On a cold winter morning, an electric motor waiting outdoors or in a chilled warehouse meets conditions at its first start that are very different from those in a warm environment.... More Details
How quickly a motor can bring a load to the desired speed depends on a critical quantity that is often overlooked yet determines both the starting behavior and the life of the moto... More Details
The insulation of large-power electric motors ages silently and over the years. This aging is usually invisible from the outside, until one day the winding insulation collapses and... More Details
The path to selecting the right motor often does not run, as is commonly assumed, through looking only at the power value. What really matters is the character of the load the moto... More Details
An electric motor cannot convert all the energy it draws into mechanical work; part of that energy inevitably turns into heat. In most facilities, this heat is seen as a loss that ... More Details
There is a single graph that best describes the character of an induction motor: the torque-speed curve. This curve shows how much torque the motor can produce at every speed from ... More Details
Looking only at the price tag when buying an electric motor is like seeing only the visible tip of an iceberg. The economic reality of a motor reveals itself across the years you r... More Details
How much load an induction motor can carry, how long it will last and under which conditions it can operate safely are all tightly bound to a single physical phenomenon: the temper... More Details
No matter how high the power of an electric motor is, that power is useless if it cannot reach the shaft. The shaft is the bridge that transfers the rotary motion and torque the mo... More Details
When evaluating the noise of an electric motor, there are two concepts frequently encountered in catalogs and on nameplates: sound power and sound pressure. These two quantities, w... More Details
The life of an electric motor begins not the moment it is first started, but the moment it leaves the factory. Most facilities do not commission a motor immediately after purchasin... More Details
At the heart of choosing an electric motor correctly lies understanding the relationship between three quantities: power, torque and speed. These three concepts, which are often co... More Details
One of the greatest enemies of an electric motor is moisture, which is often invisible to the eye but advances silently. When moisture seeps inside the motor, it weakens the insula... More Details
When you change the speed of a motor in a pump or fan system, knowing in advance how much the flow, pressure and power will change is one of the fundamental questions of engineerin... More Details
The most critical mechanical component that determines the lifespan of an AC induction motor is the bearing, and the vast majority of these bearings are lubricated with grease. Gre... More Details
Induction motors draw not only active power from the grid to do useful work, but also reactive power to build up their magnetic field. This reactive power never turns into work at ... More Details
The IE3, IE4 and IE5 classes represent the three rising steps of efficiency in the IEC 60034-30-1 standard. This code on a motor's nameplate shows how few losses it runs with at a ... More Details
Heavy industrial conditions are environments where dust, vibration, impact and high temperature occur together and the motor faces its toughest test. Crushing and screening lines, ... More Details
IE5 Ultra Premium is the highest efficiency class defined by the IEC 60034-30-1 standard, describing motors in which losses are reduced to a minimum. In continuously running plants... More Details
The IE3 Premium efficiency class is today the most common reference point for industrial motors under the IEC 60034-30-1 standard. The IE3 electric motors DRG Motor manufactures in... More Details
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