Protection Measures With Three-Phase Geared Motors

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The protection of the drive motor must be taken into account as early as the planning stage and is of high importance in both the installation and operating phases. This book offers a sound overview of possible environmental influences and the protective measures to be implemented use the various degrees of protection as its starting point. The various types of motor overloading are considered in detail with particular emphasis on the protection of the motor winding. Transmission and lubrication problems are also discussed, as is the selection of the installation location. Special chapters are devoted to particular forms of loading, such as long term mechanical overloading, short-term torque shocks and extreme torque peaks. The book concludes with a survey of protective measures available for mechanical components, gear units and motors. The author has over forty years experience with the problems and developement of electrical drives and is able to draw on this vast treasure-chest of knowledge to produce a book that will doubtless soon become an indispensable reference work in the planning and operation of three-phase drives.