The rotor consists of windings on a soft iron, laminated ferromagnetic core that create or receive electromagnetic energy. The ends of the rotor windings contact a commutator, a rotary electrical switch that periodically reverses current direction in the coils to keep them spinning.
Brands
Motors transform electrical energy into mechanical energy that powers everything from household appliances to industrial machinery. They can operate on either direct current (DC) or alternating current (AC).
The stationary part of the industrial electric motors is called the stator, while the mobile part is called the rotor. The rotor holds conductors that carry current that, when they interact with the field magnets on the stator, cause it to spin. The rotor may also have permanent magnets or electromagnets. A commutator on the rotor switches power to each winding of the armature, turning one into a temporary magnet as it does so. This enables the rotor to align its magnetic field with the stationary one produced by the permanent magnets or electromagnets in the stator, creating the torque that makes that shaft spin. Then, the rotor repeats this process, but marginally offset each time so that it never fully aligns with the magnets. This is called a salient-pole configuration.
Sizes
There are several different sizes of industrial electric motors available for a variety of applications. The torque and horsepower required by the application will dictate the type of motor needed. In addition, the duty cycle (frequency of starts and stops) and environmental conditions will affect the motor specifications.
Industrial electrical motors are powered by AC current and use magnetic field interactions to generate rotational force or torque. They are often used in a variety of industrial applications to power machinery and equipment. They can be found in many settings, including manufacturing, mining, and oil and gas industries. Electric motors are generally classified by their or international ISO frame size, which indicates the shaft height in quarter inches. However, larger motors designed for heavy-duty applications are sometimes categorized by a separate standard. It’s important to determine the proper electric motors for sale size for an application to avoid costly equipment failures or inefficiencies. This can be accomplished by examining the application’s environment, operational requirements, and power availability.
Applications
Industrial electric motors are used in a variety of applications across multiple industries. Choosing the right motor requires considering specifications and understanding your application’s requirements. Motors must be properly sized to account for load inertia, speed, and torque to avoid overheating or overloading the system.
The majority of industrial applications use three-phase AC induction motors due to their reliability and low cost. These motors generate shaft rotation by using rotating magnetic fields in the stator to induce electric current in the rotor winding. This current reacts with the existing magnetic field to create torque around the shaft. Motors with a high level of energy efficiency reduce electrical losses and save money on energy costs. Adding a variable-speed drive can further increase efficiency and control motor speeds to match the application’s requirement for tight acceleration and deceleration ramps.
