查询词典 fault current

This article deals with the study of series resonance type fault current limiter and the new type solid state fault current limiter.

本文重点研究了串联谐振式限流器和新型固态限流器。

Both the advantages and disadvantages of traditional fault current limiting technology were analyzed. The analysis indicates that development of a new fault current limiter with economical and technological excellence was significant and urgent for present day power grids.

分析了传统故障限流技术的优势和存在的问题，指出研制性能优良、经济合理的新型故障限流器对电网发展具有重要的现实意义和应用价值。

In the transformer differential protection, it is a congenital and difficult problem that cant be avoided how to distinguish the magnetizing inrush current with the internal fault current. It has become the focus studied for many years. The existing transformer protection principles all have certain defects and the main reason lies in inadequate understand of the transformer fault mechanism.

在变压器差动保护中，如何区分励磁涌流与内部故障电流是一个先天性的、不可回避的难题，多年来一直成为研究的热点，而且现有的变压器保护原理也都存在一定的缺陷，其主要原因在于对变压器内部故障的机理认识不够。

Part One Research on Measuring of Resistive Current Passing Through XLPE Cable With Applying AC Voltage: By many tests,It is found that mains frequency is not sensitive to the mechanical fault of power cable main insulation.Accordingly,a new method that the fault of power cable main insulation is measured by measuring the resistance component of leakage current is put forward.

第一部分对XLPE 电力电缆施加工频交流电压时阻性电流的检测研究：通过大量的试验发现工频交流耐压试验对电力电缆主绝缘的机械损伤不灵敏，从而提出了通过检测泄漏电流的阻性分量来检测电力电缆主绝缘缺陷的新方法。

Due to the current, induced by a lightening strike or a fault , flows into the mesh , a potential rise and an influx of circumambient current could induce a major fault .In order to maintain a safe and stable power supply system and to protect workmen and equipments form being damaged.

为使电力系统供电之稳定与安全，变电所接地系统相对重要，而变电所接地系统的主要目的，除了确保人员的安全之外，并须保护机器设备免於受损。

This paper analyses the developing status of existing fault current limiting technology. A topology scheme of resumable and hybrid fault current limiter based on positive temperature coefficient thermistor is proposed.

分析了现有短路电流限制技术的发展现状，提出一种基于正温度系数(positive temperature coefficient，PTC)热敏电阻的可恢复型混合式短路限流装置的拓扑结构。

Fault current greater than the breaking load switching capacity, must ensure that fuse load switch can be dissolved up the rear sub-gates; when the fault current is less than the breaking load switching capacity, ensure the sub-gate and fuse load switch does not move.

故障电流大于负荷开关的开断能力时，必须保证熔断器溶断后负荷开关才能分闸；当故障电流小于负荷开关的开断能力时，保证负荷开关分闸而熔断器不动作。

The appraisal and the finding of current mill condition , the forecasting of conditiontrend ,fault diagnosis 、maintenance strategy arithmetic and decision-making deducingprocess.To enhance software function of equipment management information system, mill condition-based maintenance software aided system is developed,it can save mill condition data into equipment information management platform,through mill software module to analysis sequenced detection data and automaticly give the appraisal of current mill condition , the forecasting of condition trend ,fault diagnosis,maintenance strategy and decision-making suggestion for mill technician as a reference to decide whether tostart mill condition-based maintenance.

在燃煤电厂既有的设备点检和大小修管理信息系统软件平台的基础上，进一步开发磨煤机的状态检修软件支持系统模块，能存储磨煤机的状态点检数据入设备信息管理平台，通过磨煤机状态检修软件支持系统模块对一段时间内的磨煤机点检数据进行处理从而给出磨煤机当前状态的分析与评价，磨煤机状态趋势的预测，磨煤机的故障分析、故障原因查找和解决措施，将最终的维修决策建议提供给磨煤机的专业技术维修人员和管理决策者参考，结合软件分析和人工经验的干预以决定是否开始磨煤机的状态检修。

Detailed discussion about distribution and changes of the current in every rotor bar and end ring, the relationship between the number of broken-bar and fault features in stator current after broken bar fault appearing was shown.

转子断条位置对电机影响很大，过去没有引起人们的重视，该文对此进行深入研究，分析电机转子断条位置与故障特征量之间的关系，转子断条位置与转子导条电流、转子端环电流之间的关系，并总结出其规律，指出哪些位置导条进一步断裂的可能性较大。

Another way to limit I〓 is using fault current limiters , which under normal operation have negligible influence on a power system, but in case of a fault will limit I〓 to several times of the normal current.

限制短路电流的另一方法是在电力系统中加入限流器，它在正常工作状态下对系统无影响，而当发生短路故障时，可以迅速将短路电流限制在额定值的几倍范围内。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。