Title :
Voltage transformer ferroresonance in 275 kV substation
Author :
Emin, Z. ; Zahawi, B. A T A1 ; Tong, Y.K.
Author_Institution :
Nat. Grid Co. plc, Leatherhead, UK
Abstract :
The ferroresonant behaviour of a 275 kV electromagnetic voltage transformers, fed from a sinusoidal supply via circuit breaker grading capacitance, in a National Grid substation in analysed using nonlinear bifurcation diagrams representing system behaviour have been presented showing two possible types of operation, normal response and fundamental frequency ferroresonance, in line with practical site experience
Keywords :
substations; 275 kV; National Grid substation; circuit breaker grading capacitance; electromagnetic voltage transformers; ferroresonant behaviour; fundamental frequency ferroresonance; nonlinear bifurcation diagrams; normal response; sensitivity analysis; sinusoidal supply; substation; voltage transformer ferroresonance;
Conference_Titel :
High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)
Conference_Location :
London
Print_ISBN :
0-85296-719-5
DOI :
10.1049/cp:19990562
