Information Sheet #5 - Electric Motor Storage, Proper Storage of Spare Motors.
1.0 Introduction:
When an electric motor is expected to be stored for an appreciable time before it is placed into service, certain steps should be taken to ensure that it will be suitable for operation when it is needed. Improper motor storage will result in seriously reduced reliability and failure.
2.0 Record Keeping:
One aspect of motor storage that is easy to overlook is the importance of keeping a good record that can be retrieved readily. A good method is to attach a form to each motor for recording the date it was placed in storage when all maintenance procedures were completed, and the results of all tests that were performed during the storage period (Figure 1). For motors in long-term storage, a good practice is to replace the form annually (or at other designated intervals) and then file the previous form (or an electronic copy) for future reference.
Also in Information Sheet Blog
Information Sheet #13 – NEMA Motor Repair, Best Practice & Definitions
Information Sheet #12 - Preventive Maintenance of Electric Motors and Benefits
Information Sheet #11 - Brownouts & The Adverse Effect On Electric Induction Motors.
This information sheet discusses the adverse effect brownouts have on electric motors, particularly induction motors and how to manage them.