© janaka dharmasena dreamstime.com Application Notes | December 09, 2020
Don’t Throw Away Your Smart Meters!
You are a utility distribution grid operator faced with the challenge of managing millions of meters. You are planning to deploy advanced metering infrastructure (AMI) with new smart meters to enable automated meter readings, demand response programs, remote connect and disconnect, and improved outage management.
Despite this, you still need to employ expensive work crews to replace these new smart meters as they near the end of their predicted useful lives. Because utilities or regulatory authorities determine a meter’s useful life based on statistics, most replaced meters are still operational and will be for many years to come! What if there was a way to keep meters in the field longer and only replace the ones that have reached their useful life? Extending meter lifetime yields surprisingly high return. Consider an example utility that spends $50 on a meter installation, including the cost of the meter. Assuming a 10-year starting useful life, extending the service of that meter by just two additional years results in saving $10 for the life of each meter. Extending the service by 3 years increases the savings to $15. If the starting useful life is less than 10 years or the cost of the meter and installation is higher than $50, the resulting savings are even more significant. In addition, the utility defers future capex and reduces electronic waste of disposed meters. Figure 1. Bathtub curve (Weibull function) represents the expected rate of failure for the entire population, not an individual device. Determination of a Meter’s Useful Life Regulatory bodies or utilities determine the useful life of the meter based on industry best practices, which are built on statistical distribution of failures. Typically, this is determined by reliability engineers using a Weibull function, otherwise known as a bathtub curve, as depicted in Figure 1. Engineers use these techniques to ensure that a meter’s power measurement accuracy remains within the allowed class or tolerance limits before it is replaced. This is important to protect consumers from overpaying for electricity, or the utility underbilling electricity, because of a meter’s sensing element that has drifted over time. Historically, attention has been devoted to reducing early failures through improved manufacturing processes, environmental burn-in, and extensive testing before the meters are deployed. However, the wear out region of the curve, which typically has a Gaussian distribution, is avoided by using conservative—three or more standard deviations—statistical methods to select the device’s useful life and minimize the possibility of out-of-specification devices remaining in service. The biggest drawback of these methods is that most of the time, greater than 99% of the meters removed from operation are still performing within specifications. Until now, there has not been a cost-effective way to verify the power measurement accuracy of each meter. mSure Technology from Analog Devices mSure® technology provides a noninvasive diagnostics system for residential, commercial, and industrial meters. The diagnostics system is built directly into the newest energy measurement integrated circuits (ICs) from Analog Devices and used by meter suppliers worldwide. When in operation, the current and voltage sensors are continuously monitored for changes in gain that could be caused by environmental factors, events such as lightning strikes, meter tampering, manufacturing defects, or wear over time. As shown in Figure 2, mSure diagnostic data is sent over the AMI network—with the meter readings—and then analyzed by a service that produces reports, insights, and alerts. mSure Benefits Protect Fraud-Based Revenue Loss Fraud due to meter tampering is a major source of nontechnical loss (NTL) in many countries and regions worldwide. The cost of stolen electricity is typically passed on to honest customers in the form of increased tariffs. Unlike other tamper detection methods, such as statistical methods or spotting current differences between the substation and each of its downstream meters, mSureenabled meters continuously monitor the meter’s current and voltage sensors for changes that likely indicate meter tampering. Your fraud investigators have access to reports showing a profile for each tampered meter, including a timestamp of when the tamper occurred, what kind of tamper, and whether there is intermittent tampering. mSure is proven to find difficult to detect tampers such as bypasses and double bypasses of the live and neutral lines. These insights will improve investigation time and speed revenue recovery. Figure 2. mSure-enabled meters send diagnostic data to an analytics service that produces reports, alerts, and insights. Eliminate