Title :
Wide frequency model for transfer function of potential transformer in substation
Author :
Wu, Maolin ; Cui, Xiang
Author_Institution :
North China Electr. Power Univ., Hebei
Abstract :
When the switches were operated, the transient overvoltage will be caused on the bus bar in substation. If the wide frequency model of the potential transformer (PT) or the coupling capacitor voltage transformer (CCVT) was acquired, the interference voltage in the secondary circuits caused by the transient overvoltage could be predicted. In the paper, a modified transfer function synthesis method is presented. After the transfer characteristic of the PT or CCVT is measured, the wide frequency model of the PT or CCVT can be set up with the synthesis method. The method is simple and effective
Keywords :
potential transformers; transfer functions; transformer substations; circuit synthesis; coupling capacitor voltage transformer; interference voltage; potential transformer; substation; switches; transfer function synthesis method; transient overvoltage; transients overvoltage; wide frequency model; Circuit synthesis; Coupling circuits; Frequency; Predictive models; Substations; Switched capacitor circuits; Switches; Transfer functions; Voltage control; Voltage transformers;
Conference_Titel :
Electromagnetic Compatibility, 2003. EMC '03. 2003 IEEE International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-7779-6
DOI :
10.1109/ICSMC2.2003.1428257
