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IEC 61850 Application in Railway Traction Substation Monitoring and Control System Preface By the end of 2005, the total mileage of electrified railway in our country has more than 20000 km, traction substation of primary and secondary equipment variety, different interface standard, technical equipment level differences between different regions, so the traditional traction substation telecontrol system cannot meet the needs of multiple substation remote monitoring. How to utilize the high coverage of the Internet, through the seamless connection of information…
Introduction Bus Protection Principles The behavior of bus protection systems during different fault conditions is critical to the stability and security of the electric power system, due to the tripping of the multiple lines and transformers connected to the bus. Fast fault clearing for faults on the bus is very important, while at the same time operation of the bus protection for external faults must be avoided in order to reduce the probability of a system disturbance. For many years,…
Dry contact Closure: Dry contact may mean any of the following in electronics: No current: Dry contact can refer to a secondary set of contacts of a relay circuit which does not make or break the primary current being controlled by the relay. Usually some other contacts or devices have the job of starting or stopping the primary current being controlled. For example, a reed relay matrix switch is normally switched with all contacts dry. After the contacts are all…
CanBus is the earliest Bus technology is used in electronic systems, aircraft, tanks and other weapons of communications. Will this technology used in civil car originating in Europe, the bus network is used to the car in the car all kinds of sensor data transfer. As the CANBUS developing and perfecting, as a kind of advanced technology, high reliability, good function and reasonable cost of remote network communication control mode, the CAN - BUS is no longer limited to automotive…
There’s plenty of room for confusion in today’s marketplace when it comes to defining advanced metering infrastructure (AMI)—the industry has yet to come to consensus on exactly what AMI means. Automated meter reading (AMR), on the other hand, is well defined and well represented. As the industry leader in advanced metering technology, Itron provides its customers with a clear choice of both AMR and AMI technology. Itron’s AMR offering, ChoiceConnect™, provides proven performance and value along with the flexibility to…
Smart Power meter is the smart grid construction, electric power customer electricity information collection system construction is the most basic unit, smart meters change is closely related to the power of the families. At present most of the customers to use electricity in our province of power meter is single function of the more common electronic watt-hour meter, no communication function or communication mouth damage, is now can not meet the national construction of smart grid, smart electricity and the…
A distributed control system (DCS) refers to a control system usually of a manufacturing system[clarification needed], process or any kind of dynamic system, in which the controller elements are not central in location (like the brain) but are distributed throughout the system with each component sub-system controlled by one or more controllers. DCS (Distributed Control System) is a computerized control system used to control the production line in the industry The entire system of controllers is connected by networks for…