Title :
Development of 72/84 kV dead-tank VCB with rated normal current of 3000 A
Author :
Saito, Hiroshi ; Nagatake, Kazuhiro ; Yamauchi, Kazuto ; Takeshita, Yukihiro ; Kobayashi, Takehiko ; Cho, Thomas ; Katsumata, Kiyohito ; Sakaki, Masayuki
Author_Institution :
Meidensha Corp., Numazu, Japan
Abstract :
A 72/84 kV dry-air insulated dead tank type VCB with rated normal current of 3000 A has been developed. The rated normal current of the conventional type is limited to 2000 A. We used thermal network analysis to design the 3000 A model. Based on the analysis results, the dimensions and materials of the conductors and contacts were modified and conditions to satisfy the temperature rise limit were determined. The results of temperature rise tests with a prototype model showed good agreement with the analysis results.
Keywords :
air insulation; vacuum circuit breakers; vacuum interrupters; current 3000 A; dead tank VCB; dry air insulated VCB; temperature rise; thermal network analysis; vacuum circuit breaker; voltage 72 kV; voltage 84 kV; Abstracts; Aluminum; Copper;
Conference_Titel :
Electric Power Equipment - Switching Technology (ICEPE-ST), 2013 2nd International Conference on
Conference_Location :
Matsue
DOI :
10.1109/ICEPE-ST.2013.6804327
