ALL-TEST PRO

12/11/2024

Many more upcoming for 2025 just announced on our website here:

https://alltestpro.com/resources/events/

In addition, we will be working with Reliability and Maintainability Center – University of Tennessee again in Summer '25. We will posting more info on that shortly!

ALL-TEST Pro provides in-depth electric motor test tech tips about energized and deenergized motor testing from industry...

11/11/2024

The sacrifice a person gives for the well being of not only their own family and friends, but complete strangers as well, is immeasurable.

We understand that this sacrifice leaves scars, visible and invisible.

Thank you for making that sacrifice for the rest of us - we know thank you is not enough.

Enjoy this day - and every day. Your sacrifices ARE appreciated and we sincerely thank you.

10/15/2024

Great video about motor testing using the AT34EV by Jeff Smit!

For anyone interested in assessing in used in the (not battery testing), take a look:

The ALL-TEST PRO 34 EV allows technicians to test hybrid and electric motors without taking the motor apart. The tool will be available for loan by all EV & ...

09/24/2024

have always been trickier to due to their different motor head. We are proud to announce a new accessory lead set for motors (compatible with our devices) now for sale!

https://shop.alltestpro.com/products/brush-lead-set

09/04/2024

Back at ATP HQ...a quick demonstration of the options on our online and tool, the ATPOL III. For , you can see that the devices are plugged in safely, using our ALL-SAFE accessory product - minimizing hazards. The ATPOL III uses Electrical Signature Analysis (ESA) and does a great job at assessing inefficiencies in power and . It's a must have for in , , and !

Learn more here: https://alltestpro.com/products/power-quality-analyzer-motor-analyzer/

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08/21/2024

If you need help with , contact Thiago Parreiras and the team at PRUFTECHNIK MGS in / . They offer great and on , and ( ). Great work, guys!

08/13/2024

are a great tool for measuring . However, using the resistance measurement alone does not comprehensively assess the entire system.

Electrical , developing and other inefficiencies cannot be determined.

Inductance is dependent on the winding design and to winding position - which also cannot be used for these purposes.

systems using inductance as their core metric will often provide bad readings on good and windings.

In order to obtain the true condition of a motor winding, a must all of the motor components, including resistance, , inductance, phase angle, current frequency response (I/F), insulation resistance, dissipation factor and to ground.

Read more about Motor Circuit Analysis (MCA) here:

https://alltestpro.com/motor-circuit-analysis/

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08/07/2024

To a , a is like a Doctor’s blood pressure cuff.

𝘐𝘵 𝘪𝘴 𝘢 𝘮𝘦𝘢𝘴𝘶𝘳𝘦𝘮𝘦𝘯𝘵 𝘵𝘩𝘢𝘵 𝘩𝘢𝘴 𝘵𝘰 𝘣𝘦 𝘮𝘢𝘥𝘦.

It provides important information, and when it’s bad, 𝘪𝘵’𝘴 𝘣𝘢𝘥.

𝙃𝙊𝙒𝙀𝙑𝙀𝙍, 𝙢𝙚𝙜-𝙤𝙝𝙢 𝙩𝙚𝙨𝙩𝙞𝙣𝙜 𝙤𝙣𝙡𝙮 𝙚𝙫𝙖𝙡𝙪𝙖𝙩𝙚𝙨 𝙩𝙝𝙚 𝙞𝙣𝙩𝙚𝙜𝙧𝙞𝙩𝙮 𝙤𝙛 𝙩𝙝𝙚 𝙞𝙣𝙨𝙪𝙡𝙖𝙩𝙞𝙤𝙣 𝙨𝙮𝙨𝙩𝙚𝙢 𝙩𝙤 𝙜𝙧𝙤𝙪𝙣𝙙. By itself, it does not provide enough information to diagnose overall health.

𝘼 𝙝𝙞𝙜𝙝 𝙢𝙚𝙜-𝙤𝙝𝙢 𝙧𝙚𝙖𝙙𝙞𝙣𝙜 𝙙𝙤𝙚𝙨 𝙣𝙤𝙩 𝙧𝙪𝙡𝙚 𝙤𝙪𝙩 𝙢𝙤𝙩𝙤𝙧 𝙚𝙡𝙚𝙘𝙩𝙧𝙞𝙘𝙖𝙡 𝙥𝙧𝙤𝙗𝙡𝙚𝙢𝙨 𝙖𝙣𝙮 𝙢𝙤𝙧𝙚 𝙩𝙝𝙖𝙣 𝙖 𝙣𝙤𝙧𝙢𝙖𝙡 𝙗𝙡𝙤𝙤𝙙 𝙥𝙧𝙚𝙨𝙨𝙪𝙧𝙚 𝙧𝙚𝙖𝙙𝙞𝙣𝙜 𝙧𝙪𝙡𝙚𝙨 𝙤𝙪𝙩 𝙨𝙚𝙧𝙞𝙤𝙪𝙨 𝙞𝙡𝙡𝙣𝙚𝙨𝙨.

