The Development of DC Leakage Current Monitoring Device

Shi, Mingming; Miao, Huiyu; Fei, Juntao; Ge, Xuefeng; Xiao, Xiaolong; Wu, Fan; Pan, Yi

doi:10.1109/cieec54735.2022.9846800

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…Kendala yang sering muncul dalam penggunaan kabel ini adalah kegagalan dalam isolasinya, dimana hal itu mengakibatkan kebocoran arus di bagian kabel power trafo 20kV. Arus bocor merupakan besarnya nilai arus yang melalui kabel screen menuju tanah [3] dan arus bocor ini hanya dapat diketahui jika melakukan pengukuran menggunakan alat ukur.…”

Section: Pendahuluanunclassified

Perancangan Monitoring Arus Bocor Pada Ground Kabel Power Trafo Tenaga 150/20KV Berbasis HMI

Sirait,

Arisandi,

Sitorus

2024

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Transformator tenaga merupakan material transmisi utama pada Gardu Induk 150 kV, pada sisi sekunder transformator terdapat kabel ground untuk mendeteksi arus bocor yang terjadi pada kabel power 20kV. PLN menggunakan cara manual dalam melakukan pengukuran arus bocor pada kabel power 20kV secara periodik sehingga arus bocor pada kabel tidak terdeteksi secara dini. Peningkatan arus bocor kabel tanah pada transformator 150/20 kV dapat menimbulkan gangguan pada penyaluran listrik. Penelitian ini merancang alat monitoring arus bocor kabel tanah pada transformator 150/20 kV secara realtime. Arus bocor ini dideteksi dengan menggunakan sensor arus SCT-013 5A dan diolah oleh Arduino mega 2560, kemudian ditampilkan pada HMI (Human Machine Interface). HMI yang digunakan dalam pengukuran arus bocor kabel tanah pada transformator 150/20 kV memanfaatkan aplikasi VTScada. Hasil pengujian menunjukkan bahwa ground kabel power trafo 4 GI Semen Baru 150kV masih dalam kondisi normal dan layak beroperasi karena nilai arus yang terbaca tidak ada yang lebih dari 1 Ampere. Perbandingan hasil pengujian alat dengan tang ampere menunjukkan rata-rata error pembacaan nilai arus dari alat sebesar 2,92%. Arduino Mega 2560 sebagai pusat pengendali alat mampu bekerja sesuai dengan program yang telah dimasukkan dan penggunaan aplikasi VTScada sebagai HMI berhasil dijalankan dengan pengujian berupa telemetering dan telesignaling.

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Section: Pendahuluanunclassified

Perancangan Monitoring Arus Bocor Pada Ground Kabel Power Trafo Tenaga 150/20KV Berbasis HMI

Sirait,

Arisandi,

Sitorus

2024

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“…An alternating current signal is added to the magnetic core, so the direct current of the DC power system can be extracted on the secondary side of the transformer. The current transformer is shown in Figure 3 (Chen and Sun, 2018;Xie et al, 2016;Shi et al, 2022).…”

Section: Distributed Online Insulation Monitoring Transformermentioning

confidence: 99%

A novel distributing–collecting on-line insulation monitoring system and line selection technology for the DC supply system

Feng,

Ye,

Gao

et al. 2023

Front. Energy Res.

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At present, the power supply system of 5G base stations is a micro smart grid, it generally uses 240 V DC power supply with multiple branches, and leakage accidents will threaten personal and property safety, so it is vital to identify the fault line accurately and remove the faults rapidly. In this paper, the leakage phenomenon of transmission lines in the HVDC power supply system of a 5G communication base station is studied. To address the issue of multi-branch line leakage diagnosis and line selection in the 240 V DC system, a new distributed DC insulation monitoring and fault line selection technology and system are proposed. The distributed DC insulation monitoring line selection technology is used to collect the leakage current of each branch by setting a unique single-core DC leakage transformer and process the signal primarily. In addition, a high-resistance bridge switchgear is added to the bus bar. According to different leakage currents caused by the imbalance of the bridge before and after the switch, the insulation resistance of electrodes to the ground is calculated accurately, which solves the problem that the current technology cannot judge the fault of the positive and negative electrodes to the ground at the same time. Through both simulation and prototype experiments, the feasibility of this technology and system device in line insulation monitoring and line selection of the HVDC communication base station power supply system is verified.

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A Novel DC Leakage Current Sensing Method for Low-voltage Parallel Low-Voltage AC-DC Hybrid Distribution Networks

Yang,

Fu,

Bai

et al. 2023

2023 3rd International Conference on Energy Engineering and Power Systems (EEPS)

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The Development of DC Leakage Current Monitoring Device

Cited by 3 publications

References 6 publications

Perancangan Monitoring Arus Bocor Pada Ground Kabel Power Trafo Tenaga 150/20KV Berbasis HMI

Perancangan Monitoring Arus Bocor Pada Ground Kabel Power Trafo Tenaga 150/20KV Berbasis HMI

A novel distributing–collecting on-line insulation monitoring system and line selection technology for the DC supply system

A Novel DC Leakage Current Sensing Method for Low-voltage Parallel Low-Voltage AC-DC Hybrid Distribution Networks

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