Title :
Understanding ferroresonance
Author :
Escudero, Marta Val ; Dudurych, Ivan ; Redfem, M.
Author_Institution :
ESB Int., Ireland
Abstract :
This paper presents a ferroresonant experience involving inductive voltage transformers (VTs) in a 400 kV substation. The origin of the phenomena, the conditions under it may become sustained and its effects on plant equipment are discussed. A very comprehensive analysis is performed using time domain simulations with ATP. Simulation results reproduced satisfactorily the ferroresonant events recorded during the field tests in the 400 kV substation. A number of mitigation options are discussed.
Keywords :
EMTP; circuit breakers; ferroresonance; potential transformers; power capacitors; power system harmonics; power system simulation; time-domain analysis; transformer substations; 400 kV; ATP-EMTP; circuit breaker; ferroresonance; grading capacitor; inductive voltage transformer; nonlinear dynamics; plant equipment; power system modelling; substation; time domain simulation; Capacitance; Capacitors; Circuits; Ferroresonance; Frequency; Power system harmonics; Power transformer insulation; Power transformers; Steady-state; Voltage transformers;
Conference_Titel :
Universities Power Engineering Conference, 2004. UPEC 2004. 39th International
Conference_Location :
Bristol, UK
Print_ISBN :
1-86043-365-0