In addition, a 𝗺𝗲𝗴-𝗼𝗵𝗺 𝘁𝗲𝘀𝘁 𝘄𝗶𝗹𝗹 𝗺𝗶𝘀𝘀 𝗶𝗻𝘁𝗲𝗿-𝘁𝘂𝗿𝗻 𝗳𝗮𝘂𝗹𝘁𝘀 𝗶𝗻 𝘁𝗵𝗲 𝘄𝗶𝗻𝗱𝗶𝗻𝗴𝘀, it will 𝗺𝗶𝘀𝘀 𝗽𝗼𝗼𝗿 𝗰𝗼𝗻𝗻𝗲𝗰𝘁𝗶𝗼𝗻𝘀, it can 𝗺𝗶𝘀𝘀 𝗮𝗻 𝗼𝗽𝗲𝗻 𝗽𝗵𝗮𝘀𝗲, and is 𝘁𝗼𝘁𝗮𝗹𝗹𝘆 𝘂𝗻𝗮𝗳𝗳𝗲𝗰𝘁𝗲𝗱 𝗯𝘆 𝗿𝗼𝘁𝗼𝗿 𝗽𝗿𝗼𝗯𝗹𝗲𝗺𝘀.

So should you measure insulation resistance? Of course, but know that much more information is needed to assess motor health.

Combining insulation resistance with other based tests, such as 𝗠𝗼𝘁𝗼𝗿 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀, can give you a complete picture of motor electrical health, whether for or .

07/31/2024

ALL-TEST Pro is proud to welcome Christian Webb to our marketing team! Christian graduated from (MSF) and now lives in . He loves to travel and go fishing and surfing. Glad to have you aboard, Christian!

07/10/2024

Getting everything ready for Reliability and Maintainability Center – University of Tennessee on July 22nd! If you can't attend this in-person event, there are many Virtual Training opportunities coming up! Read more here: https://alltestpro.com/reliability-engineering-training/

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06/18/2024

𝗖𝗼𝗻𝗻𝗲𝗰𝘁𝗶𝗼𝗻 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻𝘀 𝗙𝗼𝗿 𝗧𝘄𝗲𝗹𝘃𝗲 𝗟𝗲𝗮𝗱 𝗠𝗼𝘁𝗼𝗿𝘀 - 𝗠𝗼𝘁𝗼𝗿 𝗖𝗶𝗿𝗰𝘂𝗶𝘁 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 (𝗠𝗖𝗔)
Three phase motor winding each have a start to the phase and the end to the phase. These phases are then connected in a DELTA or WYE configuration. Any unbalance in test results will show up regardless of the connected configuration. If the test result is to be used as baseline data, any subsequent testing should be done in the same configuration for trending and comparative purposes.

𝗧𝗼 𝘁𝗲𝘀𝘁 𝘁𝗵𝗲 𝗺𝗼𝘁𝗼𝗿 𝗶𝗻 𝗮 𝗗𝗘𝗟𝗧𝗔 𝗰𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻: Firmly connect leads T1 to T12, T2 to T10, T3 to T11, T4 to T7, T5 to T8, and T6 to T9. Then use the pairs containing T1, T2, and T3 as phases 1,2, and 3 for testing.

𝗧𝗼 𝘁𝗲𝘀𝘁 𝘁𝗵𝗲 𝗺𝗼𝘁𝗼𝗿 𝗶𝗻 𝗮 𝗪𝗬𝗘 𝗰𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻: Firmly connect and insulate leads T10, T11, and T12.
Then connect leads T4 to T7, T5 to T8, and T6 to T9 and use 1,2, and 3 as phases connections for testing.

For MCA testing the main importance is that all coils get tested during the test and the recommended connections accomplish this. If an unbalance is detected then individual coils can be tested as discussed below. Individual phases or coils can be tested by performing single phase measurements from the start of a phase or coil to the end of the same phase or coil.

For example, in a DELTA connected 12 lead motor, A phase can be measured from 4 to 9, B phase to 5 to 7, and C phase 6 to 8. For a WYE connected motor, A phase 1-10, B phase 2-1, C phase 3-12. Individual segments can be compared using single phase measurements of individual coils, 1-4, 2-5, 3-6, 7-10, 8-11, 9-12.

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