On the use of metal oxide varistors as a snubber circuit in solid-state breakers

Magnusson, Jesper; Bissal, Ara; Engdahl, Göran; Saers, Robert; Zhang, Zichi; Liljestrand, Lars

doi:10.1109/isgteurope.2013.6695454

Cited by 12 publications

(8 citation statements)

References 3 publications

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“…Transient electromagnetic processes taking place along have been studied in sufficient detail [11]. Moreover, it should be noted that, due to high energy stored in the inductive load at the time of switching, other methods are unsuitable because of impossibility to implement them (usually the energy stored in the inductive load is much higher than the energy stored in the circuit inductance) [14].…”

Section: Analysis Of Previous Studies and Statement Of The Problemmentioning

confidence: 99%

“…At present, due to the development of energy-intensive varistors that allow dissipating the energy of several hundred kJ and that are suitable in size and cost, sufficiently favourable conditions have been created for their use in modern switching SA for the dissipation of stored energy in the circuit inductance at switching off the device [11,16].…”

Section: Analysis Of Previous Studies and Statement Of The Problemmentioning

confidence: 99%

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Methods of overvoltage limitation in modern dc semiconductor switching apparatus and their calculation

Soskov

Sabalaeva

Glebova

et al. 2016

EEJET

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formers (STs) as switches. The advanced devices have such operational qualities as high switching durability (up to several million cycles), an extremely high speed of performance (only several microseconds), absence of highly expensive and unreliable systems of forced switching, improved functional features, and convenience of combinability with microprocessor devices, which make them really competitive on the world market despite their high cost [3,4].These improved semiconductor apparatus (SA) of the DC, both contactless [5,6] and hybrid [7,8], have switching surges continuously caused by energy stored in the inductance of the circuit and the load at the time of switching. However, due to the fact that the circuits at switched off at a significant load almost instantly, the stored energy will be much higher, and dampening it will be much more difficult than in previously developed devices with the capacitive switching of the semiconductor switch where the switching capacitor combines its main function with the role of a voltage regulator [9].Therefore, it is expedient to research the methods of limiting switch surges in these devices and to make relevant calculations. The study is likely to be of indispensable interest to professionals working in the field of electromechanical engineering.

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Section: Analysis Of Previous Studies and Statement Of The Problemmentioning

confidence: 99%

Section: Analysis Of Previous Studies and Statement Of The Problemmentioning

confidence: 99%

Methods of overvoltage limitation in modern dc semiconductor switching apparatus and their calculation

Soskov

Sabalaeva

Glebova

et al. 2016

EEJET

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show abstract

“…У деяких випадках навіть пропону-ється постійний коефіцієнт, що задає максимальний рівень перенапруг [10].…”

Section: літературний огляд та постановка проблемиunclassified

“…Слід також зазначити, що результати цього дослідження разом з проведеними раніше дослідженнями теплового режиму СНП, що також працюють в НА [10], дозволяють тепер з висо-кою точністю і з невеликими витратами часу вибирати СНП за струмом і за напругою в процесі проектування сучасних комутаційних НА, тобто вирішувати основне завдання цього проектування. В даній роботі не наведені порівняльні експеримен-тальні дослідження досліджуваних процесів через над-мірне не перевантаження статті.…”

Section: рис 11 еквівалентна розрахункова схемаunclassified

Developing of methods calculation of comutation overvoltage in semiconductor apparatus in ac circuits

Soskov¹,

Sabalaeva²,

Glebova³

et al. 2016

EEJET

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“…DC circuit breakers can be classified in several types by their technology. Significant research has been initiated in this field with considerable results [21][22][23]. However, the increased cost and space requirements of DC circuit breakers are still an impeding factor.…”

Section: Challenges Related With DC Technology and Dc System Architecmentioning

confidence: 99%

Onboard DC grid employing smart grid technology: challenges, state of the art and future prospects

Kanellos

Tsekouras

Prousalidis

2015

IET Electrical Systems in Transportation

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Research in All Electric Ship (AES) and onboard DC grids has already been initiated and it is going to be intensified because of its promising perspectives. This study aims to present in a coherent and methodical way why onboard DC distribution systems, smart grids and AES concept can greatly improve ship efficiency. Emerging technical challenges and future prospects are presented; state of the art is summarised while directions for a complete research roadmap are proposed.

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On the use of metal oxide varistors as a snubber circuit in solid-state breakers

Cited by 12 publications

References 3 publications

Methods of overvoltage limitation in modern dc semiconductor switching apparatus and their calculation

Methods of overvoltage limitation in modern dc semiconductor switching apparatus and their calculation

Developing of methods calculation of comutation overvoltage in semiconductor apparatus in ac circuits

Onboard DC grid employing smart grid technology: challenges, state of the art and future prospects

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