Powerful addition introduced

WEG has extend­ed its W60 motor series, which now cov­ers a pow­er range of 500–16,000 kW at fre­quen­cies of 50 or 60 Hz. The three-phase induc­tion motors are designed for the 2,300–13,800 V volt­age range and are avail­able with frame sizes from IEC 450 to IEC 1000 (NEMA 7000 to 1600). Designed for indus­tri­al appli­ca­tions such as com­pres­sors, pumps and fans, the W60 line pro­vides high per­for­mance and reli­a­bil­i­ty even under the most dif­fi­cult oper­at­ing con­di­tions. The W60 is used main­ly in the oil and gas sec­tor, in min­ing, for elec­tri­cal gen­er­a­tion in pow­er plants, in cement pro­duc­tion, as well as in water and waste water applications.

“The W60 motors have been very well received by the mar­ket since being intro­duced in 2014,” says Andreas Schulte Mesum, Direc­tor Euro­pean High Volt­age Solu­tions at WEG in Ger­many. “WEG has designed all the motors in the expand­ed W60 line with the help of the lat­est soft­ware in order to achieve the high­est reli­a­bil­i­ty com­bined with long ser­vice life. The result is a com­pact, robust design which per­mits oper­a­tion even in the tough­est envi­ron­ments. It also boasts very low noise and vibra­tion lev­els whilst also being suit­able for high-speed appli­ca­tions. With the pow­er­ful stan­dard W60 series motors WEG sup­plies com­pre­hen­sive and com­pet­i­tive solu­tions in the medi­um and high volt­age range.”

Robust, light, space-saving and efficient

Due to its opti­mised design, the W60 series motors are not only more com­pact, but also lighter than their pre­de­ces­sors. The com­pact dimen­sions offer a sig­nif­i­cant advan­tage: the W60 motors take up to 50 % less instal­la­tion space than com­pa­ra­ble motors. This makes them one of the most com­pact mod­u­lar motors of this type on the mar­ket. The rugged design with high-qual­i­ty hous­ing and end shield are made of grey cast iron up to the IEC 560 stan­dard. Sizes above IEC 560 fea­ture a steel hous­ing. A spe­cial­ly designed motor shaft pre­vents crit­i­cal flex­ur­al vibra­tions at rat­ed speeds – as well as below the rat­ed speed in the case of two-pole motors – and ensures par­tic­u­lar­ly low vibra­tion lev­els. As a result, the W60 motors are also suit­able for appli­ca­tions with fre­quen­cy con­vert­ers or heavy vibra­tion loads. Thanks to the high-qual­i­ty rotor and sta­tor lam­i­na­tion, low-loss fans and opti­mised heat exchang­ers, the W60 series motors achieve unusu­al­ly high effi­cien­cy and pow­er den­si­ty (out­put pow­er rel­a­tive to the weight). As a result, stan­dard W60 series indus­tri­al motors are among the most effi­cient of their type on the mar­ket. What’s more theW60 motors are engi­neered for con­tin­u­ous use, hor­i­zon­tal mount­ing con­fig­u­ra­tion and are easy to install and com­mis­sion. They are also ide­al for use with medi­um-volt­age fre­quen­cy invert­ers as stan­dard, with no speed restric­tions due to crit­i­cal vibra­tion speeds. The three-phase induc­tion motors are designed for pro­tec­tion class­es IP24W to IP55 and are suit­able for safe or haz­ardous areas (Safe or Haz­ardous: Ex‑n, Ex‑t, Class I Div. 2, Class II Div. 2).

Flexible and modular

The W60 series ben­e­fits users in the form of max­i­mum flex­i­bil­i­ty, as the 2 to 12-pole motors are avail­able in three con­fig­u­ra­tions: open and self-ven­ti­lat­ed (IC01, WP-II), closed with air/air heat exchang­er (IC611, TEAAC) and with air/water heat exchang­er (IC81, TEWAC). The two-pole motors up to size IEC 560 are equipped with ball bear­ings, and are option­al­ly avail­able with sleeve bear­ings. Sleeve bear­ings are avail­able as stan­dard for larg­er two- and four-pole motors, but also for the com­plete W60 series if required. Thanks to the mod­u­lar design, users can cus­tomise the motor to suit their spe­cif­ic appli­ca­tion by means of option­al expan­sion com­po­nents such as dif­fer­en­tial pres­sure switch­es (air-cooled), leak detec­tor (water-cooled), auto­mat­ic lubri­ca­tion sys­tem (anti-fric­tion bear­ings) or rotary encoder.