A Computer Aided Design of Wedge-Type Rotor-Bars in Squirrel-Cage Induction Motor. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 47, Volume 10, Issue 2, December 1985, Page 53-69 PDF (150.48 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2021.177217 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Hassan Ali Abou-Tabl* | ||||
| Assistant Professor of Electrical Power and & Machines Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt. | ||||
| Abstract | ||||
| The deep-bar rotor induction motor is one of the most popular motors in the high starting-torque group of three-phase squirrel-cage induction motors. This motor is commonly fitted with deep-bars, of the wedge-form, on the rotor-side. Optimising the dimensions of these bars is a tedious work, especially when the motor is required to exert a strting-torque which exceeds the normal range. This paper presents a computer aided design of the wedge-type rotor-bar to fulfill this requirement. The design concept, relating the bar-dimensions to the basic group of the motor specifications, is given by taking into consideration the skin -effect just at starting. The iterative method employed to obtain the proper cross-section area of the conductor , as well as the method of checking the preliminary dimensions, are also explained in this paper. The design process is written in form of a digital program which gives for a given output power, the proper bar-dimensions for an extended range of starting-torque ratios. The results show that for a given output power, a starting-torque ratio higher than usual can be obtained on the expense of a little increase in the starting-current ratio. | ||||
|
Statistics Article View: 92 PDF Download: 98 |
||||
