Distribution transformer performance when subjected to steep front impulses

Journal Article · Sun Apr 01 04:00:00 EDT 1990 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/61.53111· OSTI ID:6718610

Burrage, L M; Shaw, J H ^[1]; McConnell, B W ^[2]

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1. McGraw-Edison Power Systems Div., Franksville, WI (USA). Thomas A. Edison Technical Center
2. Oak Ridge National Lab., TN (USA)

The experimental method and the results of subjecting arrester protected pole type distribution transformers to the combined stresses caused by the conducted steep front impulse and rated 60 Hz voltages are described. Comparisons are drawn between these results and those of similar experiments on unenergized distribution transformers. It is concluded that tank mounted direct connected arresters provide a high degree of protection to these transformers, tank mounted externally gapped or crossarm mounted arresters may not provide sufficient protection; internal transformer insulation system failures caused by the steep front impulse do not necessarily result in immediate catastrophic failures of the transformers.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6718610
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (USA) Vol. 5:2; ISSN 0885-8977; ISSN ITPDE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100 -- Power Systems-- (1990-)
240500* -- Power Transmission & Distribution-- Environmental Aspects-- (1990-)
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
EQUIPMENT
LIGHTNING ARRESTERS
PERFORMANCE
POWER DISTRIBUTION SYSTEMS
PULSES
RADIATIONS
TRANSFORMERS