Analisa Kinerja Relai Proteksi Pada Sistem Proteksi Transformator Daya 60 MVA di PT. PLN (Persero) Gardu Induk Buduran. (Performance Analysis of the Protection Relay in the 60 MVA Power Transformer Protection System at PT. PLN (Persero) Gardu Induk Buduran).

Hidayat, Syahril Taufiq (2023) Analisa Kinerja Relai Proteksi Pada Sistem Proteksi Transformator Daya 60 MVA di PT. PLN (Persero) Gardu Induk Buduran. (Performance Analysis of the Protection Relay in the 60 MVA Power Transformer Protection System at PT. PLN (Persero) Gardu Induk Buduran). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

Sistem proteksi yang terdapat pada relai OCR (Over Current Relay) dapat berguna sebagai sistem proteksi utama dan cadangan. Bisa disebut proteksi utama dikarenakan terjadinya gangguan hubung singkat terhadap penghantar, bisa disebut sebagai cadangan karena mengalami kegagalan dalam menerima arus gangguan hubung singkat. Untuk menyelesaikan perhitungan gangguan hubung singkat dan waktu kerja relai pada transformator daya 150 KV yaitu diketahui gangguan hubung singkat tiga fasa pada transformator 6, transformator 4 dan transformator 3 memiliki nilai yang sama yaitu sebesar 2611,11 A (Ampere). Nilai setiap sisi primer pada transformator memiliki nilai yang sama yaitu 277,2 A (Ampere). Waktu perhitungan pada sistem kerja relai OCR (Over Current Relay) yaitu bernilai TD (Time Dial) pada transformator 6 adalah 0,86 detik, transformator 3 adalah 1,1 detik, transformator 4 adalah 0,3 detik dan waktu kinerja relai pada saat respons yaitu bernilai TMS (Time Mean Squeare) pada transformator 6 adalah 0,3, transformator 3 adalah 0,37, dan transformator 4 adalah 0,1 memiliki karasteristrik yaitu standart invers

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