Want to get the best relay training possible? Sign up for the 35th annual Hands-On Relay School in Pullman, Washington happening March 12-16, 2018. They fill up fast, so you should sign up today! https://cm.wsu.edu/ehome/index.php?eventid=268868& This is not a paid promotion. We did not, and will not, receive any financial
If you’ve read anything about relay testing written in the last ten years or so, you’ll see a pattern; No-one is talking about the traditional pickup and timing tests most relay testers (and most automated relay testing software) use to test relays. You are much more likely to read terms
Meter tests on protected relays connected to open-delta connected PTs can be very confusing. I know I spent a LOT of time trying to figure out the values reported by my first open-delta connected relay during my first simple meter test. The voltage and current phasors were completely out of
Traditional line distance relay testing procedures (MTA, Reach, and Timing) are a great way to test electro-mechanical relays and learn how line impedance relays operate; but they are inefficient, ineffective, and frustrating when applied to modern digital relays. This post will show you why your traditional tests are probably failing,
We need your help with our next online seminar about overcurrent relay testing. What would you like to see in an online seminar about overcurrent relays? Our current rough outline includes: Why Do We Use Overcurrent Protection? Introduction to Fault Studies Calculating Maximum Current With an Infinite Buss Introduction to
[one_half_first]The Relay Testing Handbook: Principles and Practice had been more than a decade in the making when it was published in 2012. It contained everything I knew about relay testing that could be included in a book format. The response from relay testers has been incredible and I’d like to thank
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