Comparison of Over Current Relay Characteristics in Electric Power Protection Systems: A Comparison of Theory and Practice

被引：0

作者：

Wardhana, Alex Sandria Jaya ^{[1
]}

Damarwan, Eko Swi ^{[1
]}

Bachrun, Muhammad Al Azis ^{[2
]}

Hakim, Muhammad Luthfi ^{[1
]}

机构：

[1] Electrical Engineering Education Dept., Universitas Negeri Yogyakarta

[2] North Carolina State University, North Carolina

来源：

Journal of Engineering Science and Technology Review | 2025年 / 18卷 / 02期

关键词：

Comparison of Characteristics; Inverse Time; Over Current relay; Protection System;

D O I：

10.25103/jestr.182.21

中图分类号：

TM7 [输配电工程、电力网及电力系统];

学科分类号：

080802 ;

摘要：

One of the most important protection elements in the power system is the Over Current Relay (OCR). This study aims to determine the differences in the characteristics of OCR in terms of theoretical based on the IEC 60255 standard compared to the results of practical trials using Relay SEPAM 1000+ T20. When the results of practical trials, current injection is carried out in the circuit. OCR characteristics that will be compared are standard inverse time, very inverse time, long inverse time, and extremely inverse time. The results showed that the average percentage difference between the calculation and theories on each OCR characteristic is less than 5%. The percentage difference in the standard inverse characteristic is 1.83%, Very inverse is 3.67%, Long time inverse is 1.57%, and extremely inverse is 4.47%. It can be concluded that there is no significant difference in OCR characteristics theoretically and practically. © (2025), (International Hellenic University School of Science and Technology). All rights reserved.

引用

页码：172 / 177

页数：5

共 27 条

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