Results of an investigation on the overvoltages due to a vacuum circuit-breaker when switching an HV motor

Colombo, E.; Costa, Gustavo D.; Piccarreta, L.

doi:10.1109/61.4247

Cited by 16 publications

(3 citation statements)

References 2 publications

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“…The combination of vacuum circuit breaker (VCB), which is widely used in MV networks because of its outstanding breaking properties and low maintenance requirements, and cable networks has been recognized in industrial systems as a cause of problems with transient overvoltage (TOV) if care is not taken. 4,5 Due to the above similarities, there is a risk that such issues arise in WPs as well. Indeed, high-frequency, high-voltage transients are suspected to have contributed to failures in offshore WPs.…”

Section: Introductionmentioning

confidence: 99%

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Transients in collection grids of large offshore wind parks

2007

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Section: Introductionmentioning

confidence: 99%

“…4,5 Due to the above similarities, there is a risk that such issues arise in WPs as well. Indeed, high-frequency, high-voltage transients are suspected to have contributed to failures in offshore WPs.…”

Section: Introductionmentioning

confidence: 99%

Transients in collection grids of large offshore wind parks

2007

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“…Besides, sometimes high inter-turn overvoltages can take place which stress the thin insulation and accelerate its failure. So far, a lot of work has been done on transformer and motor switching [3]- [9]. However, voltage transients are measured on transformer terminals and prediction of the voltage distribution along the windings is difficult to be done.…”

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confidence: 99%

Experimental and Theoretical Analysis of Vacuum Circuit Breaker Prestrike Effect on a Transformer

Popov

Smeets

Sluis

et al. 2009

IEEE Trans. Power Delivery

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Experimental and theoretical analysis of vacuum circuit breaker prestrike effect on a transformerPopov, M.; Smeets, R.P.P.; Sluis, van der, L.; Herdt, de, H.; Declercq, J. Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers) Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication Citation for published version (APA):Popov, M., Smeets, R. P. P., Sluis, van der, L., Herdt, de, H., & Declercq, J. (2009). Experimental and theoretical analysis of vacuum circuit breaker prestrike effect on a transformer. IEEE Transactions on Power Delivery, 24(3), 1266-1274. DOI: 10.1109/TPWRD.2009 General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. I. INTRODUCTION IT IS well known that during switching highly inductive loads like transformers and motors, under specific conditions, multiple restrikes in the circuit breaker can occur. Multiple restrikes are fast voltage surges which proceed along the cable and reach transformer or motor terminals. Because of different surge impedances at terminals, a wave reflection and absorption takes place. Voltage oscillations which proceed toward windings are continuously superposed by new voltage waves from new upcoming surges. Hence, voltage waveforms along the transformer winding within a particular time interval can have very different amplitude and rate of rise. Their oscillations contain a broad frequency range which can be from a few kilohertz up to a few megahertz. These are unwanted phenomena [15]. This model is based on the measured frequency admittance matrix of the transformer, the elements of which are admittances measured from any provided measuring point in the transformer windings [16]. The advantage o...

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Voltage Surges–Causes, Effects and Remedies

Agrawal¹

2001

Industrial Power Engineering Handbook

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Results of an investigation on the overvoltages due to a vacuum circuit-breaker when switching an HV motor

Cited by 16 publications

References 2 publications

Transients in collection grids of large offshore wind parks

Transients in collection grids of large offshore wind parks

Experimental and Theoretical Analysis of Vacuum Circuit Breaker Prestrike Effect on a Transformer

Voltage Surges–Causes, Effects and Remedies

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