Abstract
Core and copper losses of a distribution transformer increase in the presence of harmonics and distortion. In most of the cases, an indication of total harmonic distortion is known. Expressions for the transformer core and winding losses as a function of the total harmonic distortion are obtained experimentally using a harmonic generator, a 10 kVA 7200/120 V distribution transformer, and a digital oscilloscope equipped with digital processing software. The selection of the harmonics is based on actual recorded data. A thermal model of a distribution transformer is used to evaluate the temperature rise both with and without harmonics. The evaluation indicates that there is a significant increase in the operating temperature in the presence of high order harmonics, as compared with the operating temperatures when no harmonics are present. This paper presents the nature of the actual recorded data, the method of evaluation, and the results.
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.
