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Published byAlvin Thornton Modified over 6 years ago
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Computerized Maintenance Management System (CMMS)
November 5, 2007 PSE&G INTERNAL USE ONLY
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Agenda Business Overview Functional Areas Condition Assessment
Criticality Electronic Inspection Process Reporting PSE&G INTERNAL USE
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Why CMMS? Calendar-based preventive maintenance & Reactive corrective maintenance faced the following challenges No predictive maintenance program or strategy Standardizing the equipment replacement strategy Significant liability risk and system outage potential from old equipment vulnerable to failure Limited assessment tools for determining asset condition and maintenance efficiency Decreasing expertise in both field maintenance and engineering PSE&G INTERNAL USE
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Evolution of CMMS Preventive Maintenance Corrective Capital Rep. Calendar-Based Failures Condition Based Past Present Capital Rep CMMS brings together existing and new technologies to address these challenges, as well as, providing the mechanism to shift maintenance activities from reactive to proactive through the use of multiple-method condition monitoring and trend evaluation PSE&G INTERNAL USE
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Opportunity for savings
Motivation Opportunity for savings PSE&G INTERNAL USE
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(Transformers, Load Tap Changers, High-Voltage Breakers and Relays)
Role of CMMS CMMS is a decision support system that assists in making repair/replace/maintain decisions. (Transformers, Load Tap Changers, High-Voltage Breakers and Relays) PSE&G INTERNAL USE
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Actions Collect data Centralize data Analyze data
Create Actionable Information Drive Results PSE&G INTERNAL USE
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Benefits of CMMS Centralized Asset Registry
More effective work scheduling Accurate repair histories More time on PM work than on costly emergency repairs Better utilization of capital budgets Improve Productivity Equipment Visibility Better Analysis of Asset Performance PSE&G INTERNAL USE
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Users System Matter Experts SAP Administrators LOB Administrators
Delivery Management Maintenance Managers Maintenance Supervisors Planner / Scheduler Maintenance Mechanics Substation Operators Chief Substation Operator / Operating Supervisor System Planners PSE&G INTERNAL USE
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CMMS Systems SAP PM Module CAD PI Historian (UDS) PI Module Database
PI Interfaces (PI-Batch, COM Connector, OPC) Sharepoint Services/RtWebParts SQL Server Business Object/Web Intelligence PI Client Applications (Datalink & Process Book) PSE&G INTERNAL USE
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SAP PM Module Asset Registry Generate Maintenance Plans (56k Plans)
Calendar-based Counter-based Condition-based Notifications Damage Codes grouped by Equipment Cause Codes PSE&G INTERNAL USE
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Primary Functional Areas of CMMS
Data Collection and Consolidation Diagnostic and Inspection Data Time-series Data Relational Data Asset Analysis and Reporting Condition & Criticality Assessment Equipment Ranking Work Priorization Maintenance Management Measurement Points Work Order Generations Maintenance Planning Data Collection Analysis & Reporting Maintenance Management Raw data Measurement points Notification Feedback PSE&G INTERNAL USE
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Data Collection PSE&G INTERNAL USE
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Interfaces PSE&G INTERNAL USE
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Analysis CM/PM Maintenance Analysis
Counter-based Conditions Condition-Based Indicators Peak Load Evaluation Ad-Hoc Reporting Analysis Maintenance Program Effectiveness Analysis Asset cost profile Asset maintenance profile Asset Failure-Code Analysis Capital replacement candidate identification Preventive Maintenance Prioritization Key Performance Indicators PSE&G INTERNAL USE
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Maintenance Management
SAP Counter-based Plans Define Measurement Points Create CBM Rules Activate Maintenance Plans Work prioritization Drive work planning Drive replacement planning Analyze Contingencies to determine impact of work PSE&G INTERNAL USE
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Condition Assessment (CA)
Analysis of available data to measure equipment condition Equipment Classes Transformers, Voltage Regulators & Phase Angle Regulators (981) Breakers (26kv and above – 1,400) Relays (11k) Load Tap Changers (420) Circuit Switchers (400) Each class consists of 1 or more peer groups Each peer group has a unique set of factors & weights PSE&G INTERNAL USE
