what are electrical transmisson systems?
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They consist primarily of enormous transformers which 'step' up the voltage to an excess of 100,000 volts (sometimes to over 1,000,000 volts).  Doing this results in a greatly reduced current required to transmit the same amount of power over a distance of wire, allowing for thinner wires to be used without risk of burnout.\n\nAt the receiving end, 'step-down' transformers reduce the voltage down to the 1,000 volt range for distribution throughout a community.  This is eventually stepped down to 230 volts for most residential areas.
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ELECTRICITY FLOWS IN TWO WAYS, AC & DC.\n\nAC flows alternatively (back and forth between + and -)\n\nDC flows directly (across + and -)
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EMS= environment management system
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through transformers and cables
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The radio uses a transducer called an aerial to convert the radiowaves to current in a conductor, after low noise amplification and filtering to reject most of the other radiowaves that the transducer has converted, the short-term changes in the current are interpreted as a wanted modulation of the radiowave.
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http://www.epa.gov/ttn/emc/
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bus n. A set of hardware lines (conductors) used for data transfer among the components of a computer system. A bus is essentially a shared highway that connects different parts of the system—including the processor, disk-drive controller, memory, and input/output ports—and enables them to transfer information. The bus consists of specialized groups of lines that carry different types of information. One group of lines carries data; another carries memory addresses (locations) where data items are to be found; yet another carries control signals. Buses are characterized by the number of bits they can transfer at a single time, equivalent to the number of wires within the bus. A computer with a 32-bit address bus and a 16-bit data bus, for example, can transfer 16 bits of data at a time from any of 232 memory locations. Most PCs contain one or more expansion slots into which additional boards can be plugged to connect them to the bus.
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The best I can do is point you to an article on wikipedia which seems quite informative:\n\nhttp://en.wikipedia.org/wiki/Transversalis
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With control engineering you would be interested in the other aspects of electrical engineering, like power systems and power electronics. this is because those are the things that you apply the control to. \n  An electrical control engineer is the one responsible for the functionality of the whole system including the motors/generators, the sensors and the switches ( in a simple system). Normaly a control engineer works in something called control pannel, from where he sends and recieves data and assures that the process is done correctly. He also fixes the errors and reduces them to the least system error possible. \n\n Telecommunication is envolved in the work of control regarding the recieving and sending of data.\n\n  I'm a control engineer and was in a point of my life wondering if I want control or telecommunication till I discovered out that a control engineer can always make a masters in telecommunication and be good in both, but it doesn't work the other way since you need a semi perfect knowledge of electrical engineering.... good luck with your choice...
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search for a trans receiver system operating in 2.4 GHZ  ism band ,,,, no licences required for this band for a transmitter of power less than 1 watt
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I would look into the system used by EZpass on highways and certain medications.RFID tags. They are usually from two to four square inches in size, and contain a silicon chip that holds a unique string of numbers identifying the item to which it is attached. A separate RFID "reader" receives the information contained in the tag through the tag's antenna. Unlike a bar code, the signal does not have to be read directly by a scanner; RFID signals need only to be in the vicinity of an RFID reader.
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Electric power transmission is one process in the delivery of electricity to consumers. The term refers to the bulk transfer of electrical power from place to place. Typically, power transmission is between the power plant and a substation near a populated area. This is distinct from electricity distribution, which is concerned with the delivery from the substation to the consumers. Due to the large amount of power involved, transmission normally takes place at high voltage (110 kV or above). Electricity is usually sent over long distance through overhead power transmission lines (such as those in the photo on the right). Underground power transmission is used only in densely populated areas (such as large cities) because of the high capacitive and resistive losses incurred.\n\nA power transmission system is sometimes referred to colloquially as a "grid". However, for reasons of economy, the network is rarely a grid (a fully connected network) in the mathematical sense. Redundant paths and lines are provided so that power can be routed from any power plant to any load center, through a variety of routes, based on the economics of the transmission path and the cost of power. Much analysis is done by transmission companies to determine the maximum reliable capacity of each line, which, due to system stability considerations, may be less than the physical limit of the line. Deregulation of electricity companies in many countries has led to renewed interest in reliable economic design of transmission networks. The separation of transmission and generation functions is one of the factors that contributed to the 2003 North America blackout.
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Universal Serial Bus.\n\nUSB is a standard interface that lets you connect devices such as printers, digital cameras, keyboards, etc to a computer. \n\nThere are three versions: 1.0, 1.1, and 2.0. Version 2.0 has the fastest transfer speed 480 Mbits/sec. 1.1 is the next fastest at 12Mbits/sec, while 1.0 only supports 1.5Mbits/sec.
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Ground or earth in a mains (AC power) electrical wiring system is a conductor that exists primarily to help protect against faults and which in normal operation does not carry current.\n\nThe term "ground" is used in Canada and the U.S.; the term "earth" is used in most of the rest of the English-speaking world. They are used synonymously here.\n\nNeutral is a circuit conductor that carries current in normal operation, and which is connected to earth.\n\n    * In a polyphase or three-wire AC system, the neutral conductor is intended to have similar voltages to each of the other circuit conductors, and similar phase spacing. By this definition, a circuit must have at least three wires for one to serve as a neutral.\n    * In the electrical trade, the conductor of a 2-wire circuit that is connected to the supply neutral point is also referred to as the "neutral". This is formally described in the US and Canadian electrical codes as the "identified" circuit conductor. If the entire system is only single phase then the current carrying conductor that is tied to earth is still a neutral by this definition.\n\nThe NEC and Canadian electrical code only define neutral as the first of these. In North American use, the second definition is used in less formal language but not in official specifications. In the UK the IEE definition is a conductor connected to the supply system neutral point, which includes both these uses.
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for where?\n\nhttp://en.wikipedia.org/wiki/Electrician
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Near or on the transom there is an electric pump. It might be filled there or in a reservoir close to the pump.
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TDM\n(Time Division Multiplexing) A technology that transmits multiple signals simultaneously over a single transmission path. Each lower-speed signal is time sliced into one high-speed transmission. For example, three incoming 1,000 bps signals (A, B and C) can be interleaved into one 3,000 bps signal (AABBCCAABBCCAABBCC). The receiving end divides the single stream back into its original signals.\n\nTDM enabled the telephone companies to migrate from analog to digital on all their long distance trunks. The technology is used in channel banks, which convert 24 analog voice conversations into one digital T1 line. Contrast with FDM. See TDMA, circuit switching, channel bank and T1.\n\n\nhttp://www.answers.com/topic/time-division-multiplexing?method=22