Application of TLM and Cassie-Mayr Arc model on Transformer Aging and Incipient Faults Simulation

Abstract--The development of the transformer insulation failure undergoes three stages: insulation aging, incipient faults and a short circuit. This paper presents a complete scheme to simulate single-phase transformers with insulation deterioration and arcing phenomena i.e. in the first two stages. The approach incorporates Transmission Line Methods (TLM), Jiles-Atherton Hysteretic Model, Composite Cassie-Mayr Arcing Model and Dielectric Model. A small 25kVA 11kV/220V power transformer with aging and incipient faults is taken as example for simulation.

• Type: Journal
• Year: 2008
• Where: ENGL
• Authors: X. Wang, Mark Sumner, D. W. P. Thomas
• Keywords: ENGL 2008, Incipient Faults, Jiles-Atherton Hysteretic Model, Transformer Insulation Failure