High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Vacuum
Patent
1994-06-27
1996-09-17
Scott, J. R.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Vacuum
218129, 218132, H01H 3366, H01H 100
Patent
active
055570836
ABSTRACT:
According to the present invention there are provided a highly reliable electrode of high strength which undergoes little change even with the lapse of time, and a method for making the same, as well as a vacuum valve using such electrode and a vacuum circuit breaker using such vacuum valve. The vacuum circuit breaker has a fixed electrode and a movable electrode, each comprising an arc electrode, an arc electrode support member for supporting the arc electrode, and a coil electrode contiguous to the arc electrode support member, the arc electrode, the arc electrode support member and the coil electrode being formed as an integral structure by melting, not by bonding, particularly the arc electrode support member and the coil electrode being constituted by a Cu alloy containing 0.05-2.5% by weight of at least one of Cr, Ag, W, V and Zr.
REFERENCES:
patent: 3471669 (1969-10-01), Curtis
patent: 3596025 (1971-07-01), Talento
patent: 3818163 (1974-06-01), Robinson
patent: 4124790 (1978-11-01), Kumbera et al.
patent: 4588879 (1986-05-01), Noda et al.
patent: 4663504 (1987-05-01), Barkan
patent: 4704506 (1987-11-01), Kurosawa et al.
patent: 4870231 (1989-09-01), Naya et al.
patent: 4892986 (1990-01-01), Watanabe et al.
IEEE Standard Dictionary of Electrical and Electronic Terms; IEEE Std 100-1972; pp. 629, 630, First Edition.
IEEE Standard Dictionary of Electrical and Electronics Terms; IEEE Std 100-1977, p. 760, Second Edition.
Endo Shunkichi
Hakamata Yoshimi
Koguchi Yoshio
Kojima Yoshitaka
Komuro Katsuhiro
Hitachi , Ltd.
Scott J. R.
LandOfFree
Vacuum circuit breaker and electric contact does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vacuum circuit breaker and electric contact, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum circuit breaker and electric contact will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-414876