Insulation testing is important to protect and extend the life of electrical systems and motors. Regular maintenance testing can provide valuable information about the state of the motor insulation, determine where performance issues are occurring, and help predict possible system failures. Identifying and correcting problems to prevent complete failures will not only save the system from failure, but also extend the life of a wide range of equipment.
What information does I need to gain from insulation resistance testing to ensure the sustainability and success of a preventive maintenance program?
Comprehensive, high-quality data is the foundation for the success of every preventive maintenance program. Good record-keeping practices should cover the list of items (as shown in Figure 1) and make the process simpler and less time-consuming. The Fluke 1587 FC and Fluke Connect® software offer three important advantages over alternatives on the market:
With Fluke Connect tools and software, test results can be transferred from the tool to the software. This includes not only the insulation resistance value and the test timestamp, but also relevant information such as the output test voltage, test duration, and temperature compensation (see page 2 for details).
Data can be organized by device or work order with a single click.
Text and voice messages can be entered, making it easy to communicate and share.
How do you know if a certain insulation resistance value is good or bad?
Insulation resistance spot checks should be performed at regular intervals (e.g., every 6 months) to track changes in insulation integrity over the lifetime of the motor or critical equipment.
When you have several months of test results, Fluke Connect Assets software (sold separately) automatically generates trend graphs based on historical spot check results (see Figure 2). From this graph, it's easy to identify performance degradation issues and make real-time decisions in the field.
What is Fluke Connect®?
Fluke Connect is a preventative maintenance software platform that wirelessly connects Fluke test tools to smartphones and the cloud to view, plot, share, and store measurement data for trending and further analysis. The complete system includes test instruments with FC capability as well as an iOS or Android app, as well as web-based software that can be used via a computer.
Workers utilize test instruments Staff utilize test instruments or vibration-data, and a mobile app automatically saves the data and uploads it to the cloud. The software helps organize the data and provides management analytics tools to make better maintenance decisions.
Maintenance and troubleshooting via Fluke Connect
Test tools
Tablets, smartphones, laptops
Cloud servers
Figure 1. A complete maintenance record contains not only the measurement data at that point in time, but also detailed information about the device under test, test parameters, and instructions related to the work order.
Test data and timestamps
Insulation resistance value
Output test voltage
Test voltage range
Test time
Device temperature compensation
The name of the device under test
The work order number
Text annotations
Voice annotation
Export test results
Another way to test insulation integrity is to perform polarization index (PI) and dielectric absorption ratio (DAR) tests. PI is defined as the ratio of the 10-minute resistance value to the 1-minute resistance value. The dielectric absorption ratio of the dielectric is expressed as the ratio of the 60 seconds resistance value to the 30 second resistance value. With the 1587FC and Fluke Connect software, you can view real-time trend graphs for both tests (see Figure 3) to quickly identify moisture and contaminated insulation issues
Why is temperature compensation important during insulation resistance testing? What should I do?
The basic principle is that when the temperature increases, the resistance in the insulation decreases.
According to the IEEE 43 standard, all resistance measurements should be corrected to use a constant, compensated temperature of 40 °C (104 °F). Above the above baseline temperature, the resistance value is halved for every 10 °C (18 °F) deviation. The resistance value doubles for every 10 °C (18 °F) below the baseline value.
Figure 2. Insulation resistance spot check trend chart
The motor was put into use
Pollution, aging and other effects
Motor insulation failure
The state after rewrapping
Change the device status, flag the problem
Figure 3. PI/DAR test chart
Two timing resistance tests: PI/DAR
10/1 minute ratio: If it is less than 2.0, the insulation condition may be damaged
The slope of the curve indicates the state of insulation. The resistance of a good insulation (curve 3) will continue to increase.
Wet or cracked insulation (Curve 4) will show a relatively constant resistance.
To achieve this, the Fluke Connect® software performs calculations including temperature compensation. All you need to do is take a temperature reading of the device under test. The Fluke 1587 FC Insulated Multimeter is capable of contact temperature measurement and transmits data directly to the Fluke Connect app on your phone (see Figure 1). Manual calculations are a thing of the past, and you can schedule regular tests and accurate resistance measurements as part of your preventative maintenance program.
