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One modular solution to connect, see, control, and optimize DERs from a technical and an economic standpoint
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Streamlined mechanical integrity solution to reduce risk, maintain compliance and optimize resources
Develop, implement, maintain, and optimize asset strategies to effectively balance cost and risk
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Performance Intelligence with APM Reliability is your partner in meeting your plant and fleet performance goals.
Predictive analytics software, helps prevent equipment downtime by detecting, diagnosing, forecasting & preventing emerging failures.
The AI-powered product automatically explores the space of operation of gas turbines, builds a machine learning model, and continuously finds the optimal flame temperatures and fuel splits to minimize emissions
BoilerOpt works within existing plant technology to improve boiler productivity and air-fuel ratios in a closed-loop system
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Native cloud service for a data historian.
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Effective management and orchestration to unlock the power of renewables and DERs
AI/ML energy market recommendations to improve profit for renewables and thermal generation assets
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A common network view to ensure electrical integrity, network validity and infrastructure management
Accurately model your asset network, support traceability, help assure data completeness, & support integrity management
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Software designed to help grid operators orchestrate the grid
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Holistic performance management for today’s connected enterprise
Management of fast-moving processes as well as slower moving, labor-intensive jobs
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GridOS, the first grid software portfolio designed for grid orchestration
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Blog
For a reliability engineer or maintenance manager concerned with the strategic management of equipment performance, it’s necessary to identify the equipment that is being over maintained and under maintained with respect to proactive maintenance. Proactive maintenance includes everything from preventative work such as changing the belts on a conveyor at a regular interval to condition monitoring activities, such as vibration analysis performed at a regular frequency. In instruments such as pressure transmitters, the proactive work of verifying the transmitter’s calibration might cause instrument errors if done too frequently and might cause drift induced errors if not corrected frequently enough. The errors due to too frequent proactive work are also known as maintenance induced errors. These maintenance induced errors are applicable to other types of equipment, such as steam turbines, reciprocating compressors and centrifugal pumps.
By adopting a comparative analytic methodology, today’s data analysts can quickly identify over- and under-maintained equipment which helps industrial organizations increase asset reliability and even see improvements to their bottom line.
To identify equipment in the over- and under-maintained categories, Figure 1 depicts a very simple yet effective tool. By plotting the emergency or reactive work count versus the preventative maintenance (PM) / predictive maintenance (PdM) count for each asset belonging to a specific type, such as steam turbines, analysts can determine the most effective strategy for reducing reactive work.
The equipment shown in red has 100 PM/ PdMs in the two year period, but still experiences nine reactive or emergency work orders. This asset seems to have excessive proactive maintenance which is not effective in reducing reactive work orders. Whereas, the equipment shown in yellow has no PMs or PdMs and has eight reactive work orders. This asset seems to be under-maintained and needs more proactive maintenance to reduce reactive work.
In addition to identifying obvious equipment as in the graph shown in Figure 1, analysts must create zones and understand the groups of equipment that fall into each category. For this process, analysts need to identify the performance of similar equipment across different companies and different manufacturing sites. With the emergence of big data and advanced software tools, new platforms have the ability to provide the peer values for reactive work and PM/ PdM count and determine the zones and groups of equipment falling in each category.
By analyzing the peer data in the case above, analysts were able to determine that the peer PM/PdM count for all steam turbines was six and reactive work count was one. This sets a standard for how equipment should be performing. Using the peer values, reliability engineers split Figure 2 into quadrants and zones were created to categorize equipment.
Assets falling in the blue category have greater than average PM/ PdM count and less than average reactive count. These assets need to be evaluated for making the PM coverage lean and eliminating unnecessary tasks while maintaining the low reactive work. Assets falling in the red category, on the other hand, have greater than average PM/ PdM count and greater than average repair count. These assets are candidates for a PM/ PdM optimization program using a comparative analytics and an asset performance management (APM) solution to improve the quality and efficiency of the PMs and reduce reactive repairs. Further, assets falling in the yellow category have less than average PM/ PdM count and more than average reactive count. These assets need to be evaluated for increased PM/ PdM coverage to reduce reactive repairs.
These comparative analytics platforms can provide a plot of the proactive work count percentage (Proactive work count % is the percent of all proactive work orders (Pos and PdMs of the total work order count) versus the PM effectiveness percentage (PM effectiveness % = # of repairs detected proactively/total repair count). This helps in identifying equipment with similar proactive counts but a different PM effectiveness percentage. For example, the equipment denoted in red in Figure 3 has a proactive work count of 80% but an effectiveness of only 10%. Whereas, the equipment denoted in green has the same proactive work count of 80% but an effectiveness of 75%. In other words, the quality of PMs on the green equipment is much higher and much more effective in detecting potential problems before complete equipment failure.
After identifying these equipment groups, the next step should be to determine the dominant failure modes experienced on the equipment type and create PM and PdM tasks to address and check for these failure modes. This will greatly help in reducing reactive work orders as the PM and PdM tasks will be able to catch these failure modes and timely repairs can fix them before the equipment breaks down.
Comparative analytics technology has the ability to analyze data from various companies by equipment type and generate a list of dominant failure modes by cost and count. In Figure 4, the utility medium leakage and vibration are the top two most frequent failure modes for steam turbines. Whereas, utility medium leakage and erratic output are the costliest failure modes. The PM and PdM tasks created for steam turbines need to focus on checking for these failure modes to reduce the need for reactive repairs.
By implementing an effective comparative analytics and an APM solution, analysts have the ability to identify three specific groups of assets using peer performance, including: assets that have more than average proactive work, yet still experience more than average reactive work; assets that have less than average proactive work and more than average reactive work; and assets that have more than average proactive work and less than average reactive work. Each of these categories warrant actions to increase the efficiency of PMs and PdMs by targeting the dominant failure modes and reducing the non-value added tasks. Leveraging comparative analytics, organizations can achieve operational excellence while improving safety, reducing risk and driving continuous improvement by quickly providing key insights into industrial assets.
Project Manager, Predix APM, GE Digital
Manjish Naik is a project manager for Asset Answers, a benchmarking service within Predix Asset Performance Management that enables instant comparison of industry asset performance, in terms of cost, reliability and availability. Manjish works to facilitate successful and efficient inclusion of customer data in the Asset Answers database. He conducts value consultations with clients to provide asset performance analysis and improvements by using metrics and benchmarks in Asset Answers. He also provides expertise for new product enhancements and training content development. He does product demonstrations for prospective clients during pre-sales engagements.
According to Gartner, "In asset-intensive industries, asset management is moving from simple maintenance to a business operations core competency."…
Verdantix recognizes GE Digital’s Predix Asset Performance Management (Predix APM) as one of the market-leading industrial applications.
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