Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1983-04-01
1985-03-05
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
H01H 3318
Patent
active
045033021
ABSTRACT:
An electric switch has an arc interrupter mounted in a housing between two main conductors. The interrupter comprises a fixed contact having a first arcing surface, a fixed electrode having a second arcing surface, an arc-driving coil and a movable contact, the surfaces and the coil being coaxial with one another and the contact being mounted for angular movement about a pivot axis between a make position and a break position. During opening of the interrupter, an arc is initially struck between the contacts after which it is transferred from the contact to the electrode. The coil, now being part of the arc current path, produces a magnetic flux which interacts with the arc so that it is driven around the axis between the surfaces. That movement of the arc assists in extinguishing the arc at an appropriate current zero. Ferromagnetic material forms part of the magnetic circuit of the coil. Two interrupters can be arranged in series between the main conductors. Alternatively, the interrupter can have two fixed contacts, two movable contacts and two coils.
REFERENCES:
patent: 3471666 (1969-10-01), Barkan
patent: 4355219 (1982-10-01), Parry
"About the SF.sub.6 Gas Circuit Breaker of Rated 3.6/7.2 KV," Japan Electric Commity, Published 1970, Ono Shunichiro, Fujiwara Kazushi et al., (Yasukawa Electric Works).
"Arc Behavior & Breaking Characteristic of SF.sub.6 Gas Circuit Breaker of Rotary Arc Extinguishing System," Japan Electric Commity, Published 1981, Fujiwara Kazushi et al., (Yasukawa Electric Works).
Macon Robert S.
Northern Engineering Industries plc
LandOfFree
Arc interrupter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arc interrupter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc interrupter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1735999