Method and apparatus for protecting a power transmission line

Details Method and apparatus for protecting a power transmission line Method and apparatus for protecting a power transmission line

1993-06-01

1996-08-06

Williams, Howard L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Feeder protection in distribution networks

361 80, 361 42, 324522, H02H 300

Patent

active

055439950

ABSTRACT:
Method and apparatus for preventing reclosing of circuit breakers to reconnect a transmission line when a break fault occurs in the transmission line. A voltage at a fault point is estimated from opposite ends of the transmission line, and when those voltages are not equal, the break fault of the transmission line is determined, the break fault is displayed and the reclosing by a protective relay is prevented. By specifying a fault of the transmission line as a break fault, a recovery time of the transmission time is significantly reduced and an equipment is protected because the closing of the circuit breaker is blocked during the fault.

REFERENCES:
patent: 4800509 (1989-01-01), Nimmersjo 361 82
"Protective Relaying System" published by Denki Shoin, Feb. 25, 1974, pp. 138-139.

Affiliated with

Also associated with

Rating

Method and apparatus for protecting a power transmission line does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for protecting a power transmission line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for protecting a power transmission line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2195965