Probewell

Portable meter and transormer-rated site tester instruments for power utilities

6 Key Strategies to Prevent Revenue Loss for Utility Companies in 2024

6 Key Strategies to Prevent Revenue Loss for Utility Companies in 2024 150 150 Probewell

6 Key Strategies to Prevent Revenue Loss for Utility Companies

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

For utility companies, preventing revenue loss is essential in today’s climate, where energy demand continues to grow, infrastructure ages, and environmental conditions become more unpredictable. Even small errors or unnoticed issues can result in significant financial losses, particularly in the commercial and industrial sectors, which are critical to a utility’s revenue stream.

Industry studies have consistently shown that undetected issues, such as equipment failures or billing discrepancies—including incorrect utility meter charges—can quietly drain significant resources. Some companies report overpayments of up to $80,000 per month due to these overlooked problems. In total, it is estimated that $6 billion in utility revenue is lost annually in the U.S. alone due to non-technical losses like energy theft and billing errors. This underscores the increasing necessity for effective monitoring and, more importantly, the urgency of transitioning to advanced technologies to detect and prevent costly oversights. Beyond financial losses, unresolved issues can severely damage a utility’s reputation, resulting in dissatisfied customers, legal liabilities, and potential public relations crises.

electrical field technician

Technologies such as AMI (Advanced Metering Infrastructure) and MDMS (Meter Data Management Systems), widely used across North America for years, assist with real-time monitoring and issue detection, but they only offer part of the solution. To truly minimize revenue loss, utilities must go further by implementing consistent testing practices, upholding rigorous safety standards, and leveraging advanced testing products to ensure reliable performance and efficiency.

This article explores the critical factors that utility companies should consider to mitigate revenue losses through effective testing, inspections, and the integration of advanced technologies before issues escalate beyond repair.

Here are 6 Key Factors for Optimizing Inspections and Reducing Costs:

1. Safety

Safety is a fundamental concern in the utility industry, especially when technicians handle high-voltage equipment. Testing equipment that reduces exposure to hazards is essential. By limiting the number of physical connections during inspections, the risk of accidents, such as electrical shocks or short circuits, is significantly reduced. This, in turn, lowers the likelihood of costly downtime and injuries.

As illustrated in the graph, reducing physical connections can significantly lower the probability of errors and the associated costs of accidents.

A graphic indicating the type of , reducing physical connections can significantly lower the probability of errors and the associated costs of accidents.
Bar graphic indicating a comparation inspection method: time on site vs. cost, between traditional testing and advanced testing methods.

2. Total Time On Site

Minimizing the time a technician spends on-site is crucial for cost efficiency. Prolonged inspections increase labor costs and can disrupt operations, especially in industrial settings. By streamlining processes, such as testing directly from the meter base rather than accessing multiple test points, significant time can be saved.

For example, traditional site inspections often take 30-45 minutes to complete, while advanced equipment can reduce this to under 20 minutes, cutting labor time by 50% and saving up to $500 per site visit.

“Preventing revenue loss in utility companies hinges on optimizing key areas like meter accuracy, safety protocols, and real-time monitoring, ensuring operational efficiency and financial stability.”

3. Test Duration

Another major contributor to revenue loss is the time a meter is out of service during testing, which is particularly imperative during peak hours. Even short interruptions in service can lead to unbilled energy.
Based on the updated U.S. average industrial electricity rate from the EIA ($0.075 per kWh), the potential revenue loss for 20 minutes of downtime for each meter size is as follows:

  • 1,000 Amps @ 240V: $6.00 in revenue loss.
  • 2,000 Amps @ 240V: $12.00 in revenue loss.

By using faster, more efficient testing technologies, the duration of the test can be minimized, thereby lowering potential revenue loss from unbilled energy.

The pie chart reflects that the larger meter (2,000 Amps @ 240V) accounts for 66.7% of the total potential revenue loss, while the smaller meter (1,000 Amps @ 240V) contributes 33.3%.

The pie chart reflects these figures, showing that the larger meter (2,000 Amps @ 240V) accounts for 66.7% of the total potential revenue loss, while the smaller meter (1,000 Amps @ 240V) contributes 33.3%.

Probewell Connect 2.0 Application | Wireless | XT Series and WT Series | MT-1/WT1 | MT-1/WT3 | ST-3/XT3

4. Ease of Use

User-friendly, portable testing solutions can significantly improve accuracy and minimize the risk of technical mishaps. In contrast, complex test tools that require multiple adapters and the use of handheld remote tend to increase the likelihood of mistakes, lengthen test times and ultimately increase costs. For example, equipment requiring 5-6 adapters for each test point can take twice as long to set up compared to wireless, intuitive software, further decreasing the chances of human error.

5. Learning Curve

The complexity of testing equipment directly affects the time and resources needed for training.
A steep learning curve can cause downtime as technicians are trained and increase the likelihood of errors during the initial adoption phase.

Advanced testing equipment with simplified hardware and software components can reduce training time from 2-3 weeks to just 3-5 days, leading to faster implementation and more frequent inspections.

The pie chart highlights the significant reduction in training time when using advanced testers, with traditional testers accounting for 80.8% of the training period and advanced testers only 19.2%. 

The pie chart highlights the significant reduction in training time when using advanced testers, with traditional testers accounting for 80.8% of the training period and advanced testers only 19.2%

6. Latest Technologies

Investing in cutting-edge technologies offers numerous advantages in terms of accuracy, downtime reduction, and real-time data analysis. For example, innovate metering solutions can detect inefficiencies that traditional methods may miss, allowing utilities to address potential issues before they escalate.

Key technologies, such as real-time data analysis, provide immediate result reporting, making issue detection easier and resulting in an average annual savings of $10,000 in repair costs. Automated and personalized reporting software enables quicker decision-making, reducing downtime by 15%.

Preventing revenue loss is a complex but vital endeavor for utility companies. By focusing on safety, minimizing time on site, reducing test durations, and leveraging the latest technologies, utilities can ensure operational efficiency, enhance billing accuracy, and foster better customer relations.

Incorporating these key factors into routine operations not only minimizes risks but also maximizes return on investment, safeguarding the long-term financial health of the company.

References:

IBM. (n.d.). Advanced metering infrastructure (AMI). IBM. Retrieved, from https://www.ibm.com/topics/advanced-metering-infrastructure

Hive Power. Understanding Meter Management Systems. 8 July 2021, https://www.hivepower.tech/blog/understanding-meter-management-systems

Reliable Sources to Support Data:

  1. S. Energy Information Administration (EIA)
    Provides data on average electricity rates, which can help contextualize revenue loss estimates based on meter downtime.
  2. Smart Electric Power Alliance (SEPA)
    Offers studies and reports on smart grid technologies and advanced metering infrastructure.
  3. Electric Power Research Institute (EPRI)
    Provides research on energy technologies and utility efficiency.
  4. International Energy Agency (IEA)
    Global reports on energy efficiency, grid modernization, and utility practices.

