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Lightning Arrester pada MV Switchgear

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Yulianti
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Posted: ‎2021-11-21 07:57 PM

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Posted: ‎2021-11-21 07:57 PM

Lightning Arrester pada MV Switchgear

Pak @HelvinHermanT ,

 

Mohon informasi IEC standard yang dipakai untuk Lightning Arrester pada panel MV switchgear ? 

Mohon dijelaskan fungsi LA pada cubicle terpisah pada rangkaian panel substation MV dan juga jika LA dipasang pada cubicle incoming panel MV ?

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HelvinHermanT
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Posted: ‎2021-11-22 05:42 PM . Last Modified: ‎2021-11-27 06:20 AM

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Posted: ‎2021-11-22 05:42 PM . Last Modified: ‎2021-11-27 06:20 AM

@Fikri_Ferdiana @taqin @Dwinanto_Setyadi 

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Posted: ‎2021-11-27 06:11 AM . Last Modified: ‎2021-11-27 06:20 AM

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Posted: ‎2021-11-27 06:11 AM . Last Modified: ‎2021-11-27 06:20 AM

Hi Bu, Terima kasih atas pertanyaannya.

 

Dari penelusuran saya, untuk Lighthing Arrester atau dikenal juga dengan surge arrester diatur pada IEC 60099

 

IEC 60099-4 Surge arresters – Part 4: Metal-oxide surge arresters without gaps for a.c. systems

IEC 60099-5 Surge arresters – Part 5: Selection and application recommendations.

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Posted: ‎2021-11-27 06:59 AM

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Posted: ‎2021-11-27 06:59 AM

IEC 60099-5 clause 6.2.5.2.3  AIS substations; Incoming surges from lightning strikes on lines,- Substation Air Insulated

IEC 60099-5 clause 6.2.5.2.6 Arrester protection of gas insulated switchgear (GIS) substations - Substation Gas Insulated 

IEC 60099-5 clause 6.3.2 General procedure for the selection of surge arresters - Panduan untuk pemilihan Surge Arrester

 

Pak @Dwinanto_Setyadi Jika ada yg mau ditambahkan.

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Dwinanto_Setyadi
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Posted: ‎2021-11-28 04:00 PM

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Posted: ‎2021-11-28 04:00 PM

terimakasih pak Helvin 

 

kalau lihat pertanyaan awal bahwa bagaimana applikasi LA pada panel MV yang di pasang dalam panel dan dipasang terpisah sebagai sebuah enclosure , penjelasannya adalah apabila sebuah system ( line busbar utama  MV )  sebaiknya sisi Incoming di pasang LA yang menjadi satu kesatuan dalam panel , gambaran sederhana nya adalah di pasang sedekat mungkin dengan titik masuk power,  Karena adanya LA akan mengamankan line up tersebut dari gangguan pada surge tegangan. sehingga peralatan lainnya aman , dan LA nya yg rusak , karena itulah fungsi utama LA .

 

pada saat system sudah terpasang dan tidak memungkinkan dipasang pada sisi incoming maka LA di posisikan untuk melindungi main busbar dan peralatan lainnya dari surge sebagai unit tersendiri

 

perlu di lihat juga karakter jaringan dan pola operasi karena surge dapat di akibatkan dari berbagai sebab , switching , petir dan sebagainya. sehingga pemilihan applikasi LA sesuai dengan kaidah dan IEC yang mengatur nya 

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Posted: ‎2021-11-28 11:01 PM

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Posted: ‎2021-11-28 11:01 PM

Pak @Dwinanto_Setyadi ,

 

Terima kasih atas balasan bapak.

 

Jadi pada saat awal mendesign MV substation sebaiknya LA dipasang pada cubicle tersendiri (contoh pada panel SM6 GAMLA) ya pak ? Jika design LA pada cubicle incoming (contoh pada panel SM6 DM1-A + LA), LA disini hanya memproteksi panel incoming saja ya pak ? 

 

Pertanyaan lain : Apakah LA ini kebutuhannya sangat penting, sehingga harus selalu ada dalam design panel MV switchgear untuk new building project ? 

 

 

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Dwinanto_Setyadi
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Posted: ‎2021-11-28 11:49 PM

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Posted: ‎2021-11-28 11:49 PM

memang sebaiknya demikian , namun design yang baik juga perlu komprehensif review termasuk bagaimana systemnya akan mendapat supply , kondisi jaringan dan bagaimana potensial gangguan yang ada. 

 

karena equipment nanti adalah sebuah konsekwensi dari kebutuhan sesuai dengan design 

 

menjawab pertanyaan apakah LA ini sangat penting , kembali ke design yg direncanakan seberapa perlindungan system yg akan dibangun dari gangguan surge dan gangguan yang lain, jika di gedung ada standard yang mengatur tersendiri terkait dengan design MV untuk applikasi gedung dan bangunan tentunya konsultan nya punya dasar dan referensi yang sesuai.

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