An extended magnetizing inrush restraint method applied to digital differential relays for transformer protection

Sanaye‐Pasand, M.; Zangiabadi, M.; Fereidunian, Alireza

doi:10.1109/pes.2003.1270933

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Fuzzy logic controller is an intelligent tool that serves as an overloading protection for distribution transformers. It has logical rules which protects distribution transformers against overloading conditions [1].…”

Section: Introductionmentioning

confidence: 99%

Automatic load sharing of distribution transformer for overload protection

Nebey

2020

BMC Res Notes

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Objective: Load sharing provides sufficient protection to distribution transformer under overloaded conditions. Due to overload on transformer, the efficiency drops and windings get overheated and may burn. By sharing a load current on transformer for each phase the transformer was protected. Therefore, the objective of this study was to protect transformers from overloaded conditions by sharing the load. Result: The system automatically connects and disconnects switch to share the transformer loads. The controller was managed the load according to rules.

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Section: Introductionmentioning

confidence: 99%

Automatic load sharing of distribution transformer for overload protection

Nebey

2020

BMC Res Notes

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“…Traditional second harmonic restraining technique can face security problems as the level of the second harmonic may drop below the reasonable threshold setting (around 20%) permanently or for several power system cycles during magnetizing inrush condition. This is particularly true for modern transformers with magnetic cores built with improved materials [2].…”

mentioning

confidence: 99%

Accelerate protection scheme in integrated protection system

Zhang

Yip

et al. 2011

2011 2nd IEEE PES International Conference and Exhibition on Innovative Smart Grid Technologies

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Transformer is one of the most important elements in power system, and current differential protection has been the main protection technique for transformer unit. This protection technique, however, suffers a low sensitivity or reliability due to the problems such as CT saturation and transformer magnetizing inrush. Based on digital substation system, studies have found that the fault generated electric quantities can not only be used by the relay to achieve the line protection but also used for developing transformer protection techniques. The protection system can accelerate trip time if fault happen. The results from simulation test show that the new method is with simple principle and good reliability.

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An improved transformer percentage restraint method based on transmission line information

Zhang

et al. 2009

2009 International Conference on Sustainable Power Generation and Supply

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An extended magnetizing inrush restraint method applied to digital differential relays for transformer protection

Cited by 4 publications

References 10 publications

Automatic load sharing of distribution transformer for overload protection

Automatic load sharing of distribution transformer for overload protection

Accelerate protection scheme in integrated protection system

An improved transformer percentage restraint method based on transmission line information

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