Open AccessAnalysis of a Verifying Method of Consistency Between CT/ PT Polarity and Directional Protective Relaying
Author(s) -
Meng Wang
Publication year - 2018
Publication title -
modern electronic technology
Language(s) - English
Resource type - Journals
eISSN - 2591-7129
pISSN - 2591-7110
DOI - 10.26549/met.v2i1.755
Subject(s) - correctness , polarity (international relations) , reliability engineering , transformer , workload , relay , computer science , test method , voltage , engineering , power (physics) , electrical engineering , mathematics , statistics , genetics , physics , quantum mechanics , cell , biology , operating system , programming language
The coordination correctness of Nuclear power plant current transformer (CT) / voltage transformer (PT) polarity and relay protection is often verifed through the dynamic test on the unit no load / load operating conditions. This paper proposes a test method to prevent and circumvent the failure of the dynamic test abnormality caused by the static power test before the plant power is applied and the whole group is started. Reduce the dynamic test workload and test diffculty, to ensure that the dynamic test safety risk control and control in the state.