Tap changer for an asymmetrical phase shifting transfomer

Author

Page, Stacey ; Johnson, Brian ; Smith, Mike ; Kampfer, Victoria ; Hines, Kirkwood ; Long, Thomas ; Browning, Zach ; Taylor, Doug

Author_Institution

Electr. & Comput. Eng., Univ. of Idaho, Moscow, ID, USA

fYear

2012

fDate

9-11 Sept. 2012

Firstpage

1

Lastpage

5

Abstract

A make before break asymmetrical tap changer for a 10 kVA three phase two core phase shifting transformer with tap changing capability was created for lab use. The tap changer limits circulating current to below 15 A when changing tap positions, has a minimum contact force of 4 psi while changing taps in 0.5 seconds, and has a 10 degree phase shift in one degree increments. The transformer consists of two cores; an excitation core and a series core and will be used as a teaching tool and research instrument in a model power system lab.

Keywords

on load tap changers; power engineering education; apparent power 10 kVA; asymmetrical phase shifting transformer; asymmetrical tap changer; changing taps; circulating current; contact force; excitation core; model power system lab; research instrument; series core; teaching tool; three-phase two-core phase shifting transformer; time 5 s; Bridge circuits; Brushes; Copper; Power transformer insulation; Resistors; Wires;

fLanguage

English

Publisher

ieee

Conference_Titel

North American Power Symposium (NAPS), 2012

Conference_Location

Champaign, IL

Print_ISBN

978-1-4673-2306-2

Electronic_ISBN

978-1-4673-2307-9

Type

conf

DOI

10.1109/NAPS.2012.6336438

Filename

6336438