Broken Conductor Fault Detection using Symmetrical Components in Distribution Power Systems - An Implementation Case

Joao, Diogo Vinicius; Souza, Hamilton G. B.; Martins, Marcos Aurélio Izumida

doi:10.1109/isgtlatinamerica52371.2021.9543045

Cited by 3 publications

(5 citation statements)

References 10 publications

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“…I g mathmatical = I g simulation (7) The results showed that the values of the phase shift to I g between the mathematical and MATLAB results are approximately 180 • for all fifteen cases of fault sites. The same results are formed using the other measurements to sequence currents I 1 and I 2 by Equations ( 8) and (9).…”

Section: Mathematical Resultsmentioning

confidence: 90%

“…In the mathematical analysis, Equation ( 5) was used to determine the ground current (I g ) from the sequence currents (I 0 ) measured by the Simulink program in the substation when the fault occurs in phase C. Using Equation ( 6), the mathematical results were written in Table 4. In Table 4, we noted that there is an equal absolute value of the ground current resulting from the fault in the two cases of taking measurements using the MATLAB program and the results through mathematical analysis as shown in Equation (7).…”

Section: Mathematical Resultsmentioning

confidence: 99%

“…The algorithm uses a radial line's end-measured phase-to-phase voltages as input signals. In [7], the study proposes an protection technology misses (30-50)% of BCF failures. This may lead to critical and dangerous situations that threaten the lives of citizens and animals and reduce the lifetime of the utility equipment.…”

Section: Power System Faultsmentioning

confidence: 99%

“…The algorithm uses a radial line's end-measured phase-to-phase voltages as input signals. In [7], the study proposes an Many studies have been done to enhance and detect the faults [2], where the detection technique example of open circuits and downed conductors shows: (1) A loss of phasedetection at pole-mounted switchgear. (2) Detection of blown high voltage (HV) fuses.…”

Section: Power System Faultsmentioning

confidence: 99%

“…The algorithm uses a radial line's end-measured phase-to-phase voltages as input signals. In [7], the study proposes an implementation of asymmetrical component logic that enhances traditional protection methods using a singlephase transformer. The authors in [8] present an approach based on the zero-sequence current's decreasing periodic components to locate a high impedance ground faulty line section.…”

Section: Power System Faultsmentioning

confidence: 99%

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A New Detection Method for Load Side Broken Conductor Fault Based on Negative to Positive Current Sequence

Al-Baghdadi

Kdair

Flaih³

2022

Electronics

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Faults in distribution overhead lines occur due to various reasons, such as rain, strong winds, lightning, and other natural causes. The protection from the load side broken conductor (LSBC) faults has been one of the biggest challenges in the power distribution network. The small current generated by the LSBC fault makes the traditional protection system unable to detect this type of fault. The danger of LSBC fault is still enormous; besides, the available works of literature addressing this issue face difficulties when applying it to the real power system. This paper proposes a new method for detecting LSBC fault using single-ended measurements to the overhead distribution lines. The detection method is based on the constant ratio of negative to positive sequence current measured at the feeder end. The proposed study is performed using MATLAB software to implement a real network as a case study and verified by mathematical analysis. According to obtained results, we demonstrated that the fault in the electrical network had been detected with 100% of feeder protection. The proposed method has the benefit of being applicable and compatible with the existing measurement equipment, even when used in conjunction with overcurrent and earth fault relay in the electrical substation. Therefore, the negative to positive sequence currents are powerful in aiding fault detection. The benefit of this approach is providing a suitable LSBC protection solution for utilities while also opening new prospects in fault detection techniques in the distribution system.

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Section: Mathematical Resultsmentioning

confidence: 90%

Section: Mathematical Resultsmentioning

confidence: 99%

Section: Power System Faultsmentioning

confidence: 99%

Section: Power System Faultsmentioning

confidence: 99%

Section: Power System Faultsmentioning

confidence: 99%

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