Title :
Transformer Winding Connections for Practical Industrial Applications
Author :
Liang, Xiaodong ; Jackson, William ; Laughy, Ryan
Author_Institution :
Edmonton Product Center, Edmonton
Abstract :
This paper investigates different transformer winding connections on industrial electrical networks. Calculation of electrical parameters such as voltage, current and KVA for various winding types are derived mathematically. "Phase multiplication" is an effective harmonic mitigation technique using phase-shifting transformers. The design of a specified phase-shifting angle and calculation of voltage and current distribution in a polygon winding are proposed. Commonly used transformer connections including delta-delta and wye-wye are discussed in detail. Problems related to these winding connections in industrial distribution systems are addressed, and corresponding solutions are proposed. Transformer grounding is also investigated in this paper.
Keywords :
distribution networks; earthing; industrial power systems; power transformers; transformer windings; current distribution; delta-delta connection; harmonic mitigation technique; industrial distribution systems; industrial electrical networks; phase multiplication; phase-shifting transformers; polygon winding; transformer grounding; transformer winding connections; voltage distribution; wye-wye connection; Circuit faults; Current distribution; Electrical equipment industry; Grounding; Iron; Power system harmonics; Power transformers; Rectifiers; Transformer cores; Windings; Transformer winding connections; circulation current; grounding; neutral instability; polygon winding; zigzag winding;
Conference_Titel :
Petroleum and Chemical Industry Technical Conference, 2007. PCIC '07. IEEE
Conference_Location :
Calgary, Alta.
Print_ISBN :
978-1-4244-1140-5
Electronic_ISBN :
0090-3507
DOI :
10.1109/PCICON.2007.4365778
