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Archive for the ‘Electric Motors’ Category

The Port of Melbourne hosts a good number of electric service motor facilities that boast of more than 60 years of experience in repairing different types of electrical motors and apparatus. These shops under the West Gate bridge have become trusted partners in the Australian electric motor industry and are actively servicing related sectors such as food and beverage production, paper and plastics manufacturing, automotive manufacturing, marine industry, printing industry, and the refrigeration and air conditioning industries. Businesses here offer end-to-end assistance for any electrical requirement.

Conveniently located in the port area where auxiliary electrical and electronics hubs are also based, the electric service motor facilities there can easily source any brand of motor, new or second hand. Likewise, they can also supply other related equipment such as drives, gearboxes, pumps, thrusters, transformers, and much more. They supply and distribute a variety of high efficiency, high performance, and precision-driven AC and DC electric motors. Some of the brands that can be expediently had are Ajax Pumps, Baldor, BCB, CMG, Davey Pumps, FASCO, Ebara Pumps, E.I.M. Pumps, Flyght Pumps, Lafert, Lowara Pumps, Onga Pumps, Reliance, TECO, Toshiba, Tsurumi Pumps, and WEG. The various electric service motor facilities in the Port of Melbourne have also fostered close relationships with the world?s largest manufacturer of electric motors and drives including ABB Australia.

Moreover, these shops also specialise not only in electric motor rewinds but also in customizing services that complement any electrical requirements and equipment such as control gears, soft starters, generators, gearboxes, fractional DC motors, hydraulic thrusters, and transformers. The high-efficiency motors they make, for instance, range from standard, totally enclosed fan cooled, aluminium, or cast iron motors. These are suitable for the most demanding industrial operations.

The high and low voltage process performance cast iron motors available there are specifically designed for rugged conditions and feature high efficiency functions with low life cycle cost. These motors are ideal for a range of applications that include pump, fan and compressor applications, as well as all other heavy duty applications.

Several electric service motor shops use T-T Electric?s AMP AC Square Motors that can be used in lieu of DC motors. These replacement motors have the same shape and footprint and can replicate the same torque and power of DC motors. The AMP series commonly available there come in 112-355 frame sizes and 17 to 1000 kW power output at 1500 rpm.

The DC motors, in the meantime, boast of innovative design and are ideal for applications that require sustained and reliable performance. Most are purchased from ABB and can achieve high output over wide speed ranges or run smoothly at low speeds and low moment of inertias. Such parts are maintained easily and come in 112 or larger frames.

Port Melbourne?s electric service motor shops also distribute a variety of centrifugal and submersible pumps from reliable manufacturers. Some of centrifugal pumps available include the Lowara FHE-FHS-FHF electric pump series, the Lowara Open Impeller CO-COM electric pump series, and the Goulds BGR series with Centripro automatic pump control. Some submersible pumps distributed there are the GI-GLV series, which come with a motor stator and a sand-proof mechanical seal. These are fully operational at depths of 5 m and at 50 degrees Celsius.

Electrical motor shops in Port Melbourne not just assist you with electric motor repairs and electric motor rewinds, they also provide one-stop solution to all electrical and electronic concerns.

nderstanding Electric Motors

The world of electric motors is quite fascinating. For many making and collecting various types of electric motors is a hobby and for others making the best electric motors to power various devices is a profession. Whatever the approach is, but electric motors offer innumerable possibilities for improvisation. Working with electric motors and understanding them is a rewarding and learning experience. Let us find out more about electric motors in general. Usually, electric motors can be classified into two main types. They are direct current or DC and alternating current or AC motors. DC or AC is very common terms and they refer to how the electrical current is transferred through and from the motor. Both types of motors have different utilities and uses.

DC motors are usually available in two general types. Alike that, AC motors also come in two different types. They can be two phase or three phase AC motors. Although on technical front, the differences in DC and AC motors are sometimes marginal, but some of these differences make one types better than the other for a certain use. In general, the DC electric motors work for conditions controlling the speed is essential. It is due to the factor that DC motors have a steady and constant current. DC motors are also the first and earliest motors used. But these good factors are also accompanied with some limitations; for instance, the DC electric motors are incapable of producing power over long period of time. Most of the electric companies are aware of the limitation of the DC motor and have found that the power was lost as the electric current was transmitted. One of the variant, the Brush DC motors, use certain rings that conduct the current and form the magnetic drive that runs the rotor. On the other hand, the brush-less DC electric motors bring forth a switch to generate the magnetic drive that powers the rotor. Direct current motors commonly used in most of the electric appliances in your home. Now coming back to the AC motors we find that these kinds of motors are commonly used on the basis of their type. For instance, the single phase AC motors are used for general purpose. This type of motors will work efficiently in different conditions. AC motors are effective for systems that are hard to start because they need a lot of power for this purpose. The three phase AC motors, also called polyphase, are commonly found in industrial sector. The AC motors have a high starting power built to transmit lower levels of overall power. As it alternated the power, so it gets its name AC. The amount of power specified by an AC motor is determined by the amount of power needed to operate the system.

