Motor Selection: Power, Current, Speed, Torque, Frequency
AC and DC motors come in many shapes and sizes. Some are standardized electric motors for general-purpose applications
Alternating Current Motor Drives (Variable-Frequency)
A variable-frequency drive (VFD) system, also known as a variable-speed drive system, generally consists of an AC motor, a controller, and an operator interface
Single-Phase Alternating Current (AC) Motors – Everything you need to know
The single-phase induction motor operates on the principle of induction, just as does a three-phase motor.
Three-Phase Alternating Current (AC) Motors – Everything you need to know
The main difference between AC and DC motors is that the magnetic field generated by the stator rotates in the case of AC motors. A rotating magnetic field is key…
Everything you need to know about DC motors
Direct current motors (DC motor) are not used as much as alternating-current (AC) types because all electric utility systems deliver alternating current. For special applications, however, it is advantageous to…
Understand the basic electric motor operating principle
An electric motor converts electric energy into mechanical energy by using interacting magnetic fields. Electric motors are used for a wide variety of residential, commercial, and indus-trial operations. This chapter…
DESIGN OF MACHINERY [PDF]
This text is intended for the kinematics and dynamics of machinery topics which are often given as a single course, or two course sequence, in the junior year of most…
Automotive Handbook [PDF]
Automotive engineering has become an extremely complex field over the last few years and decades. It is becoming increasingly more difficult to command an overview of the entire field and…
Solenoids and Solenoid Valves – Motor control divides
An electromechanical solenoid is a device that uses electrical energy to magnetically cause mechanical control action. A solenoid consists of a coil, frame, and plunger (or armature, as it is…
Relays – Motor control divides
An electromechanical relay is a type of actuator that mechanically switches electric circuits. Relays play an important role in many motor control systems