A newly developed web-based fault locating technology for transmission lines and its experience in the field

Imai, Shinichi; Kihara, Kazuo; Inoue, Toshihiro; Inukai, M.; Takani, H.; Kagami, Toshiro

doi:10.1109/tdc.2002.1178273

Cited by 3 publications

(1 citation statement)

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“…Although the paper reports successful results in identifying the faulted section, the exact fault location on the section is not attempted. Imai et al [7] use the Internet for communication between terminals to locate faults on a multiterminal line. Takani et al [8] report results from the implementation of a fault-location algorithm on actual fault data from a utility.…”

Section: Introductionmentioning

confidence: 99%

New Fault-Location Method for a Single Multiterminal Transmission Line Using Synchronized Phasor Measurements

Brahma

2006

IEEE Trans. Power Delivery

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This paper describes a new iterative method to locate a fault on a single multiterminal transmission line. The method uses synchronized voltage and current measurements from all terminals. Using positive-sequence components of the prefault and postfault waveforms, positive-sequence source impedances are estimated. Using these source impedances and the line data, the positive-sequence bus impedance matrix ( bus ) is formed. Using the properties of bus , an iterative algorithm is proposed. The algorithm first identifies the faulted section and then locates the fault on this section. This algorithm is applied to the data obtained from the Electromagnetic Transients Program simulation of a multiterminal transmission line. The simulation results show that the distinctive features of this method are that it performs with very high accuracy for all types of faults at different fault locations and is practically immune to fault resistance. Index Terms-Bus impedance matrix, Electromagnetic Transients Program (EMTP), fault analysis, fault location, synchronized phasor measurement.

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Section: Introductionmentioning

confidence: 99%