Generally, the DC and AC electric motors are easily come across everywhere from the home to the car to industrial uses. The introduction of DC motors is still considered no less than a revolution and when AC motors were available in the market the way motors were looked at changed because of their amazing starting power potential. DC motors and AC motors are different in many ways, but they still both are used to power the world of electric appliances.

A motorized bike is, as the name suggests, a bike with a motor attached to it. The features and the benefits of a motorized bike can be stated as follows:

- The first motorized bike was invented in the year 1868 and was known as the Michaux-Perreaux Steam Velocipede. The name of the bike came from two French inventors known as Pierre Michaux and Louis-Guillaume Perreaux.
- There are both pedals as well as motorized engines placed on the bike. This ensures that the user can use both these facilities and use the bike to its optimum.
- The motor of the bike can be easily charged when the bike is not being used by the user. The motor is quite small which makes it portable to carry around and charge it as and when required.
- Electricity is only one aspect of the source of power supply for the bike’s motor. Other sources include gasoline, petrol and other combustible fluids.
- The motorized bike was in fact the foundation on which the modern motorbikes have emerged.
- A motorized bike does not require any special classification, but owing to the purposes of licensing it is categorized as being a Hybrid Electric Vehicle (HEV) or as a motorcycle or moped.
- HEVs are those types of vehicles that have more than one source of power supply. In the case of motorized bikes, the power supply to run the gadget comes from both – the pedals as well as the motor fixed to the front of the bike.

There are various companies that build motorized bikes. One famous name that stands out is that of the Electric Bicycle Co. based in Australia. The company was set-up in 1995 and in the years following has established itself as the largest manufacturer and distributor of cycles in the nation.

The company’s designs are unique and are created in factories based in two Chinese cities -Nanjing and Tianjin and they are then imported back to be sold to the final customers. This long and lengthy channel of the building process shows the amount of time invested by the company into planning and actualizing its products into a complete client success.

The Electric Bicycle Co. is just one name when it comes to Motorized bikes, but there are many others that are spread all across the world just to provide users with their own unique two-in-one, two wheeler.

Aircraft DC motors

DC electric motors are the inverse of the DC generator. They comprise armature field windings and commutator/brushgear and are similarly self excited. The main elements of importance in relation to motors are the speed and torque characteristics, i.e. the variations of speed and torque with load respectively. Motors are categorised by their field winding configuration (as for generators) and typical examples are series-wound electric motors, shunt-wound electric motors and compound-wound (a combination of series- and shunt-wound). Each of these types of motor offers differing performance characteristics that may be matched to the application for which they are intended.

A specialized form of series motor is the split-field motor where two sets of series windings of opposite polarity are each used in series with the armature but parallel with each other.

Either one set of field windings or the other may receive power at any one time and therefore the motor may run bi-directionally depending upon which winding is energized. When used in conjunction with suitable switches or relays this type of motor is particularly useful for powering loads such as fuel system valves where there may be a requirement to change the position of various valves several times during flight. Limit switches at the end of the actuator travel prevent the motor/actuator from overrunning once the desired position has been reached. Split-field motors are commonly used for linear and rotary position actuators when used in conjunction with the necessary position feedback control. DC motors are most likely to be used for linear and rotary aerospace actuators, fuel valve actuation and starter functions.

Aircraft AC motors

Aircraft AC motors are most commonly of the `induction motor’ type. Induction motors operate upon the principle that a rotating magnetic field is set up by the AC field current supplied to two or more stator windings (usually three-phase). A simple rotor, sometimes called a `squirrel cage’, will rotate under the effects of this rotating magnetic field without the need for brushgear or slip rings; the motor is therefore simple in construction and reliable. The speed of rotation of induction motors depends upon the frequency of the applied voltage and the number of pairs of poles used. The advantage of the induction motor for airborne uses is that there is always a source of constant frequency AC power available and for constant rated applications it offers a very cost-effective solution. Single-phase induction motors also exist, however these require a second set of phase windings to be switched in during the start phase, as single phase windings can merely sustain and not start synchronous running.