Experimental and EMTP modeling of numerical transformer protection for enhancing relay transient performance: A case study

Saad M. Saad, Naser El Naily, Abdelsalam El Haffar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper aims to present modeling and simulation of numerical differential protection for power transformer using Alternative Transient Program ATP/EMTP and its MODELS environment. The model presents the design, modeling and implementation of a numerical percentage differential relay that can be used in the protection of power system components, such as transformers, and transmission line. The relay design provides the characteristic of the percentage differential relay and evaluates its performance. To validate the performance of the modeled relay, simulations of a simplified power system in ATP/EMTP with parameters obtained from a real 30/11 KV power transformer has been carried out and compared against Siemens 7UT-612 differential relay. The advantages of modeling protection relays are to provide a good a indication of the system performance against protection system, also in addition provide indication of the relay response for different power system operating conditions such as external faults, internal faults, and switching inrush currents. Numerical differential protection in power system network gives the ability to capture and analyze the recorded transient operation conditions, and optimize relay setting due to each transformer characteristic and its location in the network.

Original languageEnglish
Title of host publication2017 9th IEEE-GCC Conference and Exhibition, GCCCE 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538627563
DOIs
Publication statusPublished - Aug 27 2018
Event9th IEEE-GCC Conference and Exhibition, GCCCE 2017 - Manama, Bahrain
Duration: May 8 2017May 11 2017

Other

Other9th IEEE-GCC Conference and Exhibition, GCCCE 2017
CountryBahrain
CityManama
Period5/8/175/11/17

Keywords

  • Power system simulation
  • Power system transients
  • Transformer

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Information Systems and Management
  • Media Technology
  • Instrumentation

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    Saad, S. M., El Naily, N., & El Haffar, A. (2018). Experimental and EMTP modeling of numerical transformer protection for enhancing relay transient performance: A case study. In 2017 9th IEEE-GCC Conference and Exhibition, GCCCE 2017 [8448174] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEEEGCC.2017.8448174