Techno-economic analysis of slip ring motor replaced by standard squirrel cage induction motor with VSD

H. Dewi, F. H. Jufri, C. Hudaya

Research output: Contribution to journalConference articlepeer-review


Induction motor slip ring-type technology has been widely used in industrial as one of the crucial electrical components to convert energy mechanically. The construction of this motor is more complex than other standardized induction motors such as squirrel cage. The complexity lies in the connection between the rings and brushes which requires more maintenance. Meanwhile, Squirrel cage motor that is supported by a Variable Speed Drive allows its user to start motor smoothly and adjusts the speed more efficiently. In this study, we exclusively investigate the possibility of the outdated technology replacement by using squirrel cage standardized induction motor based on its compatibility and the financial perspective as well. To prevent any coming up problems, the selections of new motor and VSD must fulfil the requirement of the existing system. Technical data were collected from customer's SCADA and nameplates. While the financial calculation was made based on the payback period. In this case, the payback period is projected within two years and the energy saving could reach 69% that basically depends on operation patterns. According to our perspective, standard squirrel cage motor potentially replaces the slip ring motor in which it is not only having a simple operation but also less maintenance and energy cost.

Original languageEnglish
Article number033107
JournalJournal of Physics: Conference Series
Issue number3
Publication statusPublished - 16 Dec 2019
Event4th Annual Applied Science and Engineering Conference, AASEC 2019 - Bali, Indonesia
Duration: 24 Apr 2019 → …


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