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CA (Cont’) Equations Example factors include:
CA = F1(M1) + F2(M2) + F3(M3) + … Example factors include: Average Load over time period Last oil test results Total CM cost over 6 months Number of operations Factor components dependent on peer group Multiplier used to weight factor result Very flexible in terms of definition and composition PSE&G INTERNAL USE
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CA Requirements Correlate Operational and Relational Data to Equipment and Functional Locations Define peer groups and IPE asset registry Automatically update Equipment modules from SAP weekly download Automatically update peer group equipment from SAP weekly download and CMMS Business rules stored in SQL server Schedule calculations to be run on a periodic basis or on demand Store output results in SQL server or reporting purposes PSE&G INTERNAL USE
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Data Correlation Operational Data PSE&G INTERNAL USE
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Data Correlation (Cont)
Characteristic Data PSE&G INTERNAL USE
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CA Algorithms PSE&G INTERNAL USE
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CA Peer Groups PSE&G INTERNAL USE
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CA – Generator PSE&G INTERNAL USE
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Factor Types DB-SQL Query
PI Calculation (max, min, total, stdev, average, etc.) PI Counter (rollover & filter) PI Time Filter (transformer % normal load rating) Relay Order Costs (average cost to schema) PM Performance (PM performance compared to expected cycle) LTC Thru Neutral Fixed Value (constant) Passed Value (same DB-SQL w/no interpretation) PSE&G INTERNAL USE
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CA Data Sources SAP PM Module DeltaX Doble Diagnostic Data Collection
CM Order History Equipment Characteristics Measurement Documents Cause and Damage Codes Diagnostic Data Collection Megger, Ductor and Timing Tests PI Historian Weekly Inspection Counter and Runtime Readings Weekly Inspection Transformer Top Oil Temps Weekly Inspection Transformer Peak Amp Readings ESOC and MV90 Load Data Hydran PPM DeltaX Gas and Fluid Tests Doble Electrical Tests PSE&G INTERNAL USE
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CA Summary Report PSE&G INTERNAL USE
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CA Detail Report PSE&G INTERNAL USE
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CA Work Flow SME Review Top 10/20 Worst Assets SMEs Investigate
or Verify Data Results CA & Criticality Monthly Reports are Posted SME Works with the SAP LOB Admins. to Create Type C PM Work Orders Maintenance Department Schedules and Completes the Work Maintenance Supervisors Report their findings back to the SMEs SME Document Findings & Determine if Algorithms Need Updating PSE&G INTERNAL USE
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Criticality Equipment Classes
Transformers, Voltage Regulators & PARs (981) Breakers (all breakers – 4,900) Relays (11,000) Factors and weights are the same for each class Calculated via DTS from SAP data Algorithm F1(M1) + F2(M2) + F3(M3) + … Factors Age Size Voltage Load in # Normal Rating Type of Customer Impacted Replacement Cost PSE&G INTERNAL USE
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Work Prioritization PSE&G INTERNAL USE
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Diagnostic Data Collection
PSE&G INTERNAL USE
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Electronic Station Inspections
Triggers PIML/CAD Station Inspection - Measurement Points CBM Rules - Equipment SAP PM PM Orders Measurement Document Interface CMMS PI UDS PI ACE RLink Notifications MDT AT&T Wireless GPRS PSE&G INTERNAL USE
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Station Inspection Requirements
CAD/SAP Auto-generate weekly inspection orders with a due date of +7 days (SAP) Auto-generate monthly (customer) inspection orders with a due date of +30 days (SAP) Auto dispatching of inspection orders with attached route to MDT (CAD) Group inspection orders by division/reporting location (CAD) Suspend data entry for a given route (CAD) PI ACE/RLink Evaluate raw data (ACE) Trigger SAP notifications Transfer measurement documents to SAP PM Module PSE&G INTERNAL USE
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Station Inspection Req. (cont)
PIML Administrator Create, modify and delete routes Access and search time-series tag definition library for assigning points to a route Group points by equipment Assign alarm limits to each point (high, low, high high & low low) Assign system states to a route (Broken, Unable to Read, etc.) Define digital state sets (Open/Closed) PSE&G INTERNAL USE
