Drive to last reclosure operation in a protective relaying syste

Details Drive to last reclosure operation in a protective relaying syste Drive to last reclosure operation in a protective relaying syste

1995-10-05

1998-07-21

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Automatic reclosing

361 59, H02H 300

Patent

active

057842396

ABSTRACT:
A reclosing relay in accordance with the disclosed invention comprises a reclose initiate (RI) input and a drive to last reclosure (DTLR) input, and an output at which a close signal is provided to effect the reclosure of a circuit breaker associated with the reclosing relay. The reclosing relay is operative when it receives a first RI signal at its RI input to provide the close signal to the associated circuit breaker substantially immediately or with time delay as programmed by settings. The reclosing relay is operative when it receives a signal from a second RI contact at its DTLR input to provide the close signal to the circuit breaker only after synchronism is identified between the line voltages on either side of the associated circuit breaker.

REFERENCES:
ABB Power T&D Company Inc., "Line Reclosing Relay", Instruction Manual (I.L. 41-669A) Version 1.0, May 1995.
Elmore, W.A., "Reclosing and Synchronizing" pp. 333-343. No Date.

Affiliated with

Also associated with

Rating

Drive to last reclosure operation in a protective relaying syste does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drive to last reclosure operation in a protective relaying syste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive to last reclosure operation in a protective relaying syste will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1652595