Abstract
ObjectiveLoad 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.ResultThe system automatically connects and disconnects switch to share the transformer loads. The controller was managed the load according to rules.
Highlights
Overloading protection means detecting problems with distribution transformer and isolating from the load
Fuzzy logic controller is an intelligent tool that serves as an overloading protection for distribution transformers
In order to evaluate the performance of rule based load sharing system, three various types of loads were applied at the output of the distribution transformer
Summary
Overloading protection means detecting problems with distribution transformer and isolating from the load. 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]. Overloading protection for the distribution transformer can reduce around 20% of electric power interruption [2]. There were many malfunctions distribution transformers in Dangila town Major causes of this malfunction of the distribution transformer was overloading conditions which can be prevented through overloading protection [3–5]. The practice of overloading protection in Ethiopia is low [3, 6, 7]. The efforts were not organized at the level of practice and this is due low number of researches to explore overloading protection in Ethiopia [9–11]. The aim of this study was to protect the distribution transformers in Dangila town, Ethiopia
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