How do I share test results with my boss and colleagues?
Once you have captured the finished test results, the results will be automatically uploaded to the FlukeCloud™ storage. You can share that data with colleagues on your team. As the team builds and grows over time, everyone on the team has access to measurement data. All data is kept in one place, and there are no data silos.
In addition, with the Fluke Connect® app, reports (see Figure 4) can be quickly generated in the field and sent via email. This way, you'll be able to quickly get answers to your questions or authorization for the next step
Figure 4. Use FlukeCloud storage to save test results, create reports in the field, and share them with colleagues.
Fluke 1587 FC Insulated Multimeter
The Fluke 1587 FC combines a digital insulation tester and a full-featured, true RMS digital multimeter in a small, handheld instrument for broad versatility for both troubleshooting and preventative maintenance. Four powerful diagnostic capabilities are available through the Fluke Connect® platform:
PI/DAR timing ratio test with TrendIt™ graphics for faster identification of moisture and contaminated insulation issues.
Storage with Fluke Connect eliminates the need to write results by hand, reduces errors, and saves historical trend data over time.
Implement temperature compensation through the app to create correct baselines and associated historical comparisons.
Asset tracking and trend history to identify degradation over time, enabling real-time decision-making in the field with Fluke Connect Assets' asset management capabilities (sold separately).
|
More on that
|
Fluke Hu Zuxin was named the 2022 CAIMRS Leader of the Year
The winners of the 2022 CAIMRS Leaders Awards were announced, and Ms. Hu Zuxin, General Manager and Vice President of Fluke Asia Pacific, was the only woman to receive this year's award.
|
|
With an output value of more than 240 billion yuan in half a year, how to seize the opportunity of lithium battery
Under the guidance of the dual carbon goals of "carbon neutrality" and "carbon peak", the lithium battery industry has ushered in certain opportunities.
According to CCID Think Tank, the shipment of power lithium batteries used in new energy vehicles was 94.1GWh, accounting for 59.4%, occupying a dominant position in the market.
It is widely used in energy storage power stations, 5G base stations and other fields...
|
|
How to set up a mobile calibration lab - Fluke
It's no secret that to ensure the proper functioning of many industries, their equipment needs to be properly calibrated and a regular calibration schedule is implemented. Accurate measurement is always the key to the success of any manufacturing and production process. However, not every device can be sent to a calibration laboratory for calibration on a regular basis. Cause...
|
|
What is a thermal imaging camera?
Infrared radiation (heat) emitted by the measured target is passively received and this heat is converted into a temperature number
All objects above absolute zero (-273*C) emit infrared radiation).
...
|
|
How is steel made in the "carbon neutral era"?
At the same time, the carbon emissions of China's steel industry account for about 15% of China's total carbon emissions.
Steel ...
|
|
Introduction and benefits of Fluke multimeters
Fluke multimeter refers to the instrument of the United States brand Fluke, so Fluke multimeter is referred to as Fluke multimeter
Fluke multimeters are an indispensable measuring tool in our daily lives. According to different use occasions, we should choose the right multimeter. Multimeter...
|
|
【New Product Evaluation】Lighter, thinner, durable
The just-launched Fluke 301 blade series clamp watch has received a lot of attention and praise from engineers because of its lighter and thinner body design.
What about the durability of the new plier meter, let's take a look!
Xiaofu also shares with you,
How does the Fluke 301 be lighter and more ...
|
|
Tutorial on how to use a Fluke multimeter
Fluke Multimeter Tutorial.
Speakers, headphones, dynamic microphones: Using the R×1ω setting, any pen connected to one end and the other pen touches the other end, and it will normally make a crisp clicking sound. If it doesn't sound, the coil will break, and if the sound is small and sharp, there will be a lap ...
|
|
Speed up air leak detection
May 9, 2021 | Basics, Industrial Imaging, Troubleshooting, Energy Management
Even the slightest air leak can add to product and energy waste and lose production time – for a production line that can't function properly without compressed air to run tools and processes...
|
|
Fluke ii900 Industrial Acoustic Imager Resources
Leak detection is simplified
At Fluke, we believe there is always a better solution.
