AC Microgrid Protection Coordination

Eltamaly, Ali M.; Mossa, Mahmoud A.; El‐Sayed, Abou‐Hashema M.; Elghaffar, Amer Nasr A.

doi:10.1002/9781119710905.ch8

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Faults Analysis In Transmission System1

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2022

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“…To analyze the fault, it's important to simulate the fault in three components that's positive sequence and negative sequence and zero sequences, as shown in the below Figure 2 for positive, negative and zero sequence components [10].…”

Section: Faults Analysis In Transmission Systemmentioning

confidence: 99%

A Smart Strategy for Blocking the Distance Protection Function during VT Fuse Failure

Eltamaly¹,

Elghaffar²

2022

ICA

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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 studies one 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 voltage etc. 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.

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Section: Faults Analysis In Transmission Systemmentioning

confidence: 99%