Crusher and stone-crushing plants are among the toughest sites for electric motors. Alongside dust, vibration and shock loading, the most sudden and destructive threat, often overl... More Details
45 kW and 55 kW motors sit in industry's most in-demand medium-to-high power class. Frequently found in pumps, fans, compressors, conveyors, crushers and line drives, these ratings... More Details
When an induction motor must be placed far from its supply, the cable length is a parameter often overlooked yet it causes two separate, serious problems. The first, in grid-fed sy... More Details
Motors in the 560 kW and 630 kW class sit at the upper limit of the low-voltage induction motor world. At these ratings you are no longer making an ordinary purchase but managing a... More Details
Stopping a pump or fan motor looks trivial at first glance: you cut the power and the motor stops. Yet on large-diameter pipelines, high-head centrifugal pumps and heavy-impeller f... More Details
Buying a high-efficiency motor is only one part of energy saving. Whatever voltage the motor is supplied with in the field, its real efficiency is shaped by that voltage. Most plan... More Details
In electric motors running on a variable frequency drive (VFD) there is a danger invisible to the eye that quietly kills the bearing: bearing current. The drive's fast switching cr... More Details
The synchronous reluctance motor (SynRM), one of the strongest representatives of the IE5 (Ultra Premium) efficiency class, stands out by offering high efficiency and high torque d... More Details
In high-power applications, motor selection demands far more engineering than for small powers. At ratings such as 90 kW and 110 kW the motor is no longer a "shelf product"; it is ... More Details
In heavy-industry applications where high power and high torque density are demanded together, the ability to reject the losses a motor generates is often the factor that limits th... More Details
Crusher (stone crushing) plants present one of the harshest working environments in industry: high impact loads, constant dust, heavy oscillations and long running hours. Under the... More Details
IE3 electric motors rated 2.2, 3 and 4 kW are the heart of the most sought-after small-to-medium power band in industry. Pumps, fans, conveyors, geared drives, compressor units and... More Details
The service factor (SF) is a multiplier showing how far above its rated power an asynchronous motor can operate, briefly or continuously. A motor marked "SF 1.15" on its nameplate ... More Details
Small power electric motors rated 0.55, 0.75 and 1.1 kW are among the most widely used and fastest-moving items in industry. Small conveyors, pump and fan units, packaging machines... More Details
The plug fan (also called plenum or free-running impeller) sits at the heart of modern air handling units (AHUs). With no scroll housing and the impeller coupled directly to the mo... More Details
When you purchase a high-efficiency electric motor, the efficiency value written on the nameplate shows that motor's first-day, brand-new performance. However, a motor runs for ten... More Details
In some applications an electric motor must be stopped very quickly; coasting (leaving the motor to spin down on its own) takes too long and is unacceptable for the process. One of... More Details
Selecting an electric motor for explosive atmospheres requires a far more rigorous engineering decision than an ordinary motor selection, both in terms of safety and regulation. In... More Details
Small-power electric motors are the most widely used and most frequently purchased motor class in industry. Small powers such as 0.75 kW and 1.1 kW appear in pumps, fans, conveyors... More Details
In large-frame cast iron motors, bearing lubrication is one of the decisive factors for motor life. In IEC frames of 160 and above, particularly sizes 180, 200, 225, 250, 280, 315 ... More Details
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