A novel characteristic design of distance relay to abolish effects of load encroachment and fault resistance

Prajapati, Shivani; Dholiya, Harshida; Wani, Umang; Patel, Jay

doi:10.1109/icpeices.2016.7853480

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Fault resistance could impact the apparent impedance that could be seen by the distance relay. The reach of the relay may travel out of the zone by causing an under‐reach operation because of the presence of fault resistance . In addition, the current amplitude during the fault is larger when the fault resistance is small compared to the current amplitude when the fault occurred with high resistance.…”

Section: Simulation Model and Results Testmentioning

confidence: 99%

Linear regression index‐based method for fault detection and classification in power transmission line

Musa

et al. 2018

IEEJ Transactions Elec Engng

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In this paper, a new algorithm is proposed for faults detection and classification in the power transmission line. The key of the proposed algorithm depends on the computing of the linear regression coefficient indices (LRCIs) of the three‐phase current signals. The proposed algorithm has constructed a rule as follows: when the system is running under the health condition, the LRCIs will be equal to zero; when the system is subjected to the fault condition, the LRCIs of faulted phases will be greater than zero. Different faults circumstances, such as different inception time, different fault resistances, and different locations, have been verified. Additional scenarios such as far‐end fault with high resistance, fault occurred near the terminal, fault considering variable loading angle, and fault at the presence of noise are also discussed. For each possible scenario of faults, the proposed algorithm required only the three‐phase current measurement of the local measurement. The proposed algorithm has demonstrated a reasonable time response, where the fault condition could be detected within a few milliseconds after the fault inception. Therefore, the proposed algorithm is quite suitable for faults detection and classification in power transmission lines. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Section: Simulation Model and Results Testmentioning

confidence: 99%

Linear regression index‐based method for fault detection and classification in power transmission line

Musa

et al. 2018

IEEJ Transactions Elec Engng

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“…It can be seen that the closed loop fault impedance measurement, specifically 𝑝𝑍 1𝑚 + 𝛥𝑍 1𝑚 , deviated from the actual measurement 𝑝𝑍 1𝐿𝑀 (blue color). The measurement error 𝛥𝑍 1𝑚 as a function of the 𝑅 𝐹 and 𝛿 𝐹 factors affected the measurement accuracy [20] and is illustrated in Figure 5(a). It can be seen that the change in the fault impedance value shifted to the right due to the addition of the 𝑅 𝐹 value, which could also cause the fault impedance value to shift up or down due to changes in the load flow angle 𝛿 𝐹 (magenta and cyan).…”

Section: Simulation Of Fault and Evaluationmentioning

confidence: 99%

Investigasi Kinerja Relai Proteksi Saluran Transmisi dengan Kompensator Seri

Nanang Rohadi,

Nendi Suhendi

2023

JNTETI

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Makalah ini bertujuan melakukan investigasi terhadap hasil pengukuran impedansi gangguan lingkar tertutup oleh algoritma relai jarak konvensional (tipe distance relay SEL-421) ketika digunakan sebagai alat proteksi pada saluran transmisi dengan kompensator seri dan sejumlah parameter ketidakpastian (faktor). Sejumlah faktor dari sistem dapat muncul secara bersamaan dan keberadaan kompensator seri dapat memengaruhi kinerja algoritma relai, terutama pada gangguan fase ke tanah. Sejumlah investigasi terhadap kinerja relai telah dilakukan. Namun, metode pengujian yang dikembangkan hanya mengubah satu faktor, dengan faktor lain dijaga konstan pada waktu bersamaan. Teknik ini tidak lagi relevan ketika tidak mempertimbangkan sejumlah faktor secara bersamaan, sehingga dapat memengaruhi kinerja relai saat terjadi gangguan. Untuk keperluan investigasi algoritma seperti dalam kondisi nyata, sejumlah skenario gangguan perlu dilakukan pada titik gangguan sebelum dan setelah kompensator seri, sambil sekaligus melakukan perubahan nilai dari sejumlah faktor pada model sistem secara bersamaan melalui simulasi gangguan. Pada penelitian ini, perangkat lunak DIgSILENT PowerFactory digunakan dalam pemodelan sistem daya dan simulasi gangguan. Rangkaian ekivalen Thevenin dengan dua sumber dan kompensator seri sebesar 42% diletakkan di tengah saluran transmisi sepanjang 300 km dengan tegangan sistem 400 kV untuk simulasi pengujian gangguan. Sejumlah skenario gangguan dan perhitungan impedansi gangguan sebagai fungsi perubahan nilai dari sejumlah faktor dilakukan secara otomatis. Simulasi pengujian otomatis dikembangkan melalui DIgSILENT Programming Language (DPL) untuk melakukan pembacaan sampel data yang dibangkitkan melalui perangkat lunak SIMLAB untuk sejumlah faktor. Kinerja algoritma relai untuk perhitungan impedansi gangguan tidak dipengaruhi oleh keberadaan kompensator seri ketika gangguan terjadi sebelum kompensator, tetapi sebaliknya ketika gangguan terjadi setelah kompensator. Pengubahan sejumlah faktor secara bersamaan memengaruhi akurasi relai dan menyebabkan kinerja relai memburuk untuk gangguan setelah kompensator, yaitu terjadinya kegagalan operasi relai berupa underreaching dan overreaching. Teknik pengujian yang dikembangkan diharapkan dapat digunakan sebagai alat bantu pengujian terkini untuk pengembangaan dan implementasi relai secara tepat dan seperti pada kondisi nyata.

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Effect of Infeed Current and Fault Resistance on Distance Protection for Teed-Feed line

Jagtap

Thakre

2020

2020 IEEE First International Conference on Smart Technologies for Power, Energy and Control (STPEC)

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A novel characteristic design of distance relay to abolish effects of load encroachment and fault resistance

Cited by 3 publications

References 8 publications

Linear regression index‐based method for fault detection and classification in power transmission line

Linear regression index‐based method for fault detection and classification in power transmission line

Investigasi Kinerja Relai Proteksi Saluran Transmisi dengan Kompensator Seri

Effect of Infeed Current and Fault Resistance on Distance Protection for Teed-Feed line

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