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Gezhouba the development of major power plant computer monitoring system Review

No contact. Figure 1. So when the front-end failure, the unit R'TU communication between PC and the task may be interrupted or moved to another front-end, increasing the front-end load, affecting the speed. May also lead to failure are the two front-end. The host computer and all of RTU communication disruption, affecting the function and monitor system performance. Power from the hospital in 3000 ssJ a system, as shown in Figure 2, each unit RTU way through the cross-redundancy and two IPC connection with the host, respectively, connected to the Internet, when two simultaneous failure of IPC. RTU unit may lose contact with the host. During operation, the industrial machine is failure-prone points. Frequent failure of the computer and control system. Therefore,[link widoczny dla zalogowanych], IPC front-end or become the bottleneck of the computer monitoring system, and their main function is to achieve communication with the continuous improvement of computer technology, RTU directly to the reliability and economics of the Internet has also been recognized in the future monitoring system should be avoided as much as possible with a front-end or industrial computer or the Internet to communicate. To minimize the bottleneck of the computer monitoring system performance. (Again under the special 4) 420O0 l2 months of the total hydropower plant automation Supplement No. 79 Table 1ZnO nonlinear resistance in parallel excitation linear resistance test records the number of trials before the test data l2 Ud/ld/Ug/f220v/850A / 100V/49.2Hz300V/I Shan A/108V/448l-lz data Max Ud/Ufl/lfl/lf2IO50V/1495V / / 308All05v/1634V/847A/340A excitation switch arcing time of 0038 seconds O. build pressure 04 seconds time constant of generator excitation seconds, 0,656 seconds r0624 excitation energy in the Rfl / R on the distribution / l55K1417 / 1 ship off magnetic switch for the recent non-linear resistor with ZrlO excitation, its magnetic field current transfer is not successful , resulting in the failure of eradication Reed, we believe, of ZnO nonlinear resistor in parallel connection of linear magnetic resistance is improved this off, the proposed introduction of key technologies, namely primary and secondary magnetic field excitation current dynamic transfer channel, a common de-excitation , we can better solve the problem. Magnetic field using the current dynamic of the program after the transfer of technology, to eliminate performance requirements of the magnetic switch will greatly reduce the arc, making the de-excitation devices greatly improve the overall reliability and adaptability. Mrs Wong to men, engineers, engaged in picking up hydropower plant automation equipment repair and technical management of the heap protection. Shao Xianjun men. Engineer,[link widoczny dla zalogowanych], hydropower plant automation equipment seized in the repair and technical management of the heap protection. Chen Xiaoming men, engineers, magnetic devices in the hydropower plants hanging toilet repair child care 3F. For. (Continued from page 35) made 36 of the current monitoring system in the country, computer monitoring system are basically two ways, one is fully imported computer control system, and the other is the use of domestic computer monitoring system. In recent years, the level of computer monitoring system has been greatly improved, such as electricity from the hospital,[link widoczny dla zalogowanych], water and other EPRI research and development integrated computer control system, have reached a very high level. Therefore,[link widoczny dla zalogowanych], the domestic system and the comparison of foreign systems, to improve the level of domestic surveillance system has an important significance. Imported computer control system has the following disadvantages: the introduction of monitoring systems often can not meet the actual and current situation of domestic hydropower plants, there is a system put into operation in poor and not timely technical services, spare parts acquisition difficult and expensive long cycle, and Speaking of bad man-machine interface and user training difficult issues. Although the domestic network of workstations computer monitoring system, PLC and other major hardware mixing equipment can use the most advanced products, but there are the following disadvantages: such as components of quality is poor, heat a large, poor stability, poor standardization of software and communications interfaces in system design and software technology, and also with a certain gap between the foreign. Computer monitoring system based on the current domestic and international technology Gezhouba major power status and the development of computer monitoring system, experiences and lessons learned in order to improve the level of domestic technology, should be based on domestic,[link widoczny dla zalogowanych], mainly foreign forming and mature the underlying hardware and operating system software, by domestic manufacturers in the adaptability of user requirements and services for system design, integration, and application software development, is the introduction of foreign technology products, the digestion and absorption, to increase the level of domestic technology. The only way to have Chinese characteristics perfectly suited to meet the requirements of China's hydropower situation excellent computer monitoring system, to truly improve the automation level of hydropower plants. Introduce a new male agent, 3F. Engineers engaged in secondary electrical automation. Su Mang Xenocypris women, engineers, engaged in the secondary electrical automation.
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