Title :
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
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;
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
DOI :
10.1109/NAPS.2012.6336438