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Station Inspection Req. (cont)
Operator Require user ID when accepting route Default all tags within the route to the same timestamp (time the route was accepted) Allow for viewing of previous values Allow for entry of station comments Prompt for conformation when analog values are entered outside of limits Does not allow input of analog values outside of instrument's range Provide data validation for each point Provide a means for downloading and uploading routes within a truck or station (CAD-GPRS) PSE&G INTERNAL USE
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CGI-CAD Inspection Process
SAP PM Module Operator Completion Records Orders CAD Module Job and Status MDT Route and Values CAD PI Route Requests XML PI Manual Logger Chief Operator Create SAP Order Create CAD job Get PI-ML Tour Send Job to MDT Accept Job Send Tour Conduct Tour Send Tour to CAD Complete order in SAP Send Tour to PI-ML Update PI UDS XML CDPD over RF Point Values PI UDS Point Definitions Engineer doing analysis ML Database PI Archive PSE&G INTERNAL USE
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Advanced Computing Engine (ACE)
VB Environment for developing sophisticated equations Group equipment by aliases (reading) Apply set of equations to groups of equipment Create notification or trigger RLink for transfer of measurement docs or creation of notifications Allow calculation to be run on a periodic basis or based on a change to the raw value Turn on or off equations for individual equipment PSE&G INTERNAL USE
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Notification Calculations
Hydran PPM Rate of Change Excessive LTC Operations Excessive Runtime Readings High Breaker Temperatures Breaker Filling Pressure High or Low Transformer Oil Levels Low Transformer Nitrogen Cylinder Pressure Low Transformer Nitrogen Pressure PSE&G INTERNAL USE
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PI RLink – SAP PM Interface
RLink triggers notifications in SAP and sends measurement documents that drive Counter-based maintenance plans. RLINK Service Measurement Document State tag & Current Value Tag references Measurement Point FLOC or Equipment PI – UDS ACE RLINK Configuration Maintenance Plan RLINK Configuration ACE Event-based Equations update state tag from raw value State tag determines when to send MD RLink updates point configuration: short text, priority and raw value RLink triggers notification in SAP or sends measurement document Notification or Order PSE&G INTERNAL USE
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Reporting Requirements
Periodically extract relational data from the SAP PM module and place in a relational database for reporting Provide the capability to create Lists, Bar charts, Trends and attribute frequency reports Allow for multiple points and multiple data sources to be used in the creation of a single report. Allow multiple graphs to be placed on the same report. Save and execute report definitions by schedule or on demand Accept parameters from the user at run-time such as sort criteria, query filters Provide the capability to perform drill-downs Allow for grouping and sorting PSE&G INTERNAL USE
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Platforms Web Intelligence Platform Datalink Process Book Displays
Inspection Data Equipment Characteristics Condition & Criticality Diagnostic Data Collection Datalink Low Transformer Nitrogen Cylinder Pressures Excessive LTC Counts Excessive Breaker Runtimes Substation Loading Process Book Displays Trending On-line Diagrams PSE&G INTERNAL USE
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RCM Reports Business Object Platform Age Profile
CM Calls within PM Cycle Code Analysis Maintenance Cost Maintenance Cost Performance Percent PM Complete PM-CM Cost Ratio Repeat Calls Replacement Cost Profile Work Orders Due and Overdue PSE&G INTERNAL USE
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PM/CM Cost Ratio PSE&G INTERNAL USE
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Maintenance Performance
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RCM Reports - Benefits Sophisticated RCM analysis of SAP data
Provides Equipment Visibility Optimize PM $ and Reduce CM $ Measure maintenance plans effectiveness by: equipment class, manufacturer, models, age, etc.. Identify specific problems areas Revise maintenance plans Implement corrective program PSE&G INTERNAL USE
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Process Book Displays PSE&G INTERNAL USE
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Another Process Book Example
PSE&G INTERNAL USE
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PSE&G INTERNAL USE ONLY
Questions? PSE&G INTERNAL USE ONLY
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