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主变保护装置在现场调试差动保护功能时,其保护原理以及计算方法较为复杂,通过对差动保护的工作原理、相位补偿等分析得出算法,设计了一款基于Android系统的主变保护调试计算软件。该软件在Android手机上运行,易于推广,能大大减少调试人员的手工计算量,为主变保护装置调试工作提供方便。 相似文献
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本文介绍了汽轮机组安装调试流程及个例问题的解决,包括汽轮机组工艺特点、安装调试流程、过程中的问题及解决办法等。以现场汽轮机组安装调试过程中存在的个例问题及解决办法为依据,对设备安装调试过程进行一定的总结,希望能为今后工作提供一定参考。 相似文献
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以河南诚宇焦化有限公司自备电厂(下简为该公司)与燃气轮机配套使用的焦炉煤气压缩机的安装调试过程为例,详细介绍了往复式压缩机在安装调试过程中出现的实际问题及相应处理方法,强调了安装过程中的注意事项以及调试过程中的控制要点,希望能为同类型压缩机的安装和调试提供一些经验。 相似文献
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汽轮机首次冲转是常规岛调试的重要试验项目,也是整个核电厂能否顺利并网发电,按时完成调试任务的关键控制点之一。针对汽轮机首次冲转过程中最常见的磨瓦事故进行了分析,阐述了磨瓦事故的有效处理方法、磨瓦的主要原因以及在安装和调试阶段有效预防磨瓦的手段。在汽轮机首次冲转时,一旦发生磨瓦事故,能快速有效地进行处理,减轻设备的损坏程度。通过了解磨瓦的原因,在汽轮机调试中就能有的放矢,采取相应的预防措施,从各个细节做起,杜绝磨瓦事故的发生,为调试顺利完成提供了保障。 相似文献
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主变压器是变电站内最重要的电力设备,主变的安全运行关系到变电站的整体安全,现场的主变保护电流保护功能调试效率低下,占用了继保调试人员的大量时间并产生了极大的操作风险。因此提出一种主变电流保护辅助调试装置,其具有高效、方便的优点,能缩短主变保护调试的耗时,降低调试操作的风险。 相似文献
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为加快智能制造单元的研发速度,更好地满足客户定制化要求和快速交货需求,以翻转机械手为例,提出了一种基于机电一体化概念设计平台MCD和全集成自动化工程平台TIA博图的联合虚拟调试方法。通过功能分解、物理及电气属性定义、仿真序列设定,建立起翻转机械手的MCD概念模型,利用PLCSIM Advanced设置虚拟PLC并与机械手MCD模型进行信号映射,从而构建了软件在环虚拟调试系统。该虚拟调试系统不依赖任何硬件设备,在实物设备制造前就能快速调试PLC控制程序并验证机械设计的合理性,能大幅缩短实物设备的调试时间,降低调试成本,极大地加快定制化智能制造单元的研发速度,提高市场竞争力。 相似文献
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数控机床的安装、调试是指机床到用户后安装到工作场地,直到正常工作这一阶段的工作。数控机床的安装、调试与验收能否达到预期效果,直接关系到数控机床投入使用后所能实现的技术性能指标和使用功能水准。 相似文献
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详细介绍了一种新颖的温控仪测试方法——Pt100的单片机阻抗模拟法,和基于此法的系统硬件和软件设计。与传统的测试装置相比,该设计大大简化了装置结构、降低了装置成本,可缩短测试时间。 相似文献
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Yu. A. Glazkov O. V. Ponomareva O. R. Khrolova 《Russian Journal of Nondestructive Testing》2006,42(11):760-764
A new kit for luminescent testing via the ЛЮM33-OB method contains materials in which shortcomings inherent to testing with the ЛЮM1-OB method are removed or diminished. A standard technology for testing parts that uses new materials is described. The structure of and operations required by the new technology possess similarities to those of the technology based on the ЛЮM1-OB method but still have some specific features. 相似文献
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渐开线圆柱齿轮齿厚精度的检验方法有多种。本文提出了对多种齿厚检验结果的等效换算及合理评定的理论依据,并建立了各检验项目间的偏差值换算式及极限偏差值换算式。采用本文的分析和计算方法可解决经常出现的齿厚检查项目与齿厚产品图纸规定的受检项目不一致的问题。本文对齿轮设计人员和检验人员均有实用价值。 相似文献
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V. I. Kapustin T. N. Maksimova V. G. Staseev V. G. Firstov 《Russian Journal of Nondestructive Testing》2001,37(12):900-906
Corrected general and methodical requirements to the method, technology, and instrumentation of radiographic testing which reflect the modern level of the development of nondestructive testing methods and radiation technique are established. Existing standards are analyzed to determine their degree of correspondence to the work under market conditions. Promising and priority trends in the field of standardization of radiographic testing method are determined. Ways for bringing the Russian standards in accordance with the international ones are proposed for approaches to the radiographic testing technique and technology and the testing and measurement instrumentations. 相似文献
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E. G. Bazulin A. E. Bazulin S. A. Kokolev T. M. Gur’eva 《Russian Journal of Nondestructive Testing》2014,50(6):307-317
A method of automated ultrasonic testing based on the use of a PAA flaw detector for the recording of echo signals followed by the reconstruction of the image of reflectors by applying the 3D variant of the method of projection in the spectral space (3D-PSS) is considered. Customized setting of the PAA flaw detector makes it possible to simulate the operation of many single-element transducers with different angles of incidence. This approach allows one to obtain the images of reflectors with a high resolution and a high signal-to-noise ratio at a depth of more than 100 mm. A procedure for the calibration of an antenna array on a prism operating in the mode of emulation of several piezoelectric transducers with different angles of incidence is discussed. The results of a testing a fragment of the support billet for the ITER diverter when obtaining the images by the classical PAA method and with the use of 3D processing, which demonstrate the efficiency of the developed testing technology, are presented. 相似文献
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K. V. Kostin V. N. Kostin Ya. G. Smorodinskii T. P. Tsar’kova V. M. Somova E. Yu. Sazhina 《Russian Journal of Nondestructive Testing》2011,47(2):89-95
The possibility of testing the hardness of quenched and tempered medium-carbon steels using their magnetic properties is studied.
It is shown that the two-parameter method should be applied for the reliable estimation of the hardness. The coercive return
magnetization (induction) and the coercive force must be used as the basic and subsidiary parameters of testing, respectively.
It is established that the content of carbon in steel influences the sensitivity of testing. It is shown that the suggested
magnetic hardness testing method can be practically implemented with the use of the modernized SIMTEST-2.10 system. 相似文献
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本文明确了环境试验设备相对湿度参量的定义,详细分析相对湿度参量的校准条件及校准方法,最后给出校准数据的计算公式,为环境试验设备相对湿度参量的校准和分析提供了合理可行的方法。 相似文献