Electrical transmission or interconnection systems – Plural supply circuits or sources
Patent
1991-07-10
1993-05-25
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Plural supply circuits or sources
307112, H04B 300
Patent
active
052143120
ABSTRACT:
A power feed line switching circuit for a submarine branching unit has first, second and third electrical paths connected in a Y-shaped connection, and first, second and third terminals connected respectively thereto. The power feed line switching circuit also has first, second and third relays each including a drive unit inserted in the first, second and third terminals and a switching unit for disconnecting the corresponding terminal and connecting the terminal to the ground, respectively. These relays are used to control the connections between the terminals and electrical paths, for establishing a one-end power feed line or a both-end power feed line to maintain power feed for repeaters and the submarine branching unit by the plurality of relays, even though a fault is caused in the optical marine cables for cable landing stations.
REFERENCES:
patent: 3644787 (1972-02-01), Hamilton
patent: 4419591 (1983-12-01), Irokawa et al.
patent: 4621198 (1986-11-01), Roberge et al.
patent: 4679115 (1987-07-01), Connan et al.
patent: 4724391 (1988-02-01), Blahous
patent: 4798969 (1989-01-01), Inoue et al.
Fujitsu Limited
Gaffin Jeffrey A.
LandOfFree
Power feed line switching circuit for submarine branching device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power feed line switching circuit for submarine branching device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power feed line switching circuit for submarine branching device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-899632