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Distance relay performance as affected by capacitor voltage transformers

1974; Institution of Electrical Engineers; Volume: 121; Issue: 12 Linguagem: Inglês

10.1049/piee.1974.0321

2053-7891

Mike Hughes,

RFID technology advancements

A 3-phase capacitor-voltage-transformer simulation is described which, when used in conjunction with a conventional artificial transmission line, allows complete relaying schemes to be tested. The accuracy of the simulation is confirmed by comparison of its response with that of a full-scale capacitor voltage transformer. Conjunctive distance-relay/capacitor-voltage-transformer tests are reported showing that transient errors degrade relay performance in speed and stability. Various methods for providing a more faithful voltage signal to supply the relay circuits are discussed.