The modeling of inrush currents that occur upon energization of a transformer is a challenge
for Electromagnetic Transients Programs due to limitations in available transformer models …

In this thesis a general purpose transformer model for low and medium frequency transient
studies is developed and verified. The inrush current phenomena during no-load …

A topology-correct transformer model, which covers core operation under heavy saturation
conditions, is presented. A method of accounting for magnetic fluxes outside the core and …

The inrush current generated by power transformer energization (TE) causes voltage sag of
the nearby bus, the typical residual voltage of the voltage sag caused by transformer …

Transformer inrush currents can lead to a reduction of transformer lifetime and inadvertent
tripping of relays. This paper investigates a novel approach for minimizing the inrush current …

Proper use of phase-controlled switching technology by controlling the making or breaking
of the circuit breaker (CB) at predetermined phase angles of current or voltage can improve …

摘要大型电力变压器在各种检测以及运行之后, 由于其铁心结构的封闭性以及铁磁材料固有的磁
滞现象, 会在铁心中留有剩磁. 剩磁的存在将加速电力变压器铁心的磁化饱和, 产生励磁涌流 …

When a transformer is de-energized, the magnetic core material will contain a certain
amount of residual magnetic flux. This flux may intensify saturation and lead to high transient …

This article presents the harmonic analysis of transformer inrush currents in offshore power
systems. Offshore production facilities interconnected by subsea cables are becoming …

Shortcomings of the classical approach in describing magnetization processes in grain-
oriented transformer steel is analyzed. A noniterative method of accounting for hysteresis …