Impact of low voltage bushings diameter on single-phase distribution transformers losses

Olivares-Galvan, JC; Magdaleno-Adame, S; Campero-Littlewood, E; Georgilakis, PS; Escarela Perez, R

dc.contributor.author	Olivares-Galvan, JC	en
dc.contributor.author	Magdaleno-Adame, S	en
dc.contributor.author	Campero-Littlewood, E	en
dc.contributor.author	Georgilakis, PS	en
dc.contributor.author	Escarela Perez, R	en
dc.date.accessioned	2014-03-01T02:46:50Z
dc.date.available	2014-03-01T02:46:50Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/32881
dc.subject	Efficiency	en
dc.subject	Finite element method	en
dc.subject	Load losses	en
dc.subject	Low-voltage conductor	en
dc.subject	Pole-mounted distribution transformer	en
dc.subject	Tank wall	en
dc.subject.other	Diameter reduction	en
dc.subject.other	Empirical approach	en
dc.subject.other	Finite Element	en
dc.subject.other	Finite element models	en
dc.subject.other	High currents	en
dc.subject.other	Load loss	en
dc.subject.other	Low voltages	en
dc.subject.other	Low-voltage	en
dc.subject.other	Manufacturing cost	en
dc.subject.other	Phase distribution	en
dc.subject.other	Reduction of diameter	en
dc.subject.other	Single-phase transformers	en
dc.subject.other	Tank walls	en
dc.subject.other	Bushings	en
dc.subject.other	Computer simulation	en
dc.subject.other	Cost reduction	en
dc.subject.other	Electric load loss	en
dc.subject.other	Electric machinery	en
dc.subject.other	Manufacture	en
dc.subject.other	Poles	en
dc.subject.other	Steel tanks	en
dc.subject.other	Finite element method	en
dc.title	Impact of low voltage bushings diameter on single-phase distribution transformers losses	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICELMACH.2010.5607942	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICELMACH.2010.5607942	en
heal.identifier.secondary	5607942	en
heal.publicationDate	2010	en
heal.abstract	This paper analyses steel tank wall losses of pole-mounted single-phase distribution transformers due to high currents crossing through the bushing holes of the low voltage terminals, and evaluates the impact of the holes diameter on load losses. The study also includes a description and comparison of analytical and empirical approaches used by other authors. The analysis was performed using simulations obtained by finite element method. The finite element model was validated reproducing results found in literature and simulations obtained for a 37.5kVA single-phase transformer model. The study was motivated by a reduction of diameter (from 4.6cm to 3.6cm) in the bushings supplied by manufacturers that represented a cost reduction. Results show no appreciable change of load losses with 1cm diameter reduction and consequently the decrease in manufacturing cost means a beneficial impact. ©2010 IEEE.	en
heal.journalName	19th International Conference on Electrical Machines, ICEM 2010	en
dc.identifier.doi	10.1109/ICELMACH.2010.5607942	en