Abstract
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.
Highlights
In cases where the network is very large, pre-inspection is required to know the source of supply to the substation, healthiness of both the high tension and low tension lines, Neatness of the Substation, Proper connection of substation equipment such as cable, cable lugs, bushings, earthing, feeder pillar etc., and the availability of the 33 kV or 11 kV feeder that feeds the substation of the distribution transformer selected for the experiment
Transformer operational performance measurement should be considered a routine assignment for power utility company, manufacturing industries, corporate organisations and other private owners of transformer
This paper has presented an On-load measurement methods for the reliability of distribution transformers
Summary
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). 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. Method name: Distribution Transformer Reliability Measurement Experiment Keywords: Cellulose deterioration, Energy analyzer, Experiment, Fluke, Insulation, Network reliability, Outages, Power quality Article history: Received 30 June 2020; Accepted 2 October 2020; Available online 9 October 2020
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
