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The most honest information about an electric motor's health usually comes from its vibration. When bearings begin to wear, when rotor imbalance develops, or when fasteners loosen,... More Details

When an electric motor fails or its efficiency drops, the first question that usually comes to mind is "should I buy a new one?" Yet a motor's life does not end with its first faul... More Details

How Low-Loss Electrical Steel Laminations Improve Motor Efficiency When we list the factors that determine an electric motor's efficiency, the first things that usually come to min... More Details

For many years, industry produced heat by burning fuel. Today this equation is changing: industrial heat pumps take low-temperature waste heat and lift it to the higher temperature... More Details

Diagnosing Broken Rotor Bars with Motor Current Signature Analysis (MCSA) One of the most critical yet hardest-to-reach parts of an asynchronous motor is its rotor. The rotor forms... More Details

At the heart of a data center sit the servers, but the infrastructure that keeps those servers running without interruption is the cooling system. If the heat produced by thousands... More Details

dv/dt and Reflected-Wave Overvoltage on Long Motor Cables The cable between a frequency inverter (VFD) and an asynchronous motor is a component that is often overlooked, yet it is ... More Details

When buying an electric motor, many businesses reach for a slightly larger frame "just to be safe." On the surface this feels prudent, but it quietly turns into a trap that drains ... More Details

Shaft Voltage and Bearing Currents in VFD-Driven Motors Driving an asynchronous motor with a frequency inverter (VFD) brings major advantages in energy savings and flexible speed c... More Details

The correct operation of an electric motor depends not only on its power, speed and efficiency, but also on how it is mounted. The way the motor connects to the machine, that is th... More Details

When you look at the nameplate of an electric motor, you see that the power is sometimes written in kilowatts (kW) and sometimes in horsepower (HP). The speed is given as revolutio... More Details

The small metal plate on an electric motor is, in effect, that motor's identity card. Among the codes printed on this nameplate, perhaps the most asked about and the most critical ... More Details

Power plants, although they are facilities that generate electricity, also consume a large amount of electricity internally. Most of this consumption comes from the electric motors... More Details

Induction motors are divided, by rotor construction, into two broad families: the squirrel cage (short-circuited bar) rotor and the wound rotor (slip-ring) motor. From the outside ... More Details

Aggregate and quarry plants are among the most demanding operating environments for electric motors. In these plants, where tonnes of rock are crushed, screens vibrate constantly a... More Details

Induction motors are the most widely used sources of motion in industry, and at the heart of how these motors work lies the concept of slip. An induction motor can only produce tor... More Details

When selecting an electric motor, the first value most people look at is the power rating in kilowatts. Yet the concept that truly determines how a motor will behave in real life, ... More Details

DRG MOTOR Efficiency in Agriculture and Irrigation Systems provide reliable power for irrigation, water pumping and agricultural processing applications. Since agricultural systems... More Details

Peak Efficiency: DRG IE4 Electric Motors, are high-efficiency motors in the IE4 "super premium efficiency" class according to the IEC 60034-30 standard. IE4 motors offer lower ener... More Details

IE3, IE4 and IE5 Class High Efficiency Electric Motors - DRG MOTOR, are in the IE5 "ultra premium efficiency" class, the highest level of the IEC 60034-30 standard. IE5 motors prov... More Details