Results 31 to 40 of about 41,086 (208)
Transformer Core Saturation Fault Analysis using Current Sensor Signals and Thermal Image Features
Advances in Electrical and Computer Engineering, 2023 Transformer faults are identified and classified using current sensor signals. Transformer core saturation detection is challenging using current sensor signals due to overlapping of load-based faults such as overload, short circuit, grounding faults ...
VIDHYA, R. +2 more
doaj +1 more source
Correction of saturated current from measurement current transformer
IET Electric Power Applications, 2013 The suggested study presents an easy and effective way to compensate for the distorted secondary current of measurement‐type current transformers (CTs). The suggested compensating algorithm is based on estimating the magnetising current from a Fröhlich hysteresis approach.
openaire +1 more source
Saturation current spikes eliminated in saturable core transformers [PDF]
, 1971 Unsaturating composite magnetic core transformer, consisting of two separate parallel cores designed so impending core saturation causes signal generation, terminates high current spike in converter primary circuit.
Schwarz, F. C.
core +1 more source
Dual Channel Control with DC Fault Ride Through for MMC-based, Isolated DC/DC Converter [PDF]
, 2017 This study is sponsored by the Engineering and Physical Sciences Research Council (EPSRC) grant no EP/K006428/1, 2013.D. Jovcic and H. Zhang are with the School of Engineering, University of Aberdeen, AB24 3UE, U.K.
Jovcic, Dragan, Zhang, Huibin
core +1 more source
AlgorithmsPower transformers are vital and costly components in power systems, essential for ensuring a reliable and uninterrupted supply of electrical energy. Their protection is crucial for improving reliability, maintaining network stability, and minimizing ...
Qusay Alhamd +3 more
doaj +1 more source
Waveform dissimilarity factor-based protection for main transformers in wind farms
Energy Reports, 2023 Current differential protection (CDP) is widely used as main protection for transformers due to its high reliability and selectivity. Owing to non-fundamental frequency current, magnetizing inrush and current transformer (CT) saturation, CDP may undergo ...
Yingyu Liang +3 more
doaj +1 more source
Transformer regulated self-stabilizing chopper [PDF]
, 1969 A self-stabilizing voltage regulator is described. Direct current voltage regulation employing a series transistor rendered conductive during various portions of a cycle is controlled by saturation of an autotransformer. The constant volt-second capacity
Raposa, F. L.
core +1 more source
Current Transformer Saturation Detection Using Gaussian Mixture Models
Journal of Applied Research and Technology, 2013 AbstractThis paper presents a novel current transformer (CT) saturation detection approach based on Gaussian Mixture Models (GMMs). High accuracy is the advantage of this method. GMMs are trained with secondary current of CT. The appropriate performance of the proposed method is tested by simulation of different fault conditions in PSCAD/EMTDC software.
Haji, M. Moghimi +2 more
openaire +1 more source
, 1991 A non-intrusive DC current monitor is presented which emulates the theoretical operation of an AC transformer. A conductor, carrying the current to be measured, acts as the primary of a DC current transformer. This current is passed through the center of
Canter, Stanley
core +1 more source
Elimination of current spikes in buck power converters [PDF]
, 1981 Current spikes in a buck power converter due to commutating diode turn-off time are eliminated by using a tapped inductor in the converter with the tap connected to the switching transistor. The commutating diode is not in the usual place, but is instead
Mclyman, W. T.
core +1 more source