Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1986-07-03
1987-11-03
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
H01H 3366
Patent
active
047045060
ABSTRACT:
A cylindrical coil electrode incorporated in a vacuum interrupter comprises a cylindrical body having an opening at one end thereof, two electrical connections provided between the edge surface of the opening of the cylindrical body and a main electrode, two arcuate slits formed on the cylindrical body between the two electrical connections, two arcuate current paths formed in the cylindrical body by the arcuate slits beginning as a respective electrical connection and ending at a rod, and two current blocking slits formed on the cylindrical body at positions where one end of each of the current paths laps the other end of the other current paths. Because of the above structure, one-turn current flows throughout the current paths so that a uniform axial magnetic field can be applied to the main electrode, and an arc current can be uniformly distributed over the entire surface of the main electrode, thereby improving the current interruption performance of the vacuum interrupter.
REFERENCES:
patent: 3764764 (1973-10-01), Takasuna et al.
Endo Syunkichi
Iwashita Kiyoji
Kurasawa Takanao
Kurosawa Yukio
Matumoto Morihisa
Hitachi , Ltd.
Macon Robert S.
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