1) rotor low-voltage
转子低电压
1.
Based on the analysis for component and characteristic of generator field-loss protection,it re-searchs the principle and realizablity of rotor low-voltage component and advances a feasible improve-ment plan.
在分析发电机失磁保护构成、特点的基础上,对其转子低电压元件的原理与实现进行了研究,提出了可行的改进方案。
2) LP rotor
低压转子
1.
The application of UGII-CAD/CAM software for nu me rical-control automatic programming of large turbine LP rotor is mainly introdu ced , and the analysis for several facets of Modeling, numerical control program ming, analog simulation to point orientation program, post processing's enactmen t and creation of program is given in detail.
主要介绍了UGⅡ CAD/CAM软件在大型汽轮机低压转子数控自动编程上的应用,并从模型的建立、数控编程、点位程序模拟仿真、后置处理的设定、加工程序的生成等几个方面上作了详细的分析。
2.
In view of the 330 MW subcritical condenser steam unit with single intermediate reheat,four cylinders and quadruple flow,the large-area cracking problem on the 4th-stage blade of LP rotor was analyzed.
以330MW亚临界、中间一次再热、四缸四排汽单轴凝汽式汽轮发电机组为背景,针对汽轮机低压转子第4级叶片出现的大面积开裂问题,分析了影响叶片振动响应和动应力的主要因素,利用振动模型,对叶片的振动特性和动应力进行了分析计算,得出叶片振动特性设计不良是造成叶片开裂的主要原因。
3.
2 in Huaneng Hegang PowerGeneration Company had surpassed stanadard level under operation condition of rated revolution after major repair,it has been found from vibration data analysis that the secondary derivative mass imbalance to be existed on LP rotor and mass imbalance to be existed on coupling between generator and exciter.
鹤岗发电有限公司2号汽轮发电机组大修后额定转速下低压转子和励磁机转子轴振超标,分析振动数据发现,低压转子存在二阶质量不平衡及发电机励磁机联轴器质量不平衡。
3) Low-Pressure Rotor
低压转子
1.
Computer simulation on temperature field and phase transformation in low-pressure rotor during heating process
低压转子加热过程温度场与相变的计算机模拟
2.
The last stage blade in low-pressure rotor of unit No.
介绍了巴蜀江油电厂7号机低压转子末级叶片及其损坏情况和通流部分改造的实施过程及经验。
3.
In this paper, the processing technique was deeply investigated in details for machining the ultra-large palm-type groove of low-pressure rotor in 1000MW supercritical steam turbine.
1000MW汽轮机组低压转子国产化加工是上海汽轮机厂重点科研项目。
4) low pressure rotor
低压转子
1.
According to the testing and treatment for vibration fault of turbine-generator units, combined with construction features of low pressure rotor,the causes of vibration fault are summarized and analyzed.
汽轮机低压转子振动故障是影响汽轮发电机组安全稳定运行的主要原因之一。
2.
The present paper calculated the temperature field of low pressure rotor of the ultra-super turbine by using finite element method of Ansys.
采用Ansys有限元方法计算了超超临界机组低压转子的温度场,并整理了精练30Cr2N i4MoV低压转子材料的物理化学特性。
5) low-voltage electronic
低压电子
1.
The low-voltage electronic method displays a good anti-fouling performance by reducing fouling ions in solutions with electrochemistry reaction.
通过静态和动态两种方法对低压电子阻垢性能进行了实验研究。
6) HP&LP Rotor
高低压转子
补充资料:安全特低电压
分子式:
CAS号:
性质:又称安全特低电压,指保持独立回路的,其带电导体之间或带电导体与接地体之间不超过某一安全限值的电压。中国国家标准规定工频电压有效值的限值为50V、直流电压的限值为120V。中国标准规定工频电压有效值的额定值有42V,36V,24V,12V和6V。特别危险环境中使用的手持电动工具应采用42V安全电压。有电击危险环境中使用的手持照明灯和局部照明灯应采用36V或24V安全电压。金属容器内、特别潮湿处等特别危险环境中使用的手持照明灯应采用12V安全电压。水下作业等场所应采用6V安全电压。具有安全电压的设备即III类设备。
CAS号:
性质:又称安全特低电压,指保持独立回路的,其带电导体之间或带电导体与接地体之间不超过某一安全限值的电压。中国国家标准规定工频电压有效值的限值为50V、直流电压的限值为120V。中国标准规定工频电压有效值的额定值有42V,36V,24V,12V和6V。特别危险环境中使用的手持电动工具应采用42V安全电压。有电击危险环境中使用的手持照明灯和局部照明灯应采用36V或24V安全电压。金属容器内、特别潮湿处等特别危险环境中使用的手持照明灯应采用12V安全电压。水下作业等场所应采用6V安全电压。具有安全电压的设备即III类设备。
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