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Look closer our power system interconnection

Posted in Power Engineering by askramadhan on November 6, 2008

hello everyone, this is my first contribute to this blogsite.I want to give some information for you to about power system in Indonesia.Maybe this little information give you more comprehension about power system interconnection in indonesia especially in jawa-bali.

PT PLN PERSERO Penyaluran dan pusat pengatur beban (P3B ) Jawa-Bali is our state –owned electrical company and their function is to manage the energy from power plants to distribution system. Their framework is in transmission and load dispatch. P3B jawa – Bali controls energy that flows to 500kV , 150 kV and 70 kV interconnection system.

sistem-tenaga-listrik1

PT PLN P3B Jawa-Bali covers Java , Madura , and Bali islands and topology of their interconnection can be seen in picture below.

jawa-bali-topology1

kofigurasi-500-kv

Jawa – bali interconection was a big system. Their existing capacity is about 20.000 MW and peak load is around 16.000 MW. Electrical consumption in jawa –bali island has a unique charateristic. The load curve has big slope in afternoon at 5 p.m -10 p.m ( 17.00 – 22.00 )

kurva-beban

This system mostly controlled automatically and the control system located in gandul ,Jakarta. ( Jawa – Bali Control Center). The Dispatcher responsible of the energy flows to interconnected system and keep it stable when some trouble occurs in system.

jcc

P3B Jawa –Bali divided into 4 region. This region has same responsible like in Jawa –Bali Control Center and the region are:

- region 1 ( RJKT ) ; covers jakarta and Banten

- region 2 ( RJBR ); covers west Java

- region 3 ( RJTD ); covers central java and D.I.Y

- region 4 ( RJTR ) ; covers east java and Bali.

Thanks for your time to read this little information and I hope you enjoy that. See you in my post…

for further information you can look at www.pln-jawa-bali.co.id

Next post: electrical consumption in Indonesia

3 Responses

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  1. wahidyankf said, on November 7, 2008 at 11:04 am

    thanks for your sharing..it enhance my knowledge about power engineering…

    hm…so thats why we often heard the rules of 17-22???the slope is big enough than the other hours…

    wew…so jawa-bali control centre has a big screen like that?cool…hehe…

  2. Adrian Pramudito said, on November 12, 2008 at 12:55 am

    Wow…. Thanks for Your Info, really interesting… COuld you tell Us how do they work especially if one region is blackout, does it have a backup from other region??

  3. askramadhan said, on November 17, 2008 at 4:07 pm

    thanks for your question..

    when some area is black out the whole system affected by that disturbances.

    in this case when one area is black out, power generated from power plants couldn’t arrive to load center. so, power generated is bigger than power demand.

    when this happen occurs, system will overfrequency and system will be collapsed if several prevention couldn’t be done.

    i hope this short answer will be satisfied your question.but if you’re not satisfied you can ask me anytime..


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