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Electrical tests Insulation resistance test Also, most of these tests are used in conjunction with each other to verify results, as well as provide the most accurate picture of motor health.
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Since there are many ways in which a motor can fail, there are at least as many (if not more) ways to test a motor’s integrity. Note that there are many methods for diagnosing issues within a motor, and the ones presented in this article are only the most common tests used.
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Electrical tests involve measuring the current, resistance, or electrical properties of motors, while mechanical tests often look for damage/defects within the rotor which can cause imbalance. This article will look at some common electrical tests and then at some mechanical tests.
#SINGLE PHASE MOTOR WINDING RESISTANCE PROFESSIONAL#
Services are available that will do this testing for you, providing a professional evaluation with none of the hassles of testing your motor on your own. While motor testing is tedious and difficult, it is well worth the investment, as the bill for testing a motor is always smaller than the bill to replace a motor (not to mention the losses associated with delays and system downtime). Electric motor testing is usually the first item cut from the budget when trying to save money on a project, but putting time and money aside for motor testing will reduce failure rates, increase efficiency, and ensure operator safety. A previously-broken motor will never run at the same efficiency, even if repaired, so testing can make sure that the motor retains its performance over the maximum value of its useful life. It is highly recommended that motor testing be done, as once an electric motor accrues damage it is often irreversible (known as “core damage”). Each test can apply to most AC and DC motors, but each method of testing is dependent on the construction and application of the motor being evaluated. Mechanical motor testing often includes evaluating a motor’s rotor for cracks and shorted laminations. Electrical motor testing evaluates static parameters such as insulation (the barriers between winding interconnections/winding to earth), wire damage, current leakage, and/or dynamic parameters such as balance, temperature rise, distortion, etc. Electric motors are highly integrated machines that can develop faults in many areas and, if left unattended, a damaged motor can result in dangerous working conditions.
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The main objective of motor testing is to assess the integrity of a motor and ultimately prevent the occurrence of unnecessary failure. Test equipment set-up for rotational balancing of motors and rotors. This article will go over the basics of motor testing and what types of motor testing are provided. There are many kinds of motor testing services, which can not only prevent failures but make sure the motor is working at its optimal level. Motor testing services are available to help ensure your motor is working correctly by testing certain standard parameters, which can reveal potential risks. Steps to prevent motor malfunctions should be given due consideration, especially when using a complex motor, as repairs can result in significant, costly delays and downtime. Electric motors may or may not be expensive to purchase, but they are almost always more expensive to repair.