Wijaya, Muhammad Septian (2021) Studi Metode Failure Mode Effect Analysis (FMEA) Untuk Evaluasi Tahanan Kontak Dengan Synchronization Test Pada Circuit Breaker Tegangan Tinggi Di GITET 500KV Krian. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Dalam penyediaan energi listrik yang handal dan efisien, Gardu Induk merupakan salah satu komponen pada sistem penyaluran tenaga listrik yang mempunyai peran yang sangat penting. Salah satu peralatan pada gardu induk yang memiliki peranan penting adalah circuit breaker (CB). Salah satu hal yang mempengaruhi keandalan tersebut adalah nilai tahanan kontak yang tinggi.
Dengan naiknya tahanan kontak, penelitian kali ini akan menganalisis sebab kenaikan nilai tahanan kontak dengan metode Failure Mode Effect Analysis (FMEA). Merupakan metode penalaran dampak dari semua kemungkinan kegagalan yang mengakibatkan kenaikan tahanan kontak tersebut. Lalu dilakukan penarikan cause effect jika sudah menjabarkan semua kemungkinan kegagalan tersebut. Cause effect yang merupakan pengujian utama yang dilakukan adalah synchronization test. Dimana merupakan pengujian keserempakan pada kontak saat open/ close. Selain synchronization test ada cause effect lainnya yaitu umur peralatan , thermovision, dan visual inspection.
Setelah melakukan pengujian dan analisis didapat kenaikan nilai tahanan kontak pada CB 7B2 dengan nilai kenaikan tahanan kontak pada fasa R sebesar 19,7 µΩ, fasa S sebesar 4,8 µΩ, dan fasa T sebesar 6,9 µΩ. Sehingga dilakukan pengujian keempat cause effect kemudian dianalisis dengan 10 langkah metode FMEA dengan hasil bahwa dari keempat cause effect, yang paling berpengaruh kenaikan nilai tahanan kontak adalah thermovision dengan nilai Risk Priority Number (RPN) sebesar 280. Namun ketika dihitung menggunakan metode Uji Normalitas dan Uji Hipotesis mendapatkan hasil yaitu synchronization test dan thermovision sebagai penyebab kenaikan nilai tahanan kontak, hal ini bisa menjadi perbandingan dari perhitungan RPN dan uji normalitas & uji hipotesis. Kemudian dianalisis load flow yang mempunyai nilai line-loss yang paling besar pada arah Ngimbang dan Gresik yang hasilnya sama besarnya dengan nilai tahanan kontak pada CB 7B2.
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In providing reliable and efficient electrical energy, Substation is one of the components in the electricity distribution system which has a very important role. One of the equipment at the substation that has an important role is a circuit breaker (CB). One of the things that affects this reliability is the high value of contact resistance.
With the increase in contact resistance, this research will analyze the reasons for the increase in the value of contact resistance using 10 steps of the Failure Mode Effect Analysis (FMEA) method. It is a method of reasoning the impact of all possible failures that result in an increase in the contact resistance. Then the cause effect is drawn if the failure has been described. Cause effect, which is the main test performed is the synchronization test. Which is a test of synchronization of contacts when open / close. Apart from the synchronization test, there are other cause effects, namely equipment life, thermovision, and visual inspection.
After testing and analysis, it was found that the value of contact resistance on CB 7B2 increased with an increase in the value of contact resistance in the R phase of 19.7 µΩ, the S phase of 4.8 µΩ, and the T phase of 6.9 µΩ. So that testing of the four cause effects was then analyzed using the FMEA method with the results that of the four cause effects, the one that had the most influence on the increase in the value of contact resistance was thermovision with a Risk Priority Number (RPN) value of 280. However, when calculated using the Normality Test and Hypothesis Test methods, the results are synchronization test and thermovision as the cause of the increase in the contact resistance value, this can be a comparison of the RPN calculation and normality test & hypothesis testing. Then the load flow was analyzed which had the largest line-loss value in the Ngimbang and Gresik directions, which resulted in the same magnitude as the contact resistance value in CB 7B2.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Tahanan Kontak; Failure Mode Effect Analysis; Synchronization Test; Contact Resistance; Failure Mode Effect Analysis; Synchronization Test |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK201 Electric Power Transmission T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK351 Electric measurements. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105 Data Transmission Systems |
| Divisions: | Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20101-(S2) Master Thesis |
| Depositing User: | Muhammad Septian Wijaya |
| Date Deposited: | 15 Aug 2021 09:01 |
| Last Modified: | 15 Aug 2021 09:01 |
| URI: | http://repository.its.ac.id/id/eprint/86798 |
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