Current Transformer Performance study Using Software Tools
نویسنده
چکیده
Power system protective relaying systems are striving to meet the demands of systems which are ever increasing in complexity. . High-speed digital relays must make decisions while the power system is still in transition. Understanding the operation and performance of microprocessor based relays requires new engineering tools. Current transformer (CT) and relay modeling are practical tools to evaluate protection equipment performance. Models for instrument transformers are especially important for studying ct saturation, ferroresonance phenomena, harmonics, and their effects on the performance of protective relaying. This paper presents some software tools (ATP-EMTP,MODEL-TACS, TOP and Mathcad) that are used to investigate and to understand the transient events to better understand and visualize the response of digital relay models during transient conditions
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