Direct current (DC or "stationary direct current") is in a direction the river of the electrical loading. Direct current is produced by such sources, as batteries, thermocouples, solar cells and kind of commutator electrical machines of the direct current generator to write. Direct current can into a leader as a line flow, but can by semiconductors, isolations or even by a vacuum as in the ion rays of light or electron also be. In the direct current the electrical loadings flow into the same direction and differentiate it from alternating current (alternating current). A designation, which was used in former times for direct current, was galvanic river. Direct current can be achieved by an alternating current supplying material by means of a present circuit arrangement, which is called an electric rectifier, which contains electronic elements (normally) or electromechanical elements (historically) the river only into a direction flow lets. Direct current can be formed in alternating current with an inverter or a motor generator set. The first commercial achievement transmission (developed of Thomas Edison in the late 19.jahrhundert) used direct current. Because of the advantage of the direct current of the alternating current surplus in converting and in the transmission, achievement distribution is today nearly all alternating current. For applications, which direct current, as third rail systems require energy, alternating current distributed on a branch, which uses an electric rectifier, in order to convert the energy into direct current. See to war of the rivers. Direct current is used, in order to load batteries and in nearly all electronic systems as the Spg.Versorgungsteil. Very large quantities of the direct current energy are used in the production of aluminum and other electro-chemical processes. Direct current is particularly used for something course drive, within the urban ranges. High voltage direct current will, in order to connect large quantities of energy from the remote production places of assembly to transferred used or alternating current energy of raster fields. Within electro-technology is designation DC a synonym for "constant". E.G. the tension over DC tension source is constant, like the river by DC power source. DC solution of an electrical electric circuit is the solution, in which all tensions and rivers are constant. It can be shown that each tension or present wave shape can be divided into a sum of DC of a component and the time-different component. DC a component is defined, in order to be the average value of the tension or the river over all time. The average value of the time-different component is zero. DC will be propelled in many applications of weak currents, particularly in those these by batteries, which can produce only DC, or in the solar power systems found general, since solar cells can produce only DC. Most applications of automobiles use DC, although the alternating current producer alternating current a device is, which uses an electric rectifier, in order to produce DC. Most electronic electric circuits require a direct current supply. Applications, the fuel cells use (mixing hydrogen and oxygen as well as a catalyst to produce for from of electricity to and as side effects too waessern) produce also only DC. Most telephones attach a component of the tension between the two lines to a twisted pair of the lines and separate internally the AC construction unit of the tension between the two lines (the audio signal) of DC (uses to propel around the telephone).
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment