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Most home standby generators can run anywhere from 10,000 to 30,000 hours. If you were to use it for 100 hours per year, that translates to 10 to 30 years. Types of Generators
Standby generators. A standby generator is a back-up electrical system that operates automatically. [1] Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The standby generator begins supplying power to the circuits. [2]
The mid-size stationary engine–generator pictured here is a 100 kVA set which produces 415 V at around 110 A. It is powered by a 6.7-liter turbocharged Perkins Phaser 1000 Series engine, and consumes approximately 27 liters of fuel an hour, on a 400-liter tank.
For example, a commercially available computer in Wake-on-LAN standby typically consumed 2 to 8 watts of standby power as of 2011, but it was possible to design much more efficient circuitry: a purpose-designed microcontroller can reduce total system power to under 0.5 watts, with the microcontroller itself contributing 42 mW. [35]
A specific model of a generator operated as a standby generator may only need to operate for a few hours per year, but the same model operated as a prime power generator must operate continuously. When running, the standby generator may be operated with a specified - e.g. 10% overload that can be tolerated for the expected short running time.
Newer rotary units use technologies such as magnetic bearings and air-evacuated enclosures to increase standby efficiency and reduce maintenance to very low levels. Typically, the high-mass flywheel is used in conjunction with a motor-generator system. These units can be configured as: A motor driving a mechanically connected generator, [7]
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