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Motor Design, Application and Analysis – Part 1
May 7, 2015 @ 8:00 am - 5:00 pm
This is the first part of a two day class designed to show you the fundamentals of motor operation and selection as well as how to design motor circuits. Learn the basics of variable frequency drive application. See how to model various motor parameters for determining a motor’s effect on the power distribution system including voltage flicker, harmonics and torque speed analysis.
TYPES OF MOTORS
Induction, Synchronous, Salient Pole, Wound Rotor
Motor Characteristics, Synchronous and Asynchronous Speed, Slip, Horsepower Ratings, NEMA Design, Motor Efficiency, Voltage Ratings, FLA and LRA Ratings
NEC Article 430 Requirements, Nameplate Information, Short Circuit Protection, Overload Selection, Conductor Selection, Service Factor, Sizing Circuits for Multiple Motors
Duty Cycle Ratings, Sizing Motors for Varying Duty Cycle
Starter Sizes, Reduced Voltage Starting, Motor Starting Time Current Curves, Torque Speed Acceleration Curves
MOTORS AND POWER FACTOR
Reactive Power Requirements, Sizing Power Factor Correction Capacitors for Motor Circuits
VARIABLE FREQUENCY DRIVES
Torque Requirements, Load Characteristics, Vector Drives, V/F Control, PWM Drives, Sizing Requirements, Other Technical Considerations, PWM and Reflected Voltage