A crusher motor works in dusty, shock-loaded heavy-duty conditions; and if it is also expected to produce continuous high torque at low speed with a VFD, the motor's own shaft-moun... More Details
200 kW and 250 kW are two powerful motor classes at the heart of compressors, large pumps, fans, mills and process lines in industry. These powers now fall in the range where the I... More Details
The question "soft starter or VFD" on an asynchronous motor is one of the most confused and most often wrongly decided topics in the field. Both devices give the motor a ... More Details
An 800 kW class electric motor is not an ordinary industrial motor; at this power every detail turns into a project line item. The starting method, the cooling type, the frame size... More Details
In a continuously running pump or fan motor, one variable decides bearing life above all others: getting the right amount of the right grease to the bearing at the right interval. ... More Details
When buying a high-efficiency motor it is natural to focus on the efficiency class on the nameplate (IE3, IE4, IE5); however another critical property that determines whether the m... More Details
When an electric motor is mounted vertically, with the shaft pointing down (V1 mounting) and in the open air, the most vulnerable point of the motor becomes the fan cowl sitting at... More Details
The IE5 synchronous reluctance motor sits at the summit of the ultra premium efficiency class; but the invisible hero that preserves this efficiency for years is often overlooked: ... More Details
When you bring an IE4 super premium efficient motor into a plant, there is a detail as critical as efficiency yet often overlooked: how you connect the cable to the terminal box. W... More Details
For a cast iron framed motor working outdoors, in front of a cold store, or in a high-humidity plant, the quietest enemy is not the rain outside; it is the water that condenses ins... More Details
In large-capacity crushers and mills, the drive power required can reach levels that push the practical limits of a single motor. In such cases there are two common approaches: eit... More Details
As IE3 efficient motors move up to larger powers, the high starting current that appears during direct-on-line (DOL) starting becomes a problem. While the classic methods of reduci... More Details
The vast majority of asynchronous motors run with a squirrel-cage (short-circuited bar) rotor; this rotor, in which aluminium or copper bars are joined by short-circuit rings, is a... More Details
A 710 kW class electric motor sits far above the powers most industrial plants are used to, in the ultra-large-power region. A motor of this size is no longer ordered like a standa... More Details
In pump, fan and blower drives a large share of the noise a motor radiates comes from a single, often overlooked component: the cooling fan behind the motor and the fan cowl that c... More Details
In small workshops, agricultural irrigation points and many domestic applications where a three-phase grid is not available, the power source is single phase. The single-phase moto... More Details
Electric motors run not only in the horizontal (foot-mounted, IM B3) position; they can work in many different positions such as shaft up, shaft down or wall-mounted. But the mount... More Details
IE5 synchronous reluctance motors always run with a frequency drive (VFD), because the synchronous reluctance rotor cannot start directly from the grid. The voltage at the drive ou... More Details
In high-power IE4 motors, the inrush current drawn during direct-on-line (DOL) starting can reach 6 to 8 times the rated current. This high momentary current causes voltage dips on... More Details
In heavy belt-and-pulley drives, the radial load reaching the drive end (DE) of the shaft can push a standard deep-groove ball bearing beyond its rating. In large fans, crushers, r... More Details
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