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On-load measurement method for the reliability of distribution transformers.
Lambe Mutalub Adesina1, Ademola Abdulkareem2, Olalekan Ogunbiyi1
1Department of Electrical and Computer Engineering, Faculty of Engineering and Technology, Kwara State University, Malete, Nigeria.
Methodsx
|November 2, 2020
Summary
This study introduces a method for on-load reliability measurements of distribution transformers (DTs) using power quality analyzers. This approach helps engineers monitor DT performance and prevent system failures.
Area of Science:
- Electrical Engineering
- Power Systems Analysis
Background:
- Distribution transformers (DTs) are critical for power system stability and reliability.
- Transformer failures stem from factors like overload, insulation degradation, and oil deterioration.
- Monitoring DT performance in situ is challenging, often leading to system failures.
Purpose of the Study:
- To present a methodology for experimental on-load reliability measurements of distribution transformers.
- To establish a reliable method for evaluating DT performance using power quality equipment.
- To provide recommendations for operations and maintenance engineers.
Main Methods:
- Experimental setup for on-load reliability measurements of two DTs (500 kVA and 300 kVA).
- Utilizing a Power Quality and Energy Analyzer (Fluke 435 Series II) connected to the DT secondary terminals.
- Maintaining DTs on-load during experiments and analyzing downloaded operational parameters via PC.
Main Results:
- A reliable experimental methodology for evaluating on-load distribution transformer performance was established.
- The study demonstrated the practical application of power quality analysis for DT health assessment.
- Operational parameters were measured and analyzed for two case-study DTs.
Conclusions:
- The proposed method offers a dependable experimental approach for assessing distribution transformer performance.
- Effective monitoring of DTs using power quality analyzers can enhance power system reliability.
- Recommendations are provided for engineers to improve DT operations and maintenance practices.
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