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» Generated Results for electric motor
2/12/03
The permanent engine of magnet eliminates from the gear boxes
08:03 - DriveIT direct-lead, synchronous, the magnets of NdFeB of uses of engine with AC current, which are resistant to the demagnetization. It provides the high torque to at fallback speed, eliminating the need for the engine from C.C and the replacement and maintenance associated with brush. Circulate in the car the construction of radial-flow of devices and are air or cooled water. The powers extend from the HP 22.670 and include low speeds of 220.600 t/mn. The tension extends from 380.690 Vac. Standard IEC which the sizes of reinforcement of 280.400 are available.
The new permanent engines of magnet of ABB eliminate from the gear boxes (the building on technology of the applications on a smaller scale of this type in the computer industry, where a favorable report/ratio of weight-with-execution is an advantage, this new permanent engine of magnet of direct drive of ABB now provides high exactitude and reliability for the industrial applications which require the high torque with at fallback speed. The engine, in the complement with the DTC of ABB? lead technology, eliminate from the gear boxes and the coders through a range of industries.) NEW BERLIN, Wis., February 7, 2003.. . A new single line of the engines with Permanents AC current of magnet low-base-speed of ABB is the heart of a system known under the name of solution of direct drive of DriveIT. This consists of an engine with Synchrone AC current of permanent magnet of DriveIT, ordered by an ordering of low tension to A.C. of DriveIT, based on the order with A.C. of ACS 600 or ACS 800 and connected directly to a motor/load, without or coder gear boxes of impulse. "it is another jump of quantum in the elimination of the mechanical equipment? gear boxes? what often makes the order of motor/load cumbersome and difficult, "indicated Janv.-Anders Bergman, vice-president and general manager of the electric machines, for ABB Inc, technologies of automation. "with do the complement of this engine with ABB direct the ordering of couple? lead technology, the users now gain the ordering much more precise of load and can use the engine without coder." The permanent engine of magnet is synchronous and eliminates from the brushes, rollings up of rotor -- the permanent engine of the magnet of ABB is a synchronous motor with A.C.. With such an engine, it does not have there no slip of rotor, which provides a better exactitude than standard, asynchronous, engines (see the sidebar). In an asynchronous motor (or induction), the slip changes according to speed and the load. With a synchronous motor, it is simpler to optimize speed, and the elimination of the compensation of slip improves the dynamic order of engine, according to Bergman. Moreover, the elimination of the losses of slip in the rotor of the engine increases the effectiveness of the engine of one (1) to three (3) percent. The permanent magnets in the new engine of ABB simplify the traditional synchronous construction of engine by creating a constant flow in the space of air which eliminates the need for rollings up from rotor and normally sweeps it used for the excitation in synchronous motors. "the result is an engine which combines the execution of high quality of the synchronous motor with the robust design of the engine with asynchronous induction," remarkable Bergman. "and the engine activates directly on the rectifier by the variable ordering of speed." More Power Of a Small Size Of Reinforcement; Magnets of NdFeB -- the new synchronous motor can also provide more power starting from a smaller unit. To actuate the orders integrated of a paper machine directly into 220 - 600 t/mn with a conventional asynchronous motor would require a reinforcement of engine appreciably larger than that of a 1800-t/mn engine. The new permanent type of engine of magnet has, in the majority of the cases, the same size or is even smaller than an existing engine with induction. Are permanent magnets used in the engines of ABB made starting from the neodymium iron boron (NdFeB)? the newest magnetic material on the market. NdFeB is the magnetic material most powerful at the ambient temperature available, with high values of density flux to the very high values of magnetizing. It is also extremely resistant to the demagnetization. And NdFeB is less expensive and less fragile than samarium the cobalt, another rare earth matter employed extensively in the Eighties. The engines were completely examined in several applications before the production. After these successful pilot projects, the first system of direct drive was installed in August 2002 with a paper company in Finland; the engines are used on a line which manufactures materials of packing for the medical products and beauty products. The simple configuration provides the high torque to at fallback speed -- the engines with standard induction, normally designed to run at the low speeds between 850 to 3500 t/mn, in particular good are not adapted to the operation at fallback speed, as their falls of effectiveness with the reduction speed. They can also be able not to provide the sufficient soft couple to low speeds. The use of a gear box is the traditional mechanical solution for this challenge. However, the gear box is a complicated piece of machines which take space, reduce the effectiveness, and need the maintenance and the significant quantities of oil. The elimination of the gear box de via these new permanent configurations of the magnet motors/drive safe of the costs of space and of installation, energy and maintenance, and provide more flexibility in the chain of production and the design of service. Does the engine with AC current also Provide high-couple-with-low-speed -- an advantage traditionally