用于实施全州监控计划的高级分析解决方案，以提高资产可靠性和弹性

Air Selangor Advanced analytics used to implement state-wide monitoringprogram to improve asset reliability and resiliency AirSelangor is a large water distribution company owned by theMalaysian state of Selangor. The public utility serves a population of8.4 million residents and manages over 6200 kilometers of trunk mains,ranging from 300mm up to 2200mm, with much of the pipelines locatedin remote areas of the state. As a national water company making efforts to cost-effectively manageits network, Air Selangor wanted to reduce its high rate of non-revenuewater loss, (NRW) which in 2017 stood at 33.3 percent. Air Selangor had concerns about its aging infrastructure and took aproactive approach to reduce leaks and bursts and identify the causes ofpressure surges to mitigate the damaging transients that could reducethe lifespan of its pipes. By identifying leaks before they become moreserious bursts, repairs can be made without requiring line shutdown orwithout disrupting water supply to the local community.. Program highlights: •State-wide monitoring program—a first of its kind in Malaysia The challenge •Continuous remote monitoringapplication used to detect burstsand harmful pressure transients,reducing the runtime of leaks todays instead of months and years In the past, Air Selangor used a variety of techniques to identify leaksand bursts. However, there was still a need for a quicker responseto minimize the runtime of leaks/bursts and the disruption caused.Historically, the utility faced a long runtime of leaks before discovery,often due to the remote geographical location of its trunk mainnetwork. Furthermore, pressure transients were known to be anissue within the network, but without information on their sources orcauses. •High-resolution pressure andaccoustic sensors enable greaterunderstanding about the nature anddistribution of burts on the trunkmains Air Selangor also noticed that leaks often recurred on the samepipelines, causing concern and harming the utility’s reputation. AirSelangor actively sought innovative ideas for continuous monitoringto identify leaks and pressure surges earlier, reduce NRW and improvecustomer relations. The solution Air Selangor partnered with Xylem to develop a long-term, state-widemonitoring program to improve asset reliability and resiliency. Thisdecision intelligence approach includedXylem Vue’s Leak Detectionapplication, a real-time monitoring solution well suited to help AirSelangor prevent premature asset failure across the system. Leak Detection combines and analyzes analytics from two major leakdetectionmethodologies—pressure transients and hydrophones—to help utilities localize pipe bursts within minutes and detect slowlygrowing leaks. This automated process, which is supervised by analystsin a 24/7 monitoring environment, simplifies the analysis, visualizationand interpretation of massive quantities of data and helps repaircrews prioritize their response. Additionally, Leak Detection provides transient pressure monitoring,a non-invasive and cost-effective way to monitor water networksforthe presence of damaging pressure surges.Through itsinlinedetection of pressure transients,the solution helpsdetermine the source of these events and identifies pipes understress with high likelihood of leakage. This early warning helpsmanagedamaging pressure variations and mitigate the risksassociated with premature pipe failure, prolonging the effective lifeof infrastructure assets. “As a public utility, we wanted to reduce bursts andimprove our customer service, and the continuousmonitoring solution is certainly helping us achieveour goals...” Air Selangor The results The monitoring program started in 2018 with 500 sensors successfullydeployed in the first year and 65 major leaks and bursts identified andrepaired through close collaboration with Air Selangor. The programcontinues today, with ongoing installation of new sensors brought intooperation daily (1,600 sensors deployed and counting*). The Air Selangor-Xylem analytic team is identifying 2 leaks per week,with 295 found to date*and continuously monitoring for further leakson its trunk mains, helping Air Selangor achieve its NRW targets. Thiscompares to traditional methods where the same pipelines may not berevisited for months or years. Data from high resolution pressure and acoustic sensors have enabledimportant insights into the operation of the network and the natureand distribution of leaks on the trunk mains. In addition, the transientpressure monitoring has identified operational issues related to pumpchangeovers, allowing Air Selangor toimplement interventions to preventpremature failure of assets across their system.