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- Title
A NEW APPROACH TO PERFORM ACCELERATED RELIABILITY TESTING OF LOW TENSION MOTORS.
- Authors
Basha, Shaik Hussain; Chakravorty, Sudhangshu
- Abstract
Most of the engineers finds it very tedious to do accelerated reliability test of any motor product if it has to be mechanically loaded as it involves lot of difficulties in motor's loading capabilities and its size, which also directly impacts the development time and cost. This is why all the sequences in accelerated reliability test are done on no-load condition which gives results but are not accurate since in field motors are always under loading condition. To overcome all these difficulties, the paper proposes a new approach to perform accelerated reliability testing of low tension 3 phase motors under full load without actually coupling mechanical load to the motor shaft. The approach is simple and easy to implement. In this approach, instead of mechanical loading motor is equivalently loaded just by giving a supply voltage approximately 20-25% greater than the rated voltage to get same load current similar to fully loaded motor across all the three phases. Therefore, the application of proposed approach to perform accelerated reliability testing is experimented on low tension motor and results were discussed in detailed in the paper. From our practical work, the proposed approach has proven more accurate results compared to the results of previously conducted Reliability analysis done on no-load condition. Hence, the approach will definitely leads to get faster and better results in a simple and cost effective way.
- Subjects
SHAFTING machinery; MACHINERY reliability; ACCELERATED life testing; MOTORS; MANUFACTURING processes; ENGINE maintenance &; repair
- Publication
Reliability: Theory & Applications, 2013, Vol 8, Issue 4, p75
- ISSN
1932-2321
- Publication type
Article