(b) According to the Figures 1.2 and 1.3, it is assumed that the motors are run by 800-Hz and 1700-HZ power output from an inverter for OMM and Teco motors respectively. It is worth noting that with full-load speed (N) for both motors rotating at 47,888 rpm, answer the following questions (i) Determine synchronous speed (Ns), calculate the slip rate and compare them. (ii) Explain the efficiency of these two motors based on the power and the calculated slip rate.

(b) According to the Figures 1.2 and 1.3, it is assumed that the motors are run by 800-Hz and 1700-HZ power output from an inverter for OMM and Teco motors respectively. It is worth noting that with full-load speed (N) for both motors rotating at 47,888 rpm, answer the following questions (i) Determine synchronous speed (Ns), calculate the slip rate and compare them. (ii) Explain the efficiency of these two motors based on the power and the calculated slip rate.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 2PA: You have been given the task of connecting a nine-lead three-phase dual-voltage motor to a 240-V...

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