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Determination of transient overvoltages during shunt reactor deenergization

Hamid, H. A., Harid, Noureddine and Haddad, Abderrahmane 2009. Determination of transient overvoltages during shunt reactor deenergization. Presented at: 44th International Universities Power Engineering Conference (UPEC 2009), Glasgow, UK, 1-4 September 2009. Proceedings of the 44th International Universities Power Engineering Conference (UPEC). IEEE, pp. 888-891.

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Abstract

This paper presents an analytical solution and computer simulations of switching transient overvoltages during the disconnection of shunt reactors. The interruption of reactor current provokes excessive overvoltages particularly across the reactor and the circuit breaker grading capacitor. The magnitude of these overvoltages may exceed 2 p.u. which, consequently, may jeopardise the insulation of the reactor and accelerate the ageing of circuit breaker grading capacitors. In this work, the transient overvoltages were computed using ATP/EMTP simulations and analytical solution of the equivalent circuit during switching. For different switching times the distribution of overvoltages and the influence of switching angle is presented.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Uncontrolled Keywords: ATP/EMTP, Analytical solution, Chopping overvoltage, Grading capacitor, Recovery overvoltage, Shunt reactor, Switching operations
Publisher: IEEE
Related URLs:
Last Modified: 04 Jun 2017 03:37
URI: http://orca-mwe.cf.ac.uk/id/eprint/23671

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