Zero-crossing measurements as a tool in the development of high-voltage circuit breakers

Habedank, U.; Knobloch, H.

doi:10.1049/ip-smt:20010585

Cited by 9 publications

(2 citation statements)

References 1 publication

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“…This will lead to a high transient recovery voltage across the breaker that might pass the dielectric withstand limit of the breaker causing a restrike. This current contains high frequencies components [26]. Moreover, the arc extinguishing stage was modeled using a series connection of the Cassie and Mayr arc models [26].…”

Section: Circuit Breaker (Cb) Modelingmentioning

confidence: 99%

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Classification of Many Abnormal Events in Radial Distribution Feeders Using the Complex Morlet Wavelet and Decision Trees

Almalki

Hatziadoniu

2018

Energies

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Monitoring of abnormal events in a distribution feeder by using a single technique is a challenging task. A number of abnormal events can cause unsafe operation, including a high impedance fault (HIF), a partial breakdown to a cable insulation, and a circuit breaker (CB) malfunction due to capacitor bank de-energization. These abnormal events are not detectable by conventional protection schemes. In this paper, a new technique to identify distribution feeder events is proposed based on the complex Morlet wavelet (CMW) and on a decision tree (DT) classifier. First, the event is detected using CMW. Subsequently, a DT using event signatures classifies the event as normal operation, continuous and non-continuous arcing events (C.A.E. and N.C.A.E.). Additional information from the supervisory control and data acquisition (SCADA) can be used to precisely identify the event. The proposed method is meticulously tested on the IEEE 13-and IEEE 34-bus systems and has shown to correctly classify those events. Furthermore, the proposed method is capable of detecting very high impedance incipient faults (IFs) and CB restrikes at the substation level with relatively short detection time. The proposed method uses only current measurements at a low sampling rate of 1440 Hz yielding an improvement of existing methods that require much higher sampling rates.

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Section: Circuit Breaker (Cb) Modelingmentioning

confidence: 99%

“…This current contains high frequencies components [26]. Moreover, the arc extinguishing stage was modeled using a series connection of the Cassie and Mayr arc models [26]. The Cassie model describes the arc during high currents while Mayr model describes the arc at low current near the zero crossing [24].…”

Section: Circuit Breaker (Cb) Modelingmentioning

confidence: 99%

Classification of Many Abnormal Events in Radial Distribution Feeders Using the Complex Morlet Wavelet and Decision Trees

Almalki

Hatziadoniu

2018

Energies

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An improved method for fast evaluating arc quenching performance of a gas based on 1D arc decaying model

Zhong

Zheng

2019

Physics of Plasmas

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The evaluation of an arc quenching medium in circuit breakers usually requires the experimental investigation or the 2D or 3D magnetohydrodynamics simulation of switching arcs, which are expensive and time-consuming. In this work, a fast method is proposed for evaluating the arc quenching performance of gases. In this method, the arc decaying process is divided into three stages based on the results of 1D arc decaying modeling, including the thermal recovery stage, the predielectric recovery stage, and the postdielectric recovery stage. Compared to the previous method, the present method is improved mainly in the three aspects: the thermal recovery stage is featured by the average radial temperature instead of the axial temperature; the criterion of dividing the dielectric recovery stage into the pre- and postdielectric recovery stages is validated by the average electron number density instead of choosing arbitrarily; and the postdielectric recovery stage is characterized by the critical electric field strength Ecr instead of the reduced critical electric field strength (E/N)cr. The case study of SF6, CO2, CF4, and air arcs indicates that the present method yields the same descending order of the thermal recovery rate and the predielectric recovery rate for the four gases as the previous method. Moreover, the present method can avoid negative postdielectric recovery rates, which means that it is more reasonable than the previous method.

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Transients in wind power plants - part I: Modeling methodology and validation

Badrzadeh

Hogdahl

Isabegovic

2011

2011 IEEE Industry Applications Society Annual Meeting

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Zero-crossing measurements as a tool in the development of high-voltage circuit breakers

Cited by 9 publications

References 1 publication

Classification of Many Abnormal Events in Radial Distribution Feeders Using the Complex Morlet Wavelet and Decision Trees

Classification of Many Abnormal Events in Radial Distribution Feeders Using the Complex Morlet Wavelet and Decision Trees

An improved method for fast evaluating arc quenching performance of a gas based on 1D arc decaying model

Transients in wind power plants - part I: Modeling methodology and validation

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