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Analysis of Ferroresonant Overvoltages at Maanshan Nuclear Power Station in Taiwan.
- Source :
-
IEEE Transactions on Power Delivery . Apr2006, Vol. 21 Issue 2, p1006-1012. 7p. 6 Diagrams, 1 Chart, 7 Graphs. - Publication Year :
- 2006
-
Abstract
- The "318 Blackout Incident" at the Maanshan Nuclear Power Station on March 18, 2001, is considered to be the most serious event over the 24-year history of nuclear power generation in Taiwan. This paper simulates a special overvoltage phenomenon that occurred 4 h before the blackout event, which could have caused the incident. The simulation results almost coincide closely with the actual conditions recorded. We found two major low-frequency and ferroresonant overvoltages caused by the motors which acted as generators when they lost power supply, interacting with power-line capacitance and power transformers. Since overvoltages were present for a short period, the breaker insulation did not break down immediately but the defects were accumulated. A blackout eventually occurred 4 h later, when the power supplied to the 4.16-kV essential bus A changed over from the 161-kV system to the 345-kV system, due to damage in the incoming breaker insulation. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NUCLEAR power plants
*ELECTRICAL engineering
*ELECTRIC power
*ENGINEERING
Subjects
Details
- Language :
- English
- ISSN :
- 08858977
- Volume :
- 21
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Power Delivery
- Publication Type :
- Academic Journal
- Accession number :
- 20539318
- Full Text :
- https://doi.org/10.1109/TPWRD.2005.860268