Plant Equipment and Hire September 2017 | Page 35

Paul Generators Michael Faraday's electrical generator. Drawing of Faraday disk, the first electromagnetic generator, invented by British scientist Michael Faraday in 1831. Rudolf Diesel, the inventor of the diesel engine. The first generator built for public use was the dynamo, invented by Frenchman Hippolyte Pixii in 1833, based on Faraday’s concepts of electromagnetic currents. The dynamo cranked electricity by hand, creating alternating currents by using a magnet with revolving coils. Because many early uses of electricity required direct current, Pixii included a commutator to convert the alternating currents into direct currents. The dynamo was the first electrical generator capable of delivering power for industry. The modern dynamo was invented independently by Sir Charles Wheatstone, Werner von Siemens, and Samuel Alfred Varley in the late 1860s and used self-powering electromagnetic field coils to create the stator field instead of permanent magnets. A genset, or engine generator, is a combination electric motor-generator used where a continuous flow of electricity is needed. Generators have had a huge impact on the construction industry in particular, allowing work on projects to continue at night and with little worry regarding electricity supply. Engine-generators An engine-generator — also known as an engine-generator set, generating set, or gen- set — combines an electric generator with an engine to form a single piece of equipment. While these can run on a variety of fuels, including petrol, diesel, natural gas, propane, water, and hydrogen, most larger ones make use of diesel, natural gas, or propane. In the industrial context, these are often used on remote sites where power is unavailable or inconsistent, or for standy power in the case of power outages. The diesel generator as we know it today exists thanks to the combined efforts of Faraday and German inventor and mechanical engineer Rudolf Diesel. In 1885, Diesel set up his first shop- laboratory in Paris, where he would begin the 13-year task of creating his engine. Diesel