| 1. | Guide for testing medium - voltage metal - enclosed switchgear for internal arcing faults 中压金属外壳开关设备内部跳火故障测试指南 |
| 2. | Guide for testing medium - voltage metal - enclosed switchgear for internal arcing faults 内部闪络故障用中压金属外壳开关装置的试验指南 |
| 3. | Fire accident can arise from low - voltage arc fault , and so it is necessary to detect arc fault 摘要低压故障电弧有引发火灾的危险,所以检测故障电弧是必要的。 |
| 4. | Through studying the principle of dimmer and switch power supply , it was found that in some frequency points , by analyzing the phase of electric voltage and current it can tell if arc faults occur 研究调光灯及开关电源的工作原理可以发现,通过分析回路中电压电流在某些频率点的相位信息,可以有效判别是否发生了故障电弧。 |
| 5. | Combination fuse - switch ( cfs ) unit compartments shall be designed and type - tested for arcing fault containment where the energy level available to the input terminals of the compartment exceeds 1 , 000 , 000 a2 seconds 试译:间隔式组合熔丝开关柜( cfs )的隔室设计应满足,在隔室的输入端子的有效能级超过100万安培秒之处,能进行闪故障包容以及闪故障包容的型式试验。 |
| 6. | As the electric power & electronic technology is used widely in low voltage area , the properties of voltage and current in normal working conditions of electrical appliance closely resemble or mimic the un - normal properties created by the arc fault , so it is difficult to distinguish between normal and un - normal cases 随着电力电子技术在低压领域的广泛应用,一些电器正常工作时的电压电流特性与故障电弧的典型特性相似,给检测工作带来了难度。 |
| 7. | This layout can stop the internal arc fault expansion ; can avoid harmful moisture , small animal and dusty interferences . it also has good perfomiance and high reliability . because the heat cannot transmit to the outside of the bus room , a good operation environment for the low space can be obtained 主母线室置于箱体顶部一个单独的金属封闭的间隔内,并与10kv开关室、仪表室等间隔相互独立,为同类产品首创;这种结构可以防止内部电弧故障的扩大化,避免“火烧联营”事故;防护性能好,防潮、防小动物侵害、防积尘,运行可靠;由于母线室的隔热作用,为下层空间创造了一个较好的运行环境。 |