As a professional manufacturer and supplier of diesel generators, Powers City System Co.,Ltd. established in 2003 and located in Shanghai, China. With full experience of manufacture and service, we always supplies the product with high quality and competitive price in the international market. The power range covers from 6kW/8kVA to 2,000kW/2,500kVA. We has steady and long-term cooperation with world leading companies, such as famous engine manufacturer Cummins, Deutz, Volvo etc., together with the world famous generator Stanford, Marathon.
For example: Cummins engine 6BTA5.9-G2 100KW/125KVA $9000KTA19-G3 400KW/500KVA $42000
Whatever you are personal or company(even without import license), pls feel free to contact us if any questions.
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2009年5月6日星期三
Diesel Generators Explained
A diesel generator is composed of a diesel engine and an alternator or an electrical
generator, which converts the power created by the engine (expressed in RPM, revolutions
per minute) into the required voltage for homes, industry and remote work sites. The need
for power for homes and sites, which are not connected, to a power grid is a growing need
throughout the world. Remote areas of Central and South America are no longer too poor to
afford electrical power but not at the stage to built vast hydroelectric projects or large
power grids.
They can afford to build local village electrical power plants, which can meet the modern
needs of the people until the modern power grid can reach out to them. There are places in
the United States that are developing ahead of the ability of the local power company to
expand; other places throughout the world are at the edge of civilization. All of these
require power for business, commerce, medical treatment facilities and communication. The
price of the modern diesel generator, the new technology incorporated into these units and
their availability throughout the world make them an immediate solution.
Homes and ranches, villages and towns and remote sites should create a power needs list
that includes every appliance in the home, business, school and public facility in order to
determine the wattage needed. After this the home or ranch owner, city engineer or site
foreman can select the proper sized diesel generator. Every diesel generator is rated at
how many kilowatts of power it produces. If the home or ranch requires 22 kW to 25 kW then
the sized generator should be at least a 30kW. A brigade sized army unit twenty years ago
used a diesel generator(s) rated at 90 kW but its' needs were lighting and mess hall
refrigeration. Today it could be quite a bit more considering the new technology.
When you decide to provide power through diesel generators then you should consider whether
you need a backup. The power of the generator is rated at 50% engine speed. The 30 kW
diesel generator actually operates safely at 25 kW at 1800 rpm for prolonged periods of
time. It would be safer if the home or ranch had two generators scheduled to operate in an
alternating schedule of 12 hours each. This would ensure that the proper maintenance and
care could be given the generators while providing continuous power. Other considerations
in selecting a power generator involve selecting one that is a four-cycle, water-cooled
industrial diesel generator.
A water-cooled generator operates more quietly than an air-cooled and it lasts longer.
There are two electrical systems involved with a diesel generator, the DC (direct current)
and the AC (alternating current) systems. The recommended DC system should have a starter
motor with a battery-charging alternator with a solid-state voltage regulator. It should
have an engine pre-heat electric switch and start/stop switch.
It should have an emergency engine shutdown system to protect the engine in case of oil
pressure loss, excessive generator speed, over cranking and engine high water temperature.
Finally, it should have DC electric system breakers. Make sure that the AC system is a
four-pole revolving field and is has an AVR (automatic voltage regulator). These generators
will provide power that is within -+2% as compared to utility company variation, which is
-+5%.
Find out more information about power generators, visit Powerscity diesel generators.
generator, which converts the power created by the engine (expressed in RPM, revolutions
per minute) into the required voltage for homes, industry and remote work sites. The need
for power for homes and sites, which are not connected, to a power grid is a growing need
throughout the world. Remote areas of Central and South America are no longer too poor to
afford electrical power but not at the stage to built vast hydroelectric projects or large
power grids.
They can afford to build local village electrical power plants, which can meet the modern
needs of the people until the modern power grid can reach out to them. There are places in
the United States that are developing ahead of the ability of the local power company to
expand; other places throughout the world are at the edge of civilization. All of these
require power for business, commerce, medical treatment facilities and communication. The
price of the modern diesel generator, the new technology incorporated into these units and
their availability throughout the world make them an immediate solution.
Homes and ranches, villages and towns and remote sites should create a power needs list
that includes every appliance in the home, business, school and public facility in order to
determine the wattage needed. After this the home or ranch owner, city engineer or site
foreman can select the proper sized diesel generator. Every diesel generator is rated at
how many kilowatts of power it produces. If the home or ranch requires 22 kW to 25 kW then
the sized generator should be at least a 30kW. A brigade sized army unit twenty years ago
used a diesel generator(s) rated at 90 kW but its' needs were lighting and mess hall
refrigeration. Today it could be quite a bit more considering the new technology.
When you decide to provide power through diesel generators then you should consider whether
you need a backup. The power of the generator is rated at 50% engine speed. The 30 kW
diesel generator actually operates safely at 25 kW at 1800 rpm for prolonged periods of
time. It would be safer if the home or ranch had two generators scheduled to operate in an
alternating schedule of 12 hours each. This would ensure that the proper maintenance and
care could be given the generators while providing continuous power. Other considerations
in selecting a power generator involve selecting one that is a four-cycle, water-cooled
industrial diesel generator.
A water-cooled generator operates more quietly than an air-cooled and it lasts longer.
There are two electrical systems involved with a diesel generator, the DC (direct current)
and the AC (alternating current) systems. The recommended DC system should have a starter
motor with a battery-charging alternator with a solid-state voltage regulator. It should
have an engine pre-heat electric switch and start/stop switch.
It should have an emergency engine shutdown system to protect the engine in case of oil
pressure loss, excessive generator speed, over cranking and engine high water temperature.
Finally, it should have DC electric system breakers. Make sure that the AC system is a
four-pole revolving field and is has an AVR (automatic voltage regulator). These generators
will provide power that is within -+2% as compared to utility company variation, which is
-+5%.
Find out more information about power generators, visit Powerscity diesel generators.
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