relaytraining.com/36th-annual-hands-on-relay-school/ https://relaytraining.com/36th-annual-hands-on-relay-school/#respond Mon, 11 Mar 2019 04:18:36 +0000 https://relaytraining.com/?p=13215 I’ll be presenting the “Testing breaker Failure Schemes” open lecture at the 36th Annual Hands-On Relay School this year. I haven’t written anything about Breaker Failure protection before and here’s the synopsis for the paper: “Relay testers who want to test breaker failure (50BF) schemes should understand how 50BF schemes are applied, how to perform […]

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