Three-phase induction motors Master line
16Pages

Motors | Automation | Energy | Transmission & Distribution | Coatings Three-Phase Induction Motors Master Line

Three-Phase Induction Motors www.weg.net Three-Phase Induction Motors - Master Line

Master Line The motors of the Master line (M line) stand out for the flexibility of their electrical and mechanical project. They are versatile motors with different configurations suitable for severe environments which demand high resistance and durability, adapting to different applications. Their design is easily customized so as to make them interchangeable with already existing motors, cutting down operating costs with downtime for motor replacement. They can also be designed for inverter operation, enabling accurate speed control, as well as high torques during start. Powers up to...

Maximum efficiency is obtained from the motors by means of modern software applications, which provide high precision to the project. Optimized design, high quality materials and strict control of all the manufacture phases make WEG motors ideal for different industries, such as: Mining Waste Water Cement Oil & Gas Shipbuilding Steel Sugar & Ethanol Cellulose & Paper Mounting Characteristics Manufactured with different configurations regarding mounting, cooling method and degree of protection, they adapt to different operating and environmental conditions. Motors with IEC frame sizes 280 to...

Furthermore, this great versatility allows you to choose the most suitable motor for your application or installation conditions. In order to meet the most demanding world markets, WEG’s quality system is certified by the Bureau Veritas Quality Institute, in compliance with the requirements of ISO 9001, ISO 14001 and ISO 50001. The motors of the Master line are certified by internationally recognized certifying bodies, including INMETRO, CSA, PTB and Baseefa. Motor Line M - Master Line Rotor Type G - Cage A - Rings (wound) Cooling System A - Open self-ventilated - IP23(W) P - Open...

Cooling The motors of the Master line can be supplied with cooling systems which vary according to the type of driven machine, application and environment where they will be installed. Three-Phase Induction Motors - Master Line Totally enclosed Air-air heat exchanger IC 0611 IP55 / IP56 / IP65 Totally enclosed Air-water heat exchanger IC 37A81(W) IP55 / IP56 / IP65

Other Cooling Methods Available ■ Air-water heat exchanger ■ Air-air heat exchanger Totally enclosed ■ Open ■ Open (self-ventilated) Independent ventilation by ducts ■ Independent ventilation ■ IC 01

Manufacturing Frame Made of welded steel plate or cast iron, it is the structural part of the motor, housing, supporting and protecting the active magnetic part of the motor. With rugged construction, it provides excellent strength and low vibration levels to the motor. Stator It is the active magnetic static part of the motor. It is a core composed of pressed silicon steel laminations with slots which house the coils forming the stator winding. The stator core is mounted directly on the frame. Winding The winding process adopted by WEG is especially developed for the voltage and...

Rotor It is the rotating component of the electric motor. Basically composed of the shaft and a pressed silicon steel lamination core. The slots of the core house the cage or the rotor coils, in case of wound-rotor motors. The cage can be made of cast aluminum or manufactured in copper or brass. The rotor is sized considering the torque required at the start and operating conditions of the motor. Insulation System The WEG MICATHERM insulation system is based on the Vacuum Pressure Impregnation process (VPI). Using special epoxy resins, this system ensures perfect insulation of the motor...

Applications Squirrel Cage Motor Due to the versatility of the project, the motors of the Master line can be used in different industries to drive machines or equipment that require variable or constant torque, such as fans, pumps, crushers, conveyor belts, compressors, mills, mixers and others. Wound-Rotor Motors The wound-rotor motors are normally used in loads with high inertia or high resistive torque at startup. They are also used when starting current limitations are present in the power supply system. They are used to drive loads such as: ball mills, cement mills, fans, exhaust fans,...

Supply: 9,900 HP, 13,200 V, 8 poles, IC01 Application: Fan Supply: 9,000 kW, 6,600 V, 8 poles, IC81W Application: Exhaust fan Supply: 2,000 kW, 11,000 V, 4 poles, IC611 Application: Water pump Supply: 6,500 kW, 11,000 V, 6 poles, IC611 Application: Ball mill Supply: 14,000 kW, 10,000 V, 4 poles, IC86W Application: Test laboratory Supply: 12,000 kW, 6,000 V, 4 poles, IC81W Application: Centrifugal compressor Three-Phase Induction Motors - Master Line

Accessories and Special Features The motors of the Master line can be supplied with the accessories and special features listed below, as requested by the customer. In the specification of the motor, it is important to inform WEG of the accessories and special features to be included in the motor. Accessories JJ PT-100 temperature sensors on the stator windings JJ PT-100 temperature sensors on the bearings JJ Thermocouple and thermistors temperature sensors JJ Space heater (for dehumidification) JJ Brush for grounding the shaft JJ otorized/manual system for lifting brushes (for woundM rotor...

Test Laboratory WEG motors are tested according to NBR 5383, IEC 60034, NEMA MG 1 and API in modern laboratories. Capable of testing low and high voltage motors with power up to 20,000 kVA and voltages up to 15,000 V, WEG laboratories feature highly accurate controls and fully computerized test monitoring systems. The tests are divided into three categories: routine, type and special tests. Routine tests are performed in all motors. In addition to routine tests, type and special tests are usually performed in one of a series of the same motors or under the customer’s request. Surge test...