Ferroresonant overvoltages in grounded wye-wye padmount transformers with low-loss silicon-steel cores

Journal Article · Thu Jul 01 00:00:00 EDT 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.252691· OSTI ID:6089301

Walling, R A ^[1]; Barker, K D ^[2]; Compton, T M ^[3]; Zimmerman, L E ^[4]

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1. GE Industrial and Power Systems, Schenectady, NY (United States). Power Systems Engineering Dept.
2. Virginia Power Co., Richmond, VA (United States)
3. Duke Power Co., Charlotte, NC (United States)
4. PSI Energy, Plainfield, IN (United States)

Reduced no-load losses have resulted in increased susceptibility to ferroresonance of modern grounded wye-wye three-phase distribution transformers using five-leg silicon-steel wound cores. This paper describes the results of an extensive test program which determined that over voltages are directly related to the ratio of capacitive susceptance divided by core losses and the conventional use of rated exciting current can be a misleading indicator of ferroresonance susceptibility.

• OSTI ID: 6089301
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:3; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
ELECTRICAL EQUIPMENT
ELECTRICAL TRANSIENTS
EQUIPMENT
FERROMAGNETIC RESONANCE
MAGNETIC RESONANCE
OVERVOLTAGE
POWER DISTRIBUTION SYSTEMS
RESONANCE
SURGES
TRANSFORMERS
TRANSIENTS
VOLTAGE DROP