Range limitation for a protection device in a power supply...

Details Range limitation for a protection device in a power supply... Range limitation for a protection device in a power supply...

H - Electricity

02

H

348/13

H02H 7/26 (2006.01)

Patent

CA 1287159

- 17 - ABSTRACT OF THE DISCLOSURE A method and device for range limitation and direct trip- ping for protection in the event of a fault on an electri- cal power line extending between two stations (P, Q) in- volves employing a travelling wave model in one of the stations (P) which, with the aid of measured currents and voltages in that station, to calculate the voltage distribution at a number of control points along the line. The range of the protection device is indicated as the distance between the measuring station and that control point for which a voltage difference (.delta.u) becomes equal to zero. The voltage difference consists of the differ- ence between the absolute value of a voltage difference (.DELTA.u), formed as the sum of a voltage value (U") calculated with the travelling wave model for the control point at a certain time, and the corresponding voltage value (U') one half-period earlier and the absolute value of the latter voltage value. When the voltage difference becomes greater than zero, direct tripping can be initiated.

534075

Affiliated with

Also associated with

Rating

Range limitation for a protection device in a power supply... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Range limitation for a protection device in a power supply..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Range limitation for a protection device in a power supply... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1179318