What Australian Standards Apply to Electric Motors?

When you are choosing an electric motor, you might find it helpful to use Australian consumer and industrial standards as a guide to the safety, efficiency and operational requirements required in your chosen machine. The standards applying to machinery of this type can differ greatly from country to country, making it important to check that all imported models you consider are safe and reliable for use with Australian machinery.

There are a range of different Australian standards, relating to different types of electric machinery, such as AC and DC, induction and three phase models. One standard, AS/NZS 1359.5, relates to the energy efficiency of three phase electric motors and states a minimum level of efficiency for all such motors in Australia. The standard states the general requirements for energy efficient three phase motors and outlines reliable tests for determining a motor's efficiency.

Global standards often apply to machinery bought and sold in Australia. These standards are set down by the International Electrotechnical Commission (IEC) and can relate to a wide range of features concerning electric motor performance, operation and construction. Standards can also apply to the labelling and marketing of industrial products, especially when manufacturers claim their products to be energy efficient or low on noise.

Standards can also give a good guide on what machines can be used for a specific purpose, whether it is high precision robotics or domestic appliances. By searching for Australian standards relating to your industry or particular need you can make a better decision when choosing an electric machine. 

What are DC Electric Motor Controllers?

DC motor controllers are used in brush-less machines to replace the brush and commutator configuration of other models. The controller is an electronic device that performs the task of switching the phase to the windings in order to keep the motor turning. Controllers are therefore crucial parts in all brush-less machines. Controllers provide various benefits for improving efficiency and performance when used in the right machine.

The controller is responsible for directing the rotation speed of the machine and allows the operator to precisely choose a speed for multiple syndicated machines at once. Controllers utilise an electronic circuit to allow sophisticated control of different machines, with analogue and digital modes to provide unidirectional or bidirectional movement.

Controllers are commonly used in software development and computer parts. They are useful for enabling precise and intricate movement, at powerful speeds and in minuscule applications. Controllers are also used in areas such as the automotive industry, industrial production and domestic and office equipment. DC electric motor controllers are also popular amongst enthusiastic electrics hobbyists as they provide a professional level of control.

In comparison with brushed machines, models fitted with controllers offer higher efficiency, greater durability and lower ongoing cost. DC electric motor controllers are, however, more complex and expensive because of the additional electronic circuitry. To enhance the efficiency of your machines, it is possible to select a controller to suit the simplicity or complexity of your particular application. For example, mechanically powered toys and moving models only require the simplest controllers, made using straightforward circuitry.