Product brochure. Slip ring motors for heavy-duty and critical plants ABB expertise provides the best solutions to drive the industry

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1 Product brochure Slip ring motors for heavy-duty and critical plants ABB expertise provides the best solutions to drive the industry

2 Strengthen your partnership with a technology leader Choose ABB efficiency and quality. Compliance with Standards to meet world-wide standards IEC CERTIFICATION GOST CERTIFICATION CSA CERTIFICATION Standards IEC, BS, ANSI, NEMA, IEEE, VDE, EN 2

3 ABB s wound rotor motors are suitable for e.g. the demanding applications as follows high starting torque, high inertia low starting current high torque through entire speed range suitable for starting at weak network adaptable for adjustable speed drives Building on over one hundred years of design experience and application expertise, ABB is one of the world s leading manufacturers of high-voltage wound rotor induction motors. Today, our products are widely used within building material industries such as mining and cement, as well as in utilities and water works. At the same time, by continuously developing and incorporating the most advanced design, analysis and manufacturing technologies for all components, we also optimize your operating efficiency and ensure total reliability. These carefully designed and ruggedly constructed motors with fully braced and vacuum pressure impregnated windings are made for heavy-duty operation. The very high efficiency level of ABB s wound rotor motors is mainly achieved by the effective use of high quality materials, advanced ventilation technology and the most sophisticated computer programs for motor design. This high efficiency level enables considerable energy savings during the life of the motor. Our unrivaled manufacturing heritage and track record of building close partnerships with our customers offers you a genuine competitive advantage. ABB premium quality High efficiency Low noise Long life time VPI insulation system Modern design Over 100 years experience in rotating machines 50 years experience in motors manufacturing Global ABB service network ISO9001 quality certification ISO14000 environmental certification 3

4 The most innovative technology for motors and drives More than 100 years of experience for forward-looking products. ABB s customer can enjoy our comprehensive research and development program, which offers the latest technological advancements in motors and drives. ABB can assure you that it will continue to maintain its technological edge in the future. ABB manufactures, markets and sells electric motors and drives, boasting over 100 years of experience in applying medium and high voltage AC machines to virtually all industries. ABB is well known as a reliable supplier of electrical equipment, and has sales and service locations throughout the world. ABB operates in many locations and is available to customers everywhere. Our extensive experience and resources combined with our global multidomestic sales and service facilities make ABB the preferred partner as AC motors suppliers. ABB supplies low voltage motors and high voltage induction motors. 4

5 ABB product range For all needs. For all specialists. Standard range 300 to kw at 50 Hz 200 to 9000 HP at 50 Hz voltage range 380 to V shaft heights: 400, 450, 500, 560, 630, 710, 800, 900 mm horizontal and vertical mounting open and totally enclosed enclosures KW Output in kw 50Hz, 6kV 4p 1500rpm 6p 1000rpm 8p 750rpm 10p 600rpm 12p 500rpm Air/Air Air/Water KW Output in kw 50Hz, 11kV 4p 1500rpm 6p 1000rpm 8p 750rpm 10p 600rpm 12p 500rpm Air/Air Air/Water 5

6 High-quality components for top performance The high-performance ABB solutions in the cement industry. The rotor In all the processes performed in particularly critical environments and with equally difficult work cycles, motors operate in heavy conditions. In particular, rotors can be subjected to vibrations that reduce their useful life. The rotors of ABB motors are made of materials that can withstand these conditions, ensuring low vibration levels through a solid structure and the perfect balancing of each component. The rotor shaft is built to meet the various needs deriving from the specific work cycles and from the related operating conditions, whereas the rotor itself is dynamically balanced at the maximum operating speed. Each weld is performed according to rigorous methods and undergoes several quality checks, while windings are made following criteria that minimize vibrations: a rigid wrapping also prevents windings from being exposed to distorting centrifugal forces. 6

7 The stator The stator has been designed and built, starting from welds, so as to obtain a compact and uniform system, ensuring long operating life, even in particularly difficult conditions, due to special radial ducts that guarantee an appropriate and optimal ventilation. The lamination is insulated from the stator core by means of a heat-resistant inorganic resin (Class F), while windings and connections are insulated by means of mica-based tapes. Once the winding is complete, the whole stator undergoes a special process named VPI (Vacuum Pressure Impregnation), forming a single block that keeps its rigidity over the long machine life. Wiring is simplified by the terminal boxes designed to make wire connection easier and to reduce installation time. 7

8 The bearings Bearings are an essential element for motor operation. The ABB bearing design ensures long operating life and easy maintenance. According to the type of motor (from size to the various operating characteristics), bearings are available in various types as well as in the cylindrical, self-aligning or sleeve version. The antifriction bearings are designed for a 100,000-hour working life and their structure minimizes noise level and prevents dust penetration. 8

9 Advanced slip ring unit Wound rotor motors can be supplied with: permanent contact brushes, or brush-lifting gear. In both cases, the slip rings are enclosed in a housing, at the N-end, separate from the motor housing. This arrangement provides for easy access and maintenance. It keeps carbon dust out of the motor and offers the possibility of having different enclosures and cooling methods for the slip ring housing. Slip rings with permanent contact brushes The slip rings are manufactured from highlycorrosion-resistant Cu-Sn-Ni alloy, and they are helical grooved as standard. Slip rings with brush-lifting gear The slip rings are manufactured from stainless steel and have a smooth, nongrooved surface. After the motor has achieved full speed, the brush-lifting and slip ring short-circuiting gear (BLG) first short-circuits the rotor winding and then raises the brushes from the slip rings. 9

10 Perfect cooling The guarantee of safe technology. The internal air circulation is provided by a shaft mounted fan or a separate blower. In air-to-air cooled motors, the external cooling air is circulated by a shaft mounted fan or a separate blower. The standard versions are always selfventilated. In weather protected motors, the cooling air is drawn through the motor by a shaft mounted fan. Protection is provided by a weatherproof cover which also serves as a silencer. Stator frame construction is designed to facilitate efficient cooling air flow. Slip ring units with permanent contact slip ring brushes are equipped with a similar heat exchanger or protective cover as that of the motor. A shaft mounted fan circulates cooling air through the slip ring unit, filter, and upper cover. This cooling system is isolated from that of the motor, thus providing easy maintenance and inspection. Uniform and efficient cooling of the stator is ensured by radial air ducts in the stator core and spacers between the coil ends. Water-air cooled IP55 IC81W TEWAC Air-to-air cooled IP55 IC611 TEAAC Weather protected IP23/IPW24 IC01 WPI/WPII 10

11 Easy wiring The simplicity of effective technology. The standard terminal box is available with generous space for easy cable connection. Other types of connection boxes can be provided on request. Following types are available: Phase separated Phase segregated Phase insulated with different types of cable connections such as Raychem termination or Elastimold. The box is turnable by 90 to provide cable entry from any direction. The terminal boxes are widely dimensioned in order to facilitate cable fitting as much as possible. Terminal box big size Terminal box small size Phase separated terminal box Phase segregated terminal box 11

12 Contact us ABB SACE A division of ABB S.p.A. BU Machines Via Luciano Lama, Sesto S. Giovanni (MI) - Italy Phone: Fax: /001-02/ Printed in Italy CAL

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