通过分析发现电力机车空载启动和牵引变空载合闸都会在系统变压器中造成和应涌流。
The sympathetic inrush may occur in the system transformer when no-load electric locomotive or traction transformer is switched, so the protection may be affected.
文中从现有微机保护装置存在的两大问题即软件维护扩展功能和软件的实时性，探讨牵引供电系统变压器保护软件的升级方案。
The paper study on maintenance extension and real-time two aspects of the existing digital protection devices software, and upgrade software of traction power supply transformer protection.
变压器保护系统。
一个变压器的故障就可能带来整个电网系统的崩溃。
One malfunctioning transformer can bring down the whole system.
电力变压器是电力系统中最重要的电气设备之一。
Power transformer is one of the most important equipments in the electric system.
本文所取得的结论对变压器局部放电在线监测系统的设计具有一定的指导意义，其中一些方法经实测数据的验证，可直接用于局部放电在线监测。
Conclusions drew in this thesis can be used to guide the design of on-line monitoring system, some of which, tested by on-site data, can be directly applied in on-line PD monitoring of transformer.
接下来将仅仅对一个系统进行重点介绍，因为对阳极和阴极变压器的控制方法是完全一致的。
The following discussion will focus on only one system since the anode and cathode transformers are controled separately and identically.
能源供应和信号传输需要滑环或接触传播的形式，如旋转变压器或遥测系统的使用。
The energy supply and signal transmission requires the use of slip-rings or contactless forms of transmission, such as rotary transformers or telemetry systems.
泰科热控提供一整套完备的系统，从配电变压器、电伴热控制柜到接线盒、伴热线、尾端、玻璃胶带和警示标签。
Tyco Thermal Controls can provide a complete system from electrical transformer and heat-trace panel to power connections, heating cable, end terminations, glass tape and warning labels.
论述了多磁路调压变压器的特征与工作原理，探讨了其结构与性能，并对与之配套的调压系统做了介绍。
Feature and operation principle of regulation transformer with multi-magnetic circuit. Its design and property are discussed. The self-contained voltage regulation system is introduced.
通过计算和分析表明：变压器中性点接入小电抗对系统的操作过电压基本不会产生影响。
Through deduction and analysis, the conclusion can be made: low reactance at the neutral point of transformer has little effect on the switching over-voltage in power systems.
认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。
The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.
电气表面处理系统由高频发生器，高压变压器和治疗电极。
An Electrical Surface Treatment system consists of high frequency generator, high voltage transformer and treating electrodes.
厂内配电系统由主发电机，主变压器，厂用变压器，柴油发电机和相关的配电设备组成。
The onsite electric power system consists of the main generator, the unit station transformers, the common station service transformer, the diesel generators and the electric distribution system.
西门子供给范围包括电力设备，如中压和高压变压器以及所有高、中、低压配电系统。
The Siemens scope of supply includes power equipment such as medium and high-voltage transformers as well as all the high, medium and low-voltage distribution systems.
电力变压器故障诊断对电力系统的安全经济运行有着十分重要的意义。
The transformer fault diagnosis is very important to the safety and economic operation of power system.
文章介绍了PLC在变压器风冷系统中的应用。
This paper introduces the application of PLC in wind-cooling system of the power transformer.
合理的无功就地补偿和选择变压器容量可以降低损耗，提高系统运行的经济性，是电力需求侧管理的重要内容。
Rational planning of local reactive compensation and transformer capacity is very important for demand side management to reduce power losses and improve the economical power system operation.
变压器是电力系统中重要设备之一，承担着传输和分配电能的重要任务。
It is well known that transformer is one of the main equipments in the power system.
本文分析了原有的DGA故障诊断方法，包括三比值法、人工神经网络法、模糊理论、变压器诊断专家系统、灰色关联算法等。
The article analyses original methods of DGA fault diagnose, include three-ratio method, artificial neural network method, Fuzzy Theory, diagnosing expert system, grey relational algorithm, et.
本文只统计造成变压器必须退出运行的故障，研究这类失效应把变压器看成是不可修复系统，其最主要的指标是失效率。
In the thesis we only count the failure that leads the transformer to quit operation, regarding the transformer as Non-repairable system whose main index is failure rate.
在电力系统中，变压器是实现电压变换、电能传输和分配的关键设备。
Transformer is the key instrument for voltage converting, power transmission and distribution in power system.
本文只统计造成变压器必须退出运行的故障，研究这类失效应把变压器看成是不可修复系统，其最主要的指标是失效率。
The thesis only counts the failure that leads the transformer to quit operation, regarding the transformer as Non-repairable system whose main index is failure rate.
在这种背景下，我们进行了基于计算机的变压器出厂试验系统的研究。
In the background we carried through the research of the transformer's delivery test system based on computer.
油流继电器是大型电力变压器冷却循环系统的重要部件。
The oil flowing relay is the important prot of the cooling system of power transformer.
本文以系统负荷预测结果为前提，针对变压器经济运行优化调度问题展开研究。
In the premise of load forecast results of power system, the paper carries out research on optimizing dispatch for transformer's operation.
针对配电系统电子电力变压器的特点，提出功率开关器件IGBT缓冲电路的设计方法，包括缓冲电路类型的选择及参数的计算方法。
This paper presents the design method of high power IGBT snubbers for electronic power transformer in distribution system, which includes choosing the type of snubbers and parameters calculating.
为了保证电力系统可靠运行，提醒变压器制造厂家提高产品质量。
In order to guarantee electrical power system reliable operation, transformer manufacturer's were remind to improve product quality.
二次配电系统是由降压变压器和满足最终用电设备电压等级的二次电路组成。
The secondary system consists of step-down transformers and secondary circuits at utilization voltage levels.
本文介绍了变压器测试系统的软硬件结构及工作原理。
Thia paper introduces the software and hardware structure and the principle of the transformer testing system.
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