Rahim submitted this question to the Ask Chris section of the RelayTraining.com website. Most line distance protection schemes assume that the system will always be able to supply enough amps to make the relays trip. However, there are many scenarios on transmission systems across the world where you could have
Silent Sentinels 1924 Excerpt #5 This excerpt from the 1924 version of Silent Sentinels discusses how electrical engineers understood how alternating-current systems (AC) operated in 1924. This is the 5th in the series. Follow these links to learn more about this series and the 1924 version of Silent Sentinels. We also cover
This question was submitted via the Ask Chris form where you can ask me relay testing questions that I can hopefully answer. Creating test plans for digital relays is often difficult because you can have ten relays with identical model numbers that have completely different functionality. Conversely, ten induction disc relays of
Silent Sentinels 1924 Excerpt #4 This excerpt from the 1924 version of Silent Sentinels discusses how electrical engineers understood how alternating-current systems (AC) operated in 1924. This is the 4th in the series. Follow these links to learn more about this series and the 1924 version of Silent Sentinels. We also cover
Silent Sentinels 1924 Excerpt #3 This excerpt from the 1924 version of Silent Sentinels discusses how electrical engineers understood how alternating-current systems (AC) operated in 1924. This is the 3rd in the series. Follow these links to learn more about this series and the 1924 version of Silent Sentinels. We also cover
The last video in our end-to-end testing series gave you a general overview of distance protection, and why we use it in modern electrical systems. It is important to know how a regular distance protection (21) scheme will react to different faults around the relays, and how those reactions are different from communication-assisted
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