Current and voltage instrument transformers are essential elements of the power system.
They work like transformers but do not transmit power. Their task is to accurately transform …

Current-transformer (CT) saturation threatens accurate discrimination between internal fault
current and magnetizing inrush current of a transformer and endangers the proper operation …

Based on an enhanced topological representation of the transformer core, flux air paths, and
tank, a duality-based transformer model is proposed for low and mid-frequency transients …

A current transformer (CT) is accurately modeled for representation of the CT saturation
effects on digital protective relays. Simulation studies performed in the PSCAD/EMTDC …

This paper investigates impacts of various formations of hysteresis on the stability domain of
ferroresonance modes of a voltage transformer (VT). Based on four different hysteretic and …

Current-transformer (CT) saturation phenomenon impacts the performance of the current-
based protective relays and leads them to malfunction; so detecting and resolving such …

In this paper, a three-phase transformer model is developed to be suitable for slow transient
and power-quality studies. The proposed model takes into account the eddy currents, the …

Increased ratio error of capacitor voltage transformers (CVTs) has been recently
encountered in several substations in Iran. The results of the performed diagnostic tests …

This paper introduces a proper model for ferromagnetic core which includes hysteresis,
saturation, eddy current losses, and anomalous losses. This model can generate …

摘要提出一种以Fe3O4 磁性纳米粒子为包层的微环谐振器的集成光波导电流传感器,
阐述了其基本原理和制备方法. 被测电流所产生的交变磁场, 会使得Fe3O4 …