Demo Article

Demo Article 150 150 Probewell

Pourquoi pas un sous-titre?

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

The WT Series from Probewell represents a significant technological advancement in wireless meter testing, offering a range of features and benefits that make it an attractive upgrade for utilities and field technicians. Below, we explore the key features and advantages of migrating to the WT Series, including technical enhancements, return on investment (ROI) benefits, and overall operational efficiencies.

Revenue protection is an important part for any business that operates over an extended period of time. When it comes to the commercial and indultrial (C&I) market, it is imperative to maintain peak performance installations at all times. Undetected problems in the C&I market can result in exponential revenue loss for every month that a problem goes unresolved.

The revenue loss equation is quite simple:

Energy consumption x Rate x Error % x Number of months = Revenue Lost

The potential risk for a customer installations range from simple wiring problems to defective installations, faulty equipment and even tampering.

As opposed to damage control, routine inspection or preventive maintenance has two positive impacts,

  • Allowing utilities to detect these issues before they ever impact their ROI
  • Providing the baseline to analyzing future test results.

Addressing quality concerns early in transformer-rated installation by means of preventive maintenance is a good approach to revenue protection.

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ST-3/Flex-2500 | Rogoski Coil | ST-3/XT3 | Single-phase and polyphase CT-Rated Site Tester | Probewell Connect 2.0 | Transformer-Rated Site Tester | Installation Diagram with PT and CT Accessories | Primary/Secondary Analysis | BurdenTest

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Revenue protection is an important part for any business that operates over an extended period of time. When it comes to the commercial and indultrial (C&I) market, it is imperative to maintain peak performance installations at all times. Undetected problems in the C&I market can result in exponential revenue loss for every month that a problem goes unresolved.

The revenue loss equation is quite simple:

Energy consumption x Rate x Error % x Number of months = Revenue Lost

The potential risk for a customer installations range from simple wiring problems to defective installations, faulty equipment and even tampering.

As opposed to damage control, routine inspection or preventive maintenance has two positive impacts,

  • Allowing utilities to detect these issues before they ever impact their ROI
  • Providing the baseline to analyzing future test results.

Addressing quality concerns early in transformer-rated installation by means of preventive maintenance is a good approach to revenue protection.

Probewell Connect 2.0 Application | MT-1/WT3 | Meter Base | Wireless Meter Tester | Metering

How to Improve ROI by Testing the Accuracy of an AMI Meter?_v3

How to Improve ROI by Testing the Accuracy of an AMI Meter?_v3 1700 364 Probewell

How to Improve ROI by Testing the Accuracy of an AMI Meter?

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

In today’s rapidly evolving energy landscape, electric utilities are increasingly relying on AMI (Advanced Metering Infrastructure) and MDMS (Meter Data Management Systems) to enhance data analytics and drive operational efficiency. These systems provide crucial insights into consumption patterns and system performance, enabling utilities to make informed, data-driven decisions.

However, the adoption of AMI technology can be met with skepticism, especially from customers unfamiliar with its benefits. This reluctance is often due to a lack of transparency or concerns about accuracy in billing. Utilities can mitigate these concerns by ensuring that the onboarding process is clear, informative, and backed by reliable data.

At the core of AMI efficiency lies one key element: meter accuracy. The reliability of the data collected directly impacts the performance of the entire installation. In some cases, discrepancies may arise when transitioning from mechanical meters to digital smart meters, as the latter tend to be more precise. These discrepancies can naturally raise questions from customers regarding their bills.

Verifying the accuracy of the meter

Ensuring that meters are accurate is essential for both customer satisfaction and operational efficiency. This is where advanced testing solutions come into play. For instance, using products that offer wireless meter testing can significantly improve the customer experience. Sharing traceable test reports as part of the onboarding process ensures transparency and builds trust, encouraging wider adoption of AMI technology. Such practices can also enhance your return on investment (ROI) without negatively affecting the bottom line.

One solution is the WT Series wireless tester, which provides a wide range of testing options. This tester allows technicians to verify meter accuracy on-site and in real-time, ensuring that the meter readings are reliable. With a typical accuracy of ±0.02%, utilities can maintain fair billing practices and prevent costly errors.

Through the Probewell Connect application, a Quick Test can be performed to assess meter accuracy. This test generates a report showing the accuracy of the meter before and after the transition, ensuring transparency for both customers and utilities. The results include detailed data such as the meter ID, timestamp, and geolocation for full traceability. These reports can be shared instantly via email, streamlining communication between field technicians, customer service teams, and the customers themselves.

MT-1/WT3 | WT Series Meter Tester | Net Metering | 3-Phase Watthour Meter | Probewell
MT-1/WT1 | MT-1/WT3 | Probewell Connect 2.0 application | Metering | CT Meter | Wireless Meter Tester
MT-1/WT3 | Three-phase Wireless Watthour Meter Tester | Probewell Connect 2.0 | Installation Diagram with Optical Pickup

Advantages:

· Quick and easy setup
· Customizable configuration
· Task automation
· Validation of test results at a glance
· Undeniable traceability
· Shareable findings, (export report as CSV or PDF)
· Lower operating costs thanks to optimized processes.

“Accurate AMI meter testing boosts ROI by minimizing billing errors, enhancing efficiency, and reducing revenue losses for utilities.”

Transformer rated installations

For CT-rated installations, the Probewell ST-3/XT3 site tester offers a comprehensive solution to further enhance ROI. This tool allows field workers to perform a complete quality assessment of the installation, including testing the CT/PT ratio, burden, and admittance. Within minutes, installations can be accurately evaluated, ensuring optimal performance.

By incorporating advanced technologies like the WT Series meter tester and XT Series site testers, utilities can ensure that their AMI deployment is supported by robust, reliable testing:

  • Achieve hardware and service operational efficiency
  • Build a better customer’s experience,
  • Share traceable test reports as part of the onboarding process
  • Improve your ROI without affecting your bottom line.

This approach not only enhances operational efficiency but also fosters a better customer experience by delivering transparency and accountability throughout the process.

