INTRODUCTION Standard general-purpose motors have several advantages of importance to the user of electric motor drives. These arise due to the high degree of standardisation in terms of rating, duty, dimensions, electrical and thermal characteristics, and construction and also because they are manufactured in large numbers. The main advantages are their relatively low cost, they are easy to replace directly with another motor without any modifications, they are easy to repair, and are readily available. …showed first 75 words of 1294 total…

…showed last 75 words of 1294 total…place by a magnetic coil, and because of the mechanical interlocking feature, all other switches remain closed. BIBLIOGRAPHY E. P. Anderson & R. Miller, Electric Motors, Theodore Audel & Company, New York. I. Gottlieb, Practical Electric Motor Handbook, Reed Education & Professional Publishing LTD, Oxford. E. H. Werninick, Electric Motor Handbook, McGraw-Hill Book Company Limited, Maidenhead, Berkshire. E. Hughes Revised by I. McKenzie Smith, Hughes Electrical Technology - Seventh Edition, Longman Scientific & Technical, Essex.