Preface  

Power transformation equipment is the basic unit of power transmission network.  The safety of the equipment is directly related to the security and stability of the  transmission network and has a significant influence over the development of the society  and economy. Therefore, we should timely detect the operation of the network and carry  out essential maintenance work. Once the accident cannot be fixed timely or properly, it  will endanger the safe operation of the network and even cause a large-scale power  outage. Because of this, improving the operation level of the substation personnel and the  maintenance skills of the maintenance staff to ensure the health level of the  transformation equipment becomes the important factor in keeping the safe and stable  operation of the transmission network. Therefore, it is imperative to improve the basic  knowledge and skills of the transformation operation and equipment maintenance as well  as the comprehensive quality of the substation staff in order to enable them to analyze  and deal with the accidents correctly and accurately report the exact information of the  accidents to relevant departments.  This book mainly studies and analyzes the operation and maintenance of power  transformation equipment and exception handling. Firstly, this paper introduces the  related concepts, classification, precautions and treatment measures of the transformation  equipment and studies the power transformers and its related accessories. It also analyzes  relevant information of SF6 circuit breakers and its related accessories. Secondly, this  paper introduces the transformer by providing an overview of it and information of its  classification and maintenance. It gives introductions of the isolating switch and its  related accessories. It also introduces the lightning rod, grounding grid and inductor and  studies the maintenance of their operations.  With the advent of the era of knowledge economy, the scientific and technological  content of the equipment of the power transmission network is constantly improving and  the integrated automation technology of substations is continuously developing. Thus, it  has become an inevitable trend towards having fewer or no substation’s staff at work  which put forwards new requirements and topics for the vast operation and maintenance  personnel in power transmission network. At the same time, it also requires the  introduction of the new concept of “details determine the success” and “risk control” in  the safe production process, enhancement in implementing the standardized management  and operation and improvement in the knowledge level of the whole crew members in  order to make the safe production into a benign development track which is controllable  and under control. 

前 言  

变电设备是电网的基本单元，变电设备的安全，关系到电网的安全和稳定，对社 会和经济和的发展有很重要的关系。所以我们要及时检测运行维修，一旦发生事故而 不能及时消除或处理不当，就将危及电网的安全运行，严重时会造成大规模的停电。 所以提高变电所值班人员的运行操作水平及检修人员的检修技能，保证运行设备的健 康水平，成为安全稳定运行的重要条件。正确地对事故进行分析和处理，并准确地向 调度和有关部门汇报事故确切信息，提高对变电运行和检修职工能熟悉和了解变电运 行及设备检修的基本知识和技能，提高现场运行和检修人员的综合素质。 本书主要对变电设备运行维护及异常处理进行研究分析，首先，文章介绍变电 设备的相关的概念、分类、注意事项和处理措施；对电力变压器及相关附属设备进 行研究；分析 SF6 断路器及其相关附属设备相关的信息。其次，本文还从互感器 的概述、类型、维修等了解互感器；介绍隔离开关及附属设备；了解对避雷针、接 地网以及电抗器，并对其运行维修进行研究。 随着知识经济时代的到来，电网设备的科技含量不断提升，变电所综合自动化技 术不断发展，变电所无人值班或少人值班已成为一个必然趋势，这就对广大的变电现 场运行和检修人员提出了新的要求和新的课题。同时，还要求在生产过程中引进“细 节决定成败”、“风险预控”安全生产新理念，强化实施标准化管理和标准化作业， 提高作业人员的整体知识水平，使安全生产步入可控、在控的良性发展轨道。