Posted at 15-Mar-2019

Driving Fast Payback with Synchronous Motors

Paul Skade
By Nigel Jones
Sales Manager, Power Transmission

I am a time served apprentice and qualified engineer from the aerospace industry and now have over 28 years experience within the Power Transmission industry, all...

Read full bio

There are a range of benefits that explain the use of synchronous motors across a diverse range of industries – for example mining & quarrying, steel, pulp & paper, sewage and chemicals to name but a few.

weg synchronous motor

 

So why do these type of motors offer such significant and rapid savings? Well, it’s quite simple… it’s thanks to their ability to reduce electrical energy costs and improve efficiency by correcting the power factor on the motor power supply. The high torques and constant speed under load variation, result in low operating and maintenance costs.

Far less stress, far more efficiency

Due to their higher levels of efficiency, reduced size and higher output ratings, synchronous motors can effortlessly replace DC motors in high-performance applications. In a number of instances, a motor with a lower torque value can be applied, bringing a positive reduction in motor starting current together with less mechanical stresses from the motor windings.

The design of synchronous motors is far more complex than that of an induction motor, meaning the cost comparisons between the two are not entirely straightforward. The simpler design of the induction motor makes them less expensive for a given power level – at outputs of up to 10 megawatts – but anything above this figure, the higher efficiency (a result of its superiority at converting electrical energy into mechanical power) of the synchronous motors deliver lower operating costs.

The safe choice

WEG designs and manufactures synchronous motors in sizes up to 20MW for general industrial applications, as well as offering versions for hazardous (flammable) atmospheres both on- and off-shore.

These hazardous area motors are supplied in a range of protection levels – Ex-n (non-sparking) and Ex-p (pressurised) - to meet national and international standards.

In addition, WEG synchronous motors are tested and approved by worldwide certifying institutions including (but not exclusive to) API, NEMA, IEC, CSA, BVQI, NBR, ABS and DN V.

So, if you’re looking for high efficiency, speed accuracy and fast payback, a WEG synchronous motor is the obvious choice – in more ways than one.

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