Question

论文摘要翻译成英文 急急急

电力系统在运行的过程中可能出现各种故障和不正常的运行状态。其中各种类型的短路故障即为最常见同时也是最危险的故障，包括相间短路和接地短路。当单相接地故障发生在中性点直接接地系统中的时候，由于中性点是直接接地的，所以在故障相中会存在很大的短路电流，需要在其系统中装有专用的接地保护，即零序电流保护。按照接地短路时的零序电流出现的大小作为其故障特征量，而变压器的接地方式、单相的自动重合闸以及非全相运行等因素会造成对零序电流保护运行的重要影响，关键时刻需要应用相应的闭锁装置。
在这个设计中，我通过在电力系统中继电保护装置的应用原则进而阐述了电网零序电流保护设计的整定计算。
其设计内容如下所述：首先要对电力系统的网络参数来进行计算，并绘制各序的网络图；之后选择一个合理运行的方式，计算出各母线发生短路故障的时候流经线路的保护装置短路电流，依照所得数据和所选运行的方式来选择最适合的保护相配合；最后对保护进行整定计算和分析，确定好零序电流保护整定值和三相重合闸的选择。
关键词：零序电流保护；三相重合闸；闭锁装置

Answer 1

Power system may be a variety of failures and abnormal operating state in the process of running. In which various types of short-circuit failure is the most common but also the most dangerous faults, including white short-circuit and short circuit to ground. When the single-phase fault occurs in the neutral earthing system, because of the neutral point directly to ground, so there will be a large fault phase short-circuit current is required in their systems equipped with a special ground protection that the zero-sequence current protection. According to the size of the zero-sequence current to ground short circuit fault occurs as its feature quantity, and grounding transformers, automatic reclosing single phase and phase running non other factors will cause a significant impact on the zero-sequence current protection operation, the key moment the need to apply the appropriate locking device.
In this design, I passed the application of the principles of the protection device in the power system and then describes the setting calculation grid zero sequence current protection design.
Its design elements as follows: First the power system network parameters to be calculated and plotted for each sequence network diagram; selecting a reasonable way to run is calculated when each bus protection device short-circuited flows through line short-circuit current, according to the data obtained and the selected run mode to select the most suitable mate protection; and finally the protection setting calculation and analysis, to determine a good zero-sequence current protection setting value and three-phase reclosing choice.

追问

是人工翻译的么

追答

I can help you translate well, with no lies in yourself, if you are visionary words.

Answer 2

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