Probewell | XT Series | CT-Rated Site TesterSeries – Available tests

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Transformer TestingPower Quality

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Real-Time Waveform | Transformer TestingReal-Time Waveform

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Phasors | Transformer TestingPhasors

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Total Harmonic Distortion | Transformer TestingTotal Harmonic Distortion

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Primary and Secondary Analysis | Transformer Testing  Primary/Secondary Analysis

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | CT Burden | Transformer TestingCT Burden

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Admittance Test | Transformer TestingAdmittance

Advantages:

  • Full RMS and line cycle measurement of both secondary and primary currents and voltages
  • Compatible input voltage from 100 to 480 VAC
  • Plug & “Play”
  • Uncompromised accuracy

Unlock the full potential of your AMI deployment: enhance accuracy, improve customer trust, and maximize ROI—all without impacting your bottom line.

Ready to Take the Next Step?

Get a tailored quote for the exact solution you need.
Click the button below to request your personalized product quote today.

References:

IBM. (n.d.). Advanced metering infrastructure (AMI). IBM. Retrieved [2022], from https://www.ibm.com/topics/advanced-metering-infrastructure

Hive Power. Understanding Meter Management Systems. 8 July 2021, https://www.hivepower.tech/blog/understanding-meter-management-systems

Probewell Connect 2.0 Application | MT-1/WT3 | Meter Base | Wireless Meter Tester | Metering

How to Improve ROI by Testing the Accuracy of an AMI Meter?_v2

How to Improve ROI by Testing the Accuracy of an AMI Meter?_v2 1700 364 Probewell

How to Improve ROI by Testing the Accuracy of an AMI Meter?

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

Nowadays, electric utilities expect AMI (Advanced Metering Infrastructure) in electrical grids and MDMS (Meter Data Management) solutions to provide advanced data analytics so they can make informed data-driven decisions to achieve operational efficiency (hardware and services).

Customers often distrust new technologies and are reluctant to adopt them. It is up to the utilities to reassure their customers as part of their onboarding process and a good way to do this is to keep them informed by making the process as transparent as possible.

When it comes to AMI efficiency, the key factor is the accuracy of the meters, thus the reliability of the data they aggregate.

When deploying or maintaining an AMI grid, some discrepancies may be noticed in the data after the initial transition. For instance, the data collected from a mechanical meter may differ from the data collected from a digital meter, which is often more accurate, naturally prompting clients to question their bill.

Verifying the accuracy of the meter

The WT Series wireless tester help building a better customer’s experience, by allowing sharing of traceable test reports as part of the onboarding process and facilitate the adoption of the AMI technology and finally, improve your ROI without affecting your bottom line.

Our meter tester enables a wide range of testing options. It allows the operator to assess the electric meter on site and in real time, checking the accuracy of the meter’s reading and performance. The typical accuracy is ± 0.02%, to ensure fair billing.

It is possible to perform a Quick Test, using the Probewell Connect application to quickly assess the accuracy of each meter and keep a traceable report of the meters accuracy readings, before and after the transition (as found and as left reporting). The Quick Test runs a series of sub-tests (for each of the loads: HL, PF and LL and it calculates the weight average), in a single operation.

The test results are securely stored within the unit and includes the meter ID, time-stamped and geolocation data for traceability purpose. The test reports can be shared by e-mail, right from the operator’s mobile to the customer and the utility’s customer service department for a follow-up.

MT-1/WT3 | WT Series Meter Tester | Net Metering | 3-Phase Watthour Meter | Probewell
MT-1/WT1 | MT-1/WT3 | Probewell Connect 2.0 application | Metering | CT Meter | Wireless Meter Tester
MT-1/WT3 | Three-phase Wireless Watthour Meter Tester | Probewell Connect 2.0 | Installation Diagram with Optical Pickup

Advantages:

· Quick and easy setup
· Customizable configuration
· Task automation
· Validation of test results at a glance
· Undeniable traceability
· Shareable findings, (export report as CSV or PDF)
· Lower operating costs thanks to optimized processes.

“Accurate AMI meter testing boosts ROI by minimizing billing errors, enhancing efficiency, and reducing revenue losses for utilities.”

Transformer rated installations

If it’s a CT rated installation, the Probewell ST-3/XT3 site tester is another great way to improve your ROI during a site visit., Perform a complete quality assessment of an installation, including the CT/PT ratio, the burden and the admittance test. Within minutes, a CT/PT instrument-rated installation can be accurately tested by a field worker.

Get immediate confirmation, that the installations are optimal to achieve hardware and service operational efficiency by using the Probewell WT Series meter tester or XT Series site testers as part of your AMI deployment field tools.

  • Achieve hardware and service operational efficiency
  • Build a better customer’s experience,
  • Share traceable test reports as part of the onboarding process
  • Improve your ROI without affecting your bottom line.

Probewell | XT Series | CT-Rated Site TesterSeries – Available tests

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Transformer TestingPower Quality

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Real-Time Waveform | Transformer TestingReal-Time Waveform

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Phasors | Transformer TestingPhasors

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Total Harmonic Distortion | Transformer TestingTotal Harmonic Distortion

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Primary and Secondary Analysis | Transformer Testing  Primary/Secondary Analysis

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | CT Burden | Transformer TestingCT Burden

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Admittance Test | Transformer TestingAdmittance

Advantages:

  • Full RMS and line cycle measurement of both secondary and primary currents and voltages
  • Compatible input voltage from 100 to 480 VAC
  • Plug & “Play”
  • Uncompromised accuracy

Ready to Take the Next Step?

Get a tailored quote for the exact solution you need.
Click the button below to request your personalized product quote today.

References:

U.S. Department of Energy. “What is Advanced Metering Infrastructure (AMI)?” Energy.gov. https://www.energy.gov/eere/what-advanced-metering-infrastructure.

Itron. “Meter Data Management: Trusted. Proven. Scalable.” Itron.com. https://www.itron.com/solutions/meter-data-management.

Why Monitoring Power Flow Accuracy in Net Metering Is Crucial Today?_v2

Why Monitoring Power Flow Accuracy in Net Metering Is Crucial Today?_v2 150 150 Probewell

Why Monitoring Power Flow Accuracy in Net Metering Is Crucial Today

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

Net metering: Fostering a fair exchange bewteen utility companies and their costumers

The US federal government requires utility companies to purchase surplus energy from independent producers.

Over 40 states have laws in place to ensure credit is given for this excess consumer generation. State regulatory agencies review the rates utilities charge retail consumers to ensure they are reasonable under their ratemaking jurisdiction.

Some utility companies still perceive Net Metering policies as lost revenue opportunities, but in most cases, Net Metering allows utilities to better manage their peak electricity load as well as reduce the strain on the distribution system.

