安全运行的

• No . 15 fault of yunfeng dam is a low angle one . its space structure is very complex . had not been disposed thoroughly during the period of construction , it has become the control factor in yunfeng hydroelectric project
  云峰宽缝重力坝右f _ ( 15 )断层为一个顺河向、缓倾角大断层，空间结构非常复杂，是影响大坝安全运行的控制因素。
• Low frequency oscillations among interconnected synchronous generators are phenomena inherent to power systems . the stability of these oscillations is of vital concern , and is a prerequisite for secure operation of power system
  低频振荡是互联电力系统固有的现象，其振荡的稳定性是保障系统安全运行的先决条件，因此得到极大关注。
• The development of tilting train is one of the national crucial programmers . and the testing system is so important in the whole project that its effective design attaches to the security of the tilting train running
  摆式列车项目的研究是国家重点课题，测试系统在整个研究中占有重要的地位，是关系着摆式列车能否安全运行的一个重要环节。
• For the initially commissioned gas transmission pipeline , foreign materials such as soil , water and light oil will enter into pipe , which is hazardous to the operation of pipeline and some facilities
  在天然气长输管道投产初期，因各种原因会产生一些威胁管道安全运行的问题，如管内存在泥土、水、轻质油等有害物质，若不及时清除，将会堵塞管道及相关设备。
• Power system stability plays an important role in the safe operation of network , which will cause enormous economic losses and calamitous consequence when it is destroyed . there have been lots of bitter lessons existed in the world
  电力系统稳定是电网安全运行的关键，一旦遭到破坏，必将造成巨大的经济损失和灾难性的后果，世界各国不乏惨痛教训之例。
• The research project analyzes allowance of the power supply capability of the mv / lv distribution power network . further : on the premise of guaranteeing the power network to operate safely , calculations of load increase are finished and so on
  课题还进一步对中低压配电网的供电能力进行了欲度分析，即在保证电网安全运行的前提下，进行负荷增长等计算。
• Since conventional approaches were ineffectual , theoretical analysis and calculation were applied to find out the fault area and the reasons , and the fault was eliminated without affecting the safe operation of the unit
  由于常规的消缺办法无法奏效，通过观察总结出隐含规律，并依据理论分析和公式计算找出故障范围和原因，在不影响机组安全运行的基础上消除了缺陷。
• With the rapid development of power industrial in our country , the protectiondevice for transformer whether can exactly , timely , reliably act , which is one of animportant factor for power grid to guarantee running securely in modern electricsystem
  随着我国电力工业的迅速发展,在现代电力系统中,变压器保护装置能否准确、及时、可靠的动作是保证电网安全运行的关键因素之一。
• Crank of internal combustion engine after every process and hot surface treatment will produce fairly deformation , that is jumping overproof . so alignment without destroy for its tissue and property is important factor which ensure operation of crank safely
  内燃机曲轴在各加工工序及表面热处理后会产生一定的变形即跳动超差，对其组织和性能无破坏的校直是保证曲轴安全运行的重要因素。
• From the point of view of dam safety operation , identification and analysis of the potential risk during dam operation is studied . at the meantime , a risk evaluation model of dam operation is explored on the basis of the theory of large - scale system
  本文从影响大坝安全运行的主要因素出发，探讨了大坝运行潜在风险的识别和分析问题，深入研究了基于大系统理论的大坝运行风险评价模型的建立方法。