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There are many commercial softwares to do AC Loadflow Analysis, AC Short Circuit Calculation, Transient Stability Simulation or Distribution System Analysis. Doing them manually may be a nightmare to an Electrical Engineer notwithstanding the probability of errors that could be contributed into the results due to human error. Likewise, commercial softwares are too expensive that only the big, well established companies could afford. Thanks to the open-source community, InterPSS, a java based power simulation software is here to help the Elelctrical Engineers.
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A new project in a new environment. Just like the old times, adjustments takes a while. I have been used to this scenario though. I have been to too many companies, working with too many people from different countries.
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Standards ensure that products are suitable for use on the purpose they are intended. Users are now increasing awareness of the value of purchasing a product certified to national and international standards that ensures the quality of manufacture, and that the product does not have design faults which are likely to make it fail prematurely in normal service leading to financial saving not only of the cost of early replacement but also of the cost of 'down-time'.
A standard is defined as a technical specification or other document available to the public, drawn up with the cooperation and consensus or general approval of all interests affected by it, based on the consolidated results of science, technology and experience, aimed at the promotion of optimum community benefits and approved by a body recognised on the national, regional, or international level.
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Short circuit calculation softwares are very expensive and very difficult to use. Seldom do you find a software in this category which is very user friendly. In my searching, I found a free short circuit calculation software at the Mine Safety and Health Administration website. This short circuit calculation software is based on North American standards.
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The evolution of electrical engineering can be attributed, in part, to the works and discoveries of these scientists, mathematicians, and physicists.
- William Gilbert (1540-1603),
English physician, founder of magnetic science, published De Magnete, a treatise on magnetism, in 1600. - Charles A. Coulomb (1736-1806),
French engineer and physicist, published the laws of electrostatics in seven memoirs to the French Academy of Science between 1785 and 1791. His name is associated with the unit of charge. - James Watt (1736-1819),
English inventor, developed the steam engine. His name is used to represent the unit of power. - Alessandro Volta (1745-1827),
Italian physicist, discovered the electric pile. The unit of electric potential and the alternate name of this quantity (voltage) are named after him. - Hans Christian Oersted (1777-1851),
Danish physicist, discovered the connection between electricity and magnetism in 1820. The unit of magnetic field strength is named after him. - Andre Marie Ampere (1775-1836),
French mathematician, chemist, and physicist, experimentally quantified the relationship between electric current and the magnetic field. His works were summarized in a treatise published in 1827. The unit of electric current is named after him. - Georg Simon Ohm (1789-1854),
German mathematician, investigated the relationship between voltage and current and quantified the phenomenon of resistance. His first results were published in 1827. His name is used to represent the unit of resistance. - Michael Faraday (1791-1867),
English experimenter, demonstrated electromagnetic induction in 1831. His electrical transformer and electromagnetic generator marked the beginning of the age of electric power. His name is associated with the unit of capacitance. - Joseph Henry (1797-1878),
American physicist, discovered self-induction around 1831, and his name has been designated to represent the unit of inductance. He had also recognized the essential structure of the telegraph, which was later perfected by Samuel F. B. Morse. - Carl Friedrich Gauss (1777-1855),
German mathematician, and Wilhelm Eduard Weber (1804-1891), German physicist, published a 10 Chapter 1 Introduction to Electrical Engineering treatise in 1833 describing the measurement of the earthÂ’s magnetic field. The gauss is a unit of magnetic field strength, while the weber is a unit of magnetic flux. - James Clerk Maxwell (1831-1879),
Scottish physicist, discovered the electromagnetic theory of light and the laws of electrodynamics. The modern theory of electromagnetics is entirely founded upon MaxwellÂ’s equations. - ErnstWerner Siemens (1816-1892) and Wilhelm Siemens (1823-1883),
German inventors and engineers, contributed to the invention and development of electric machines, as well as to perfecting electrical science. The modern unit of conductance is named after them. - Heinrich Rudolph Hertz (1857-1894),
German scientist and experimenter, discovered the nature of electromagnetic waves and published his findings in 1888. His name is associated with the unit of frequency. - Nikola Tesla (1856-1943),
Croatian inventor, emigrated to the United States in 1884. He invented polyphase electric power systems and the induction motor and pioneered modern AC electric power systems. His name is used to represent the unit of magnetic flux density.