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ITS » Undergraduate Theses » S1 Teknik Elektro
Posted by aprill@is.its.ac.id at 27/03/2013 08:59:20  •  555 Views


STUDI KASUS SKEMA PROTEKSI ADAPTIVE OVER CURRENT PADA BEBAN AUXILIARY PLTU PERAK DENGAN MEMPERHATIKAN UNITS COGENERATION

CASE STUDY OF ADAPTIVE OVER CURRENT PROTECTION SCHEME AT AUXILIARY LOAD PERAK STEAM POWER PLANT WITH UNITS COGENERATION BASED

Author :
FIRMANSYAH, MOCHAMAD ANGGI  ( 2210105053 )




ABSTRAK

PLTU Perak sebagai salah satu pembangkit existing yang merupakan pembangkit termal. PLTU Perak dalam beroperasi membutuhkan peralatan-peralatan auxiliary untuk yang terdiri dari komponen pemindah panas pendingin pemindah fluida serta peralatan common-nya. Semua peralatan tersebut membutuhkan suplai energi listrik karena digerakkan oleh motor fan dan peralatan kontrol serta pengaman. Perlu dilakukan optimalisasi koordinasi system proteksi relay beban auxiliary PLTU perak sehingga selektifitas dan akurasian menjadi maksimal. Beban auxiliary PLTU Perak terdiri dari 3 tiga rating tegangan dengan masing-masing relay proteksi. Dalam kondisi beban maximum continous rate MCR atau beban nominal. Bebanbeban auxiliary akan beroperasi pada skema beban maksimum. Pada kondisi ini dilakukan resetting relay arus lebih yaitu adanya overlapping ketidaksesuaian grading time low setting dan high setting. Dengan adanya sistem cogeneration ini sistem proteksi arus lebih beban auxiliary harus pula mengakomodasi kondisi tersebut akibat nilai arus hubung singkat yang berbeda untuk setiap skema cogeneration. Studi ini akan dilakukan berdasarkan standar yang telah ada dan akan dilakukan secara konvensional dan secara adaptif.


ABSTRACT

One of them is Perak BGU as an existing thermal power plant. During operation Perak BGU requires auxiliary equipment components of heat exchanger cooler pump and others common equipment. Such equipment needs the supply of electric energy because it is moved by motor fan controller and safety equipment. The reliability and continuity of the energy distribution to the load is highly required. The failure of the electricity protection system upon such load will cause force outage of the power plant. Furthermore it can damage the equipment and require a long period of time for reparation. The maximization of protection system coordination in relay auxiliary load at Perak GBU is necessary. This is to make the selectivity and accuracy maximum. The auxiliary load of Perak GBU consists of three ratings of voltage. Each of them owns its relay of protection. In the load condition of Maximum Continuous Rate MCR or nominal load the auxiliary load will operate on its maximum load scheme. In this condition relay resetting of the current is done due to overlapping unsuitable grading time low setting and high setting. The cogeneration system must be accomodated by overcurrent relay protection because it have different value of short circuit current at each cogeneration scheme. This study is done based on the existing standards. It is also done in a conventional way and adaptive.



Keywordscogeneration; adaptif; auxiliary; hubung singkat
 
Subject:  sistem kontrol relay tenaga listrik sistem - perlindungan
Contributor
  1. Dr. Ir. Margo Pujiantara, MT
  2. Heri Suryoatmojo, ST, MT, Ph.D
Date Create: 12/07/2012
Type: Text
Format: pdf
Language: Indonesian
Identifier: ITS-Undergraduate-22001130002141
Collection ID: 22001130002141
Call Number: RSE 621.317 Fir s


Source
Undergraduate Thesis, Electrical Engineering, RSE 621.317 Fir s, 2013

Coverage
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Rights
Copyright @2013 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




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  1.  ITS-Undergraduate-24220-2210105053-Abstract_id.pdf - 186 KB
  2.  ITS-Undergraduate-24220-2210105053-Abstract_en.pdf - 183 KB
  3.  ITS-Undergraduate-24220-2210105053-Conclusion.pdf - 196 KB




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