Future trends in vacuum technology applications
Tóm tắt
In the medium voltage range the vacuum switching principle is well established. Today vacuum circuit breakers are available up to 52 kV rated voltage and 80 kA short-circuit current. Based on long term experiences and knowledge from basic research development there is a clear progress into lower and higher voltage ranges and highest interrupting capabilities. In addition to expansion of ratings also new applications for the vacuum technology have been attained. For example loadbreakers and recloser as well as transformer tap changers make more and more use of vacuum tubes. Field experiences reveal high reliability of the vacuum chambers with mean time to failure (MTTF) of several tenthousands of tubeyears. Due to high-tech production processes and modem tube designs vacuum switching devices today are maintenance-free.
Từ khóa
#Vacuum technology #Magnetic fields #Medium voltage #Contacts #Interrupters #Circuit breakers #Electron tubes #Power generation #Vacuum systems #Magnetic switchingTài liệu tham khảo
10.1109/TPAS.1981.316551
10.1109/27.964466
betz, 2002, Switching performance of two vacuum intemtpters in series
hartmann, 1999, Kontakt-werkstoffe und Prüfverfahren in der Vakuumschalttechnik, VDE-Fachbericht, 191
10.1049/cp:20010680
10.1109/61.634170
renz, 0, On criteria of optimized application of AMF- and RMF- contact systems in vacuum interrupters, 176
jianhua, 0, Review of theoretical research in vacuum arc and their applications in China, XIXth ISDEIV, 139
reininghaus, 1997, Schaltenin Vakuum- das bewährte Schaltprinzip für die Mittelspaunung, Etz Elektrotech + Autom, 118, 14