related to the engines of C.C? and, from this manner, also eliminates the need for an engine from C.C and their replacement and maintenance associated with brush. The Operation D' Encoderless Optimizes The Ordering Of Engine; Eliminate the cost -- the order from ABB IT it solution of drive that direct incorporates the direct direct order of couple of the exclusiveness in company (DTC?) technology, which optimizes the ordering of engine and makes it possible the order to function without coder to provide the feedback speed. "the algorithm of DTC makes it possible the engine control of each machine to calculate the state (couple and flow) of the engine 40.000 times a second, which return the order practically tripless," Hollis chuck, director of notes of the line of drives of the ACS 600 of ABB. The elimination of the different coder reduced maintenance, it noted, and the operation encoderless clearly decreases downtime/stoppage -- of this fact increasing a service of production in time of correct operation and the exit. The optimal operation of engine, based on conditions of load, also saves the consumption of energy, bringing back the saving of energy, it said. The permanent magnet circulates in the car in a new role -- their small size and raised exactitude, in the past, were made with the permanent engines of magnet the type preferred for the use in applications of servos and hard orders of computer. But now, the large permanent engines of magnet weigh inside with up to seven tons. The real design of engine is a construction, an air or one water-cooled of radial-flow, with a permanent rotor of magnet. The powers extend from 22 kilowatt to the HP of 670 (17 to 500) and include low speeds from 220 to 600 t/mn; circulate in the car the tensions extend from 380 to 690 VCA. The line is available in standard faces of CEI-braces from 280 to 400. All the usual options and modification available for the traditional reinforcements of engine to cast iron iron induction are also available for the engines of solution of direct drive of DriveIT. The standard modifications include the cooled (TEFC), separated ventilator cooled (TEAO), and units (TEWC) cooled pareau. Since there is not practically no loss of slip of rotor, as in an engine with Asynchrone AC current of induction, does the rotor of the permanent engine of magnet remain fresh? making the density of higher power possible. Water cooling the rectifier of engine can increase the density of power even more. The use of the permanent rotors of magnet in the standard reinforcements of engine with AC current Can double the produced couple. The engine with Permanent AC current of magnet is designed for the operation variable-speed only and must be ordered by an order with A.C. specifically developed for the permanent ordering of flow of magnet. The direct algorithm of ordering of couple of the exclusiveness in ABB was increased to carry out this. The compact boxes of drive with A.C. in the various protection of fence classifies the installation of facility of the system in a large variety of environments of production. Used in the technology of Azipod -- the solution of direct drive of DriveIT was constant out of a single technology developed for a marine application of propulsion. Patented Azipod of ABB? The system used an engine with Synchrone AC current of large permanent magnet and a great order with A.C. of ABB with the software made on ordering of DTC, to create "an engine external for boats of cruising," according to ABB. The system of Azipod increased the effectiveness and the maneuverability of propulsion. With the system, the boats are able to turn 180 degrees in their own length! The solution of direct drive of DriveIT is employed inside and aimed for a crowd of industries, including pulp and paper, of marine propulsion (Azipod), of elevators of ski, elevators, generators of wind-turbine, conveyors of mine, rotatory furnaces (production of ore of cement and iron), and of converting foil and film, paper machines. ABB Inc, technologies of automation, orders, engines and machines, is the largest manufacturer of the world of the electric motors and the orders. In the United States, an integrated channel of the representatives of sales, distributors, and the integrators of system allow ABB, new Berlin, Wisconsin, to provide a complete line of the electric drives of ideal efficiency, engines and machinés systems of drive to a range of industrial and commercial customers. The built products include the A.C. and the variable speed of C.C led for the electric motors of 1/2 the HP to 135.000, the large machines and the orders with A.C., the orders of medium-tension, the systems of the electronics of power and rectifier, the engines with A.C. and of C.C, and the solutions specific to the application of system of drive to satisfy the various needs for customer (http://www.abb.com/motors&drives). ABB (www.abb.com) is a head in technologies of power and automation which allow customers of utility and industry to improve the execution while lowering incidences on the environment. The group of ABB of companies operates in more than 100 countries and employs approximately 146.000 people in the whole world. The operations of the United States of the company use more than 14.000 people to manufacture and other equipment in 40 states. For more information on the electric machines, contact: Telephone De Lars-Erik Thand ABB Inc: 262-785-8678 email: Lars-Erik Thand@us.abb.com for more information on orders with A.C., contact: Telephone De Hollis ABB Inc Of Chuck: 262-785-3505 email: contacts of chuck.hollis@us.abb.com: General information: Telephone De Hollis The United States De Mandrin: 262-785-3505
Company Information:
ABB Metals Systems
16250 W. Glendale Dr., New Berlin, WI, 53151 2840 USA
Phone: 262-785-3200 FAX: 262-785-0417
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