gov 505e update
DESCRIPTION
DIgital Speed Turbine ControlTRANSCRIPT
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
505E WOODWARD DIGITAL GOVERNOR CONTROL
By : IsmailPT PUPUK KALTIM BONTANG
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505E DIGITAL GOVERNOR UNTUK EXTRACTION STEAM TURBINE
Berbasis 32 bit Microprocessor
Dapat di program , Satu desain
Berdiri sendiri / di hubungkan dengan alat lain
Umum
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Serial
Serial atau Hard wire
Komputer untuk konfigurasi
Serial
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Integrated dalam satu paket
2 Line (masing-masing 24 karakter )
30 fungsi tombol
Operator Control Panel ( OCP )
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Speed ( Load )
Extraction/Admission Pressure ( Flow )
Turbine Control Parameter
2 Modbus Port (RS 232, 422, 485)
Hardwire Connection
Komunikasi
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First Out Trip
Critical speed (2 speed Band)
Auto Start Seq. (Hot & Cold)
Peak Speed Indikasi (Overspeed trip)
Fitur Tambahan
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Program Mode
Run Mode
Service Mode
Normal Operating Mode
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Password
Program Mode : 1113
Service Mode : 1111
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Program Mode
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Program Mode digunakan untuk memilih opsi-opsi yang diperlukan untuk mengkonfigurasi control spesifik turbin aplikasi.
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Run Mode
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Run Mode digunakan untuk memonitor parameter parameter operasional saat turbine beroperasi dari start-up dan proses shutdown.
Service Mode
Service Mode digunakan untuk meningkatkan kinerja sistem operasi sementara unit sedang berjalan.
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2 Speed Input
6 Analog Input
12 Contact Input
4 Function Key
Control Input
Terminasi
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Dedicated
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Dua Actuator Output
Enam 4 – 20 mA Output
Enam Relay Output
Control Output
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Service Panel dan Key Pad
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Tombol Scroll
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Tombol Select
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Tombol Adjust
Tombol Run
Sebagai perintah start ketika unit dalam kondisi Ready to Start
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Tombol Stop
Tombol Reset
Untuk mereset Run Mode alarm dan shutdown. Denganmenekan ini akan mengembalikan control ke status (Controlling Parameter/Push Run or Program) saat shutdown
Memberi perintah control turbine shutdown (Run Mode), Perintah stop dapat di disable melalui Setting Service Mode (dibawah key option)
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Tombol 2/ACTR (Actuator)
Memasukan angka 2 atau posisi actuator (Run Mode)
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Tombol 3/CONT (Control)
Memasukan angka 3 atau menampilkan parameter yang sedang di kontrol (Run Mode)
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Tombol 4/CAS (Cascade)
Memasukan angka 4 atau menampilkan informasi Cascade kontrol (Run Mode)
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Tombol 5/RMT (Remote)
Memasukan angka 5 atau menampilkan informasi Remote Speed Setpoint (Run Mode)
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Tombol 6/LMTR (Limiter)
Memasukan angka 6 atau menampilkan informasi valve limiter (Run Mode)
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Tombol 7/SPEED
Memasukan angka 7 atau menampilkan informasi speed control (Run Mode)
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Tombol 8/AUX (Auxiliary)
Memasukan angka 8 atau menampilkan informasi auxiliary control (Run Mode)
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Tombol 9/KW (Load)
Memasukan angka 9 atau menampilkan KW/Load atauinformasi first stage pressure (Run Mode)
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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Tombol CLEAR
Untuk Masuk atau Keluar ke/dari suatu Mode
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Tombol ENTER
Memasukan nilai baru dalam program mode, danmemasukan secara langsung spesifik nilai setpoint dalan run mode
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Tombol DYNAMIC (+/-)
Mengakses dynamic setting kontrol parameter dalam posisiRun Mode
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Tombol ALARM (F1)
Menampilkan sebuah kondisi alarm ketika indikator LED tombol menyala (tekan tombol scroll untuk melihat alarm lainnya)
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Tombol OVERSPEED TEST ENABLE (F2)
Mengijinkan speed reference di naikan melebihi maksimumkontrol speed setpoint untuk melakukan test electrical ataumekanikal overspeed test.
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Tombol F3 dan F4 (Function Key)
Tombol yang dapat diprogram untuk fungsi yang lain
Tombol EMERGENCY SHUTDOWN
Memberikan perintah Emergency Shutdown ke Kontrol
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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KOLOM KONFIGURASI UTAMA
Turbine Start – Start mode, Idle/rated,Auto start sequenceSpeed Control – MPU dan Speed control dynamic settingSpeed Setpoint Value – Speed setpoint, overspeed Trip setpoint, Remote setpoint dan Critical bandOperating Parameter – Aplikasi generator, Local/RemoteExtraction/Adm Cntrl. – Extraction/adm ControlDriver Configuration – Driver Output (ACT)Turbine Performance Value – Ratio/Limiter, Steam MapAnalog Input – Analog Input OptionContact Input – Contact input option
Worksheet
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
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KOLOM KONFIGURASI TAMBAHAN
Function Key – F3 dan F4 Function KeyAuxiliary Control – Auxiliary ControlCascade Control – Cascade controlRead Outs – Analog Read Out Relay – Relay FunctionCommunication – Modbus Comminication
Worksheet
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RESTROKE ACTUATOR
Syarat
Control harus kondisi shutdown (Emergency shutdown swicth close)
Yakinkan TTV harus kondisi Close
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RESTROKE ACTUATOR
Ketentuan
Arus Maksimum actuator tidak dapat di adjust di bawahdari pada arus minimum actuator
Arus Minimum actuator tidak dapat di adjust lebih besardari pada arus maksimum actuator.