Measure the power they export back to the grid

In some case, consumers will produce more electrical power than they consume during peak generating conditions. Net Metering allows these customers to measure the power they export back to the grid, to save on their future electrical bills and benefit the environment by generating renewable energy.

Bills based on actual meter readings will reflect the difference between the value of the electricity injected into the grid and the value of the electricity  customers  consumed from the grid.

In order to determine how much power is fed back and to ensure a fair exchange between the utility companies and the customers, an accurate meter reading of both the forward and reverse power flow is critical.

This requires a solution that fits seamlessly into the daily workflow.

To prevent this, a simple routine maintenance schedule should be implemented that includes a reverse power flow test. This requires a fast and easy-to-use testing solution that fits seamlessly into the daily workflow.

MT-1/WT3 | WT Series Meter Tester | Net Metering | 3-Phase Watthour Meter | Probewell

MT-1/WT3 | Three-phase Wireless Watthour Meter Tester | Probewell Connect 2.0 | Installation Diagram with Optical PickupProbewell offers the WT Series wireless meter testers that can quickly detect drifting of forward or reverse power flow accuracy in both Wh and VARh measurement modes as part of their standard operation. No need to change any of the socket connections between tests, just select Reverse Flow Test in the Probewell Connect application on a mobile device and get live results immediately.

Regularly testing their meter population as part of their quality assurance program is a good practice for utility companies .

Probewell WT Series wireless meter testers are well suited to the task: they are portable, easy to use, compatible with multiple meter forms and offer a wide range of tests that are key to maintaining a healthy power grid and keeping customers happy. Simply put, testing is just good overall business practice.

“Using the right solutions, such as advanced meter testers, is essential for identifying inaccuracies in net metering systems, ensuring precise energy flow measurements, and preventing billing discrepancies, all while enhancing the reliability of renewable energy integration into the grid.”

Main features of the MT-1/WT3 wireless meter tester

COMPATIBLE METERS
Single-phase:  1S, 2S, 3S*, 4S, 12S(N) and 25S
Three-phase:  6S, 8S, 9S, 12S, 14S, 15S, 16S, 36S, 46S, 96S and Fitzall™ meters
Class:   10, 20, 100, 200, 320**


COMPATIBLE DEVICES
Smart phone, tablet and PC
Operating systems:  IOS®, Android®, Windows®


TEST SOCKET
Input voltage:  100 – 600VAC
Line frequency:  58 – 62Hz
Power consumption:  75 VA (maximum)
Circuit breakers:  2 x 1 A (press-to-reset mechanism)


CURRENT SYNTHESIZERS
Adjustable current:  0.25 to 50A
Phase angle (Wh):  Unity and 60° lag
Phase angle (VARh):  90° and 30° lag


INTERNAL 3-PHASE WATTHOUR STANDARD
Typical accuracy:  ±0.02%
Guaranteed accuracy:  ±0.05%


Click here to see the full technical specifications


Other advantages of using the ultralight WT Series wireless meter testers

Manage risk

  • Quickly setup the  testing   device and speed-up the assessment process without ever compromising safety.

Minimize human error

  • Minimize the time spent doing clerical work and other redundant back-office tasks by automating the report process.

Best practices

  • Work “ahead of the game” to save time and money in the long run. Adopt the MT-1/WT3 as a standard tool for quality assurance.

Probewell Connect

  • The advanced, yet simple solution literally at your fingertips. Create reliable reports in CSV or PDF format and share your findings via email.
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Probewell Connect 2.0 | Google Play | Download

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Probewell Connect 2.0 | Windows 11 | Download | Firmware and Software Download

The Windows version of Probewell Connect 2.0 is entirely free but signup to Probewell Support Portal is require  to download the app.

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Why Care About Ratio, Burden, and Admittance Testing on TC Installs?_v2

Why Care About Ratio, Burden, and Admittance Testing on TC Installs?_v2 150 150 Probewell

Why Care About Ratio, Burden, and Admittance Testing on TC Installs?

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

Keeping transformer-rated installations within the operating range recommended by ANSI plays a critical role in the financial health of both utilities and their customers. ANSI C84.1 defines acceptable voltage tolerances, ensuring safe and reliable transformer operation, preventing inefficiencies and billing errors that can lead to costly repairs and financial strain​.

Current and potential transformers rarely have problems, but they can arise, whether due to magnetization of the CT over time, faulty wiring, a closed CT shunt, corrosion on the switches or a bad meter insertion at the socket. When these problems occur, costs quickly add up, and not just to fix the hardware issue.

Not to mention the hassle when it comes time to announce additional billing for backlogs to the customer, or an upward rate adjustment (sometime up to 300%) in order to rectify the situation.

On the other hand, when assessing an installation in response to a high bill complaint, utility companies could discover that they have been over charging their customers. When this happens, damage control is needed. But even after the utility fixes the problem and negotiates the amount to be reimbursed to the customer, the situation will have eroded trust in the company’s services and tarnished its reputation.

These types of problems can easily be detected when servicing a transformer-rated installation by performing CT/PT ratio, burden and admittance tests.

The chart above represents the impact of different types of testing and maintenance on transformer-rated installations, focusing on billing accuracy and cost-saving potential. Based on this data:

  • CT/PT Ratio Testing has an 85% improvement in billing accuracy and 70% cost-saving potential.
  • Burden Testing offers a 75% improvement in accuracy and a 65% potential for cost savings.
  • Admittance Testing improves accuracy by 80% and provides a 60% cost-saving potential.
  • General Maintenance has the highest impact on accuracy (90%) and the potential to save up to 80% of costs through improved operational efficiency.

Better safe than sorry!

With good planning, you can manage the risks that stem from these challenges. For instance, performing a full assessment, including ratio, burden and admittance tests on transformer-rated installations upon deployment as part of a routine quality assurance check. Then be sure to include it in your yearly maintenance plan, which is already mandatory in some states. To do so, an easy-to-use testing solution that fits seamlessly into your usual maintenance routine is vital…

Why the XT Series is up to the task?

 

  • Ergonomic design
  • Advanced, yet easy to use
  • Uncompromised accuracy

In response to the ever-growing need for efficiency and portability, we proudly introduce the ST-3/XT3, the first socket-type transformer-rated site tester with integrated WiFi technology. it’s well-suited to the task and here’s why:

The portability and accuracy of the ST-3/XT3, paired with the advanced, yet intuitive Probewell Connect application is the best solution when it comes to testing transformer-rated installations.

Run all the required tests from a single measurement device weighting only 4.5 lb.

