ZFD32-12 series outdoor high vacuum boundary switch (hereinafter referred to as boundary switch), is rated voltage 12kV, three-phase AC 50Hz outdoor high voltage distribution equipment. It is opened by a high performance vacuum circuit breaker
Close the body, with the special demarcation switch controller, zero sequence current transformer composed of automatic control operation of the high-voltage switchgear. It is suitable for the protection and control in the power distribution system of power stations and industrial and mining enterprises
In the rural network, urban network transformation needs.
It can facilitate users to realize the line protection and three remote functions of medium voltage overhead line power grid, realize the automation of smart grid and improve the operation and management level of distribution network. Bribe high confidentiality, reliability
High, strong anti-interference ability, remote monitoring can be realized, and users can complete the monitoring and control of the medium-voltage overhead line power grid without leaving the house, helping users to better maintain the power supply network and ensure electricity
Force supply.
Decentralized control system is a new generation instrument control system based on microprocessor, which adopts the design principles of decentralized control function, centralized display operation, taking into account division, autonomy and comprehensive coordination. Distributed control system
DCS can also be translated as "distributed control system" or "distributed computer control system". It adopts the basic design idea of decentralized control, centralized operation and management, and adopts multiple levels and cooperation
The structural form of governance. The main feature is its centralized management and decentralized control. DCS has been widely used in power, metallurgy, petrochemical and other industries.
DCS usually adopts a hierarchical hierarchical structure, each level is composed of several subsystems, each subsystem to achieve a specific limited goal, forming a pyramid structure.
Reliability is the life of DCS development, there are main measures to ensure the high reliability of DCS :- extensive application of high reliability hardware equipment and production process; Secondly, redundancy technology is widely adopted. The third is that...
The software design extends the fault tolerance technology, fault self-diagnosis and automatic processing technology of the system. Most distributed control systems today have MTBF of tens of thousands or even hundreds of thousands of hours.
There are many new developments in the field of DCS correlation, mainly in the following aspects.
(1) The system function develops in an open direction. The structure of traditional DCS is closed, and it is difficult to compatible between DCS from different manufacturers. The developed DCS will give users greater autonomy in system integration
Right, donkey can choose different manufacturers of equipment together with software resources to connect to the control system according to actual needs, to achieve the best system integration. This includes not only the integration of DCS and DCS, but also DCS and DCS
Generalized integration of PLC, FCS and various control equipment and software resources.
(2) Instrument technology is developing in the direction of digitalization, intelligence and networking. The intelligent and networked development of industrial control equipment can promote the function of process control to further move down and realize the real sense
"All digital", "all decentralized" control. In addition, because these intelligent instruments have high precision, high reliability, and are equipped with two-way communication and self-diagnosis functions, the system is very good
More convenient installation, use and maintenance work.
