Besides there is also some alternatives such as an inductance conversion using differential transformer and space curve deformeter and variable resistance pressure transmitter.
除此之外还有利用差动变压器和扰曲线应变计的电感变换方式，以及变电阻式压力变送器。
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。
In this paper the recursive least square algorithm is described and a practical recursive algorithm is used in differential protection of transformer.
本文在分析递推最小二乘算法的基础上，给出了在微机变压器差动保护中采用的实用递推算法。
In the last period, we analyse the calculating Settings of differential protection for main protection of transformer.
在论文的后一阶段，对变压器主保护的整定原则进行了分析研究，并给出了具体的算例。
In practical running, the differential protection of transformer may happen to be tripped in non fault.
实际运行中，变压器差动保护可能在非故障的情况下发生误动。
As a traveling sensor, It has taken the place, in many fields, of non contact differential transformer and precise wire wound potentiometers.
作为一种位移传感器，在许多领域取代了无接触式差动变压器和精密线绕电位器。
This paper introduces theoretical basis and method of measuring transformer differential protection phase by transformer differential circulating current method.
介绍了用差压环流法测量变压器差动保护相位的理论依据及方法。
Inrush identification is always a key problem in power transformer current differential protection.
励磁涌流识别一直是电力变压器差动保护中比较关注的问题。
Furthermore, the digital simulation results and dynamic simulation data indicate that transformer recovery inrush itself cannot result in mal-operation of differential protection.
在此基础上，以数字仿真和动模录波数据分析说明恢复性涌流本身不会造成变压器差动保护误动。
The principle, the design of magnetic circuit and the key technics of the differential transformer type pressure sensor were described.
介绍了差动变压器式压力传感器的工作原理、磁路设计及关键工艺。
A linear differential transformer has three coils.
一个直线差动变压器有三个线圈。
Basing on a more precise model of transformer the author of this dissertation has done some researches on the machinery of the incorrect operation of differential protection for transformer.
本文作者在变压器精确模型的建立及其应用于变压器差动保护不正确动作机理分析做了一定的探讨研究。
Based on the analysis of the differential protection of the double winding transformer, the paper presents a simplified ratio restraint algorithms for the three phase, three winding transformer.
在分析双绕组变压器的差动保护算法的基础上，提出了适用于三相三绕组变压器的比率制动式算法，并对判据进行了简化。
Based on the design process of linear variable differential transformer (LVDT), the expert design system of LVDT is put forward.
在分析差动变压器式位移传感器整个设计流程的基础上，提出开发位移传感器专家设计系统。
The transformation ratio of the original current transformer (CT) on the transformer HV side was so large that a parameter for the differential protection software exceeded its settable scope.
因变压器高压侧的电流互感器选择变比过大，以致超出差动保护软件的参数设置的范围。
Two methods, which are called as a small test-signal injection and the differential transformer, are studied in order to detect the rotor displacement without sensor.
研究了转子位移无传感器检测的两种方法，即小信号注入测试法和差动变压器测试法。
The differential transformer secondary windings are connected in subtractive series so that the output is zero at balance.
差功变压器的次级线圈接成反向串联，以便在平衡时输出为零。
The setting calculation of BCH series transformer differential protection has some features such as minimum marginal condition, easily programming and standardized.
变压器bch系列差动保护整定计算，边界条件最少，易于程序化、标准化。
Dead Angle of differential currents is to be measured when realizing the transformer differential protection based on the dead Angle principle.
在间断角原理变压器差动保护中，需要测量差动电流导数波形的间断角。
It is the existent of magnetizing inrush current in transformer that differs transformer differential protection from differential protection of other main equipments and transmission lines.
由于变压器励磁涌流的存在，使得变压器差动保护有别于其他主设备及线路的差动保护。
So far, the core problem of transformer differential protection is still how to precisely identify the magnetizing inrush current.
迄今，变压器差动保护的核心问题仍然是如何准确识别励磁涌流。
It is essential to distinguish excitation inrush from fault current in transformer differential protection.
变压器差动保护的关键问题是判别变压器差动电流是励磁涌流还是故障电流。
Differential relay is the key protection for power transformer.
差动保护是变压器的主保护。
According to the principle of electrotechnics, how to carry out power differential theory of power transformer is discussed.
从电工学基本原理出发，详细讨论了变压器有功功率差动保护原理如何实现的问题。
A new countermeasure to current transformer (TA) saturation, namely, current polarity comparison method, for differential current protection of transmission line is proposed.
提出了一种适用于输电线路差动保护抗电流互感器(TA)饱和的新方法——电流极性比较法。
On the basis of power differential method, a novel principle of transformer protection using generalized instantaneous power is presented.
在差有功法的基础上，提出一种利用广义瞬时功率实现变压器保护的新原理。
Digital transformer differential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下，差动保护有时会误动。
An integrated-circuit transformer differential relay including secondary and fifth harmonics suppressor is designed.
设计了一种集成电路型具有二次五次谐波制动的变压器差动继电器。
An integrated-circuit transformer differential relay including secondary and fifth harmonics suppressor is designed.
设计了一种集成电路型具有二次五次谐波制动的变压器差动继电器。
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