Adesina Lambe Mutalub, Abdulkareem Ademola, Ogunbiyi Olalekan, Ibrahim Oladimeji
Department of Electrical and Computer Engineering, Faculty of Engineering and Technology, Kwara State University, Malete, Nigeria.
Department of Electrical and Information Engineering, Covenant University, Sango Ota, Ogun State, Nigeria.
MethodsX. 2020 Oct 9;7:101089. doi: 10.1016/j.mex.2020.101089. eCollection 2020.
Transformer is the most important equipment used in power system. It's ensure network stability and reliability. Transformer fails over time due to several factors such as overload, poor insulation, cellulose deterioration, poor dielectric strength of the oil etc. However, transformer owners are finding it difficult to monitor the performance of distribution transformers (DT) in their place of application which results to system failure. Analyses of this distribution transformer performance required that distribution transformer be put on-load and the secondary terminals link to Power Quality and Energy Analyzer equipment (Fluke 435 Series II). This paper presents a methodology of carrying out experimental set up of on-load reliability measurements of the two distribution transformers, 500 kVA and 300 kVA, 11/0.415 kV as case study. Recommendations for the operations and maintenance engineers in charge to comply are discussed. This approach using the prescribed power quality equipment gives a reliable experimental method of evaluating the performance of distribution transformers. • Maintaining the selected distribution transformer on - load prior to and during the experiment. • The setting of experimental circuit to determine the operational parameters involving DT connection to Power Quality and Energy Analyzer (PQEA) equipment. • It utilize personal computer to download the measured parameters for graphical and statistics analysis.
变压器是电力系统中使用的最重要设备。它确保网络的稳定性和可靠性。由于过载、绝缘不良、纤维素老化、油的介电强度不佳等多种因素，变压器会随着时间推移而出现故障。然而，变压器所有者发现在其应用场所难以监测配电变压器（DT）的性能，这会导致系统故障。对该配电变压器性能进行分析需要使配电变压器处于负载状态，并将二次端子连接到电能质量和能量分析仪设备（福禄克435系列II）。本文以11/0.415 kV的500 kVA和300 kVA这两台配电变压器为例，介绍了一种进行负载可靠性测量实验设置的方法。讨论了对负责遵守规定的运维工程师的建议。这种使用规定电能质量设备的方法提供了一种评估配电变压器性能的可靠实验方法。• 在实验之前和期间使选定的配电变压器处于负载状态。• 设置实验电路以确定涉及将DT连接到电能质量和能量分析仪（PQEA）设备的运行参数。• 利用个人计算机下载测量参数以进行图形和统计分析。
