MAINTENANCE PRACTICES & FEEDBACK
MAINTENANCE PRACTICES
&
FEEDBACK
COMPUTERISED MAINTENANCE MANAGEMENT SYSTEM
FEATURES
EQUIPMENT MANAGEMENTWORK MANAGEMENTBREAKDOWN MAINTENANCEPREVENTIVE MAINTENANCEPREDICTIVE MAINTENANCEOVERALL EQUIPMENT EFFECTIVENESSDOCUMENT MANAGEMENTMIS REPORTSPROJECT MANAGEMENTEXECUTIVE INFORMATION SYSTEMCALIBRATION & TOOLS MANAGEMENT SYSTEMINSPECTION MANAGEMENT SYSTEMKNOWLEDGE BASED SYSTEMFAILURE ANALYSISMATERIAL MANAGEMENT SYSTEMPROCESS AUTOMATION INTEGRATIONINTEGRATION WITH MOBILE DEVICESDATABASE CREATION
ANNUAL MAINTENANCE DATATEST / MEASUREMENT VALUESDISSOLVED GAS ANALYSIS
VIBRATION ANALYSIS
TEMPERATURE TRENDING ETC.,
HISTORY SHEETS BREAKDOWNREPORTS RESTORATION & ANALYSIS REPORTSINVENTORYSPARES SEGREGATIONREPORTING A FAILURE
ACKNOWLEDGE ALL ALARMSRECORD ALARMS AND RESETANALYZE & LOCATE FAULTINFORM RLDC ABOUT FAULT & CHANGE SCHEDULETAKE IR VALUE OF SUSPECTED EQUIPMENT (GEN, MOTOR)SYNCHRONIZE IF NORMALELSE CALL MAINTENANCE DIVISIONPREPARE TRIP REPORT AFTER RECTIFICATION PREPARE RESTORATION & ANALYSIS REPORTPREPARE HISTORY REPORT FOR RECORDDISTURBANCE RECORDER
DR IS A TOOL FOR ANALYZING PERFORMANCE OF POWER SYSTEM AND RELATED EQUIPMENT DURING AND AFTER MAJOR DISTURBANCES.RECORDING OF MONITORED INPUT IS INITIATED BY A POWER SYSTEM DISTURBANCE E.G. A RELAY PROTECTION TRIP.Pre fault recording time=0.02-0.98s in steps of 0.02s
Post fault recording time = 0.1-5s in steps of 0.1 s
BLOCK TRANSFORMER FAILURE
URI POWER STATION,
U-PH OF UNIT-3 ON 04/06/99
ALARMS:
BLOCK OVERALL DIFFERENTIAL TRIPPEDBUCHHOLTZ TRIPPEDNEGATIVE SEQUENCE STARTEDREVERSE POWER RELAY STARTREASONS:
INTERTURN SHORT CIRCUIT IN HV WINDINGEVENT LOGGER PRINTOUT
DISTURBANCE RECORDER PRINT OUT
DIAGRAM TO HELP ANALYSIS OF INTERTURN FAULT
a2
a1
b2
b1
c2
c1
C1
C2
B1
B2
A1
A2
ANALYSIS
Ratio test shows 1 or 2 % of turns of HV winding short circuited.No big change in line current of U-ph as compared to other phasesPeak value of current before CB tripU-ph:7273 A
V-ph:7162 A
W-ph:7537 A
shows negative sequence protection start.
Reverse power startTHANKS
EQUIPMENT MANAGEMENT
Hierarchical structure of equipmentGraphical representation of entire facilityAttachment of OEM & Safety doc. With equipmentDefining specifications, properties, technical requirement, failure code & characteristics of equipmentEasy retrieval of equipment informationDefines spare part of the equipmentDefine measurement point & parameter for condition monitoringWORK MANAGEMENT
Generate work order for maintenance jobStandardise work procedureMaintain resource required for taskTrack claims & warrantiesProvides technical doc, drawing with work orderOVERALL EQUIPMENT EFFECTIVENESS
ANALYSIS OF SYSTEM WITH THE FOLLOWING PARAMETER:
AVAILABILITY
PERFORMANCE
TOTAL RUNNING TIME
INTERNAL & EXTERNAL STOPPAGE TIME
FAILURE TIME
TOTAL PRODUCTION
MTTR & MTBF
PROJECT MANAGEMENT
Organize project, subproject, and work order structure with unlimited complexityEstimate labor costsReserve and requisition materials, tools, equipment, and other resourcesCreate a master work order templateGenerate purchase orders based on projectsPlan for shutdownEXECUTIVE INFORMATION SYSTEM
THE BUILT IN KEY PERFORMANCE INDICATORS FOR ASSESSMENT OF PERFORMANCE OF THE MAINTENANCE SYSTEM. FUNCTIONALITY OF BALANCE SCORECARD TO ANALYZE THE PERFORMANCE OF OPERATION AND MAINTENANCE SYSTEM BOTH FROM FINANCIAL AND NON-FINANCIAL PERSPECTIVE.