Veski Products Brochure

vibration expert systemsconsultinGsystem desiGnproduct brochureComputerized Diagnostic SystemSolutions onlySolutions onlyPredictive maintenanceon-line monitoring system installed in power production plants ensures con-tinuous monitoring of exploitation and is a critical step toward predicting me-chanical behaviour. the real benefit is the predictive capability for malfunc-tions and identification of irregulari-ties in system behaviour which can sig-nificantly improve repair planning and scheduling and can also prevent addi-tional damage from occurring.modern monitoring systems include vibration monitoring, monitoring of electrical parameters and process pa-rameters (temperatures, pressures, flow etc.). system must include continuous measurement, trending and database creation of all measured data. sub-stantial and well structured database ensures organized and cost effective maintenance planning. repair works based on the exploitation state can significantly reduce the maintenance cost, up to 50 %. modern monitoring systems are based on network communication and data transfer with other systems installed in power plants using standard industrial protocols (modbus, profibus).codiS machine condition monitoring SyStemcodis is condition monitoring and diagnostics system used for early warning and pre-dictive maintenance of rotating machines in power plants and processing industry. codis architecture includes safety system (codis rt), diagnostic monitoring (codis dm), transient recorder and electrical quantities monitoring (codis tr) and rotor monitoring (codis rm). each module runs separately or in combination with others.the key advantage is that codis based on open software architecture which enables flexible configuration of the system, easy customization for end user and simple future upgrades.BenefitS of condition monitoring• Efficient repairs• Better maintenance planning• Permanent change detection• Damage prediction • Damage prevention• Fault diagnosis and detectiondiagnostic monitoring transient recorder rotor monitoring Safety system- vibration monitoring- electrical quantities- processing quantities- temperatures- monitoring of electrics and fault detection- mechanical and electrical quantities- rotor thermal map- vibration and mechanical quantitiesapplication application application applicationthermal and Hydro generatorsHigh voltage motorsthermal and Hydro generatorsswitchgear equipmentHydro generators thermal and Hydro generatorsHigh voltage motorscodiS architecture „codiS rt” is operating on reconfigurable i/o national Instruments CompactRIO FPGA technology as an executive unit. it is a high priority level system used for continuous data acquisition, on-line data analysis and safety functions.system is responsible for analog input, digital or relay output, analog output (voltage or current) and is time syn-chronized using sntp time synchronization protocol via ethernet.communication and data exchange are based on stan-dard industrial protocols such as modbus or profibus. codis monitoring is based on rugged national instruments compactrio technology as processing and data acquisi-tion hardware running on rt operating system.controllers are used for safety purposes and high priority tasks such as machine shutdown, communication with scada and control systems.server pc running on Windows os are used for off line analysis, database storage and data distribution to remote users.remote users have client software installed or connect to remote pc web access to client software on remote pc on the network.Computerized Diagnostic SystemSolutions onlySolutions only„codiS dm” is diagnostic part of the system and is used to create history database of all measured val-ues and created events. system is based on Windows os and server pc using sQl database.in this way, the system creates a database of each measured signal continuously while in operation con-stantly obtaining data from rt unit. diagnostic moni-toring module codis dm is used for predictive main-tenance, to detect permanent changes in machine performance and to track the condition changes in early phase.diagnostic monitoring provides continuous on-line data analysis, database recording and is responsible for data distribution to client users.each event is archived and user has capability to track all the changes and apply diagnostic tools to extract the essential information and highlight the problem.Standard data analySiS toolS:• Bode plot, Nyquist plot, • 2D and 3D orbit analysis, • 2D and 3D shaft centerline• Run Out Compensation, • Air Gap polar plot and stator geometry• Magnetic field pole profile• FFT spectrum, CPB spectrum• Waterfall spectrumexPert data analySiS toolS: • Bearing and structure stiffness identification• Critical speed identification• Statistical analysis of machine operation• Torsion vibrations identification„codiS tr”, transient recorder continuously acquires all the significant signals for behavior monitoring of the target object when transient in the electrical signals (generator currents) occurs. codis tr records waveforms of all measured data (electrical and mechanical signals can be included) for a pro-grammed period of time with pre triggering of 1 s. recording is triggered by fast changes in generator currents or power grid currents. in addition, all significant signals monitored in vector diagnostic monitoring can in parallel be monitored in transient monitoring. off line analysis are included as part of diagnostic tools used to detect the nature or the source of created event (spectrum, power analysis, vibrations analysis caused by electrical faults etc.).Standard data analySiS toolS:• Transient detection with vibration signals in addition • Power quality• Generator load angle• Torsion magnetic field stiffness „codiS rm”, rotor monitoring unit, is wireless diagnostic monitoring of quantities measured directly on the rotor of hydro generator.this is unique solution for monitoring of rotor quantities using wireless technology to autonomously acquire and analyze data in rotation.codis rm is used to monitor temperature of rotor pole windings, excitation current and voltage, magnetic field and even air gap (used to obtain the real stator geometry by using only one sensor).system continuously records data of all signals measured on rotary part of power generator and through wireless communication is sending the data to server for permanent database storage.codis rm is used to obtain rotor thermal map measured directly on rotor pole windings.Standard data analySiS toolS:• Rotor temperature monitoring (thermal map)• Excitation current and voltage• Rectifier diode failure • Rotor insulation resistance• Air Gap and magnetic fieldantennaWireless rotor monitor - transmitterMonitored quantitiesHydro GeneratorComputerized Diagnostic SystemSolutions onlyMonitored quantities ‡ turbo GeneratorMonitored quantities ‡ turbo GeneratorSOFTWARE PANELSdataBaSe BroWSingtrend dataBaSe diSPlay (long term). hiStory, trendS:• Daily data storage• Operating condition filter display• Data export to ASCII• Print screen• Cursor displayrun uP/coaSt doWn dataBaSe diSPlay:• Each day has list of events• Off line analysis (Shaft centerline 2D and 3D, Nyquist, 2D and 3D orbits, RunOut compensation,...)alarm overvieW/State overvieW• Waveform display• Spectrum analysis (CPB, Waterfall)• Order analysis (Orbit display)• Air gap analysis (Stator geometry, Rotor geometry, eccentricity)• Magnetic field (Pole profile, pole winding short circuit detection)main Panel/real time diSPlay• Display of main operational parameters for each unit• Vibrations• Process quantities• Air gap minimum• Magnetic field • Alarm indication• Navigation buttonsthis display can be completely tailored to customer needs.detailed machine diSPlay/real time diSPlaytab control separated by groups:• Vibrations (Relative shaft vibrations, Absolute bearing housing vibrations)• Process quantities (Active power, Reactive power, Head, Flow, Pressures)• Temperatures• Air gap/Magnetic field (pole profile, eccentricity)each signal is trended in 10 minute real time trends for quick overview Solutions onlyveski ltdDragutina Golika 6310 000 Zagreb, croatiaTel: +385 1 3667 133Fax: +385 1 3667 155e-mail: veski@veski.hrWeb: www.veski.hrISO 9001Q-480