File Name: motor types and applications .zip
You have remained in right site to start getting this info. For a particular application, the type of electric and control gear is determined by which of the following
The book explores all of the widely-used modern types of motor and drive, including conventional and brushless D. The third edition includes additional diagrams and worked examples throughout. New topics include digital interfacing and control of drives, direct torque control of induction motors and current-fed operation in DC drives. The material on brushless servomotors has also been expanded.
Electric motors play an essential role in almost every industry. Using the right type of motor with high-quality parts and regular servicing keeps your facility running smoothly and prevents damage to the endpoint equipment due to wear or power surges. Gainesville Industrial Electric can help your company select the right industrial electric motors and parts for your applications. Electric motors are machines that convert electrical energy—from either stored power or a direct electrical connection—into mechanical energy through the production of rotational force. The two major types of electric motors are:. Both AC and DC motors use electrical current to produce rotating magnetic fields that, in turn, generate rotational mechanical force in the armature—located on the rotor or stator—around the shaft.
An AC motor is an electric motor driven by an alternating current AC. The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field , and an inside rotor attached to the output shaft producing a second rotating magnetic field. The rotor magnetic field may be produced by permanent magnets, reluctance saliency, or DC or AC electrical windings. Less common, AC linear motors operate on similar principles as rotating motors but have their stationary and moving parts arranged in a straight line configuration, producing linear motion instead of rotation. The two main types of AC motors are induction motors and synchronous motors.
As we know, an electric motor plays a vital role in every sector of the industry, and also in a wide range of applications. There are a variety of types of electric motors are available in the market. The selection of these motors can be done based on the operation and voltage and applications. The main function of field winding is to produce the fixed magnetic field, whereas the armature winding looks like a conductor which is arranged within the magnetic field. Because of the magnetic field, the armature winding uses energy to generate an adequate torque to make the motor shaft turn. Currently, the classification of the DC motor can be done based on the winding connections, which means how the two coils in the motor are connected with each other.
AC motors are highly flexible in many features including speed control VSD - Variable Speed Drives and have a much larger installed base compared to DC motors, some of the key advantages are:. The current trend for VSD is to add more features and programmable logic control PLC functionality, which add advantages but require greater technical expertise during maintenance. In this type of motor, the rotation of the rotor is synchronized with the frequency of the supply current and the speed remains constant under varying loads, so is ideal for driving equipment at a constant speed and are used in high precision positioning devices like robots, instrumentation, machines and process control. Click here for an example Synchronous Motor from RS.
Which is attached to the field with a field coil armature in DC motors, it is called a series motor. Its field coil is made of a low-angle thick wire. Such motors are very high work in the starting. When changes in armament currents are changed in such motors, flux changes also.
Premium Membership. Learn from experienced power engineers. Almost all modern industrial and commercial undertakings employ electric drive in preference to mechanical drive because it possesses the following advantages :. However, the above two disadvantages can be overcome by installing diesel-driven DC generators and turbine-driven 3-phase alternators which can be used either in the absence of or on the failure of normal electric supply.
Special solutions and designs can be realized at any time. We have been manufacturing electric motors for all kinds of industrial applications since
Even though annealed at the mill, fully processed material may require further stress relief anneal after stamping. The stresses introduced during punching degrade the material properties around the edges of the lamination, and must be removed to obtain maximum performance. Because of its lower electrical conductivity, aluminum wire requires a 1.
Заслонка. Беккер повернул рычажок под топливным баком и снова нажал на стартер. Мотор кашлянул и захлебнулся.
Сказал, что он взламывает коды каждые шесть минут и делал это даже пока мы с ним говорили. Поблагодарил меня за то, что я решил позвонить. - Он лжет, - фыркнула Мидж. - Я два года проверяю отчеты шифровалки.
Служащие и конкуренты называли Нуматаку акута саме - смертоносной акулой.
Что?! - хором вскричали Бринкерхофф и Фонтейн. - Он пытался, сэр! - Мидж помахала листком бумаги. - Уже четыре раза. ТРАНСТЕКСТ заклинило. Фонтейн повернулся к окну.
Покойный лежал на спине, лицом вверх, освещаемый лампами дневного света, вроде бы ничего не скрывая.
Так и есть, примерно через каждые двадцать строк появляется произвольный набор четырех знаков. Сьюзан пробежала все их глазами. PFEE SESN RETM - Альфа-группы из четырех знаков, - задумчиво проговорила Сьюзан. - И частью программы они явно не являются.