Nanyang 500 kv baihe implement analysis of substation automation system

Abstract: nanyang 500 kv baihe substation automation system to implement analysis information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. 0 quote 500 kv baihe substation is 1 of henan province nanyang to realize integrated automation substation. In this paper, the engineering design and site commissioning as a starting point, the design features of substation automation system are expounded, and found in the debugging process. More flow meter manufacturers choose model price quote you are welcome to inquire, here is 500 kv nanyang baihe substation automation system implementation details analysis. 0 quote 500 kv baihe substation is 1 of henan province nanyang to realize integrated automation substation. In this paper, the engineering design and site commissioning as a starting point, the design features of substation automation system are expounded, and the problems found during the debugging process put forward some useful Suggestions. 1 engineering general situation of nanyang substation 500 kv baihe town is located in the city of henan province nanyang red mud bay. The completion of the transformer substation can improve 500 kv main structure, improve power supply reliability, is central China power grid in power switching hub. The site zui final size give priority to transformer 2 & times; 750 mva, 8 to 500 kv line, 220 kv line 12, 3 x50mvar high voltage shunt reactor, 35 kv side joint power and reactive power compensation device. 500 kv the 3/2 connection, 220 kv for double box section, 35 kv for single mother wiring. 2 design characteristics of nanyang 500 kv baihe substation is a super high pressure hub substation, will be built in stages. In order to ensure the safety of the automation system running reliability, reduce the expansion work difficulty, complexity, and the system outage time, ensure the expansion of the system reliable operation, automation systems engineering design has the following characteristics. 1 the network structure, the double configuration of the substation operator workstation for on-site operation equipment monitoring and control operation has strict requirements [ 1] 。 Station running equipment status, parameter and ZhanJi layer control commands are by means of network transmission, therefore, baihe substation automation system control layer used the redundancy design, according to the dual Ethernet configuration, and run in the form of hot standby each other, ZhanJi layer set up double operator workstations, each operator workstations configured with dual monitors. Two operator stations with master-slave mode to work at the same time, but only the host gives the output control command. Manual switch time is less than 1 s, between master-slave machine failure automatic switch time less than 10 s. In addition, also equipped with machine and engineer station, station management to strengthen the management of equipment within the station. 2 remote information transmission of double baihe substation automation system is the main two remote information channel. Two remote host running in main case way, remote information respectively and straight straight through the network to send two ways respectively to two remote host. In straight mining sent straight way, remote information directly by the spacer layer through optical fiber transmission to the remote host, this ensures even stand accused of layer time-outs, substation telecontrol information can still be transmitted to the scheduling. 3 measurement and control unit more powerful the substation voltage grade, size, number of primary equipment and secondary equipment, dc system, control system and so on also is much more complicated than in voltage transformer substation, a vast number of switch quantity, simulation quantity so it. Information acquisition unit and control commands of I/O is especially important in the position in the substation measurement and control device. The site was chosen by nanjing electric power automation research institute sino-german companies with Germany's Siemens 6 mb524 zui new series of measurement and control unit. 2%, the accuracy of frequency can reach 0. 001 hz, switch input, output, and the imlet and analog input 'way, and can according to specific project requires reasonable selection of different models, can also realize the breaker in the same period of switch, isolating and earthing switch breaker error protected chain, advanced functions such as standby power source, can display a wiring diagram of the unit, made in the interval layer to control the operation more convenient, more intuitive. 6 mb524 has a perfect and reliable measurement and control during the same period closing operation function, all in the same period of 500 kv and 220 kv circuit breaker closing are dispersed by the corresponding interval 6 mb524 measurement and control unit to complete, this not only reduces the equipment investment, avoid the repeated configuration, hardware set each but also simplify the secondary loop. Standing for electricity since the voting logic by spacer layer 6 mb5515 main unit. The case since the pitch perfect logic functions, to ensure the correct work power disconnect after standby power supply. 4 to control operation level 3 error protected atresia, put an end to wrong operation compared with the most current substation error prevention atresia is implemented, the station zui big difference five prevention device is not configured. In the transformer substation all electric isolation switch breaker and grounding by the automation system itself to achieve the complete level 3 error protected atresia, manual isolating switch and the operation of breaker grounding will after automation system error protected closure to complete.

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