Development and applications of lightning arresters for transmission lines

Furukawa, Seiichi; Usuda, O.; Isozaki, Takahiro; Irie, Takashi

doi:10.1109/61.35639

Cited by 49 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Standar ini digunakan untuk gardu induk yang mempunyai tegangan 150 kV dengan ketinggian zona proteksi diatas 10 meter. Untuk pemasangan gardu induk dengan tegangan lebih tinggi dari 150 kV memerlukan persyaratan proteksi khusus [7].…”

Section: Gambar 1 Kawat Pentanahanunclassified

Studi Pengembangan Desain Zona Proteksi Petir pada Gardu Induk 150 kV Menggunakan AutoCAD

Yeral

Abduh

2019

J. Iim. Tek. Elektro

View full text Add to dashboard Cite

The increasing demand for electricity has raised the number of substations developed, one of them is 150 kV Duri Kosambi substation. The substation has a protection system that functions as a network safety system in the electric power distribution system caused by various kinds of disturbances, such as direct lightning stroke. The protection against lightning used in this 150 kV substation is ground shield wire (GSW). To determine the protection of the ground shield wire, it is necessary to design the lightning protection zone with the standard of Deutsches Institut fur Normung, Verband Der Elektrotechnik (DIN VDE) 0101, which is one of the largest technical-scientific associations in Europe originating from Germany. After obtaining the location and equipment's data of the Duri Kosambi substation, the radius of the protection area for various heights is calculated and the lightning protection zone is designed by using AutoCad. The result shows, that to protect equipments at a height of 13 meter, 9 meter and 5.752 meter, the radius of the protection area is 3.482 meter, 7.365 meter and 11.656 meter respectively. The results of this study indicate that all instruments in this 150 kV substation are in a lightning strike protection zone.

show abstract

Section: Gambar 1 Kawat Pentanahanunclassified

Studi Pengembangan Desain Zona Proteksi Petir pada Gardu Induk 150 kV Menggunakan AutoCAD

Yeral

Abduh

2019

J. Iim. Tek. Elektro

View full text Add to dashboard Cite

show abstract

“…Figure 2(b) shows the Norton equivalent circuits. Formulae (1,2) provide the admittances of the equivalent circuit and the equivalent source. Based on the simplified model in Figure 2(b), a simplified overhead ground line model can be deduced as Figure 2(c).…”

Section: A Analysis Of the Interference Currentmentioning

confidence: 99%

Power Frequency Interference and Suppression in Measurement of Power Transmission Tower Grounding Resistance

Zhou

Liu

Gong-xin

et al. 2015

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

Due to the electromagnetic induction between transmission lines and the associated grounding wires, a power frequency current is caused to flow into the ground network via the metallic tower, which may interfere with grounding resistance measurements. This paper analyses the mechanisms of this interference, and shows that power frequency interference becomes stronger at phase wire transposition towers. Grounding resistance measurement by the Variable Frequency (VF) method has been proven to be effective in dealing with power frequency interference. However, the test equipment based on the VF method is always deactivated when the external interference voltage exceeds a preset level in order to avoid false readings. This paper is aimed to tackle the problem by introducing a Reverse Phase Cancellation (RPC) method which acquires and processes the interference signal before generating a cancelling signal with the same amplitude and frequency and a phase which is exactly opposite in polarity. The paper proves that the RPC method represents an excellent improvement to the VF method as it retains the advantages of VF and avoids the trip-out of test equipment due to excessive interference.

show abstract

“…Generally, the gapped type lightning arrester is considered as the most practical in the existing technology. A lightning arrester with a series gap for transmission lines has been developed to prevent faults due to lightning [7]. Hence, the direct taping method that is implemented in this small scale system is comparable of surge arresters.…”

Section: mentioning

confidence: 99%