Field-Based Meter Sample Testing Regulations and laws in most countries require periodic inspection and testing of installed meters. This process is costly and intrusive to customers as power must be shut off to uninstall the meter. With mSure-enabled meters, your metering staff knows the accuracy of each meter, which allows for elimination of field-based sample testing. Furthermore, work crews, metering experts, and analysts can be available and assigned to higher priority tasks. Gain Billing Process Confidence With mSure-enabled meters, your metering managers receive reports and alerts about the power measurement health across your entire meter population, giving you more confidence that your customers are receiving accurate invoices. On occasion, your customers may suspect there is an issue with the meter if they receive a bill that is for a higher amount than they expected. With mSure-enabled meters, your customer service team has access to each meter’s current and historical accuracy and can respond to inquiries from subscribers without the cost of a field visit. Furthermore, to promote goodwill, you can proactively provide subscribers with a monthly accuracy check, noted on the invoice or available through the payment portal. This capability may also be viewed positively by regulators as a benefit for consumers. Extend Meter Lifetime Most countries have laws that require meters to be replaced on periodic intervals. These intervals are determined by statistical methods, which result in millions of meters being replaced that are still operating within tolerance limits. With mSure-enabled meters, your asset managers know the accuracy of each meter and can replace only the meters that are nearing or exceeding their tolerance limits. This results in deferred future capital expense, reduced waste, and more efficient use of work crews. Prepare for the Future with mSure Until now, meters have been taken out of service based on industry best practices built on statistical distribution of failures. mSure technology from Analog Devices allows you to keep meters in the field longer and only replace ones that have reached their useful life. With mSure, you are able to extend meter lifetime, eliminate field-based sample testing, and detect meter tampering. Learn more about mSure here. About the Author Vitaly Goltsberg is a director of the © Analog Devices’ Energy Business Unit where he is responsible for utility meters and transmission and distribution markets. An electronic engineering graduate, he has been working for the energy markets for over 17 years. He can be reached at firstname.lastname@example.org.[ib][/ib]
GF CEO on Intel rumour: “There’s nothing to that story” In an interview with Jon Fortt from CNBC, GlobalFoundries’ CEO Tom Caulfield sets the record straight regarding the Wall Street Journal’s report of a potential USD 30 billion acquisition by Intel.
Applied Engineering to set up JV operations with Malaysian counterpart US-based Applied Engineering (AE) will be establishing a joint venture (JV) plant with Malaysian counterpart, QES Manufacturing Sdn. Bhd. (QES) in Batu Kawan Industrial Park, Pulau Pinang later this year.
Sponsored content by Shenzen Kinwong ElectronicThe development trend of printed circuit board products and Kinwong's solution With the rapid development of electronic technology in recent years, printed circuit board (PCB) products are pursuing higher heat dissipation capabilities, with high voltage and high current characteristics, and are developing towards high-density interconnection technology (HDI).
GlobalFoundries to build new fab in upstate New York The semiconductor manufacturer says that it will build a new fab in Malta, New York in a private-public partnership. The new fab willl "double the site’s capacity" and create more than 1'000 new direct high-tech jobs.
MKS completes its acquisition of Photon Control MKS Instruments has completed its previously announced acquisition of Photon Control Inc.
Renesas to close its Yamaguchi factory next year Renesas says that it has decided to consolidate the Yamaguchi Factory (located in Ube, Yamaguchi Prefecture in Japan) of its wholly owned subsidiary, Renesas Semiconductor Manufacturing Co., Ltd. at the end of June 2022.
Intel looking to buy GlobalFoundries for $30 billion? US chipmaker Intel is reportedly in talks to acquire semiconductor manufacturer GlobalFoundries for some USD 30 billion, reports the Wall Street Journal citing sources familiar with the matter.
Sponsored content by Nordson ELECTRONICS SOLUTIONSThere’s a better way to dispense thermal gap filler. We hear a lot about the advancement, properties, and use of dispensable thermal interface materials (TIM) to keep devices cool. But what about the dispensing process? If you're choosing a dispensable thermal gap filler for your application, download our new guide.
