Ramadhan, Hendra Dwi (2017) Analisis Pemeliharaan Prediktif Transformator Daya Di Pt. Pln Gi Blimbing Malang Dengan Metode Markov. Sarjana thesis, Universitas Brawijaya.
Abstract
Skripsi ini membahas tentang pemeliharaan prediktif transformator daya menggunakan metode markov. Pemeliharaan ditentukan dari nilai keandalan berdasarkan TDCG (Total Dissolved Combustible Gases) serta nilai uji tegangan tembus. Untuk menentukan nilai keandalan dan nilai ketersediaan menggunakan metode markov yang perlu dihitung adalah laju kegagalan (λ) yang didapatkan dari perhitungan MTTF (Mean Time To Failure) dan laju perbaikan (μ) yang didapatkan dari perhitungan MTTR (Mean Time To Repair). Nilai keandalan transformator berdasarkan TDCG selama 30 hari didapatkan 0.914343, dan 365 hari sebesar 0.336376 maka terjadi penurunan nilai keandalan sebesar ± 8,56% setiap bulannya. Serta nilai ketersediaan dalam 1 tahun didapatkan nilai 0.622924 atau 227 hari dalam kondisi baik, dan 138 hari kondisi kurang baik. Sedangkan berdasarkan uji tegangan tembus selama 30 hari didapatkan 0.907756, dan 365 hari sebesar 0.308051 maka terjadi penurunan nilai keandalan sebesar ± 9,22% setiap bulannya. Serta nilai ketersediaan dalam 1 tahun didapatkan nilai 0.558322 atau 204 hari dalam kondisi baik, dan 161 hari kondisi kurang baik. Transformator bekerja pada hari ke-210 menjadi acuan dimana nilai keandalan tidak lebih buruk dari nilai peluang kegagalan sebesar 0.534272 untuk TDCG dan 0.507905 untuk uji tegangan tembus. Pemeliharaan sebaiknya dilakukan dalam waktu 210 hari kerja transformator agar nilai keandalan transformator selalu tinggi dan transformator tidak mengalami gangguan. Kata kunci: Keandalan, Ketersediaan, DGA, TDCG, Me
English Abstract
This thesis discussed about predictive maintenance of power transformers using the markov method. Maintenance determined from the reliability value based on TDCG (Total Dissolved Combustible Gases) and the value of the breakdown voltage test. To determine the reliability value and availability value using markov method, which needs to be calculated are the failure rate (λ) were obtained from the MTTF (Mean Time To Failure) and the rate of repair (μ) were obtained from the MTTR (Mean Time To Repair) calculation. The value of transformer reliability based on TDCG for 30 days is 0.914343, and for 365 days is 0.336376 so the value of reliability decreased by ± 8,56% per month. And the value of availability for a year is 0.622924 or for 227 days in good condition and for 138 days in less good condition. Meanwhile, based on the breakdown voltage test for 30 days obtained value is 0.907756 and for 365 days is 0.308051 then the value of reliability decreased by ± 9,22% each month. And the value of availability for a year is 0.558322 or for 204 days in good condition and for 161 days in less good condition. Transformer works on 210th day as reference when the reliability value is not worse than the value of probability of failure of 0.534272 for TDCG and 0.507905 for breakdown voltage test. Maintenance should be done within 210 working days of the transformer so that the value of the transformer reliability always high and the transformer will not experience disturbance.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2017/458/051705421 |
| Uncontrolled Keywords: | Keandalan, Ketersediaan, DGA, TDCG, Metode Markov |
| Subjects: | 600 Technology (Applied sciences) > 621 Applied physics > 621.3 Electrical, magnetic, optical, communications, computer engineering; electronics, lighting > 621.31 Generations, modification, storage, transmission of electric power > 621.314 Transformers |
| Divisions: | Fakultas Teknik > Teknik Elektro |
| Depositing User: | Nur Cholis |
| Date Deposited: | 05 Sep 2017 03:23 |
| Last Modified: | 07 Dec 2020 01:07 |
| URI: | http://repository.ub.ac.id/id/eprint/2085 |
Preview |
Text
Ramadhan, Hendra Dwi.pdf Download (17MB) | Preview |
Actions (login required)
 |
View Item |