Title: Overvoltage protection and insulation coordination
Abstract: The surge arrester at the line entrance must be installed for the protection from fast-front overvoltages. The selected surge arrester in the simulation model has a sufficient performance for the assumed lightning strike and other conditions. The standard rated lightning impulse withstand voltage can be selected from 1,050, 1,175, 1,300, and 1,425 kV for the equipment whose highest overvoltage is 420 kV. From the simulation results in this example, it is normally recommended to select 1,300 or 1,425 kV. The selection of 1,175 kV depends on the choice of a safety margin. For the final selection of the withstand voltages and surge arresters, it is also required to perform the temporary overvoltage analysis and the slow-front overvoltage analysis.
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
Cited By Count: 32
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot