8910-PS-DC GE数字量输入模块

 8910-PS-DC GE数字量输入模块　

微机保护装置除了具有上述微机保护的优点之外，与同类产品比较具有以下特点：（1）品种齐全：微机保护装置，品种特别齐全，可以满足各种类型变配电站的各种设备的各种保护要求，这就给变配电站设计及计算机联网提供了很大方便。（2）硬件采用的芯片提高了技术上的先进性，CPU采用80C196KB，测量为14位A/D转换，模拟量输入回路多达24路，采到的数据用DSP信号处理芯片进行处理，利用高速傅氏变换，得到基波到8次的谐波，特殊的软件自动校正，确保了测量的高精度。利用双口RAM与CPU变换数据，就构成一个多CPU系统，通信采用CAN总线。具有通信速率高（可达100MHZ，一般运行在80或60MHZ）抗干扰能力强等特点。通过键盘与液晶显示单元可以方便的进行现场观察与各种保护方式与保护参数的设定。（3）硬件设计在供电电源，模拟量输入，开关量输入与输出，通信接口等采用了特殊的隔离与抗干扰措施，抗干扰能力强，除集中组屏外，可以直接安装于开关柜上。（4）软件功能丰富，除完成各种测量与保护功能外，通过与上位处理计算机配合，可以完成故障录波（1秒高速故障记录与9秒故障动态记录），谐波分析与小电流接地选线等功能。（5）可选用RS232和CAN通信方式，支持多种远动传输规约，方便与各种计算机管理系统联网。（6）采用宽温带背景240×128大屏幕LCD液晶显示器，操作方便、显示美观。（7）集成度高、体积小、重量轻，便于集中组屏安装和分散安装于开关柜上。 8910-PS-DC GE数字量输入模块

　　微机保护与测控装置采用了国际先进的DSP和表面贴装技术及灵活的现场总线（CAN）技术，满足变电站不同电压等级的要求，实现了变电站的协调化、数字式及智能化。此系列产品可完成变电站的保护、测量、控制、调节、信号、故障录波、电度采集、小电流接地选线、低周减载等功能，使产品的技术要求、功能、内部接线更加规范化。产品采用分布式保护测控装置，可集中组屏或分散安装，也可根据用户需要任意改变配置，以满足不同方案要求。微机保护装置适用于110KV及以下电压等级的保护、监控及测量，可用于线路、变压器、电容器、电动机、母线PT检测、备用电源自投回路及主设备的保护、控制与监视。单元化的设计使其不但能方便地配备于一次设备，也可以集中组屏、集中控制。规范的现场总线接口支持多个节点协调工作，实现系统级管理和综合信息共适用范围随着科学技术手段的进步，和对适用环境更高要求，微机保护功能性也越趋完善。通用型微机综合保护装置可作为35KV及以下电压等级的不接地系统、小电阻接地系统、消弧线圈接地系统、直 接接地系统的各类各类电器设备和线路的保护及测控，也可作为部分66KV、110KV电压等级中系统的电压电流 的保护及测控

 8910-PS-DC GE数字量输入模块

In addition to the advantages of the above-mentioned microcomputer protection, microcomputer protection devices have the following characteristics compared with similar products: (1) Complete varieties: microcomputer protection devices are particularly complete, which can meet all kinds of protection requirements of various equipment in various types of power distribution stations, which provides great convenience for the design of power distribution stations and computer networking. (2) The chip used in the hardware improves the technical advancement. The CPU is 80C196KB, and the measurement is a 14-bit A/D conversion. There are as many as 24 analog input circuits. The collected data are processed by the DSP signal processing chip, and the harmonics from the fundamental wave to the eighth order are obtained by using the high-speed Fourier transform. Special software automatically corrects them, ensuring the high accuracy of the measurement. By using dual-port RAM and CPU to convert data, a multi-CPU system is formed, and CAN bus is used for communication. It has the characteristics of high communication speed (up to 100MHZ, generally operating at 80 or 60MHZ) and strong anti-interference ability. Through the keyboard and liquid crystal display unit, it is convenient to observe the scene and set various protection modes and protection parameters. (3) The hardware design adopts special isolation and anti-interference measures in power supply, analog input, switch input and output, communication interface, etc., which has strong anti-interference ability and can be directly installed on the switch cabinet in addition to centralized screen assembly. (4) The software is rich in functions. In addition to various measurement and protection functions, it can complete fault wave recording (1 second high-speed fault recording and 9 seconds fault dynamic recording), harmonic analysis and small current grounding line selection by cooperating with the upper processing computer. (5) RS232 and CAN communication modes can be selected to support various telecontrol transmission protocols and facilitate networking with various computer management systems. (6) It adopts 240×128 large-screen LCD with wide temperate background, which is convenient to operate and beautiful to display. (7) High integration, small volume and light weight, which is convenient for centralized panel installation and decentralized installation on switchgear.

 8910-PS-DC GE数字量输入模块

The microcomputer protection and measurement and control device adopts internationally advanced DSP, surface mount technology and flexible field bus (CAN) technology, which meets the requirements of different voltage levels of substations and realizes the coordination, digitalization and intelligence of substations. This series of products can complete the functions of substation protection, measurement, control, regulation, signal, fault recording, power acquisition, low current grounding line selection, low cycle load shedding and so on, making the technical requirements, functions and internal wiring of the products more standardized. The product adopts distributed protection measurement and control devices, which can be assembled in a centralized way or installed in a decentralized way, and the configuration can be changed at will according to the needs of users to meet the requirements of different schemes. The microcomputer protection device is suitable for the protection, monitoring and measurement of voltage levels below 110KV, and can be used for PT detection of lines, transformers, capacitors, motors, buses, automatic switching circuits of standby power supplies and protection, control and monitoring of main equipment. The unitized design makes it not only convenient to be equipped with primary equipment, but also centralized screen assembly and control. The standardized field bus interface supports the coordinated work of multiple nodes, realizing the common application scope of system-level management and comprehensive information. With the progress of scientific and technological means and higher requirements for applicable environment, the functionality of microcomputer protection is becoming more and more perfect. The general microcomputer comprehensive protection device can be used as the protection and measurement and control of all kinds of electrical equipment and lines in ungrounded systems, small resistance grounding systems, arc suppression coil grounding systems and direct grounding systems with voltages of 35KV and below, and also as the protection and measurement and control of voltage and current in some systems with voltages of 66KV and 110KV.

 8910-PS-DC GE数字量输入模块