Resonant Voltages Reactor Compensated Extra-High-Voltage Lines

Priest, Katie; Ramirez, A. R.; Nowak, H.; LaForest, J. J.

doi:10.1109/tpas.1972.293432

Cited by 11 publications

(3 citation statements)

References 5 publications

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“…Also, it contains the peak values of these temporary overvoltages recorded after breaker opening. This figure has a very good accordance with the previous works done by matrix solution [8], [11][12][13][14] and EMTP [16]. Faults on the opened line lead to different resonant points from no-fault ones [13].…”

Section: Analysis With Linear Reactorssupporting

confidence: 89%

“…Previous measurements revealed that unusually high voltages and currents were experienced by the reactors when their associated circuit was disconnected from the system [10] which could damage them. Some papers previously developed a matrix analysis for deriving the general curves which show the resonance voltages versus the shunt compensations [8], [11][12][13][14][15]. Some others have used software like EMTP for studying the resonance conditions [16,17].…”

Section: Introductionmentioning

confidence: 99%

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Reactor Failure due to Resonance in Zahedan-Iranshahr Parallel EHV Lines, Analysis and Practical Solutions

Samimi

Abedini

Mostajabi

et al. 2014

APH

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A reactor winding has been damaged due to induction of resonance voltages on the de-energized circuit of two parallel 230 kV shunt compensated lines between Zahedan and Iranshahr. The phenomenon is modeled in PSCAD and the safe range of shunt compensation is derived. In this study the effect of various faults on the lines, the reactor saturation and corona dissipation are considered and the results are compared to the electrostatic no-loss method results. Various ways are examined for damping the resonance condition and the best solution is chosen.

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Section: Analysis With Linear Reactorssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Reactor Failure due to Resonance in Zahedan-Iranshahr Parallel EHV Lines, Analysis and Practical Solutions

Samimi

Abedini

Mostajabi

et al. 2014

APH

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“…Overvoltage occurs when one of the lines is open and the shunt reactor is in the inlet condition. At the same time, the second line is energized [12]- [14].…”

Section: Introductionmentioning

confidence: 99%

Skema Proteksi Resonansi Tegangan Lebih Saluran Udara Tegangan Ekstra Tinggi 500 kV

Imam Ghozali,

Mochammad Facta,

Abdul Syakur

2023

Jurnal Nasional Teknik Elektro dan Teknologi Informasi

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Pemasangan reaktor shunt pada ujung saluran udara tegangan ekstra tinggi (SUTET) rangkaian ganda 500 kV seringkali dilakukan untuk membantu mengatasi kenaikan tegangan akibat kapasitans saluran yang panjang. Namun, permasalahan tegangan masih mungkin terjadi, khususnya ketika proses penginjeksian tegangan di saluran transmisi baru yang telah terpasang, akibat adanya induksi tegangan dan penguatan parameter dari rangkaian lain di saluran yang sama yang telah terinjeksi terlebih dahulu. Permasalahan munculnya tegangan lebih ini menjadi makin pelik karena saluran dan reaktor shunt telah selesai terpasang, sehingga panjang saluran dan kapasitas reaktor shunt tidak mungkin diubah. Fenomena tegangan lebih dalam penelitian ini terjadi ketika satu rangkaian di saluran transmisi belum diinjeksi, tetapi reaktor shunt telah tersambung, sehingga saluran tersebut mendapat induksi dan penguatan dari rangkaian lain karena di saat yang sama rangkaian yang kedua telah terinjeksi tegangan kerja. Dalam upaya mengatasi kondisi tegangan lebih tersebut, dalam makalah ini dilakukan perubahan skenario manuver injeksi tegangan ke saluran, perubahan skema proteksi jika terjadi gangguan fase ke tanah, dan penambahan relai tegangan lebih. Perubahan skenario manuver injeksi tegangan dapat mengurangi tegangan lebih yang terjadi pada saluran yang belum terinjeksi tegangan hingga 31,9 kVp. Perubahan skema proteksi saat terjadi gangguan fase ke tanah dengan memerintahkan pembukaan circuit breaker (CB) reaktor shunt dapat menghindarkan terjadinya kenaikan tegangan pada fase yang tidak terganggu. Penambahan relai tegangan dilakukan sebagai antisipasi terjadinya tegangan lebih ketika ada gangguan pada saluran dan kondisi CB reaktor shunt tidak mampu membuka akibat gangguan internal.

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Modelling series capacitor reinsertion in AC studies

Ramirez¹,

Achilles²

1989

IEEE Trans. Power Delivery

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Resonant Voltages Reactor Compensated Extra-High-Voltage Lines

Cited by 11 publications

References 5 publications

Reactor Failure due to Resonance in Zahedan-Iranshahr Parallel EHV Lines, Analysis and Practical Solutions

Reactor Failure due to Resonance in Zahedan-Iranshahr Parallel EHV Lines, Analysis and Practical Solutions

Skema Proteksi Resonansi Tegangan Lebih Saluran Udara Tegangan Ekstra Tinggi 500 kV

Modelling series capacitor reinsertion in AC studies

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