Analysis of operation of voltage transformers during interruptions and dips of primary voltage

Kaczmarek, M.; Brodecki, D.; Nowicz, R.

doi:10.1109/epqu.2009.5318848

Cited by 9 publications

(6 citation statements)

References 1 publication

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“…The obtained results of electronic voltage transducers operation in conditions of voltage dips and interruptions of measured voltage were compared to similar measurements obtained from the previously studied inductive voltage transformers [6]. Voltage transformer A with two secondary windings (2000 V / 100 V / 100 V, 0,5 class) was described in details in the scientific works [6,7].…”

Section: Results For Inductive Voltage Transformersmentioning

confidence: 99%

“…Voltage transformer A with two secondary windings (2000 V / 100 V / 100 V, 0,5 class) was described in details in the scientific works [6,7]. During laboratory studies inductive voltage transformer type UDZ 24 (2000 V / 100 V, 0,5 class) was also tested [6][7][8].…”

Section: Results For Inductive Voltage Transformersmentioning

confidence: 99%

“…They transform directly immeasurable, due to their high value, voltages and currents to values measurable directly by typical ammeters and voltmeters or devices used for power quality tests [5]. Both, voltage transformers and electronic transducers should ensure the accuracy of transformation also in transient states such us dips and interruptions of measured voltage [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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The study of electronic voltage transducers operation in conditions of dips and interruptions of measured voltage

Kaczmarek¹,

Szczęsny²,

Nowicz³

2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. The aim of the paper is to present a response on dips and on interruptions of the measured voltage by means of electronic voltage transducers and inductive voltage transformers. Results of laboratory studies show high overvoltages generated in both a primary and secondary side of inductive VTs during the above mentioned conditions. Overvoltages in secondary circuits may damage measuring or protection apparatus connected to the secondary side of the VT. Using electronic voltage transducers enables users to avoid these problems.Key words: voltage transducer, voltage interruptions and dips, power quality, reliability of the power supply.

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Section: Results For Inductive Voltage Transformersmentioning

confidence: 99%

Section: Results For Inductive Voltage Transformersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The study of electronic voltage transducers operation in conditions of dips and interruptions of measured voltage

Kaczmarek¹,

Szczęsny²,

Nowicz³

2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

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“…It is possible to evaluate the impulse voltage distribution in transformer winding and the related winding response to a standard full wave and to a clipped wave, especially at the ends of the coil [9]. Another important aspect is the value of the load and its power factor; in fact the impedance increase at the secondary winding involves a reduction of harmonics disturbances influence [10]. A measurement laboratory survey has been conducted by the Authors in recent years.…”

Section: Introductionmentioning

confidence: 99%

IVTs behavior in SF<inf>6</inf> switching transients: Fast front voltage impulse

Grasselli

Lamedica

Sangiovanni

et al. 2014

2014 16th International Conference on Harmonics and Quality of Power (ICHQP)

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Instrument Voltage Transformers (IVTs) introduce errors in power quality measure due to resonance's effects at high frequency. The accuracy of IVTs, definite by standards, is only about nominal frequency and does not consider high frequency response. The paper reports the IVTs experimental analysis on resonance's disturbances transferred to secondary side of Instrument Voltage Transformer. In particular the main results obtained from a laboratory survey on three currently marketed IVTs with same features but different manufacture are presented. IVTs are tested with very fast front voltage impulse whose waveform is similar to the characteristic one of SF 6 switches operations.

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“…Ref. [ 30 ] represents another frequency characterization of VTs, while [ 31 ] analyzes the frequency characterization of VT under network interruptions. For LPCTs, [ 32 ] introduces a new Rogowski coil design to measure a wide pulse current.…”

Section: Introductionmentioning

confidence: 99%

Low-Power Voltage Transformer Smart Frequency Modeling and Output Prediction up to 2.5 kHz, Using Sinc-Response Approach

Ghaderi

Mingotti

Peretto

et al. 2020

Sensors

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The instrument transformers scenario is moving towards the adoption of a new generation of low-power instrument transformers. This disruptive change also requires that the modeling, characterization, and testing of those devices must be improved. Therefore, this study focuses on a smart approach developed by the authors in a previous study to estimate the output of low-power voltage transformers (LPVT). The approach—which is based on a sort of modeling in the frequency domain (the so-called sinc-response)—allows obtaining the behavior of the LPVT at rated and distorted conditions. Experimental tests performed on off-the-shelf devices confirm the applicability and effectiveness of the proposed approach when estimating the output response of LPVTs.

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Analysis of operation of voltage transformers during interruptions and dips of primary voltage

Cited by 9 publications

References 1 publication

The study of electronic voltage transducers operation in conditions of dips and interruptions of measured voltage

The study of electronic voltage transducers operation in conditions of dips and interruptions of measured voltage

IVTs behavior in SF<inf>6</inf> switching transients: Fast front voltage impulse

Low-Power Voltage Transformer Smart Frequency Modeling and Output Prediction up to 2.5 kHz, Using Sinc-Response Approach

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