Today's problem: Up to 40% of the world's industrial energy is lost due to leaks in compressed air systems. Due to low air pressure resulting in energy losses and downtime, there are billions of dollars in the world ...
|
|
How to choose the right clamp meter?
When Fluke introduced its first true RMS current clamp timer in the early '90s, it was a huge breakthrough that helped technicians find the root cause of transformer overheating, thermal neutralization, and circuit breaker tripping for no apparent reason. Its true RMS capability in the diagnosis by PC, electronic ...
|
|
Insulation resistor, soul torture
Insulation resistance tester, commonly known as digital shake meter and digital megohmmeter, has been more and more accepted by the majority of electrical people.
Many engineers who have upgraded from the old shake watch, or who have little contact with the new recruits who use the shake watch, often have a lot of confusion when using it.
Let's take stock of these spirits one by one...
|
|
Industrial Ethernet continues to evolve, and you need to pay special attention to these points
Industrial automation has been put on the development agenda by many countries, and more enterprises choose industrial Ethernet for information transmission in today's intelligent manufacturing industry.
How "optimistic" is Industrial Ethernet?
IEEE Global Survey: The Impact of Technology in 2023 and Beyond: Cloud Computing (4 ...
|
|
Fluke 700HPPK Gas Pressure Test Pump - The Past and Present of the "Waist Protector".
A tribute to classic physics (from the pump to the pump)
Since the 17th century, classical physics, founded by great scientists such as Galileo and Newton, has developed rapidly and comprehensively, not only leading the progress of science and technology, but also silently transforming our lives.
Born hundreds of years ago ...
|
|
Fundamentals of leakage current measurement
Application note
In any electrical device, there is a certain amount of current flowing to the ground through a protective ground conductor. This current is generally referred to as the leakage current. The most common way for leakage current is to flow through the insulation around conductors, as well as through filters that protect electronics around your home or office. Then it would be ...
|
|
Power Quality Measurement Technology Issue 6 - The Significance of THD at 40th, 50th and 100th Harmonics?
Everyone knows that THD is Total Harmonic Distortion, which is divided into voltage THD and current THD, which indicates the severity of voltage and current waveform distortion. The larger the harmonic content of the waveform, the more serious the waveform distortion and the larger the THD value. Conversely, the lower the THD value.
That...
|
|
Fluke PV + Energy Storage Industry Solutions
Photovoltaic + energy storage industry solutions
The dual carbon goals of "carbon peak" and "carbon neutrality" drive the development of new energy industries such as photovoltaic and wind power, while new energy power generation has little room for human intervention, large energy difference between peak and valley value, and does not fully match the electricity consumption period.
|
|
How to detect compressed air, gas and vacuum leaks and find hidden profits
June 28, 2021 | Energy Efficiency, Industrial Imaging, Fundamentals, Power Management, Troubleshooting
For industrial plants and equipment, compressed air, gases and vacuum systems are an important source of power conversion. Compared with other resources such as electricity, the use of compressors is simpler, because ...
|
|
Highlight Highlights | Fluke won three CAIMRS 2020 awards, demonstrating the strength of the brand
A few days ago, the results of the "New Century 20-Year Industrial Achievement Award and the 18th Automation and Intelligent Annual Selection of 2019-2020" initiated by China Industrial Control Network were officially released. In this annual selection, with its excellent innovation and excellent market performance in 2019, Fluke ...
|
|
Launch of the flexible and stand-alone in-line thermal imaging camera - TV30
Flexible and independent online thermal imaging camera - TV30 released
The ThermoView TV30 is a mid-to-high-performance industrial thermal imaging system for process automation applications and critical asset monitoring.
The TV30SA is a rugged, edge-computing, and highly integrated thermal imaging solution.
|
|
Contact
working hours