Driver 20-160 mA range 4-20 mA range
Over current 217 mA 26 mA
Under Current 5 mA 0.6 mA
Max Output Current range 10-200 mA 2-24 mA
Max Output Impedance 45 ohms 360 ohms
Min Stop Adjust Range 10-80 mA 2-20 mA
Max Stop Adjust Range 100-200 mA 10-24 mA
Restroke
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TURBINE START MODE
Manual start mode
Semi automatic start mode
Automatic start mode
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
STRAT PERMISSIVE
Sebuah contact input dapat diprogram sebagai sebuahStart permissive bila diperlukan
Setelah di tekan RUN maka contact start permissive tidakdiperlukan lagi
Biasanya diambil dari contact limit switch TTV
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ZERO SPEED SIGNAL OVERRIDE
505E dapat di konfigurasi manual atau auto
Bila auto maka lamanya zero override berdasarkan timer
Status logic zero override dapat ditampilkan di service mode
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START TURBINE
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Contact external shutdown harus close
Contact permissive start harus close (bila di konfigurasi)
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TURBINE START MODE
Mode Manual Start
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TURBINE START MODE
Mode semi Auto Start
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TURBINE START MODE
Mode Auto Start
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Critical Speed Avoidance
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
2 range critical speed
Speed setpoint tidak dapat di stop bila ada di critical speed
Idle / Rated
Setpoint akan ramp ke nilai idle speed set point
Setpoint akan ramp ke rated speed setpoint jika perintahrated di berikan
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AUTOMATIC START SEQUENCE
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AUTOMATIC START SEQUENCE
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Hot start ramp rate dan Hold time di pakai jika perintah RUN diberikan dan turbine telah shutdown dengan waktu lebih kecildari setting waktu HOT START
Cold start ramp rate dan Hold time dipakai jika perintah RUN diberikan dan turbine telah shutdown dengan waktu lebih lama dari setting waktu COLD START
Bila perintah RUN di berikan dan lamanya shutdown di antarasetting waktu HOT START dan COLD START, maka kontrol akanmenetukan starting rate dan hold time diluar setting
Work sheet
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AUTOMATIC START SEQUENCE
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Cold Start ( > xx HRS ) = 22 HRSHot Start ( < xx HRS ) = 2 HRSLow Idle Setpt = 1000 RPMLow Idle Delay ( Cold ) = 30 MINLow Idle Delay ( Hot ) = 10 MINHi Idle Stpt = 2000 RPMRate To Hi Idle ( Cold ) = 5 RPM/SECRate To Hi Idle ( Hot ) = 15 RPM/SECHi Idle Delay Time ( Cold ) = 30 MINHi Idle Delay Time ( Hot ) = 20 MINRate To Rated ( Cold ) = 10 RPMRate To Rated ( Hot ) = 20 RPMRated Setpt = 3400 RPM
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AUTOMATIC START SEQUENCE
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Apabila unit telah trip selama 12 Jam, 505E akan menambah parameter diantara Hot dan Cold dan memakai rate dan delay seperti berikut ini :
Low Idle Delay = 20 MINRate To Hi Idle = 10 RPM/SECHi Idle Delay = 10 MINRate To Rated = 15 RPM/SECHours Since Trip ( HRS ) = 12 HRS
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Speed Control
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Extraction Control
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Mengaktifkan Extraction Control
PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Manual Enable/Disable
Automatic Enable/Disable
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TURBINE START
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STEAM MAP
Steam map adalah sebuah bentuk grafik yang mewakiliuntuk range operasi dan pembatas pada sebuah ekstraksidan atau Admission steam turbin.
Saat turbin normal operasi dia harus berada didalamgaris steam amplop.
Ketentuan
Sebuah Map harus linear (semua garis harus lurus)
Garis ekstraksi/admission flow = 0% danekstaksi/admission flow = 100% harus di parallel, dangaris LP valve = 0% dan LP valve 100% harus diparallel.
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
RATIONING / LIMITER
HP = K1.S + K2.P + K3
LP = K4.S + K5.P + K6
Typical extraction steam map
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
Nilai MAX POWER adalah beban dimana S = 100 garis silang pada sumbu S (sekitar 13498 KW dalam contoh gambar diatas.
Nilai MAX HP FLOW adalah flow dimana HP = 100 garis silang pada sumbu HP (sekitar 95 T/H).
Titik A adalah dimana perpotongan garis P = 0 dan LP = 100 (MAX POWER @ MIN EXTRACTION ; HP FLOW @ MIN EXTRACTION).
Titik B adalah dimana perpotongan garis LP = 0 dan P = 100 (MIN POWER @ MAX EXTRACTION ; HP FLOW @ MAX EXTRACTION).
Titik C adalah dimana perpotongan garis LP = 0 dan P = 0 (MIN POWER @ MIN EXTRACTION ; MIN HP FLOW @ MIN EXTRACTION ).
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
PENGETESAN STEAM MAP
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PELATIHAN DIGITAL GOVERNOR CONTROLPOKJA HAR APPI BANDUNG, 5 - 9 APRIL 2010
A : Input S = and P = HP = LP =
B : Input S = and P =HP = LP =
C : Input S = and P =HP = LP =
D : Input S = and P =HP = LP =
E : Input S = and P =HP = LP =
F : Input S = and P =HP = LP =
G : Input S = and P =HP = LP =
H : Input S = and P =HP = LP =