31 3000 9080 e 2004 12

DRAWING/DOCUMENT STATUS A FOR REFERENCE 2006-04-10 First issue Steenmeyer DATE DESCRIPTION Bearb Coord Rev Liedtke Sudhoff Geprüft Checked APPD PROJECT : CAMAU 750MW COMBINED CYCLE POWER PLANT OWNER : OWNER’S ENGINEER : PETRO VIETNAM CPMB CONTRACTOR : CONTRACTOR’S ENGINEER : LILAMA CORPORATION FICHTNER SUBCONTRACTOR’S NAME : SUBCONTRACTOR’S SUPPLIER : s FEAG POWER GENERATION DRAWING TITLE : System Description Combustion Chamber Instrumentation PKZ UAS Contents Code Ursprung/Original Reg No UNID Urspr.-PKZ-Nr Orig.-PC Ursprung-Nr./Original-No Projekt/Project gezeich Drawn bearb Coord geprüft Checked Abtlg Dept PKZ/PC Datum Date Name 06-04-10 STEENM 06-04-10 LIEDTKE 06-04-10 SUDHOFF P415 sgd s AG POWER GENERATION CA MAU CCPP VIT154 Maßstab Scale UA/DCC Type Inhaltskennzeichen Contents Code N/A A4 Benennung/Title System Description Combustion Chamber Instrumentation Dienstst./Dept P415 UNID 423217078 XS00 MBM1 Zähl.-Nr Reg.-No Index/Rev 355020 Version A Blatt-Nr./Page-No CM1-L1-M-MBM1.08-355020 Erstellt mit/designed with Ersatz für Supersedes of Gas turbine Description of Auxiliary Systems Combustion Chamber Combustion Chamber Instrumentation Refer also to: “RELATIVE COMBUSTION DROP MAX” is annunciated Class: RESTRICTED Gas turbine trip is triggered immediately if GW3 is violated Siemens AG Power Generation 3.1-3000-9080/3 MBM 1204E-X Gas turbine Description of Auxiliary Systems Combustion Chamber Combustion Chamber Instrumentation sustains a channel fault the individual alarm “BURNER TEMPERATURE MONITORING FAULTED” is annunciated If a differential temperature exceeds the setting TT.BRENNER.U01 for a period of at least 1s during operation in diffusion mode, startup of the premix burners is blocked and the alarm “PM BLOCKED” is annunciated This interlock is deactivated when the differential temperature drops below TT.BRENNER.U01 If both thermocouples of a given burner are defective, the individual alarm “PM BLOCKED” is annunciated If this fault occurs during operation in FO PM, rapid changeover from FO PM → FO DM is initiated The machine cannot be returned to fuel oil premix mode until these channel faults have been rectified Burner Temperature Monitoring in Fuel Oil Premix Mode In the event of failure of/faults to one or both compressor thermocouples, a fixed value is used for calculating means instead of the defective measurement (max value selection) Ignition System Flames are ignited electrically Each burner is equipped with two ignition electrodes, their tips are located at the outlet of the NG diffusion burner Dedicated ignition transformers (MBM12GT001 to MBM12GT024) supply the voltage required for ignition to the spark electrodes of the respective burners When the ignition voltage is applied, an arc forms between the tips of the two electrodes Failure of Burner Temperature Monitoring A pretrip alarm is annunciated if individual temperature measuring points at the axial swirlers fail This does not restrict the availability of the machine, however If acquisition of one axial swirler temperature measurement Class: RESTRICTED The reproduction, transmission or use of this document or its content is not permitted without express written authority Offenders will be liable for damages All rights, including rights created by patent grant or registration of a utility model or design, are reserved If one differential temperature exceeds the setting TT.BRENNER.U01 during operation in FO PM for a period of at least one second, rapid changeover from FO PM → FO DM is initiated and the individual alarms “BURNER TEMPERATURE MONITORING RESPONSE”, “PM BLOCKED”, and “BURNER INSPECTION NECESSARY” are annunciated Changeover back to FO PM is blocked by an interlock Continued operation of the GT is permissible in FO diffusion mode as well as NG diffusion or NG premix mode Siemens AG Power Generation 3.1-3000-9080/4 MBM 1204E-X ... temperatures are calculated from the mean of the compressor outlet temperature and the temperatures at the axial swirlers If at least one differential temperature exceeds TT.BRENNER.M01, the individual... (acronym based on the German term) are generated from the average of the abovementioned measurements for acceleration monitoring purposes Siemens AG Power Generation − 3.1 -3000- 9080/ 2 MBM 120 4E- X Gas... flame cutout safety delay The evaluation units are equipped with changeover contacts and internal relays route the detected flame signals into the I&C system via the respective normallyopen relay