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Untuk MiCOM P122, maksudnya Time Tolerance operasional untuk ambang batas I>, I>> dan I>>> adalah +/- 2% +30...50ms.?

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Anonymous user
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Posted: ‎2021-09-29 08:11 AM

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Posted: ‎2021-09-29 08:11 AM

Untuk MiCOM P122, maksudnya Time Tolerance operasional untuk ambang batas I>, I>> dan I>>> adalah +/- 2% +30...50ms.?

Saya ada pertanyaan mengenai MiCOM P122.

Dalam manual relai disebutkan bahwa Time Tolerance operasional untuk ambang batas I>, I>> dan I>>> adalah +/- 2% +30...50ms. Oleh karena itu, apakah benar bahwa toleransi negatif untuk kurva yang ditetapkan adalah 2% dari nilai yang ditetapkan. Begitupun untuk toleransi positif untuk kurva yang ditetapkan adalah 2% dari nilai yang ditetapkan ditambah 50ms? Terima kasih.

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Posted: ‎2021-09-30 12:47 AM

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Posted: ‎2021-09-30 12:47 AM

Hi Pak @Anonymous user ,

 

Nilai time tolerance yang dimaksud adalah akurasi waktu kerja proteksi Overcurrent (I>, I>>, I>>>)  berdasarkan nilai setting waktu yang ditentukan.

 

Sebagai contoh kita menggunakan setting definite time 100 ms.

Maka waktu kerja proteksi yang sebenarnya adalah 100 ms +/- 2% +30...50 ms => antara 98 ms sampai 150 ms.

Nilai +2% digunakan mana yang lebih besar dengan 50 ms dikalikan setting waktu.

 

Semoga cukup jelas.

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Fikri_Ferdiana
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Posted: ‎2021-09-30 12:47 AM

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Posted: ‎2021-09-30 12:47 AM

Hi Pak @Anonymous user ,

 

Nilai time tolerance yang dimaksud adalah akurasi waktu kerja proteksi Overcurrent (I>, I>>, I>>>)  berdasarkan nilai setting waktu yang ditentukan.

 

Sebagai contoh kita menggunakan setting definite time 100 ms.

Maka waktu kerja proteksi yang sebenarnya adalah 100 ms +/- 2% +30...50 ms => antara 98 ms sampai 150 ms.

Nilai +2% digunakan mana yang lebih besar dengan 50 ms dikalikan setting waktu.

 

Semoga cukup jelas.

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Anonymous user
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Posted: ‎2021-09-30 11:30 PM

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Posted: ‎2021-09-30 11:30 PM

jadi misalkan settingan di 100 ms, maka:
- Untuk toleransi negatifnya --> 100 ms - 2% x 100 ms = 100 ms - 2 ms = 98 ms
- Untuk toleransi positifnya --> karena 2% dari 100 ms, maka menggunakan 50 ms, sehingga --> 100 ms + 50 ms = 150 ms

Begitu ya Pak @Fikri_Ferdiana ?

 

Terima kasih.

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Fikri_Ferdiana
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Posted: ‎2021-10-01 12:22 AM

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Posted: ‎2021-10-01 12:22 AM

Betul pak @Anonymous user 

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Anonymous user
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Posted: ‎2021-10-05 09:22 PM

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Posted: ‎2021-10-05 09:22 PM

Paham Pak @Fikri_Ferdiana . Berarti untuk toleransi negatif pakai yang 2%, sedangkan untuk toleransi positif pakai 2% atau 50 ms, lebih besar yang mana ya.

Terima kasih banyak atas infonya!

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