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Simulation of switching overvoltages of 400 kV shunt reactor

Asghar Barghandan ; Monenco Iran Co.
Behzad Sedaghat ; Monenco Iran Co.

Puni tekst: engleski, pdf (603 KB) str. 50-59 preuzimanja: 1.607* citiraj
APA 6th Edition
Barghandan, A. i Sedaghat, B. (2015). Simulation of switching overvoltages of 400 kV shunt reactor. Transformers Magazine, 2 (1), 50-59. Preuzeto s https://hrcak.srce.hr/182929
MLA 8th Edition
Barghandan, Asghar i Behzad Sedaghat. "Simulation of switching overvoltages of 400 kV shunt reactor." Transformers Magazine, vol. 2, br. 1, 2015, str. 50-59. https://hrcak.srce.hr/182929. Citirano 25.11.2020.
Chicago 17th Edition
Barghandan, Asghar i Behzad Sedaghat. "Simulation of switching overvoltages of 400 kV shunt reactor." Transformers Magazine 2, br. 1 (2015): 50-59. https://hrcak.srce.hr/182929
Harvard
Barghandan, A., i Sedaghat, B. (2015). 'Simulation of switching overvoltages of 400 kV shunt reactor', Transformers Magazine, 2(1), str. 50-59. Preuzeto s: https://hrcak.srce.hr/182929 (Datum pristupa: 25.11.2020.)
Vancouver
Barghandan A, Sedaghat B. Simulation of switching overvoltages of 400 kV shunt reactor. Transformers Magazine [Internet]. 2015 [pristupljeno 25.11.2020.];2(1):50-59. Dostupno na: https://hrcak.srce.hr/182929
IEEE
A. Barghandan i B. Sedaghat, "Simulation of switching overvoltages of 400 kV shunt reactor", Transformers Magazine, vol.2, br. 1, str. 50-59, 2015. [Online]. Dostupno na: https://hrcak.srce.hr/182929. [Citirano: 25.11.2020.]

Sažetak
Bam 400/132 kV substation in Kerman region, Iran, has a 50 MVAR shunt reactor on 400 kV busbar which is grounded through a 128 kVAR neutral reactor. The neutral earthing reactor assists in interrupting line to ground arcing current when switching for clearing a line to ground arcing fault, but the switching of shunt reactor which is grounded through a neutral reactor can impose a more severe duty on the circuit breakers than switching a solidly grounded shunt reactor. While opening shunt reactor, transient phenomena, such as chopping overvoltages and reignition overvoltage/overcurrents can occur. These overvoltages/currents can put circuit breakers, reactors and other equipment in danger. In this paper, the Bam substation’s equipment such as electrical circuits and associated equipment will be modelled in transient mode using EMTDC/PSCAD software. The arc behaviour and excessive voltage caused by the switching will be analysed. Finally, three methods including controlled switching, using surge arrester and a disconnecting switch across the neutral earthing reactor for mitigating these overvoltages will be compared.

Ključne riječi
shunt reactor; neutral reactor; chopping current; switching overvoltage; controlled switching

Hrčak ID: 182929

URI
https://hrcak.srce.hr/182929

Posjeta: 1.716 *