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The ology ending is a combination of the letter o plus logy in which the letter o is used as an interconsonantal letter which, for phonological reasons, precedes the morpheme suffix logy. [1] Logy is a suffix in the English language, used with words originally adapted from Ancient Greek ending in -λογία ( -logia ).
A generator can also be driven by human muscle power (for instance, in field radio station equipment). Protesters at Occupy Wall Street using bicycles connected to a motor and one-way diode to charge batteries for their electronics [22] Human powered electric generators are commercially available, and have been the project of some DIY ...
In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others. They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to electricity.
The rotor of a turbo generator is a non-salient pole type usually with two poles. [5] The normal speed of a turbo generator is 1500 or 3000 rpm with four or two poles at 50 Hz (1800 or 3600 rpm with four or two poles at 60 Hz). The rotating parts of a turbo generator are subjected to high mechanical stresses because of the high operation speed.
Where a diesel-electric locomotive is equipped for dynamic braking, the braking resistor may be used as a load bank for testing the engine-generator set. On electric railways , old electric locomotives no longer required for regular service sometimes get converted into mobile load banks for testing the overhead line equipment and power ...
Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.
As an example, consider the use of a 10 hp, 1760 r/min, 440 V, three-phase induction motor (a.k.a. induction electrical machine in an asynchronous generator regime) as asynchronous generator. The full-load current of the motor is 10 A and the full-load power factor is 0.8.
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]