Fault locating system and method for transmission lines and repe

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

179 15BF, H04B 346

Patent

active

040063208

ABSTRACT:
A communication system has at least one supervisory station and a large number of repeater stations spaced along a four-wire two-way transmission line. A number of repeater stations are selected at equal intervals along the line to have a coupling network coupling test signals from the first pair of wires in the transmission line to the second pair of wires which differs from the coupling network of the remainder of the repeater stations. To locate a fault, test signals in the form of pulses are sent from the supervisory station to the repeater stations. At each repeater station, if operative, the received test signals are coupled to the second pair of wires for retransmission back to the supervisory station. In view of the differences in the coupling networks, the test signals returned from the selected repeater stations will have a difference in, for example, amplitude which, when the returned test signals are displayed at the supervisory station can serve as markers to divide the repeater stations into groups and to determine the group containing the repeater station or line segment having a fault. The group containing the repeater station or line segment having a fault can then be displayed on the oscillograph on an expanded scale allowing ready determination of the segment or repeater station having the fault.

REFERENCES:
patent: 3560670 (1971-02-01), Heyes
patent: 3909563 (1975-09-01), Ghosh

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Fault locating system and method for transmission lines and repe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fault locating system and method for transmission lines and repe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fault locating system and method for transmission lines and repe will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1092608

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.