Docstoc

The Types of Generators

Document Sample
The Types of Generators Powered By Docstoc
					                               The Types of Generators



                                                      Generators are used for the
                                                      generation of electricity and they
                                                      ensure that most of the essential
                                                      appliances can be run whenever there
                                                      is a power outage. Generators of
                                                      different wattage capacities can be
                                                      used according to the needs of the
                                                      individual. The choice of buying the
                                                      right type of generator depends upon
                                                      a number of factors like the wattage
                                                      capacity, voltage ratings, fuel type,
                                                      fuel     efficiency,   noise    level,
                                                      portability and price – a prudent
                                                      choice can only be made if you knew
                                                      what          to      look        for.

                                                    Stand By – Standby generators
provide backup power in homes and offices and are permanently installed outside the
house or office building. They are plugged into the electric circuits or home wiring. – The
unit turns itself on and off automatically. They can automatically detect disruption in the
usual electric supply and begin supplying power within a few seconds. – Propane and
natural gas offer a safe, long-term fuel supply and are more environment friendly than
gasoline or diesel fuels. – Like any motor, a generator motor creates quite a bit of heat
and needs a cooling system to prevent overheating. Standby generators can be either air-
cooled or liquid-cooled. The major difference is that air-cooled systems are louder and
not quite as effective. Liquid cooled systems are quieter and more dependable – and also
more expensive to purchase and to maintain.


Portable – Portable generators are usually used in places where there is no power supply
such as construction sites, camps, etc. These generators are sufficient to run appliances
like televisions, refrigerators, sump pumps and furnaces. – Portable systems are wheeled
units that require to roll the generator outside, start it up, and hook it up to a power inlet
box Portable generators supply electricity to selected appliances through extension cords.
– They are fueled by gasoline, which can be difficult to store and transport during a
blackout. Carbon monoxide is always a concern in the safe use of portable generators. –
They are designed to be used for short periods of time only a few hours at a stretch. As a
result, they tend to be much smaller and less expensive.


A related aspect of generator motors is the speed at which they run, as measured in
RPMs. Generators made for the US market operate at one of two speeds: 1800 RPM or
3600 RPM. 1800 RPM motors will last longer and run quieter; 3600 RPM motors are
smaller and lighter.

				
DOCUMENT INFO
Description: about tecnology and other