A simple way to measure temperature using one GPIO digital interface Question: How can I make an analog measurement if I only have a single GPIO left on the FPGA/microprocessor for my system?
New owner for crystal growth business in Eisenach Jenoptik has sold its crystal growth business to Hellma Materials, and will continue to focus its business on photonic applications. Hellma Materials takes over all 25 employees, and continues all business activities.
Linear Integrated Systems partners with Digi-Key Electronics Linear Integrated Systems, a designer and manufacturer of precision, high-performance, small-signal discrete semiconductors, has entered into a new partnership with Digi-Key Electronics.
Conti invests in Israeli industrial sensing start-up Feelit Continental has acquired a minority stake in the Industry 4.0 start-up Feelit, headquartered in Tel Aviv, Israel. Both companies have agreed not to disclose the amount of the holding.
Skeleton Technologies brings in additional capital On the first of July, Skeleton Technologies, announced the successful closing of a further EUR 29 million in its Series D financing. The total financing in Round D amounts to EUR 70.4 million.
Fingerprint receives follow-on order for its T-Shape sensor Swedish biometrics company, Fingerprint Cards has secured an additional volume order for approximately 250,000 units of T-Shape sensor modules from one of the world’s top three card manufacturers.
Minebea Mitsumi acquires Omron’s of 8-inch fab Minebea Mitsumi’s subsidiary Mitsumi Electric, has entered into an agreement with Omron Corporation for the acquisition of Omron's semiconductor and MEMS fabrication plant in Yasu, Shiga, Japan – as well as its MEMS product development function.
Neonode brings contactless touch to kiosk solution by MiTAC Swedish Neonode will deliver its Touch Sensor Modules (TSMs) to MiTAC Computing Technology Corp. (MCT) who has developed a contactless touch self-service kiosk solution with a 32 inch display featuring Neonode’s TSMs.
Sourceability ink distribution deal with Nexperia Electronic component e-commerce marketplace, Sourcengine, says that it is making components from semiconductor manufacturer Nexperia available worldwide.
SK hynix starts mass production of 1anm DRAM using EUV equipment SK hynix says that it has started mass production of the 8 Gigabit (Gb) LPDDR4 mobile DRAM based on the 1anm, which is the fourth generation of the 10nm process technology this month.
Cirrus Logic to acquire Lion Semiconductor for $335 million Cirrus Logic has entered into an agreement to acquire California-based Lion Semiconductor for USD 335 million in cash. The acquisition brings IP and products for power applications in smartphones, laptops and other devices and accelerates growth of the company’s high-performance mixed-signal business.
Bootstrapping a low voltage Op Amp to operate with high voltage signals and supplies Question: Can I bootstrap a low voltage amplifier to get a high voltage buffer?
Sensirion raises its outlook for full-year 2021 The Swiss manufacturer of digital microsensors and systems raises its outlook for financial year 2021 based on strong demand in the first half of the year.
Altix moves to increase its R&D capabilities Following an increase in manufacturing activity, exposure systems specialist Altix has recently expanded its R&D center located at its French headquarter in Normandy, France.
Micross buys microelectronics business assets of Ultra CEMS Micross Components, a provider of mission-critical microelectronic components and services, is expanding its Hybrid and assembly business with the acquisition of assets of the microelectronics business from Ultra CEMS, a provider of high reliability hybrid electronics engineered for harsh environments.
ITEC emerges as independent semiconductor equipment manufacturer Semiconductor equipment manufacturer ITEC, which was founded in 1991 by Philips (now Nexperia), has announced its launch as a separate independent entity. ITEC will however remain part of the Nexperia group.
LPKF supplies systems to chip manufacturer Technology company LPKF says it has received a follow-up order from the semiconductor industry. An unnamed global chip manufacturer had installed a first LIDE system at the beginning of 2020 and, after a qualification phase, initially used it for its own product development. Now, further systems have been ordered.Load more news