PZK-56系列配电网自动化终端测控单元包括PZK-56A、PZK-56B、PZK-56C、PZK-56K，与电源、操作控制回路、通信终端及机箱配合使用，构成柱上开关、重合器、环网柜、开闭所、配电室、箱式变电站、配电变压器以及无功补偿电容器等终端装置。

产品功能完善，通用性强，可方便地通过改变配置方式字来适应不同的应用要求，亦可根据用户的特殊要求进行专门设计。

主要功能

lSCADA测量与控制

l当地存储

l故障录波

l短路故障检测与定位

l小电流接地故障检测与定位

l分界开关控制

l电流保护

l就地型馈线自动化

l分布式馈线自动化

l分布闭锁式电流保护

l分布式电流差动保护

l分布式远方跳闸反孤岛保护

l分布式计划孤岛供电不平衡功率控制

l智能后备电源管理

l对时功能

l通信功能

l在线配置功能

l自诊断、自恢复功能

l远程维护功能

l其它可选择与扩展功能

技术特点

l插箱式结构设计，可根据需求灵活配置，便于实现“二遥”或“三遥”功能。

l模块化、标准化结构，采用高速实时串行总线，扩展灵活、维护方便。

l采用高性能数字信号处理器、大规模现场可编程逻辑阵列，具有强大的实时数据处理能

 力和丰富的内存资源，满足高级应用软件以及通信、系统管理、人机交互等功能的应用

 要求。

l基于实时Linux操作系统，采用层次化、模块化软件结构，应用程序通过开放式接口访

 问底层资源和数据，将数据与应用分离，支持动态加载、卸载应用程序，应用程序即插

 即用，为各种智能配电网应用程序提供统一的支撑平台。

l提供类似PC机的软件开发环境，可方便地开放新的应用软件，增加新的应用功能。

l软硬件冗余设计，具有强大的容错和自诊断、自恢复能力。

l基于IEC 61850标准设计，具备自发现、自描述功能，实现与配电主站即插即用。

l人机界面友好，运行状态监视完善，现场调试、维护方便。

l具备WEB服务功能，可使用通用网页浏览器，访问实时数据、下载历史数据、配置文

 件，远程维护方便。

技术指标

 Shandong Kehui Power Automation Co., Ltd. was originally known as Zibo Kehui Electric Co., Ltd. and the private Zibo Kehui Electric Instrument Research Institute founded in 1993 and 1991 respectively.
    Shandong Kehui Power Automation Co., Ltd. develops, produces and sells power cable fault monitoring equipment, power distribution automation equipment, railway power automation and switched reluctance motor drive system. It has an Automation Department, a Switched Reluctance Motor Department, and a subsidiary of Jinan R&D Center and Jinan Kehui Automation Engineering Co., Ltd., domestic offices in Shanghai, Guangzhou, Chengdu, and Xi’an, etc. and overseas offices in London and Seattle. It has over 260 employees now, of whom 60% have a bachelor degree or above. In 1998, it was certified to ISO9001 Quality Management System. It is a high-tech enterprise designated by the Department of Science & Technology of Shandong Province and one of the “Top 10 Excellent Software Enterprises” rewarded by the Department of Information Industry of Shandong Province.

    It is headquartered in Zibo, a famous industry city of middle Shandong. Shandong Kehui Science and Technology Park covers an area of over 120 mu, with exquisite environment and complete facilities. It has power automation labs, power monitoring labs, and switched reluctance motor labs equipped with complete facilities for development, production and inspection, good network and communication ability, sophisticated office and logistics facilities, providing a broad space for further development. Kehui Jinan R&D Center with a building area of 4,000 square meters, located in Jinan High-tech District Software Park, will attract more talented people to join in Kehui and strengthen Kehui in developing and introducing new technologies.

    Shandong Kehui Power Automation Co., Ltd. has been taking technology innovation as the lifeline of its development. A technology development team of high quality led by Doctor Xu Bingyin was established including 5 doctors, and more than 30 masters. Kehui, well-known for its specialty in power cable fault monitoring, is China’s only manufacturer providing complete solutions on fault monitoring and positioning of power cable, distribution wire, and transmission wire. The T-series power cable fault detection instruments, XJ-series distribution wire fault monitoring and positioning system, and XC-series traveling wave ultrahigh-voltage transmission wire fault ranging system developed have reached international advanced level, and solved the faults positioning problem that has obsessed power departments for a long time. Winning the 2nd Prize of National Technology Invention, and the Award for Progress in Science and Technology of Shandong Province, the products occupy over 50% domestic market share, and have been exported to Britain, Italia, Africa, South Asia and South America, etc. In 1994, for the first time in China, Kehui developed power system synchronous clock for receiving GPS satellite signal, which has been applied to over 6000 stations and factories in China. The PZK-series distribution automation terminal unit, developed by Kehui in 1997, with the new technology of embedded system adopted, has reached international advanced technology level, and over 10,000 sets have been put into operation. As the first company who started the railway power automation business in China, the KH-series railway power dispatching automation system and distribution substation automation system developed by Kehui has been introduced to over ten railway administrations in China. The SRD-series switched reluctance motor drive system, developed by Kehui in 2005, passed the verification performed by Yao Fusheng and Lu Bingheng, academicians of China Academy of Engineering, and Li Haifa, Professor of Tsinghua University, and was considered to be international advanced. The SRD-series product, with good energy-saving effect, low starting current, small starting torque, solid structure and high reliability, is a major breakthrough of drive system, and has a good market prospect.

    In the business principle of “People Orientation, Customer Supremacy, Continuous Innovation, Constant Improvement”, Shandong Kehui Power Automation Co., Ltd. strives to provide customers with better products as well as sincere, thoughtful, professional and timely service. While developing business, Kehui strengthens the team construction, basic management construction, and enterprise culture construction, and has built up efficient and normalized management mechanism with international standards, to achieve sustainable and healthy development of the company through the growth of organization and the enhancement of management level.
    In future, Kehui people will continuously carry forward the pioneering spirit of “Struggle, Innovation, Improvement”, expand the business scale, enhance management level, and promote the competitiveness comprehensively, to build Kehui as a power monitoring and automation enterprise with strong economic strength and outstanding innovation ability and make Kehui first-class in China and internationally influential.