Probewell | XT Series | CT-Rated Site TesterSeries

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Transformer TestingPower Quality

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Real-Time Waveform | Transformer TestingReal-Time Waveform

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Phasors | Transformer TestingPhasors

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Total Harmonic Distortion | Transformer TestingTotal Harmonic Distortion

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Primary and Secondary Analysis | Transformer Testing  Primary/Secondary Analysis

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | CT Burden | Transformer TestingCT Burden

Probewell | ST-3/XT3 | CT Tester | Probewell Connect 2.0 | Power Quality Test | Admittance Test | Transformer TestingAdmittance

Probewell | XT Series | ST-3/XT3 | Transformer-Rated Site Tester | Probewell Connect 2.0 | WiFi

  • Quick and easy setup
  • Customizable configuration
  • Task automation
  • Validation of test results at a glance
  • Undeniable traceability
  • Data-driven insights
  • Export report as CSV or PDF

Full RMS and line cycle measurement of both secondary and primary currents and voltages

  • Rooted at its core is high-performance multiphase energy-metering circuitry.

Compatible input voltage

The ST-3/XT3 series is powered directly from the meter base for quick and easy setup between phase and neutral.
  • From 100 to 480 VAC

Plug & Play and read all three phases simultaneously

Connect the CT and PT measurement accessories to the front of the device and test all three phases simultaneously, thereby negating the risk of inaccurate measurements due to current fluctuations.

Uncompromised accuracy

The tester has three built-in current sensors of up to 20 amperes to analyze the secondary current directly at the meter socket.
    • 3 current sensors up to 20 A
    • Typical accuracy of 0.05%
    • Maximum accuracy of 0.1%

Regularly testing their transformer-rated installations as part of their quality assurance program is a good practice for utility companies. Probewell XT Series wireless site testers are perfect for the task: they are portable, easy to use, compatible with multiple forms and offer a wide range of tests that are key to maintaining a healthy electrical installation and keeping customers satisfied.

Main featurres of the ST-3/XT3 Wireless Site Tester

 

COMPATIBLE INSTALLATION
Single-phase 3S and 4S
Polyphase 5S*, 6S, 8S, 9S, 35S* and 45S*
*Adapter required (included)
INPUT
Voltage 100 – 600 VAC
Working voltage 100 – 480 VAC +/- 10%
Line frequency 58-62 Hz
Bypass circuit 20 A (max for CT Rated)
Circuit breakers 2 x 1 A (press-to-reset mechanism)
MULTIFUNCTION MEASUREMENTS ACCURACY
RMS current ±0.1% maximum
RMS voltage ±0.1% maximum
Frequency ±0.1% maximum

Probewell Connect 2.0 User Guide (v.2.4)


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References:

NEMA. “National Electrical Manufacturers Association.” NEMA.org. https://www.nema.org.

Voltage Disturbance. “Understanding Voltage Disturbances.” VoltageDisturbance.com. https://www.voltagedisturbance.com.

Probewell | How to enhance your safety during meter testing?

Safety First: Essential Tips for Safe Meter Testing Practices

Safety First: Essential Tips for Safe Meter Testing Practices 800 445 Probewell

Safety First: Essential Tips for Safe Meter Testing Practices

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

Understanding the Risks

High Voltage and Electrical Hazards

Transformer-rated installations often involve high voltages that may pose significant dangers to technicians if the necessary precautions aren’t taken, including severe injuries or even death upon contact. The key risks in these environments are:

Main Factors of Risk for Electrical Technicians:

  • Electrical Shocks: Direct contact with live electrical parts can result in severe injury or fatality.
  • Arc Flashes: A sudden release of energy from an electrical fault can cause serious burns and damage.

Most Common Causes:

  • Tampering: Unauthorized modifications or interference with equipment can compromise safety.
  • Improper Installation: Incorrect setup of equipment increases the risk of electrical failures.
  • Lack of Maintenance: Neglecting regular upkeep can result in equipment degradation and increased risk.
  • Human Error: Insufficient knowledge, mislabeling equipment and inadequate Training can lead to unsafe practices and accidents.
  • Equipment Failures: Malfunctioning or poorly maintained equipment can lead to unexpected and dangerous situations.
  • Weathering: Rain, snow, extreme temperatures, and high winds can affect safety and make equipment handling more challenging.

Strict adherence to safety protocols and continuous education on these risks are essential to protecting technicians and ensuring safe operations in high-voltage environments.

Probewell Safety | Arc Flash Boundaries | PPE Categories

Key Safety Concepts: Arc Flash Boundary

NFPA 70E Table 130.4(C)(a): Approach Boundaries for DC Voltage Systems

DC Voltage Range Limited Approach Boundary Restricted Approach Boundary Prohibited Approach Boundary
>100 V to 300 V 10 feet (3.05 m) 1 foot (0.3 m) Avoid contact
>300 V to 1 kV 10 feet (3.05 m) 3 feet 6 inches (1.07 m) 1 inch (25.4 mm)
>1 kV to 15 kV 20 feet (6.10 m) 6 feet (1.83 m) 2 feet 2 inches (0.66 m)
>15 kV to 25 kV 25 feet (7.62 m) 8 feet (2.44 m) 2 feet 10 inches (0.86 m)
>25 kV to 75 kV 35 feet (10.67 m) 10 feet (3.05 m) 3 feet 6 inches (1.07 m)
>75 kV to 800 kV 45 feet (13.72 m) 12 feet (3.66 m) 5 feet (1.52 m)

Understanding Approach Boundaries:

The table provides three critical boundaries that define safe distances for personnel working near energized electrical conductors or circuit parts, particularly in DC voltage systems. These boundaries are:

  • Limited Approach Boundary: The closest distance an unqualified person can approach a live part without additional protection or supervision. Typically, this boundary corresponds to an incident energy level below 1.2 cal/cm², where Category 1 PPE is recommended.
  • Restricted Approach Boundary: The distance within which only qualified personnel with proper PPE (Personal Protective Equipment) may approach due to the increased risk of shock. For an incident energy level of 1.2 to 8 cal/cm², Category 2 PPE is necessary, including arc-rated clothing and face protection.
  • Prohibited Approach Boundary: The area closest to the live part where no one should enter without a documented risk assessment and proper authorization, as this boundary poses the highest risk. For incident energy levels between 8 and 25 cal/cm², Category 3 PPE should be used, which includes an arc-rated hood and full body protection.
  • Arc Flash Boundary: If the incident energy exceeds 25 cal/cm², the arc flash boundary typically aligns with Category 4 PPE requirements, which means a full arc-rated suit and maximum protection for all exposed body parts.
Probewell | Safety | Arc Boundaries Graphic

Required Personal Protective Equipment (PPE)

Employees operating in areas with electrical hazards must be provided with and must use Arc-Rated (AR) protective equipment. The table below helps safety officers and technicians determine the appropriate PPE based on the distance from an energized part and the associated arc flash risk.

