In this paper, a method extracting cores vibration signal with operating transformer at on-load condition was introduced.
文中提出了一种不空载运行变压器取得变压器铁心振动信号基频成分的负载电流法。
In this paper, the principle of core vibration was described, and a method extracting cores vibration signal without operating transformer at no load condition was introduced.
本文介绍了变压器铁心振动的起因，提出了一种不必空载运行变压器即可取得变压器铁心振动信号基频成分的方法。
The uses, operating principle and main requirements of the current transformer for differential relay with high impedance were described.
叙述了高阻差动继电器用电流互感器的用途、工作原理和主要要求。
Transformer oil, white oil and aluminium foil rolling oil could also be produced with selected feedstock at certain operating severity of dewaxing.
选择不同的原料，调整异构脱蜡操作的苛刻度，经调合可生产变压器油、白油和铝箔轧制油等。
Operating voltage can seriously influence the over-voltage, arising from the transformer under the lightning impulse .
工作电压会严重地影响变压器遭受雷击时产生的过电压。
Welding principle and its operating process of flat copper wire in large transformer windings are introduced.
介绍了大型变压器绕组用扁铜导线的焊接原理及其操作工艺。
As the key apparatus in electric power system, the operating reliability of large power transformer has deep influences on security and stability of power systems.
大型电力变压器作为电力系统的枢纽设备，其运行可靠性直接关系到电力系统的安全与稳定。
Modeling and faults calculation in the new converter transformer are the bases of research on operating characteristics, relay protection and fault diagnosis of the new converter transformer.
新型换流变压器建模和故障计算是新型换流变压器运行特性研究及继电保护、故障诊断的基础。
Therefore, it is of great realistic significance to study the fault diagnosis technology of transformer and to increase the operating and maintaining level of transformer.
因此，研究变压器故障诊断技术，提高变压器的运行维护水平，具有重要的现实意义。
The validity check of zero-sequence operating direction for transformer directional over-current protection is also essential.
另外还需要进行变压器零序方向过电流保护动作方向正确性的检查。
Simply introduced the operating of agricultural electric power network transformer normal breakdown and the treatment helping us improve THD maintenance level of the transformer.
本文简要介绍了农配电变压器的投运及日常运行中的常见故障及处理办法，帮助大家提高变压器的运行维护水平。
This paper describes internal quality problems of the oil-immersed current transformer and puts forward strategies guarding against operating errors of the oil-immersed current transformer.
简述油浸式电流互感器内部质量问题，提出了防止油浸式电流互感器运行事故的对策。
Power transformer is one of the most important electrical equipments in the electric system. Its operating state attaches importance to system's safety directly.
电力变压器是电力系统中最重要的电气设备之一，其运行状态直接影响系统的安全性水平。
In this paper, a design method and the operating principles of pulse transformer in forward converter are presented, and some problems to be considered are pointed.
该文介绍了单端正激式脉冲变压器的工作原理和设计方法，指出了在设计时应注意的问题。
It is an important issue to find the potential faults of the transformer, to keep it operating safely, and to improve the reliability of power supply.
尽可能早的发现变压器的内部潜伏性故障，保证变压器的运行安全，是提高供电可靠性一个重要的现实不足。
It is an important issue for electrical department to find the potential faults of the transformer, to keep it operating safely, and to improve the reliability of power supply.
及时发现变压器的潜伏性故障，保证变压器的安全运行，从而提高供电的可靠性，是电力部门关注的一个重要不足。
Traditional off-line test can not present the real status of transformer's additional loss in operating station, so it can not guarantee transformer working with high efficiency.
传统离线试验方法不能完全反映变压器运行条件下的附加损耗状态，因而并不能确保其工作的高效性，电能浪费仍有可能发生。
The usual operating troubles of transformer are analyzed carefully with two examples. It also points out the reasons causing trouble and judge method.
对变压器常见的运行故障，例举两例进行了细致的理论分析，找出了故障产生的原因和判断方法。
Firstly, this paper shows a method to detective the open circuit loss and the load loss of the there-phase power transformer online by operating the real-time voltage and current of the transformer.
首先，本文对三相电力变压器空载损耗、负载损耗在线检测理论进行了讨论和分析。
The procedures can realize economical life assessment of transformer in-service, renew decision, economic operation way analyze and operating characteristic analysis, and so on;
在功能方面，系统可实现在役变压器经济寿命评估、更新决策、经济运行方式分析以及运行特性分析等各种功能；
In the article are analyzed the operating principle and the features for the welding transformer with the semi-opened winding and the ladder-shaped moving shunt.
本文对梯形动铁分磁半开式弧焊变压器的工作原理及特点进行了分析。
In accordance with the repair of the small-sized ring transformer, the authors summarize their experience in operating repairs.
针对小型环形变压器的修复，介绍自己在日常维修工作中的体会。
Under normal operating conditions, the main generators supply electrical power through distribution buses to the main step-up transformers and the unit station service transformer;
正常运行时，发电机发出电能至配电母线，然后通过主变压器和厂用变；
The operating principle and the structural features of the newly developed opposite-V type of A. C. arc welding transformer are analyzed in this paper.
本文分析了当前出现的三相输入单相输出式交流弧焊变压器的工作原理及结构特点。
S. are beginning to turn to transformer technologies to improve distribution reliability and efficiency as well as customer service and operating costs.
美国的公共事业经营者为了改善配电的可靠性与效率，客户服务，运用成本开始关注变压器技术。
S. are beginning to turn to transformer technologies to improve distribution reliability and efficiency as well as customer service and operating costs.
美国的公共事业经营者为了改善配电的可靠性与效率，客户服务，运用成本开始关注变压器技术。
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