(Received: October 30, 2011; Accepted: December 8, 2011) Abstract: This paper presents a novel technique for transformer differential protection to prevent incorrect operation due to inrush current. The proposed method in this paper is based on time-frequency transform known as the Wavelet transform. The discrete Wavelet transform is used for analysis the differential current signals in time an...

The IPv6 privacy extension introduces temporary addresses to protect against address-based correlation, i. e., the attribution of different transactions to the same origin using addresses, and is considered as state-of-the-art mechanism for privacy protection in IPv6. In this paper, we scrutinize the extension’s capability for protection by analyzing its algorithm for temporary address generati...

The restricted earth fault (REF) relay is a type of differential protection which is used for detection of internal ground faults of power transformers. But, during external faults and transformer energization conditions, the probability of current transformer (CT) saturation increases. Thus, the spurious differential current due to CT saturation, can lead to REF relay maloperation. In this pap...

Internal Turn-Turn faults (TTF) are the most common failures in power transformers, which could seriously reduce their life expectancy. Although common protection schemes such as current-baseddifferential protection are able to detect some of the internal faults, some other minor ones (such as TTFs andshort circuit near the neutral point) cannot be detected by such schemes. Likewise, these rela...

Within the framework of radiation protection or internal radiotherapy, one of the major stakes is to determine in a most realistic possible way the dose received by every patient. In this purpose, a tool called OEDIPE, French acronym for “tool for personalized internal dose assessment”, was developed at IRSN associating numerical voxelized phantoms, created with anatomical images, and Monte Car...

The Fukushima Dai-ichi Nuclear Power Plant accident resulted in a release of radionuclides to the environment and a wide range of radioactive contamination. The national government and local governments implemented urgent protective actions to reduce internal exposure from ingestion of food and tap water or inhalation of radionuclides after the accident. There has been some concern in evaluatin...

Converging lines of evidence have supported a role for the nucleus basalis magnocellularis (NB) in attentional mechanisms; however, debate continues regarding the role of the medial septum in behavior (MS). Recent studies have supported a role for the septohippocampal system in the online processing of internally generated cues. The current study was designed to investigate a possible double di...