Transcription of Understanding NEMA Motor Nameplates
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Understanding NEMA Motor Nameplates
Understanding NEMA Motor Nameplates Mission Statement 2 is to be the best (as determined by our customers) marketers, designers and manufacturers of industrial electric motors, mechanical power transmission products, drives and generators | Baldor Electric Company The National Electrical Manufacturers Association (NEMA) was founded in 1926 to develop and promote electrical manufacturing standards. | Baldor Electric Company 3 Who is NEMA? Manufacturer type Time rating Service Factor Efficiency Frame Size Design Code Rated horsepower Rated voltage and amps Rated full-load amps for each voltage level Rated full-load speed | Baldor Electric Company 4 NEMA states that the Motor nameplate must show: Frequency Phase Insulation class Rated ambient temperature Locked-rotor code letter | Baldor Electric Company 5 HP Measurement of work done per unit of time | Baldor Electric Company 6 Volts Voltage rating at which the Motor is designed to operate most efficiently Motors are designed to operate at plus or minus a 10% tolerance of this value A Motor with a 460V rating could o
synchronous speed is called “slip”. The motor’s “slip” is ... control with a variable-speed drive. Simply select your industry and the operating duty ... Permanent Magnet 3% Reducers: Worm Gearing Helical Gearing 10 to 30 % Belt Drive: V-Belt Drives Synchronous
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