An alternator is
machine that generates alternation electricity. It is a type of
generator by which mechanical energy is converted into alternating
electrical energy. Alternator
is also called as synchronous generator. By applications, the
alternators are classified as automotive type, diesel electric
locomotive type, marine type, brush less type and radio alternators.
The automotive alternators experimentation expanded in the year 1949,
based on their military applications during World War II. The power
for modern vehicle electrical system is produced from an alternator
when the car engine is in running state. In automobiles, alternators
are also used for charging the battery. Therefore, the alternator is
much simpler, lighter, cheaper and rougher than other DC generators
used. Although motor vehicles electrical system generally needs
direct current but an alternator with diode rectifier is better
choice than a DC generator as there is no complicated commutation in
it. Commutator is the moving part of a rotary electrical switch in
electric motors as well as generators that reverses the direction of
current between the rotor and external circuit in a period of time.
Alternator is also
used in diesel electric locomotives. The alternating current produced
is converted to direct current with the help of silicon diode
rectifiers to run the traction motors which are used to drive the
locomotive wheels. The alternator used in marine is typically
designed with suitable adaptations to saline water environment. The
brush type alternators are used in power electric generation plant as
a main power source. The radio alternators are used for the
transmission of low band radio frequency. On the basis of design,
alternators are categorized into two major types which include
salient pole type and smooth cylindrical type. The salient pole type
alternators are the medium or low speed alternators having large
diameters and small axial lengths. They look like big wheels and are
used mainly in hydro power plant. The smooth cylindrical type
alternators are used for steam turbines having a high speed rotor.
Providing low costs
offerings for alternators sourced from overseas would be a good
opportunity for alternator market to significantly grow in the near
future. The shift towards salient pole alternators from cylindrical
pole alternators leads to increasing complexity, along with time,
cost, as well as skill of remanufacturing, which makes these new
products a better alternative. Therefore, in order to remain stiff in
an increasingly competitive market, manufacturers should align their
product line as well as distribution strategies with the market
needs, while also considering geographic expansion.
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The market for
alternator is highly competitive and includes various key players
such as Robert Bosch GmbH, Denso Corporation, Hitachi Automotive
Systems, Ltd., Valeo SA, Mitsuba Corporation, Mitsubishi Electric
Corporation, Hella Kgaa Hueck & Co., Lucas Electrical, Controlled
Power Technologies Ltd., Asimco Technologies, Letrika Group, Lucas
Electrical, Prestolite Electric, Remy International, Wonder Auto
Technology, and Zhejiang Dehong Automotive Electronic &
Electrical Systems Co., Ltd.
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