Arc Flash Boundaries and PPE Categories

Arc Flash Boundary Incident Energy Level (cal/cm²) Recommended PPE Category Required PPE
Limited Approach Boundary Typically < 1.2 cal/cm² Category 1 – Arc-rated clothing with a minimum rating of 4 cal/cm²
– Safety glasses
– Hearing protection
Restricted Approach Boundary 1.2 to 8 cal/cm² Category 2 – Arc-rated clothing with a minimum rating of 8 cal/cm²
– Arc-rated face shield
– Leather gloves
Prohibited Approach Boundary 8 to 25 cal/cm² Category 3 – Arc-rated clothing with a minimum rating of 25 cal/cm²
– Arc-rated hood
– Arc-rated gloves
– Leather footwear
Arc Flash Boundary 25 to 40 cal/cm² Category 4 – Arc-rated clothing with a minimum rating of 40 cal/cm²
– Full arc-rated suit
– Arc-rated hood
– Leather footwear

Implementing a Secure Approach to Arc Flash:

By following the approach boundaries defined in the NFPA 70E table, utility companies can implement a secure, systematic approach to managing the risks associated with Arc Flash and other electrical hazards in transformer-rated installations. This proactive strategy helps protect technicians, reduce liability, and ensure the reliable operation of high-voltage systems.

PPE Category 1 to 4 :
The Arc Flash PPE Category is determined by consulting the PPE tables in Article 130.7 of the NFPA 70E standard. PPE categories range from 1 to 4 (with 4 having the highest incident energy rating and requiring the most protective gear).

Best Practice for Safety:

  1. Conduct Thorough Risk Assessments:
    Before starting any work, evaluate the environment and equipment to identify potential hazards. This includes verifying the absence of voltage and ensuring proper grounding.
  2.  Enforce Proper PPE Usage:
    Ensure all technicians are equipped with the appropriate Personal Protective Equipment (PPE) based on the voltage levels and proximity to energized parts and inspect tools and PPE for any damage.
  3. Maintain Safe Approach Boundaries:
    Adhere strictly to NFPA 70E approach boundaries to minimize the risk of electrical shock and Arc Flash incidents.
  4. Regular Training and Drills:
    Conduct ongoing safety training and emergency drills to keep all personnel updated on the latest safety procedures and response strategies and following electrical safety standards and codes.
  5. Regular Inspections and Preventive Maintenance: 
    Schedule routine inspections and maintenance to detect and rectify any potential safety issues promptly.
  6. Leverage Advanced Safety Technology:
    Integrate cutting-edge solutions such as meter testers featuring an innovative dead-front design and wireless connectivity, which minimize direct exposure to live parts. These advanced features ensure greater safety during testing, as seen in Probewell’s latest technology, which also offers unparalleled accuracy and ease of use in a compact format, specifically engineered for safer, more efficient meter testing in the field.

“Safety is not a one-time achievement but an ongoing commitment. In the field of meter testing, there’s always room for improvement, because even the smallest precaution can make the biggest difference”.

Probewell enhances safety in meter and CT-rated site testing with advanced solutions.

Ensuring safety in transformer-rated installations demands a holistic approach—understanding risks, implementing best practices, and most importantly, adopting cutting-edge and proven technologies.

Investing in these advanced technologies, using the right PPE, along with a rigorous preventive maintenance practices, not only protects your workforce but also guarantees the reliable and efficient operation of your installations.

Prioritizing safety today lays the foundation for a more secure and productive future in the utility sector.

References:

Quick Release Latch | NT and WT Series Electrical Meter Tester Accessory | Probewell Lab


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Further Information on Standards and Codes

For those seeking more in-depth information about electrical safety standards and codes, several reputable organizations provide valuable resources.

  • International Electrotechnical Commission (IEC): https://www.iec.ch/
    The International Electrotechnical Commission (IEC) offers global standards, including the IEC 60364 series, which governs electrical installations.
  • National Fire Protection Association (NFPA): https://www.nfpa.org/
    The National Fire Protection Association (NFPA) is responsible for the NFPA 70E standard, which focuses on electrical safety in the workplace.
  • Institute of Electrical and Electronics Engineers (IEEE): https://www.ieee.org/
    The Institute of Electrical and Electronics Engineers (IEEE) provides a wide range of standards related to electrical and electronic engineering, including guidelines for electrical installations and safety.
  • Occupational Safety and Health Administration (OSHA): https://www.osha.gov/
    The Occupational Safety and Health Administration (OSHA) sets and enforces safety regulations to protect workers in various industries, including those handling electrical systems.
  • National Electrical Manufacturers Association (NEMA): https://www.nema.org/
    Finally, the National Electrical Manufacturers Association (NEMA) provides standards for electrical equipment, ensuring safety, performance, and reliability.

Visit these websites to access comprehensive guidelines and resources that can help ensure compliance and enhance safety in your electrical operations.

Maximizing Revenue Integrity in Instrument-Rated Sites: A Guide to Identifying and Addressing Hazards – Probewell Lab v.2

Maximizing Revenue Integrity in Instrument-Rated Sites: A Guide to Identifying and Addressing Hazards – Probewell Lab v.2 150 150 Probewell

Maximizing revenue integrity in instrument-rated sites: A hazard guide –Probewell Lab

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

How to Identify Sources of Hazards While Meter Testing

In today’s complex energy landscape, utilities face the dual challenge of maintaining optimal performance while managing aging infrastructure, growing energy demands, and unpredictable climate conditions. A critical component of this challenge is preventing revenue loss at instrument-rated sites, where undetected issues can lead to significant financial setbacks. Understanding the common causes of revenue loss and addressing them promptly is essential for maintaining operational integrity and customer trust.

Identifying Key Sources of Revenue Loss

Revenue loss can arise from a variety of technical and non-technical factors. Common technical issues include loose connections, incorrectly installed current transformers (CTs), shorted CTs, degrading CTs, open CTs, and incorrect CT ratios. Each of these problems can cause significant discrepancies in energy measurement, resulting in underbilling and subsequent revenue loss.

For example, loose connections in a transformer can increase impedance, impairing the meter’s ability to measure power consumption accurately. Similarly, a CT installed with reversed polarity can cause the meter to register negative power, leading to underreported energy usage. Regular inspections, utilizing the latest methodologies in revenue loss prevention, are crucial to promptly detect and correct these issues.

