Empirical model of a current-limiting fuse using EMTP

Petit, A.; St-Jean, G.; Fecteau, G.

doi:10.1109/61.19221

Cited by 19 publications

(7 citation statements)

References 6 publications

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“…In this paper, the following details are not taken into account, and are left for future work:  Optimization of the meter placement ;  Sensitivity analysis to external disturbances;  The full characteristic of current-limiting fuses (CLF) [29].…”

Section: B Sub-cycle Fault Location Algorithmmentioning

confidence: 99%

Locating sub-cycle faults in distribution network applying half-cycle DFT method

Chen

Malbaša

Kezunovic

2014

2014 IEEE PES T&D Conference and Exposition

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It is necessary to accurately detect and locate subcycle faults in order to prevent unexpected outages. However, conventional fault location methods cannot locate these faults as typically data windows longer than the fault's signature are used for phasor extraction. This paper presents an overall analysis of how the single-phase-ground sub-cycle fault in the distribution network can be located using voltage sag. The half-cycle Discrete Fourier transform is used for phasor extraction in the timedomain simulations. Our results reveal that the proposed approach is capable of accurately locating sub-cycle faults whose duration is between 0.5 and 1.0 cycles. The results also suggest that the placement of meters may significantly affect the capability of the proposed approach to locate sub-cycle faults.Index Terms-Fault location, power distribution faults, power system faults, power system protection, smart grids.I.

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Section: B Sub-cycle Fault Location Algorithmmentioning

confidence: 99%

Locating sub-cycle faults in distribution network applying half-cycle DFT method

Chen

Malbaša

Kezunovic

2014

2014 IEEE PES T&D Conference and Exposition

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“…Therefore, if it is assumed that the maximum voltage sag is recorded during the CLF operation, the fault may be accurately located [34]. Global variance-based sensitivity analysis may be used to analyze the connection between uncertainty in inputs and outputs of a model.…”

Section: ) Overall Characteristic Of Current-limiting Fuses (Clf) [34]mentioning

confidence: 99%

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

Chen

Malbaša

Dokic

et al. 2014

2014 North American Power Symposium (NAPS)

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Single-phase-to-ground sub-cycle faults in the distribution network can be located using voltage sag fault location. This paper illustrates how a sensitivity study of measurement imperfections can be used to quantify the impact of sub-cycle faults on voltage sag based fault location. Our results suggest that there is a complex relationship between factors influencing error in fault location because the design of the study covered a wide range of conditions. The more complicated, higher order interactions have a stronger influence on error than any particular input factor alone.

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“…The load current during the fault is estimated using Eq. (2): (2) where, I RMS = the RMS current f = the frequency θ = the phase angle i replica = the estimated load current during the fault event All of the parameters are estimated using the pre-fault portion of the current waveform.…”

Section: A Duration Of the Eventmentioning

confidence: 99%

“…Current-limiting fuses are typically used where fault current is often very high and the damage to fuse-protected equipment caused by a fault would result in catastrophic failure [1] [2]. Current-limiting fuses attempt to prevent catastrophic failure by forcing fault current to zero in a short time (less than ½ of a cycle).…”

Section: Introductionmentioning

confidence: 99%

Unique waveform characteristics of current limiting fuse operations

Allen

Chopra

Santoso

et al. 2010

IEEE PES General Meeting

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This paper identifies and quantifies the unique characteristics of current-limiting fuse operation as seen in the current and voltage waveforms recorded at a monitoring station located upstream from the fault. Characteristics that can be used to identify current-limiting fuse operations by visual inspection are described. More characteristics are extracted using signal processing methods. These characteristics include but not limited to the duration of the event, point on the waveform where the event starts and ends, the rate of rise of the voltage and current at the start of the event, and the thermal energy in the fuse during the event. These methods are applied to data collected by a number of utilities and the results tabulated. In the future, the results can be used to automatically classify events that are recorded by power quality monitors.

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Empirical model of a current-limiting fuse using EMTP

Cited by 19 publications

References 6 publications

Locating sub-cycle faults in distribution network applying half-cycle DFT method

Locating sub-cycle faults in distribution network applying half-cycle DFT method

Sensitivity of voltage sag based fault location in distribution network to sub-cycle faults

Unique waveform characteristics of current limiting fuse operations

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