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This webinar explains CT saturation in an intuitive way using simple animations and avoiding complex math and physics. We examine symmetrical and asymmetrical saturation, remanence, the equivalent circuit of a CT, and CT excitation graphs. We also…
This white paper provides both theoretical and real-world examples with questions that can be used to gain experience with symmetrical components. The full solutions to these questions can be found in the white paper "Tutorial on Symmetrical Components, Part 2: Solutions."
Event reports have been an invaluable feature in microprocessor-based relays since the initial introduction of the technology. The days of unknown root cause for an operation, lengthy outages, or unexplained test results are largely over due to this tool and the ability of engineers and technicians to use it. We must practice to become proficient at analyzing event reports. This session provides real-world event examples, time to evaluate them, and solutions.
Event reports continue to be an invaluable feature in microprocessor-based relays. Some events are relatively straightforward to analyze, and others require experience and considerable knowledge of the power system and protective relay system in order to find root cause. This session provides several advanced real-world event examples, time to evaluate them, and solutions.
This white paper provides both theoretical and real-world examples with questions and solutions that can be used to gain experience with symmetrical components.
This paper provides a brief overview of SEL’s Time-Domain Link Technology (TiDL) and IEC 61850 as digital secondary system solutions and assesses the cybersecurity posture of each.
This paper describes how SEL software-defined networking (SDN) can significantly reduce the time and effort required to collect data and provide evidence for CIP-007-6 R1.1 and CIP-010-2 R1.1.4 compliance. It also describes how SEL SDN can assist with meeting NERC CIP-005-5 R1.1–3 requirements [3].
This white paper addresses the design considerations for modifying transformer protection at an existing nuclear station and the SEL equipment that can be used to implement that design.