A combined directional and faulted phase selector element based on incremental quantities

Author

Benmouyal, Gabriel ; Mahseredjian, Jean

Volume

16

Issue

4

fYear

2001

fDate

10/1/2001 12:00:00 AM

Firstpage

478

Lastpage

484

Abstract

In this paper, differential incremental or superimposed voltage and current quantities are used in order to determine directionality of a fault in a network. It is shown that this can be accomplished by performing three scalar products between three voltage and current phasor pairs. The relative levels of these same three scalar products can be furthermore used to identify the faulted phases. While, in ultra-high-speed directional comparison relays, superimposed voltage and current had to be treated in the time domain in order to get speed. In this paper, all computations are done in the frequency domain

Keywords

frequency-domain analysis; power system faults; power system protection; power system relaying; relay protection; combined directional/faulted phase selector element; current quantities; frequency domain; incremental quantities; scalar products; time domain; ultra-high-speed directional comparison relays; voltage quantities; Differential equations; Fault diagnosis; Frequency domain analysis; Helium; Impedance; Laboratories; Protection; Protective relaying; Relays; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.956725

Filename

956725