TITLE:
A Smart Strategy for Blocking the Distance Protection Function during VT Fuse Failure
AUTHORS:
Ali M. Eltamaly, Amer Nasr A. Elghaffar
KEYWORDS:
Protection System, High Voltage, Distance Protection, Power System Quality
JOURNAL NAME:
Intelligent Control and Automation,
Vol.13 No.3,
November
30,
2022
ABSTRACT: Saving the electrical power system in stable condition is considered as one of important challenges to avoid any failure of high voltage equipment. Additionally, with the increasing off the critical loads, it’s very important to use the accurate protection system that can deal with any abnormal condition. This paper studiesone of critical cases that can effect on the coordination of the protection system with the faults during fuse fail condition. Over Head transmission line (OHTL) is the most part in the power system that faces the disturbances, which can be protected by multi-protection functions as line differential function, distance protection function, over current, earth fault, over/under voltageetc.The distance protection function is depending on the line voltage and the load current to calculate the load zone. This paper aims to prevent the falls operation of distance protection function during voltage transformer fuse failure condition.