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High-Precision, Wide-Ratio, Self-Balancing Current Comparator. [PDF]
Sensors (Basel)Wang X +6 more
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Cryogenic Dielectrics and HTS Power Apparatus: Research at the University of Southampton
, 2005 Chen, G +3 more
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A current transformer modeling
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 2002This paper presents the modeling of a current transformer by various methods with the FLUX3D software. The technique used is based on the finite element method coupled with electric circuits. A magnetic scalar potential reduced versus T0 formulation (T0ϕ−ϕ) taking into account the electric circuits with an air‐gap is used for this purpose.
Le Floch, Yann +4 more
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Clamp current transformers for noninvasive calibration of current transformers
2016 IEEE International Instrumentation and Measurement Technology Conference Proceedings, 2016This paper deals with a noninvasive calibration system of current transformers in electrical power systems. The proposed system requires precise current sensors located on the primary and the secondary side of the transformer. Current sensors were designed as current transformers with a nanocrystalline magnetic core.
Karel Draxler +4 more
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Current transformer performance for inrush current in power transformers
Electric Power Systems Research, 1988Abstract A mathematical model has been developed for a current transformer to predict the transient performance during switch-in of a power transformer with residual flux. Typical 50 - 100 - 200/1 and 300/1 current transformers have been simulated and the secondary current response has been computed for different values of the current transformer ...
B.T. Desai, H.O. Gupta, M.K. Vasantha
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1982 IEEE Power Electronics Specialists conference, 1982
A general purpose, magnetically isolated current sensor is described. Based upon the flux nulling technique, this sensor uses a novel flux detector, instead of a Hall effect device, to achieve improved performance at lower cost.
Jonathan R. Leehey +2 more
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A general purpose, magnetically isolated current sensor is described. Based upon the flux nulling technique, this sensor uses a novel flux detector, instead of a Hall effect device, to achieve improved performance at lower cost.
Jonathan R. Leehey +2 more
openaire +1 more source
American Journal of Physics, 1986
Current transformers are used primarily to measure time varying currents under conditions where some degree of isolation from the primary circuit is desired. In this paper, the basic physics of current transformers is considered and several useful techniques for extending their performance are described.
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Current transformers are used primarily to measure time varying currents under conditions where some degree of isolation from the primary circuit is desired. In this paper, the basic physics of current transformers is considered and several useful techniques for extending their performance are described.
openaire +1 more source