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Solid Integral Poles Synchronous Motors

Solid Integral Poles Synchronous Motors
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Solid Integral Poles Synchronous Motors - 1

SM40 Line SM40 motors are manufactured with integral solid poles ensuring mechanical strength and stability to the rotor set. Power Ratings ■ Output: 5,000 up to 35,000 kW ■ Voltage: up to 13,800 V 8,000 up to 50,000 HP 50/60 Hz ■ Frame sizes: 800 to 1,250 (IEC) ■ Poles: 4 128 to 200 (NEMA) Advantages of WEG SM40 Sync Motors Integral Rotor Construction SM40 motors offer high reliability and extended maintenance-free operation. Shaft and poles are machined from one single steel piece, resulting in strong and stable construction, which provides: ■ No risks of loosen poles or loosen bolts ■ No stoppages required to check bolts and poles tightness High Starting Torque The electric current induced on the surface of the pole shoes, known as eddy current, provide the high starting torque and low starting current observed during the asynchronous start of the solid poles synchronous motors. The higher starting torque allows SM40 to be used in heavy starting loads, such as centrifugal compressors, large fans, refiners and others. Low Starting Current The low starting current is an important economical advantage of Line SM40. Smaller impact in the power grid and cost reduction with related electrical equipment such as circuit breakers, transformers, cabling, etc. are benefits provided by SM40 motors. Power Factor Synchronous motors can help to reduce energy costs and to improve the power system efficiency by supplying reactive energy to line they are connected to. Return of investment can be achieved in few years. Constant Speed SM40 motors are capable of maintaining steady speed operation during voltage oscillations or even overload conditions within the limits of pull-out torque. High Efficiency SM40 motors are designed to provide high efficiency under a large range of operational conditions providing significant savings with energy costs along its lifetime. Applications The high starting torque provided by the SM40 solid salient pole synchronous motors are the best solution to accelerate high inertia loads such as: ■ Centrifugal compressors ■ Pulp refiners ■ Pumps ■ Fans Industries running 24/7 such as Oil & Gas, petrochemical, mining, steel and water also take excellent advantages from SM40 synchronous motors, since the benefit from the higher reliability and efficiency becomes even higher.

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Solid Integral Poles Synchronous Motors - 2

Solid Integral Poles Synchronous Motors SM40 Line Construction Features Rotor SM40 rotors are manufactured with integral solid salient poles, made from one single steel piece, guaranteeing mechanical strength and stability to the rotating set. The windings, properly fixed to the poles, are insulated with high quality materials. Enclosure SM40 motors can be designed with different enclosures and cooling methods, depending on the customer / application requirements: IC01 - WPII; IC616 - TEAAC; IC81W - TEAWC. Brushless Exciter The brushless excitation system eliminates periodic brush and...

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