Influence of fault arc characteristics on the accuracy of digital fault locators

This paper proposes a time domain model of a fault locator with special reference to fault are nonlinearities by applying the MODELS language of the EMTP. It has been found that an impedance relay type locator is significantly influenced by the fault arc nonlinearities, while the current diversion r...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2001-04, Vol.16 (2), p.195-199
Main Authors: Funabashi, T., Otoguro, H., Mizuma, Y., Dube, L., Kizilcay, F., Ametani, A.
Format: Article
Language:English
Subjects:
Arc discharges
Bypasses
Circuit faults
Digital
Digital relays
EMTP
Fault location
Faults
Frequency domain analysis
Impedance
Locators
Mathematical models
Nonlinearity
Power transmission lines
Protective relaying
Time domain
Voltage
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Summary:This paper proposes a time domain model of a fault locator with special reference to fault are nonlinearities by applying the MODELS language of the EMTP. It has been found that an impedance relay type locator is significantly influenced by the fault arc nonlinearities, while the current diversion ratio method is not influenced. This validates the advantage of the current diversion approach over the impedance approach.
ISSN:0885-8977
1937-4208
DOI:10.1109/61.915482