Choosing Your Electric Motor Repair Partner

Estimated reading time: 3 minutes

Not all motor repair facilities are equal, in fact the difference between a motor repair company and a quality motor repair provider could mean a huge difference for the longevity and efficiency of your repaired motor.

Unfortunately, the industry has no legislation to enforce the quality of the repairs that are carried out, so it falls to the person in need of the repair to do their due diligence, and ensure that they are procuring a high level of quality when choosing a repairer.

Repairers vary from independent 1 man operations working from tiny premises, to multinational businesses operating in various places around the globe. So when choosing your repairer, does big mean better? And does being affiliated with a trade body such as the AEMT guarantee a high standard of repair? The answer is no to both of those questions.

Motor being repaired in the Neutronic Technologies Workshop

When choosing your repairer, you need to ensure they have the appropriate equipment to carry out the repair properly and if the repairer has multiple sites. Make sure they have the equipment needed at the branch you are using. You would be amazed at how many companies I have come across over the years who are poorly equipped or even lack basic essential repair equipment.

What to ask your Electric Motor repairer to demonstrate?

Surge Tester:- Without a surge tester the repairer has no real way of performing electrical tests on the stator. A multi-meter and megger test is simply not capable of testing electric motors sufficiently. In our repair shop we use the Electrom Instruments iTIG III Winding analyser.

Pyrolysis Oven:- One of the major processes of rewinding a motor is to remove the old windings, varnish and insulation. It’s not an easy process unless you have one of these Ovens which you must not mistake for a curing oven, they are very different. It’s surprising how many rewind shops don’t have this equipment but without it you cannot guarantee the ongoing efficiency of the motor after the repair.

Dynamic Balancing:- Another large and expensive piece of repair equipment that is essential to a high quality repair. The balancing machine ensures the rotor assembly is finely tuned and balanced for all speeds of rotation. Remember a slight imbalance on a rotor can quickly degrade bearing life and cause damage to other areas of the machine the motor is connected to.

There are lots of other pieces of equipment that we use in the repair process such as sand blasters, wash tanks, curing ovens, rotor removal equipment, bearing heaters, cranes, mechanical measurement devices and countless other tools, but in my opinion the 3 listed above are by far the most important for any rewind shop to effect a quality and reliable repair.

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    Testing Times!

    Estimated reading time: 2 minutes

    When looking for an Electric Motor Repair partner there are many different factors to consider, such as:

    • Facilities
    • 24/7 Service and Capabilities.

    One of the factors that many are not aware of is the quality of the motor testing facilities of the repair centre. For example how does the repairer perform the test sequences to fully test the motor windings? If the repairer hasn’t invested in quality test equipment there is a good chance that they can’t 100% guarantee the quality of the motor windings. Electric Motors are complex pieces of equipment and they require the right type of infrastructure to carry out a repair correctly and to a high standard. Multi meters and insulation testers just won’t cut it.

    You may be wondering how a full Electric Motor test should be carried out and what equipment should be used? At Neutronic we utilise the latest testing system from Electrom Instruments.

    Check out the demo of our ITIG III Winding Analyzer

    In particular the model we opted for is the ITIG III Winding Analyzer, widely regarded as the most advanced motor test system available. The ITIG III features over 20 different high and low voltage tests including frequency surge and partial discharge. This unique test system allows the user to set up tests and run through them automatically eradicating any potential for human error. When coupled together with the DC commutator option, as can be seen at Neutronic the iTIG III can be also used to test DC Motors to the same high specifications.

    Test equipment such as the Electrom Instruments iTIG III Winding Analyzer don’t come cheap, but it’s the type of investment that will ensure that your electric motor is repaired to the highest possible standard.

    If you would like to learn more about how Neutronic provide world class Electric Motor repairs get in touch.


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