Large Frame AC Induction Motors
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Large Frame

Why Baldor? Customer Preference 90% 2000 Percentage of of studies conducted The percentages shown reflect resultsresearch studies in which Baldor was chosen most preferred. in which Baldor was chosen as “most preferred” For nearly 100 years, Baldor has strived to provide customers with the best value and reliability in industrial electric motors. That kind of dedication results in satisfied customers and a strong preference for Baldor•Reliance motors, as the chart above shows. Here are just a few of the things Baldor does to earn such recognition: Baldor offers the industry’s broadest line...

Baldor•Reliance Large Frame AC Motors... value customers expect! Baldor•Reliance motors provide industry leading value largely because of their 100+ year heritage of exceeding customer expectations. This includes providing Large AC Motors to customers for more than 50 years and in doing so, gaining a deep understanding of a broad range of industries and critical applications. The Baldor•Reliance product legacy extends from a wide range of general purpose motors to motors designed for the most hazardous and critical application extremes. In addition to Baldor’s being the most preferred...

Baldor Large AC Motors: Built for Reliable Performance Optional fabricated conduit box found on custom built Large AC Motors. Note: The standard stock motor conduit box is cast iron. Inlet cone to direct air into the cooling chamber. This minimizes recirculating air and improves fan efficiency. Class F (or better) insulation system allows windings to withstand higher temperatures resulting in longer life. Medium voltage motors feature formed copper coils with glass mica-wrapped magnet wire, further insulated with Nomex® tape. Lead separator/ gasket between frame and conduit box keeps...

Big Motors can mean Big Savings by understanding how to make Energy Efficiency work for you Why all the talk about Motors and Energy Efficiency? Electric motor-driven systems used in industrial processes consume about 63% of all electricity used in the U.S. industrial sector according to a U.S. Department of Energy report. In a later report the D.O.E. also said that “best practices” have shown an average energy savings of 33% when these practices include motor and motor systems upgrades, including the use of adjustable speed drives. Thinking beyond the Initial Purchase Price The D.O.E. has...

Large AC Motors...In Stock! Baldor stocks a family of Premium Efficient Motors specifically designed for a variety of applications in a wide spectrum of industries. This family of Low and Medium Voltage 2, 4, and 6 Pole TEFC motors extends from 250 Hp through 1250 Hp. Baldor•Reliance motors for stock are a minimum 95% efficient including many ratings that exceed 96%. All these motors built for stock are Class B rise at 1.0 Service Factor and are well suited to drive routine pump, fan and compressor loads as well as driving more critical service loads and operating in severe duty...

Baldor•Reliance Motors Electrical Design Characteristics Specification Standard Design Typical Modifications Service Factor NEMA design B (torque type) Ambient Temperature 40 degrees C >1000V…Form wound copper, Class F 155° C, mica Nomex® tape, 100% solvent less epoxy impregnated (optional on <1000V) ≤1000V…Random wound copper coils with dip & bake Voltage, Frequency Non-standard low, medium and high voltages 1.15 and higher service factors NEMA design C & D (torque type); low inrush current Higher or lower temperatures Sealed (EnduraSeal) windings with two VPI cycles and immersion tested...

Test and Verify Baldor employs state of the art design tools, advanced materials and dependable manufacturing methods to achieve a precise combination of desired performance characteristics. Additionally, both individual components and assembled motors are rigorously tested and proven to meet the specified requirements. Materials and components are tested before assembly to make certain material specifications are being met by suppliers. During the manufacturing process, sub assemblies such as stator and core are tested prior to final assembly. After final assembly every motor gets a...

Insulation Systems for Large AC Motors For motors utilizing form wound constriction for the stator coils there are (3) options available for the type of insulation system used. SolidCure - This is the standard insulation system and is the foundation for all Baldor•Reliance medium voltage motors, and when form wound coils are specified for low voltage motors. It is a Class F rated system using Class H materials. Coils are wrapped with layers of mica imptrgnated nomex tape. Stators recieve additional bracing in the coil-heads, and the whole stator is processed in 100% solid epoxy resin...

Insulation Systems Insulation System - The Enduraseal system has been proven in various laboratory tests with the following results: Coils are engineered specifically for the required voltage and application. • Chemical Resistance - Sealed coils were immersed in solutions of the following chemicals for 500 hours with no degradation: Sulfuric acid, Black liquor, Hydrochloric acid, Sodium chloride, Sodium hydroxide and Detergent. • Thermal Evaluation   Turn Insulation Film Copper Conductor    Strand Insulation Coil Wire - All coils are manufactured with 100% copper wire. The turn...

API 547 and API 541 for Large AC Motors API 547 Users in the Petroleum and Chemical industries sometimes prefer general purpose motors that are easy to specify and still have base features that ensure safe and reliable operation in critical service applications. In response to this need the American Petroleum Institute developed the API 547 standards for form wound induction motors used for general purpose petroleum, chemical, and other industrial severe duty applications. API 547 compliant motors are: • Rated 250 Hp – 3000 Hp with TEFC and WP II enclosures for 4, 6 and 8-pole machines •...