Enhancement of Traditional Maintenance Systems for Miniature Circuit Breakers Using Nanoparticles

Dessouky, Sobhy S.; Shaban, Mohammed; Abdelwahab, Saad A. Mohamed

doi:10.1109/mepcon47431.2019.9008008

Cited by 6 publications

(3 citation statements)

References 15 publications

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“…Ada tiga jenis MCB yaitu MCB tipe B atau tipe cepat (3In -5 In), MCB tipe C atau tipe sedang (5 In -10 In), dan MCB tipe D atautipe lambat (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20). Misalnya MCB D2 yang berarti rating arus nominalnya 2 A dengan kurva karakteristik tipe lambat (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) In) maka MCB tersebut akan merasakan adanya arus hubung pendek bila arus yang mengalir melaluinya sebesar 20 A -40 A dengan waktu kerja 0,01 detik [3]- [6].…”

Section: Pendahuluanunclassified

Rancang bangun dummy load media larutan NaCl untuk pengujian miniature circuit breaker dan thermal overload relay

Sunarto,

Hikmat,

Tohir

2024

JITEL

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Dummy load dengan media larutan NaCl merupakan salah satu beban tiruan yang dapat diterapkan untuk pengujian proteksi arus lebih. Pengujian karakteristik kerja komponen proteksi arus lebih dapat dilakukan dengan mengatur kedalaman elektroda di dalam larutan NaCl dan kadar NaCl untuk mendapatkan nilai arus listrik yang bervariasi. Penelitian ini bertujuan untuk mengembangkan alat praktikum proteksi tegangan rendah. Dummy load dengan media larutan NaCl digunakan untuk menguji karakteristik kerja proteksi arus lebih pada sistem tegangan rendah, salah satunya adalah miniature circuit breaker (MCB). MCB yang digunakan dalam penelitian ini adalah MCB tipe B2 yang memiliki kurva karakteristik kerja cepat, MCB tipe C2 yang memiliki karakteristik kerja sedang, dan MCB tipe D2 yang memiliki karakteristik kerja lambat. Metode yang digunakan dalam penelitian ini adalah metode rancang bangun dan untuk pengambilan data dilakukan dengan metode eksperimental. Hasil penelitian berupa dummy load fasa tunggal dengan media larutan NaCl.

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Section: Pendahuluanunclassified

Rancang bangun dummy load media larutan NaCl untuk pengujian miniature circuit breaker dan thermal overload relay

Sunarto,

Hikmat,

Tohir

2024

JITEL

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“…Hence, in [ 30 ], oil-based nanofluids were used to treat the carbonization occurring at the contact points of a molded case circuit breaker, with a positive impact on the electrical properties of this circuit breaker. Other studies by Dessouky et al used nanofluid as a practical application for the internal maintenance of miniature circuit breakers (MCB) and molded case circuit breakers (MCCB) as obvious in [ 31 , 32 ], respectively. However, no articles have investigated a potential real application of such nanofluids in power system apparatuses, namely circuit breakers.…”

Section: Introductionmentioning

confidence: 99%

Influence of Mineral Oil-Based Nanofluids on the Temperature Distribution and Generated Heat Energy Inside Minimum Oil Circuit Breaker in Making Process

et al. 2023

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The enhancement of the thermal properties of insulating oils has positively reflected on the performance of the electrical equipment that contains these oils. Nanomaterial science plays an influential role in enhancing the different properties of liquids, especially insulating oils. Although a minimum oil circuit breaker (MOCB) is one of the oldest circuit breakers in the electrical network, improving the insulating oil properties develops its performance to overcome some of its troubles. In this paper, 66 kV MOCB is modeled by COMSOL Multiphysics software. The internal temperature and the internally generated heat energy inside the MOCB during the making process of its contacts are simulated at different positions of the movable contact. This simulation is introduced for different modified insulating oils (mineral oil and synthetic ester oil) with different types of nanoparticles at different concentrations (0.0, 0.0025, 0.005, and 0.01 wt%). From the obtained results, it is noticed that the thermal stress on the MOCB can be reduced by the use of high thermal conductivity insulating oils. Nano/insulating oils decrease internal temperature and generate heat energy inside the MOCB by about 17.5%. The corresponding physical mechanisms are clarified considering the thermophoresis effect.

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“…The electrical power system engineering has designed to be able to quickly disconnect and isolate the fault area [1]- [3]. So, the disturbance does not have a direct impact on the system.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Oil Dielectric Strength Insulation on Oil Circuit Breakers Based on Service Life and Operating Frequency

Arya

Maharmi

Lutfi

2022

JOMAse

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The electricity distribution breakdown can be caused the service life and operating frequency of Oil Dielectric Strength (ODS). Hence, it requires a study due to the spare part is difficult to find. This paper aims to test the ODS on Oil Circuit Breaker (OCB) of 13.8 kV aged between 29 to 43 years. The test used the ASTM D1816 standard to analyze the effect of oil life and circuit breaker operating frequency on the physical, color and strength of ODS. For the visual test used the ASTM D1524 standard. The color test based on the ASTM D1500 standard. From the test results, it can be seen that 6DN F1 was yellow-black in colors. The color level was from 0.5 to 6, which was a striking color difference. This happens because it had been operating for 3 years with a frequency of 2 manual open times and 11 trips with a large normal load of 206A. In the 8D F7 feeder, there was also a decrease in breakdown voltage, which was far from 45.6 kV to 9.7 kV. Therefore, the oil was declared failed due to below the minimum standard of 27 kV. Based the validity test, the six samples were still within the allowable limits based on ASTM D1816 with the range value being below 92%. This means that the six samples were valid.

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Enhancement of Traditional Maintenance Systems for Miniature Circuit Breakers Using Nanoparticles

Cited by 6 publications

References 15 publications

Rancang bangun dummy load media larutan NaCl untuk pengujian miniature circuit breaker dan thermal overload relay

Rancang bangun dummy load media larutan NaCl untuk pengujian miniature circuit breaker dan thermal overload relay

Influence of Mineral Oil-Based Nanofluids on the Temperature Distribution and Generated Heat Energy Inside Minimum Oil Circuit Breaker in Making Process

Analysis of Oil Dielectric Strength Insulation on Oil Circuit Breakers Based on Service Life and Operating Frequency

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