Based on the understanding of international standard IEC 62271-100 for high-voltage AC circuit-breakers, the authors give some general introduction to the requirements for synthetic making test, in which the stress put on the switching devices and methods (substitute methods) for making test are mainly included.
根据对国际电工委员会(IEC)制定的高压断路器关合试验标准的理解,对相控关合试验的相关要求进行了探讨, 包括试品开关上所加负荷情况以及试验方法和替代试验方法,详细分析了断路器由预击穿燃弧开始的短路关合过程, 引入了绝缘强度下降率及其变化率(即以外施电压波形最大斜率为基准的相对合闸速度),并分析了该变化率取不同值时关合过程中断路器所受的负荷情况(包括预燃弧时间、预燃弧能量及电动力等)及其表现出来的关合性能。
Owing to the relative rarity of engine tests, a complete discussion of proper methods will not be presented.
由于发动机比较少,我们将不去全面地讨论有关试验方法。
Fit results sh ow that the principle and method could be feasible in designing a HTSC cable co nductor.
拟合及有关试验表明,本文的研究原则和方法是可行的。
Discussion on Experimental Design (Part Ⅰ)
关于试验设计有关问题的讨论(Ⅰ)
Some Problems in Tensile Test of Submarine Fiber Optic Cable
海底光缆拉伸试验中有关问题的探讨
It is the intent herein to indicate the accumulation of empirical data.
在这里试图指出与累积试验数据有关的问题。
This paper applies the method of ship model resistance experiment on resting water in ship circles to raft model resistance experiment.
应用船舶界有关船模静水阻力试验的方法,进行木排模型阻力试验。
Effects of Previewing Applicant Test Information on Interview Ratings;
面试前有关被试的心理测验信息对考官面试评价的影响研究
Comparative testing of consumer products and related services--General principles
GB/T16759-1997消费品和有关的服务比较试验总则
No current human clinical trials involve the transplantation of whole organs from animals to humans.
现在仍没有一例关于整体器官移植的临床试验。
Discussion on Some Interrelated Problems of Static Load Experiment of the Manual Bore Cast-in-place Pile
人工挖孔灌注桩静载试验有关问题的探讨
The Experimental Research on Relationship between Effective Calcium and Magnesium Content in Lime-soil and Strength;
石灰土有效钙镁含量与强度关系的试验研究
Vibration Test about Transportation Industry Standards for Mechanical and Electrical Products
交通行业机电产品标准中有关振动试验的探讨
Short-circuit Test of Self-shunt-excitation Generator and Related Parameter Determination
自并励机组发电机短路试验及有关参数测定
Some Technological and Scientific Issues about the Experimental Study of Land Surface Processes in Chinese Loess Plateau(LOPEX)
黄土高原陆面过程试验研究(LOPEX)有关科学问题
Correlation Analysis between Virtual and Real Vibration Test
虚拟振动试验与真实试验相关性分析
And there are some animal studies suggesting that, but there are not good human studies and there are not studies on cardiovascular intima.
现在已有一些动物实验提示有益,但还尚没有人体试验,而且没有关于心血管内膜的研究。
Methods for the Examination of Waters and Associated Materials
《水及相关物料试验方法》
fire detection system test switch
火警探测系统试验开关
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