On a broader scale, improper installations can have significant financial impacts. In Honduras, for instance, 38% of electricity distributed through the national grid is lost due to theft and technical difficulties, contributing to annual financial deficits of approximately $646 million. Such inefficiencies not only undermine the financial stability of the national electricity provider but also highlight the urgent need for robust revenue protection strategies (Peña Flores, 2024).

At instrument-rated sites, similar inefficiencies can result from improper meter installations or calibration errors, leading to substantial revenue leakage. As observed in Honduras, where theft-related losses are significant—39% from residential consumers and 31% from industrial users—it becomes clear that early identification and resolution of these hazards are crucial for maintaining revenue integrity.

Probewell Lab | Protect Against Revenu loss | CT-Rated Site Tester | Photo: John Torenidis
Probewell White Paper | Analyzing Instrument Transformer Site for Revenue Loss Prevention

Tests to Identify Risk Factors
Leading to Some Accidents:

  • Power Quality Test
  • Primary/Secondary Analysis (CT/PT Ratio)
  • CT Secondary Burden
  • Admittance Test

“Maximizing revenue integrity in instrument-rated sites starts with identifying and mitigating hazards. A proactive approach to safety not only protects assets but ensures the accuracy and reliability of every measurement.”

The importance of rutine inspections

Routine inspections are critical in preventing revenue loss. Without them, issues like tampering, meter bypassing, or equipment failure can go undetected, leading to prolonged periods of unreported energy usage. These inspections not only help in identifying and correcting technical faults but also in preventing potential hazards, such as fire risks from improperly installed equipment. Incorporating insights from advanced testing techniques can significantly enhance the effectiveness of these inspections, ensuring that utilities maintain both safety and efficiency.

Modern testing technologies now enable more comprehensive and efficient inspections. For instance, conducting tests directly from the meter socket rather than the test switches reduces the risk of human error and ensures more accurate readings. This method also minimizes the time a meter is out of service, addressing concerns about potential revenue loss during testing. Such an approach aligns with current best practices in revenue protection strategies.

Tests to identify risk factors leading to some accidents:

Power Quality Test
Primary/Secondary Analysis (CT/PT Ratio)
CT Secondary Burden
Admittance Test

Investing in Preventive Maintenance

Preventive maintenance, coupled with routine inspections, is essential for safeguarding against revenue loss and ensuring the long-term success of utility operations. By identifying and addressing risk factors early, utilities can avoid the financial and reputational damage associated with undetected faults. Moreover, investing in advanced testing technologies can enhance the efficiency and accuracy of these efforts, leading to better outcomes and increased customer satisfaction. Insights from revenue protection methodologies indicate that these practices are key to maintaining both operational integrity and customer trust.

References:

Peña Flores, G. (2024). The Honduran Electric Sector Debacle: 30 Years of Confusion and Fraud. ReVista: Harvard Review of Latin America.


Have Questions? We’re Here to Help!
Fill out our contact form, and one of our experts will get back to you shortly.
Click below to get started.

Maximizing Revenue Integrity in Instrument-Rated Sites: A Guide to Identifying and Addressing Hazards – Probewell Lab

Maximizing Revenue Integrity in Instrument-Rated Sites: A Guide to Identifying and Addressing Hazards – Probewell Lab 150 150 Probewell

How to Identify Sources of Hazards While Meter Testing

Pourquoi pas un sous-titre?

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

How to Identify Sources of Hazards While Meter Testing

In today’s dynamic energy landscape, utilities are under increasing pressure to maintain peak performance while contending with aging infrastructure, rising energy demands, and unpredictable climate conditions. A critical aspect of this challenge is preventing revenue loss at instrument-rated sites, where undetected issues can lead to significant financial setbacks. Understanding the common causes of revenue loss and addressing them efficiently is vital for maintaining operational integrity and customer trust.

Identifying Key Sources of Revenue Loss

Revenue loss can stem from a variety of technical and non-technical factors. Common issues include loose connections, incorrectly installed current transformers (CTs), shorted CTs, degrading CTs, open CTs, and incorrect CT ratios. Each of these problems can create substantial discrepancies in energy measurement, leading to underbilling and subsequent revenue loss.

For example, loose connections in a transformer can cause high impedance, impairing the meter’s ability to measure power consumption accurately. Similarly, an incorrectly installed CT with reversed polarity can cause the meter to register negative power, resulting in underreported energy usage. Regular inspections, using the latest methodologies for revenue loss prevention, are essential to detect and rectify these issues promptly.

When considering the broader impact of improper installation, it’s crucial to understand how these issues manifest in different regions. In Honduras, for instance, a staggering 38% of electricity distributed through the national grid is lost due to theft and technical difficulties, contributing to annual financial deficits of approximately $646 million. Such inefficiencies not only strain the financial health of the national electricity provider but also underscore the critical need for robust revenue protection strategies (Peña Flores, 2024).

In instrument-rated sites, similar inefficiencies can arise from improper meter installations or calibration errors, leading to significant revenue leakage. As observed in Honduras, where 39% of theft-related losses come from residential consumers and 31% from industrial users, it’s evident that identifying and addressing these hazards early is crucial for maintaining revenue integrity.

Probewell Lab | Protect Against Revenu loss | CT-Rated Site Tester | Photo: John Torenidis
Probewell White Paper | Analyzing Instrument Transformer Site for Revenue Loss Prevention

Tests to Identify Risk Factors
Leading to Some Accidents:

  • Power Quality Test
  • Primary/Secondary Analysis (CT/PT Ratio)
  • CT Secondary Burden
  • Admittance Test

The importance of rutine inspections

Routine inspections are essential for preventing revenue loss. Without them, issues like tampering, meter bypassing, or equipment failure can go unnoticed, leading to prolonged periods of unreported energy usage. These inspections help identify and correct technical faults and prevent potential hazards, such as fire risks from improperly installed equipment. Leveraging insights from advanced testing techniques can greatly enhance the effectiveness of these inspections, ensuring utilities maintain both safety and efficiency.

Modern testing technologies now enable more comprehensive and efficient inspections. For instance, conducting tests directly from the meter socket rather than the test switches reduces the risk of human error and ensures more accurate readings. This method also minimizes the time a meter is out of service, addressing concerns about potential revenue loss during testing—an approach that aligns with current best practices in revenue protection strategies.

Things to take into consideration when choosing test equipment

  • Safety: Reducing hazards exposure for technicians.

