短路的

The reason is that soonest at the next current zero-crossing the firing pulse of thyristors can be reset.

通常的短路故障电流会大大高于这个倍数，而软启动器的晶闸管本身是没有短路分断能力的。

In analyzing the symmetrical element features of power system, the definition of circulator element and circulator node is developed.

通过对相分量法短路故障处理的分析，以定长度向量方程的多态相分量法为基础，提出了用于处理电力系统短路故障的残量变换法和残压变换法。

This product employs overload protection a blows if the fuse indicates an overload or short-circuit situation if the fuse blows unplug the product from the outlet also unplug any additional strings or products that may be attached to the product replace the fuse as per the user servicing instructions (follow product marking for proper fuse rating),and check the product if the replacement fuse blows a short -circuit may be present and the product should be discarded.

该产品带有超载防护设备保险丝断开就表示超载或短路，如果保险丝断开应该将产品从电源上拨出，应该根据使用服务说明更换保险丝(根据产品标签上的保险丝的额定功率)和检查产品，如果替换保险丝后会断开的话，产品可能出现短路，就将产品断开，对于没有替换保险丝的产品，这点可以省略。

So the actual geometry net of local layout must be extracted to avoid such a misrecognition case as an extra material defect touches two or more neighboring conductors within a same electrical net.

在局部识别导体冗余物缺陷能否引起短路故障时，考虑了实际版图图元的连接关系，消除了冗余物短路同一电连接网络图元的误判断。

Dynamic performances during sudden changes in load are analyzed and simulated. It emphasizes on the processes of three-phase sudden short circuit in machines terminal and self-excitation capacitor switching off. The effect of the instant at which the induction generator is short circuited on the maximum current is showed.

研究了异步发电机定子机端突加和突减对称负载时的暂态过程，着重分析了三相突然短路和自激电容突然断开时电流变化情况，说明了不同突然短路时刻对最大电流的影响。

The metallographic structure of melted mark was observed and metallographic structure with secondary short circuited melted mark and primary short circuited melted mark was found.

利用金相显微镜对火烧熔珠的金相组织进行观察，发现铜导线火烧熔痕在不同温度下经消防射水冷却后，会出现类似一次短路和二次短路熔痕的金相组织。

On the foundation of the analysis,a fault diagnosis method which is an advanced pattern recognition method is proposed and a fault diagnosis system of generator excitation power unit based on virtual instrument is developed.It is proved by experiment that the fault diagnosis system can precisely judge which thirstier goes wrong and get accurate diagnosis result.

发生晶闸管直通故障时，瞬间将造成相电压短路，短路电流使保护电路动作；而发生晶闸管开路故障时(如晶闸管器件门极损坏或触发脉冲丢失等故障)，功率单元仍然工作，但输出励磁电压的脉动增大，平均值降低，这种带病工作导致励磁电压波形产生畸变，从而导致了发电机工作在不稳定状态，同时也加大了对电网的干扰[2]。

According to the fault case,the effect of singe-phase fault and open phase to transformer neutral ins.

结合实例，分析了单相短路和非全相运行时对不接地变压器中性点绝缘的影响，以及各种短路故障时接地变压器的耐热稳定性和耐动稳定性。

Based on the author s experience in adjustment test and the study on the diagram of diagnosis and detection of shortcircuit,the principles of coordination between diagnosing and detecting shortcircuit and automatic reclosing in D.

根据调试经验和对线路短路判別测试电路图的研究，阐述了直流牵引网线路短路判別测试与自动重合闸的配合原理。

ZGR3(XRNT5)-15.5H.V.current-limiting back-up fuse for short-circuit protection of oil-immersed transformer(here-under fuse) is availab-le ailable for H.V. indoor electric system,with rated voltage 1 5.5Kv,rated cu rrent up to 175A, 50Hz a.c..It is used for protecting from short-circuit for power transformer.

ZGR3 (XRNT5)-15.5油浸式变压器短路保护用高压限流后备熔断件适用于交流50Hz，额定电压15.5KV，额定电流至75A的高压户内电力系统，作为电力变压器的短路保护。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。