Generator step up transformer overvoltage protection in EPS power plants

• Main Authors: Mrvić Jovan, Vukelja Petar, Simić Ninoslav
• Format: Article
• Language: English
• Published: Electrical Engineering Institute Nikola Tesla 2015-01-01
• Series: Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
• Subjects: overvoltage; overvoltage protection; transformers; selection surge arresters; monitoring surge arresters; transferred overvoltage
• Online Access: http://scindeks-clanci.ceon.rs/data/pdf/0350-8528/2015/0350-85281525087M.pdf

This paper presents the current state of the overvoltage protection of generator transformers in power plants of the Power Company of Serbia (EPS) and gives a critical overview of their overvoltage protection. Recommendations for the purpose of its control are provided. Improved overvoltage protection of power transformers in the EPS is suggested. A critical review of the state of earthing points of the generator transformers is also given.