  • Total time on site: Testing both the installation and the meter.

  • Test duration: A meter should be out of service for the shortest time possible. Every minute counts, especially during peak hours.

  • Ease-of-use: Equipment requiring multiple probes and connections can be tedious for the technician and could increase human error, time onsite, and time a meter is out of service.

  • Learning curve: Training on equipment, connections, and software should be short.

  • Latest technologies: State-to-the-art technologies can offer intuitive and comprehensive products.

Investing in Preventive Maintenance

Preventive maintenance and routine inspections are vital for safeguarding against revenue loss and ensuring the long-term success of utility operations. By identifying and addressing risk factors early, utilities can avoid the financial and reputational damage associated with undetected faults. Furthermore, investing in advanced testing technologies can enhance the efficiency and accuracy of these efforts, leading to better outcomes and increased customer satisfaction. Insights from revenue protection methodologies suggest that these practices are key to maintaining both operational integrity and customer trust.

References:

Peña Flores, G. (2024). The Honduran Electric Sector Debacle: 30 Years of Confusion and Fraud. ReVista: Harvard Review of Latin America. Retrieved from https://revista.drclas.harvard.edu/the-honduran-electric-sector-debacle-30-years-of-confusion-and-fraud/


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Fill out our contact form, and one of our experts will get back to you shortly.
Click below to get started.

There is Always a Way to Be Better Protected while Metering Testing: Do Not Compromise Your Safety – Probewell Lab

There is Always a Way to Be Better Protected while Metering Testing: Do Not Compromise Your Safety – Probewell Lab 150 150 Probewell

There is Always a Way to Be Better Protected while Metering Testing: Do Not Compromise Your Safety – Probewell Lab

Probewell Lab | Mariana Napoli | Sales Derector
Mariana Napoli | Sales Director | [email protected]

Ensure optimal protection during meter testing: never compromise on safety

Working with transformed-rated installations is inherently risky due to the high voltage and power levels involved. Ensuring safety for metering technicians is paramount to prevent accidents and fatalities. Therefore, the continuous improvement in protection measures is essential to enhance protection and minimize risks in these environments.

Understanding the Risks

High Voltage and Electrical Hazard  

Transformer-rated installations often handle high voltages that can cause severe injuries or death upon contact. The primary risks include electrical shocks, arc flashes, and equipment failures, all of which can occur if safety protocols are not strictly followed.

Environment Factors  

Outdoor installations expose technicians to additional hazards such as adverse weather conditions, wildlife, and difficult terrain, which can complicate safe operation and maintenance procedures.

ST-3/Flex-2500 | Rogoski Coil | ST-3/XT3 | Single-phase and polyphase CT-Rated Site Tester | Probewell Connect 2.0 | Transformer-Rated Site Tester | Installation Diagram with PT and CT Accessories | Primary/Secondary Analysis | BurdenTest

Key Safety Concepts

Arc Flash and Arc Blast

An arc flash occurs when an electrical current passes through the air between conductors, releasing intense heat and light. An arc blast is the pressure wave caused by the arc flash, which can propel objects and cause sever injuries. Understanding these phenomena is crucial for implementing effective safety measures.

Personal Protective Equipment (PPE)

PPE is essential for protecting technicians from electrical hazards. This includes flame-resistant clothing, safety glasses, rubber gloves, face shields, and dielectric boots.
Proper PPE selection and usage can significantly reduce the risk of injury.

Dummy Image

Best Practices for Safe Operations

Pre-Installation Safety Operations

Leading thorough safety checks before any work is crucial. This includes verifying the absence of voltage, ensuring grounding is in place, and inspecting tools and PPE for any damage.

Safe Work Procedures

Adhering to safe work procedures, such as maintaining safe distances from live equipment, using insulated tools, and following electrical safety standards and codes, is essential to minimize risks.

Examples and Practical Tips

PPE Usage

  • Flame-resistant clothing: Protects against burns from arc flashes.
  • Safety glasses: Protect eyes from debris, chemicals, and harmful light.
  • Rubber gloves: Provide a barrier against electric shock.
  • Face shields: Shields the face and eyes from arc flash hazards.
  • Dialectic boots: Insulate against ground potential differences.
  • Insulated tools: designed to prevent or reduce the flow of electric current from the tool to your body.

Proper Tool Handling

The use of tools specifically designed for high-voltage work, is crucial. Additionally, adopting new technologies that eliminate unnecessary wiring, significantly reduces risks and increases precision in tasks and meter testing procedures.

Tests to identify risk factors leading to some accidents:

Power Quality Test
Primary/Secondary Analysis (CT/PT Ratio)
CT Secondary Burden
Admittance Test


QUOTE

Advanced Solutions for Enhanced Safety

Dead-Front Metering Systems

Traditional transformer-rated installations require technicians to handle live components, posing significant risks. Dead-front metering testers, which isolate live parts, can drastically reduce these dangers by preventing direct contact with live electrical components.

Wireless Connectivity

Incorporating wireless connectivity into metering systems eliminates the need for technicians to handle cables directly. This not only reinforces safety by reducing the physical interaction with electrical components but also improves efficiency and accuracy by reducing through easier data collection and remote testing.

Regular Equipment Maintenance

Routine upkeeping of equipment is fundamental for ensuring long-term safety and operational efficiency. Regular inspections, repair and calibration, and servicing support, identify and address potential issues before they lead to failures or accidents. Implementing a robust maintenance schedule ensures that all metering testers and tools, are functioning correctly and safety.

Optical Pickup | Pulse Pickup | NT and WT Series Electrical Meter Tester Accessory | NT & WT Series Electrical Meter Tester Accessory | Probewell Lab

Ahead of the Curve: Embracing Safety

Preserving security in transformer-rated installations requires a wide-ranging approach that includes understating the risks, implementing best practices, and foremost, adopting advanced and tested technologies.

By equipment technicians with the right PPE, enforcing strict safety protocols, and utilising innovate solutions like dead-front metering testers and wireless connectivity, utility companies can significantly reduce the risks associated with high-voltage work.

Investing in these advanced technologies and sustaining rigours maintenance practices, not only safeguards your workface but also ensures the reliable and efficient operation of your installations.

Prioritizing safety today paves the way for a more secure and productive future in the utility sector.

References:

Tests to identify risk factors leading to some accidents:

Power Quality Test
Primary/Secondary Analysis (CT/PT Ratio)
CT Secondary Burden
Admittance Test

Tests to identify risk factors leading to some accidents:

Power Quality Test
Primary/Secondary Analysis (CT/PT Ratio)
CT Secondary Burden
Admittance Test