Title :
Development of interrupting chamber for 1000 kV HSGS with a delayed-zero-current interrupting performance
Author :
Yamagata, Y. ; Tanaka, K. ; Terasawa, Y. ; Shinkai, T. ; Mizoguchi, H. ; Hioki, I. ; Suzuki, K. ; Yokota, T.
Author_Institution :
Tokyo Electr. Power Co. Inc., Japan
Abstract :
High speed grounding switches (HSGS) for 1000 kV class transmission lines are required to interrupt a delayed-zero-current, which does not pass zero for more than 80 ms under particular fault conditions. A new interrupting chamber has been developed with an ability of keeping a gas blast for more than 80 ms. New testing methods have been investigated with the aim of testing the delayed-zero-current interrupting performance of the HSGS
Keywords :
earthing; gas blast circuit breakers; switchgear testing; 1000 kV; delayed-zero-current interrupting performance; fault conditions; gas blast; high speed grounding switches; interrupting chamber; testing methods; Circuit faults; Circuit stability; Delay effects; Electromagnetic induction; Electrostatic induction; Fault currents; Fluid flow; Gas insulation; Impedance; Temperature control;
Conference_Titel :
Energy Management and Power Delivery, 1995. Proceedings of EMPD '95., 1995 International Conference on
Print_ISBN :
0-7803-2981-3
DOI :
10.1109/EMPD.1995.500761
