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What Is the Effect of Harmonics on Electric Motors?
Ideally, the voltage and current in an electrical supply take the form of a smooth sine wave. Today, however, many electronic devices and drives distort this clean wave, creating u... More Details
Electric Motor Guide & Technical Info
Knowing the basics is essential to choosing the right motor. In this category you will find guide content on the electric motor working principle, motor types, efficiency classes and selection criteria. Get to know the world of motors with the technical knowledge of the DRG Motor expert team.
Frequently Reviewed Topics
- What is an electric motor? A machine that converts electrical energy into mechanical (motion) energy.
- What is an asynchronous motor? The brushless, durable and most common induction motor type.
- What are IE classes? Motor efficiency levels from IE1 to IE5.
- Where are asynchronous motors used? Pumps, fans, compressors, conveyors, cranes and more.
Motor Selection Tips
For the right motor, power (kW), speed (rpm), efficiency class, body material and mounting type should be considered together. Our high efficiency motors page guides you on efficiency and the power and speed options page on power/speed.
Frequently Asked Questions
What is the difference between asynchronous and synchronous motors? In an asynchronous motor the rotor turns slightly slower than the magnetic field; in a synchronous motor it turns at the same speed.
Why is motor efficiency important? High efficiency does the same work with less electricity, lowering operating costs.
The Right Choice with DRG Motor
DRG Motor supports businesses on both the product and knowledge side. By reviewing this guide content you can choose the right motor more consciously, and contact us via drgmotor.com for technical questions.
Efficiency Classes in Brief
Motor efficiency is classified as IE1 (Standard), IE2 (High), IE3 (Premium), IE4 (Super Premium) and IE5 (Ultra Premium). The higher the class, the lower the energy loss and the greater the savings. Which class suits you is determined by your running hours and power needs; review our guide content for details.
Which mounting type is needed? Foot (B3) mounting is used in most applications, while flange (B5) or combined (B35) mounting is preferred where direct coupling is required.
How to Keep an Electric Motor's Temperature Under Control?
An electric motor heats up to a certain degree while running; this is natural. However, overheating is the motor's greatest enemy. High temperature wears out the insulation, strain... More Details
When Is a Brake Motor Needed?
When an electric motor is switched off, it does not stop immediately; because of inertia, it keeps turning for a while. In most applications this is not a problem, but in some it i... More Details
Why Is Grounding Important in Electric Motors?
The safe operation of an electric motor depends on correct selection and maintenance, and on proper grounding. Grounding safely conducts any leakage currents that may appear on the... More Details
How to Reduce Noise and Vibration in Electric Motors?
The noise an electric motor makes and the vibration it produces directly affect both the comfort of the working environment and the health of the motor itself. Excessive noise is v... More Details
What Is an Electric Motor
How an Electric Motor Works Contact: +90 (542) 666 11 11 An electric motor is a fundamental electromechanical device that converts electrical energy into mechanical energy, enabl... More Details
IE3 Premium Efficiency and the Ecodesign Requirement
In the world of electric motors, IE3 is almost a turning point today. Called "Premium Efficiency", this class has become the legal minimum standard in many countries. That is, in ... More Details
IE5 Ultra Premium and Synchronous Reluctance Motors
The peak of efficiency in electric motors is represented by the IE5 class. Called "Ultra Premium Efficiency", this class covers motors that run with the lowest losses among curren... More Details
How Torque Is Produced in Electric Motors
When we talk about an electric motor's power, we often look at the kilowatt figure; yet what actually moves a load is torque. Torque is the turning force a motor produces on its s... More Details
What Determines an Electric Motor's Speed (RPM)?
How fast an electric motor turns is not a matter of chance; it is determined from the start by certain physical laws. Two motors of the same power can turn at completely different... More Details
Synchronous vs Asynchronous Motors: Operation and Uses
One of the most common dilemmas in the world of electric motors is the choice between a synchronous motor and an asynchronous motor. Both run on alternating current and both draw ... More Details
How Does an Induction (Asynchronous) Motor Turn?
The asynchronous motor, the most widely used type of electric motor in the world, is the true workhorse of industry. Behind countless machines — from pumps to cranes, conveyors to... More Details
The Rotating Magnetic Field: The Invisible Force That Turns a Motor
Seeing a rotor spin inside an electric motor without a single gear, belt or mechanical link is surprising at first glance. Behind this motion lies an invisible yet extremely power... More Details
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