Modeling of measuring current and voltage transformers in dynamic modes

Lebedev, Vladimir; Shuin, V.A.; Yablokov, Andrey; Filatova, Galina

doi:10.1109/meacs.2014.6986890

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…e traditional electromagnetic sensors (current and voltage transformers) have the limited frequency range and the error caused by core saturation [12]. Increasing the accuracy of the fault location methods became possible because of the invention of new innovative digital current and voltage transformers [13][14][15]. Its usage helps to improve the accuracy of the fault location determination, thanks to such advantages as high accuracy of the measurement (current and voltage error ≤0.1%), wide frequency range of the measurement including the direct current measurement, and absence of the saturation caused by short-circuit current and aperiodic component.…”

Section: Introductionmentioning

confidence: 99%

Increase of Accuracy of the Fault Location Methods for Overhead Electrical Power Lines

Lebedev

Filatova

Timofeev

2018

Advances in Materials Science and Engineering

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The high-voltage power lines are quite often damaged parts of the energy system. Line outage is always accompanied by undersupply of energy and decrease of reliability, cost, and quality of electric supply. That is why one of the important tasks of line maintenance is quick looking for location of the damage and organization of the rehabilitation. The main part of this work includes development and research of the methods and algorithms for fault location based on one-sided measurement and the ways to increase their accuracy. This type of measurement uses signals from digital current and voltage transformers as input. The influence of the basic distorting factors on the accuracy of the fault location determination methods is also considered.

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Section: Introductionmentioning

confidence: 99%