Showing posts with label scorpion electric motors. Show all posts
Showing posts with label scorpion electric motors. Show all posts

Wednesday, 11 July 2012

Comparing Electric Motor Cars to Hybrid Vehicles

Have you ever considered what the differences might be between pure electric motor powered vehicles and hybrid energy cars? Several different models of hybrid vehicles exist, each with distinct advantages and disadvantages.

Parallel-Hybrid vehicles, for example, utilise both a traditional gasoline engine and another source of energy which provide power to the wheels in an alternating fashion. These combined power source vehicles present less of a pollution threat to the environment and make it easy for drivers to downgrade their reliance on fuel resources.

Series-Hybrid cars, on the other hand, use an electric motors to supply power directly to the wheels, while a gasoline engine is used as a generator for charging an on-board battery. In comparison to these hybrid models, pure battery vehicles have no combustion engine and rely on intermittent plug-ins to recharge the car.

This need for regular rest periods means that many people perceive hybrid vehicles as more convenient than pure electric motor cars. The convenience of an added gas engine comes at an extra cost, however, and for many users it is only needed in extreme circumstances.

Both hybrid and pure energy vehicles are widely considered to be cheaper to own and maintain than conventional gas powered cars. This is because the considerable cost of fuelling the vehicle with petrol is either reduced or cut out completely in both cases.

This cost factor is becoming increasingly important in our current environmental and financial climate, as the cost of powering conventional vehicles is becoming more and more difficult for average income families.

Monday, 2 July 2012

Why consider nameplate ratings while choosing electric motors

Electric motors when selected appropriately can serve you for years. Keeping its operation and maintenance part up-to-date can add up some more additional years to the motor’s life. However, there are certain factors that have to be considered while the selection of motor. One of them is nameplate rating. Most amateur people don’t actually realize the importance of nameplate rating and end up buying model that doesn’t fit into their requirements. 

As a matter of fact, electric motors are sized or rated under standard set of circumstances. In simple terms, there are different categories of motors which are designed for different purposes. While making choice, consider nameplate rating, as it determines the performance, service life, and describes procedures for curbing internal motor heat. 

If you choose electric motors having lower power than what it actually needs, it can create excessive load over the machine. For instance, if a motor with 40 HP (Horse Power) is over loaded under condition like accidentally using it to drive larger load than 40 HP or operating under low rated voltage, the machine will draw extreme amperage in order to supply the demanded power to manage the load. Overload power which when exceeds the nameplate rating the motor will turn hotter than its ability to bear temperature. This will in turn affect the machine in terms of deteriorated winding insulation and eventually shortens its life. This is due to the reason that the motor conductors and insulation are not designed to handle power loads more than the nameplate ratings. 

Nameplate ratings illustrate the operating parameters and convey the information to the users. It tells users that if the model is suitable for their application. Hence, it simplifies the process of selecting motors.

Monday, 9 April 2012

How to Choose Electric Motors for the Mining Industry

Electric motors are essential components of most automated machines in the mining industry, making it necessary to properly select safe and durable models for all mining applications. These machines can be used to power anything from hand held drills to a variety of large scale industrial equipment commonly used on mining sites.

When choosing electric motors for the mining industry, you should put efficiency and safety at the top of your priorities. Whether your company mines for coal, precious metals or ores, you will need high performing industrial machines that are dependable and sturdy. As well as these general requirements you will need to choose an electric motor that can stand up to the specific rigours of the mining industry, such as frequent explosions and shocks.

There are a variety of explosion proof industrial machines that have been developed especially for the mining industry, as well as other hazardous and high risk areas such as chemicals and textiles production. These electric motors are designed to contain and limit explosions within the machine, thereby protecting the surrounding area from the release of hazardous gases and vapours. Explosion proof industrial machines can greatly improve workplace safety in any high risk environment.

Explosion proof industrial machines are available in a wide range of different models to suit major and minor applications. To reach an energy efficient solution you will need to find an explosion proof industrial machine that is the right size and configuration for your application. You should also look for electric motors with long expected life cycles, to minimise the amount of downtime at your mining site.

Sunday, 4 March 2012

Electrical motors and their classifications

You may not see electrical motors everyday like other devices like mobile phones, laptops or light bulbs, but, that doesn’t mean they don’t exist. You can’t see them because they are not like them. These are small devices that are fit inside any electric appliance. The purpose of this device is to turn electrical energy into mechanical energy so as to run the machine. For this, the device uses magnetism and electric currents. 

Unlike, early days the size of electrical motors is reducing day by day, enabling them to get fit into any complicated and small appliance. There are two basic types of electrical motors:

AC motors: These motors are driven by alternate current. You can find two main types of AC motors – Induction motor and Synchronous motor. Induction motor runs slightly slower than the supply frequency. It is named so because the magnetic field on the rotor of this device is created by an induced current. 

DC motors: These motors can rotate exactly at the supply of the frequency or a sub-multiple of the supply frequency as they do not rely on induction. In this device, the magnetic field on the rotor is generated either by current delivered by the slip rings or by a permanent magnet. 

Other motors: There are many other types of motors that include Eddy current motors and AC/DC mechanically commutated machines in which speed depends on voltage and winding connection.
Each of the motor types has its uses and benefits. With the advancements of electrical motors many appliances are now much more advance, powerful and more efficient.