F1587FC - how to through the insulation resistance testing perform preventive maintenance

On June 28, 2021|Insulation tester

Insulation test to protect and extend the service life of electric system and electric motors is very important.Regular maintenance motor insulation state test can provide valuable information, to determine what happened performance problems, help predict possible system failure.Identify and fix problems, to prevent complete failure, not only can make the system get rid of the trouble, will also extend the service life of equipment.

In order to ensure the sustainability of the preventive maintenance plan and the success rate, need what information from insulation resistance testing?

Comprehensive, high quality data is the foundation of each preventive maintenance plan for success.Good record keeping habits should cover project list (as shown in figure 1), and make the process simpler and more time.Compared wit雷竞技apph the alternatives on the market, and the Fluke Fluke 1587 FC Connect ® software has three major advantages:

Us雷竞技appe Fluke Connect tools and software, test results from the tool can be transmitted to the software.Not only including the insulation resistance and the test time stamp, but also include relevant information, for example, test duration and the output voltage temperature compensation (details please see page 2).
May, in accordance with the equipment or work order sorting data, simply click on it.
You can enter text and voice information, facilitate communication and sharing.

How do you know a certain insulation resistance value is good or bad?

Should be regularly (every 6 months, for example) insulation resistance spot check, to track the insulation integrity along with the change of the service life of the motor or key equipment.

When you have 雷竞技appseveral months of test results, Fluke Connect software Assets (to buy) alone can be automatically generated according to the result of historical selective trend chart (see figure 2).From the graph, it is easy to identify performance problems, on the spot can be real-time decision-making.

Wha雷竞技appt is a Fluke Connect ®?

雷竞技appFluke Connect is a set of preventive maintenance software platform, the use of wireless way will Fluke test tools with smartphones and mutual connection, the clouds to see measurement, drawing, sharing and storing data, trend analysis and further in-depth analysis.The complete system including with the function of the FC testing instruments and iOS or Android applications, and Web based software, can be used by a computer.

Staff using test equipment staff use or vibration test instrument - data, data are stored in the mobile application and upload it to the cloud.Software to help organize data, and provide management analysis tools, in order to better maintenance decisions.

Th雷竞技apprough the Fluke Connect for maintenance and fault diagnosis

Testing tools
Tablets, smart phones, laptops
Cloud server

Figure 1. The complete maintenance records not only contains the time point of measurement data, and include detailed information on equipment under test, test parameters, related to the work order.

Test data and time stamp
Insulation resistance value
The output voltage
The test voltage range
The test of time
Equipment temperature compensation
The device name being measured
Work order no.
Text annotation
Voice comments
Export test results

Another way to test the integrity of the insulation is to perform polarization index (PI) and dielectric absorption ratio (DAR) test.The definition of PI for 10 minutes resistance and resistance ratio of 1 minute.Medium dielectric absorption than said with 30 seconds to 60 seconds resistance and the ratio of the resistance value.Using 158雷竞技app7 fc and Fluke Connect software, you can check the two test real-time trend diagram (see figure 3), fast identification of the insulation of the water and polluted

Insulation resistance test, why is it important to have temperature compensation?How should do?

Basic principle is that when the temperature rises, the insulation resistance in the fall.

According to the IEEE standard, 43 modification should be made for all resistance measurements by using constant, after temperature compensation, 40 ° C (104 ° F).Higher than the above baseline temperature, 10 ° C per deviation (18 ° F), resistance will be halved.Every 10 ° C below baseline values (18 ° F), the resistance will be doubled.

Figure 2. The insulation resistance spot check trend chart

Motor is put into use
Pollution, such as aging effect
The motor insulation failure
After the wound status again
Change the state of equipment, tag questions

Figure 3. PI/DAR test pattern

Two timing resistance test: PI/DAR
The ratio of 10/1 minutes: if less than 2.0, that means insulation status may be damaged
Curve slope of insulation condition.Good good (curve 3) insulation resistance will continue to increase.
Wet insulation or fissures (4) curve shows relatively constant resistance.

To achie雷竞技appve the above purpose, Fluke Connect ® software to perform calculations, including temperature compensation.You just need to get the temperature of the device under test readings.雷竞技appFluke 1587 FC insulation multimeter can contact temperature measurement, and to transmit data directly to your mobile phone on the Fluke Connect applications (see figure 1).The manual calculation has become history, you can arrange for test and resistance, accurate measurement as part of the preventive maintenance plan.

How to share test results with your boss and colleagues?

After you capture c雷竞技appomplete test results, the result will be automatically uploaded to FlukeCloud ™ storage.You can share the data with colleagues on the team.As the team's form and not only grow over time, everybody on the team can access measurement data.All data is stored in one place, there is no data island.

In ad雷竞技appdition, the use of Fluke Connect ® application, can quickly generate a report at the scene (see figure 4), and sent via email.In this way, you will be able to get fast answers to questions or the authorization of the next step

Figure雷竞技app 4. Using FlukeCloud storage save the test results, field to create reports, and share with colleagues.

雷竞技appFluke 1587 FC insulation multimeter

雷竞技appFluke 1587 FC digital insulation tester and a fully functional, true RMS digital multimeter integration in small, handheld instruments, realize a wide range of versatility, is suitable for fault diagnosis, and meet the preventive maintenance.Th雷竞技apprough the Fluke Connect ® platform provides four powerful diagnostic functions:

PI/DAR timing than test with TrendIt ™ graphics, faster recognition of water and contaminated insulation problems.
Th雷竞技apprough the Fluke Connect to realize storage, without having to write a result, reduce errors, can preserve the historical trend data changes over time.
Temperature compensation are realized by the application, to create the right baseline and related historical comparison.
Asset tracking and trend of 雷竞技apphistorical information, identify the degradation over time, can use a Fluke Connect Assets asset management functions (to buy) alone on-site real-time decision making.