WebThe SEL-387A is a low-cost solution for two-winding transformer protection. Beyond Typical Transformer Protection—Protect reactors, generators, large motors, and other … Web25/33MVA 69/23kV Delta-Wye Transformer on SEL-387A Relay Figure 1. Transformer Vector Group and CT to Relay Connection We will start the transformer differential protection calculation with the identification of the transformer vector group. For this example, we have a 25/33MVA 69/23kV Delta-Wye Transformer with vector group, Dyn1.
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WebFeb 18, 2002 · Home - Sertec Relay Services WebApr 30, 2024 · The SEL-387A Relay has two optional REF elements. Restricted Earth Fault Protection Transformer Temperature Metering Metering and Alarm Functions Sequential … fox sports update
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Web1 HV SHUNT REACTOR SECRETS FOR PROTECTION ENGINEERS Z. Gajić, B. Hillström F. Mekić ABB Sweden ABB Inc. Västerås, Sweden Allentown, PA 18106 Abstract: Viewed in the substation yard, an HV, oil immersed, shunt reactor does not differ much from a power transformer, but in reality it is not that simple. WebDESCRIPTION The L387A is a very low drop voltage regulator in aPentawatt package specially designed to pro vide stabilized 5V supplies in consumer and in dustrial … fox sports tv nfl pregame show live