These generating stations are not necessarily situated at the load center. During construction of generating station number of factors are to be considered from the economic point of view.
Checkout Power Line Carrier In spite of the growing use of digital communication systems - especially those employing optical fibre links for which ABB produces a comprehensive line of equipment - PLC is still often the most cost effective, and reliable, solution to cover the operational needs of a power system.
This applies particularly when only low volumes of data have to be transmitted over long distances. An existing PLC network represents a considerable investment made over many years, and for reasons of cost and system operation it is seldom possible, or necessary, to replace it with a digital system in a short space of time.
An existing PLC network can often be usefully expanded rather than replaced, and in such cases frequency allocation must be carefully planned to mitigate any channel shortage.
In other instances a PLC channel is used as a back-up to fiber-based digital channels, providing a dependable communication link in the most demanding of circumstances. With decades of successful involvement in the PLC and transfer tripping field, ABB continues to prove its high technical standards and competence by remaining at the forefront of PLC development.
ABB provides the latest technologies to PLC systems, with five-step variable bandwidth and flexible partitioning of digital and analog data, backed with a formidable capability in systems and applications engineering.
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In the present age of Information Technology, the present focus is both on creation as well as dispersion of information. In order to be able to reach the end users for the provision of information.
For large power system power line carrier communication is used for data transmission as well as protection of transmission lines. Carrier current has a frequency range of 30 to kHz in USA and 80 to kHz in UK. Distance protection relay in relay panel at one end of the transmission line gets.
Power-line communication (PLC) carries data on a conductor that is also used simultaneously for AC electric power transmission or electric power distribution to consumers. It is also known as power-line carrier, power-line digital subscriber line (PDSL), mains communication, power-line telecommunications, or power-line networking (PLN)..
A wide range of power-line communication . UART, LIN, CAN over DC power line communication transceivers save wires in automotive, aerospace, lighting and industrial networks. Reducing copper wires is a strategic goal of car-makers, aerospace framers and even smart cities lighting designers.
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Just about everything should be working according to plan but its entirely possible that a few things got missed, for example, the charts at the end of the graded exams are not currently working. The power line as a rigid long conductor parallel to ground, guides the carrier waves to travel along the transmission line.
Point to point communication takes place between two SSB transceivers at both ends.