Broken conductors protection system using carrier communication

Senger, Eduardo Cesar; Kaiser, Walter; Santos, Josemir Coelho; Burt, P.M.S.; Malagodi, Caius Vinicius Sampaio

doi:10.1109/61.852979

Cited by 30 publications

(22 citation statements)

References 2 publications

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“…The following observations are made from the Table 3. 1. In case of breaking of one of the phases of a feeder, for all the analyzed cases, the negative sequence component range is 50-100 % at any position after the breaking point, which coincided with the observations in [19]. 2.…”

Section: Simulation Resultssupporting

confidence: 78%

“…In a distribution system solely unbalanced load can cause permanent voltage unbalance even in absence of any fault. But zero sequence or negative sequence percentages does not exceed 5 % even in extreme unbalanced load conditions [19]. Hence the method proposed can distinguish between unbalanced load condition and HIFs.…”

Section: Proposed Methods For Hif Detectionmentioning

confidence: 95%

“…Two voltage unbalance conditions are monitored for the HIF (broken conductor) identification; however the characteristic quantity cannot be computed directly from the phase voltages. Earlier works have considered either positive sequence voltage drop or the percentage of negative and zero sequence voltage drops [18,19]. In this paper, the HIF detection has been done using both the quantities, the positive sequence voltage drop and the percentage of negative and zero sequence component voltage along with improved threshold values.…”

Section: Proposed Methods For Hif Detectionmentioning

confidence: 99%

“…Garcia-Santander et al [18] proposed a positive sequence voltage drop based HIF detection method, where the analysis is carried out for different high resistance values as well as for different grounding conditions of the substation transformer. Senger et al [19] described the HIF detection based on negative and zero sequence voltage components. The analysis is carried out for different load conditions and for different contact conditions of the broken conductor, with contact at the source side, contact at the load side and different values of the contact impedances.…”

Section: Introductionmentioning

confidence: 99%

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Voltage Based Detection Method for High Impedance Fault in a Distribution System

Thomas

Bhaskar

Prakash³

2015

J. Inst. Eng. India Ser. B

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High-impedance faults (HIFs) on distribution feeders cannot be detected by conventional protection schemes, as HIFs are characterized by their low fault current level and waveform distortion due to the nonlinearity of the ground return path. This paper proposes a method to identify the HIFs in distribution system and isolate the faulty section, to reduce downtime. This method is based on voltage measurements along the distribution feeder and utilizes the sequence components of the voltages. Three models of high impedance faults have been considered and source side and load side breaking of the conductor have been studied in this work to capture a wide range of scenarios. The effect of neutral grounding of the source side transformer is also accounted in this study. The results show that the algorithm detects the HIFs accurately and rapidly. Thus, the faulty section can be isolated and service can be restored to the rest of the consumers.

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Section: Simulation Resultssupporting

confidence: 78%

Section: Proposed Methods For Hif Detectionmentioning

confidence: 95%

Section: Proposed Methods For Hif Detectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Voltage Based Detection Method for High Impedance Fault in a Distribution System

Thomas

Bhaskar

Prakash³

2015

J. Inst. Eng. India Ser. B

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“…Voltage unbalance: This algorithm proposed in [94] is based on the assumption that when a conductor breaks, the primary voltages in the part of the feeder beyond the break point present unbalances which are much greater than those in normal conditions considering the unbalanced loads. Usually, in case of breaking of one phase of a feeder, the percentage of negative-sequence as well as of zero-sequence in the phase voltages beyond the breaking point are in the range from 50 to 100% (with respect to the positivesequence).…”

Section: Issuesmentioning

confidence: 99%

Fault Locating, Prediction and Protection (FLPPS)

Yinger¹,

Venkata²,

Centeno³

2010

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An algorithm with voltage inputs for detecting conductor breaks in radial distribution networks

Ostojić¹,

Stojanović

2021

Int Trans Electr Energ Syst

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The article presents a new algorithm for detecting conductor breaks in ungrounded radial distribution networks. The algorithm uses the instantaneous values of the phase-to-phase voltages, measured at the end of the radial line as input signals. As the first indicator of conductor break, the broken conductor index (BCI) was introduced. BCI is a phase comparator that indirectly estimates the angle between the phase-to-phase voltages by calculating the integral of the product of the instantaneous values. As an additional indicator of conductor break, the algorithm uses a comparison of the RMS values of the phase-to-phase voltages. The proposed algorithm testing was performed on a model of the radial distribution network with multiple lines modeled in the MATLAB/Simulink software package. Experimental testing of the presented algorithm was performed on a laboratory model of the test network.

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Broken conductors protection system using carrier communication

Cited by 30 publications

References 2 publications

Voltage Based Detection Method for High Impedance Fault in a Distribution System

Voltage Based Detection Method for High Impedance Fault in a Distribution System

Fault Locating, Prediction and Protection (FLPPS)

An algorithm with voltage inputs for detecting conductor breaks in radial distribution networks

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