An Improved Identification Method of Magnetizing Inrush Current Phenomena in Distribution System

Maeda, Tatsuhiko; Naitoh, Tadashi; Toyama, Atsushi; Takeda, Keiki

doi:10.1541/ieejpes.132.260

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Determination Of Three‐phase Transformer Connection Type1

Introduction1

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2013

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Cited by 2 publications

(2 citation statements)

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“…For current‐based determination , we chose 200 A, the primary rated current of instrumental CT for large‐capacity customers in 6.6‐kV distribution networks. There is no such reference in the case of voltage.…”

Section: Determination Of Three‐phase Transformer Connection Typementioning

confidence: 99%

“…Since this algorithm estimates convergence and cannot be used in its present form to estimate T s and T e , we developed a method in which the minimum current variation is used as a new estimation indicator . In addition, to increase versatility, we developed an automatic algorithm to determine the minimum variation current corresponding to T s and T e in the Δ 2 process .…”

Section: Introductionmentioning

confidence: 99%

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An Identification Method of Magnetizing Inrush Current Phenomena by Voltage Waveform

Naitoh

Takeda

Toyama

et al. 2013

Electrical Engineering Japan

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Summary In this paper, the authors propose a new method for identification of magnetizing inrush current phenomena. In general, the identification is performed using the current waveform. However, saturation of current transformers makes it impossible to obtain such a waveform. Therefore, the authors introduce an identification method using the voltage waveform, in which the transformer saturation voltage does not occur. By applying Aitken's Δ2 process, it is shown that the new identification method gives accurate saturation start and end times.

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Section: Determination Of Three‐phase Transformer Connection Typementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%