ZFD32-12系列户外高压真空分界开关(以下简称分界开关)，是额定电压12kV,三相交流50Hz的户外高压配电设备。由高性能真空断路器作为开关本体，配合专用分界开关控制器、零序电流互感器组成自动控制操作的高压开关设备。适用于变电站及工矿企业配电系统中保护和控制之用，更适用于农网、城网的改造需要。能够方便用户实现中压架空线电网的线路保护及三遥功能，实现智能电网自动化与提高配电网运行管理水平的理想设备。具有保密性高、可靠性高、抗干扰能力强等特点，可实现远程监控,使用户足不出户就可以完成对中压架空线电网的监视与控制，协助用户更好的维护输供电网络,保证电分散控制系统是以微处理器为基础，采用控制功能分散、显示操作集中、兼顾分而自治和综合协调的设计原则的新一代仪表控制系统。集散控制系统简称DCS,也可直译为“分散控制系统”或“分布式计算机控制系统”。它采用控制分散、 操作和管理集中的基本设计思想，采用多层分级、合作自治的结构形式。其主要特征是它的集中管理和分散控制。DCS在电力、冶金、石化等各行各业都获得了极其广泛的应用。
SCM4.2
DCS通常采用分级递阶结构，每一级由若干子系统组成，每一个子系统实现若干特定的有限目标，形成金字塔结构。可靠性是DCS发展的生命，要保证DCS的高可靠性主要有三种措施:一是广泛应用高可靠性的硬件设备和生产工艺;二是广泛采用冗余技术;三是在软件设计上广泛实现系统的容错技术、故障自诊断和自动处理技术等。当今大多数集散控制系统的MTBF可达几万甚至几十万小时。在DCS关联领域有许多新进展，主要表现在如下—些方面。系统功能向开放式方向发展。传统DCS的结构是封闭式的，不同制造商的DCS之间难以兼容。而开放式的DCS将可以赋予用户更大的系统集成自主权，用户可根据实际需要选择不同厂商的设备连同软件资源连入控制系统，达到最佳的系统集成。这里不仅包括DCS与DCS的集成，更包括DCS与PLC、FCS及各种控制设备和软件资源的广义集成。仪表技术向数字化、智能化、网络化方向发展。工业控制设备的智能化、网络化发展，可以促使过程控制的功能进一步分散下移，实现真正意义上的“全数字”、“全分散”控制。另外，由于这些智能仪表具有的精度高、重复性好、可靠性高，并具备双向通信和自诊断功能等特点，致使系统的安装、使用和维护工作更为方便。
SCM4.2
The ZFD32-12 series outdoor high-voltage vacuum boundary switch (hereinafter referred to as the boundary switch) is an outdoor high-voltage distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. A high-voltage switchgear consisting of a high-performance vacuum circuit breaker as the switch body, a dedicated boundary switch controller, and a zero sequence current transformer for automatic control operation. Suitable for the protection and control of power distribution systems in substations and industrial and mining enterprises, and more suitable for the transformation needs of rural and urban power grids. It is an ideal equipment that can facilitate users to achieve line protection and three remote functions for medium voltage overhead power grids, achieve intelligent grid automation, and improve the operation and management level of distribution networks. It has the characteristics of high confidentiality, high reliability, and strong anti-interference ability, and can achieve remote monitoring, allowing users to complete monitoring and control of the medium voltage overhead power grid without leaving their homes. It assists users in better maintaining the transmission and power supply network, ensuring that the decentralized control system is a new generation instrument control system based on microprocessors, adopting the design principles of decentralized control functions, centralized display operations, and balancing division, autonomy, and comprehensive coordination. Distributed control system, abbreviated as DCS, can also be directly translated as “distributed control system” or “distributed computer control system”. It adopts the basic design concept of decentralized control, centralized operation and management, and adopts a multi-level hierarchical, cooperative and autonomous structural form. Its main feature is its centralized management and decentralized control. DCS has been widely used in various industries such as power, metallurgy, and petrochemicals
SCM4.2
DCS usually adopts a hierarchical structure, with each level consisting of several subsystems, each subsystem achieving specific finite goals, forming a pyramid structure. Reliability is the life of the development of DCS, and there are three main measures to ensure the high reliability of DCS: firstly, widely apply high reliability hardware equipment and production processes; Secondly, redundancy technology is widely adopted; The third is to widely implement system fault-tolerant technology, fault self-diagnosis, and automatic processing technology in software design. The MTBF of most distributed control systems today can reach tens of thousands or even hundreds of thousands of hours. There are many new developments in the field of DCS correlation, mainly manifested in the following aspects. The system functions are developing towards an open direction. The structure of traditional DCS is closed, making it difficult to be compatible between DCS from different manufacturers. An open DCS system can give users greater autonomy in system integration. Users can choose different manufacturers’ equipment and software resources to connect to the control system according to their actual needs, achieving the best system integration. This includes not only the integration of DCS and DCS, but also the broad integration of DCS with PLC, FCS, and various control equipment and software resources. Instrument technology is developing towards digitization, intelligence, and networking. The intelligent and networked development of industrial control equipment can further disperse and shift down the functions of process control, achieving true “all digital” and “all decentralized” control. In addition, due to the high accuracy, repeatability, reliability, and bidirectional communication and self-diagnosis functions of these intelligent instruments, the installation, use, and maintenance of the system are more convenient
SCM4.2
There are no reviews yet.