Title :
A study on the detection of asynchronous state of the synchronous generator
Author :
Hyung-Joo Choi ; Heung-Ho Lee
Author_Institution :
Dept. of Electr. Eng., Korea Midland Power Co. (KOMIPO), Seoul, South Korea
Abstract :
This paper includes new protection concepts and practices to avoid mechanical damages of three-phase transformer by asynchronous operation of synchronous generator. This failure is often caused just after synchronous generator was connected to the grid because of a malfunction of the controller or misconnections of the synchronous devices. The results of the studies on the analyzing the phenomenon of asynchronous operation experienced in Korea and rapidly detecting asynchronous state are described.
Keywords :
failure analysis; power grids; power transformers; synchronous generators; transformer protection; Korea; asynchronous operation; asynchronous state; asynchronous state detection; controller; mechanical damages; protection concepts; synchronous devices; synchronous generator; three-phase transformer; Admittance; Circuit breakers; Fault currents; Surge protection; Surges; Synchronous generators;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2013 International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4799-1446-3
DOI :
10.1109/ICEMS.2013.6713149
