数字化变电站由于采用了电子互感器和智能开关，因此有必要研究新的电压切换方式。
Because of adopting electronics transformers and intelligence switches in digital substation, it is necessary to study a new method of voltage switching.
在过程层，对通信规约的选择、跳闸方式的选择、电子互感器安装等方面的问题进行了讨论。
In the process level, issues such as communication protocol selection, tripping manner selection, electronic transformer installation are discussed.
电力计量直接的对象是电子互感器，IEC标准统一规定了电子互感器的两种输出方式：数字瞬时值序列和模拟电压信号。
The direct object of power metering is electronic transformer. From IEC standards, electronic transformer has two kinds of output: digital signals and analog signals.
文中介绍了ADS8344的主要特点，给出了其在电子式互感器高压侧数据处理系统中与TMS320LC545的接口设计。
The main characteristics of ADS8344is introduced, and the interface design between ADS8344and TMS320LC545in signal process system of electronic transformer's high-voltage side is given.
利用电子补偿方法，采用运算放大器和晶体管研制成了高精度、小变比电流互感器误差补偿装置。
Based on electronic compensation, the error compensation device used in high precision and small ratio current transformers is developed with operational amplifiers and transistors.
从中得到了一些有益结论，可进一步改善积分环节，提高电子电流互感器的测量精度。
Some beneficial conclusions are gained, which can improve the integral circuit further, the measurement accuracy of electronic current transducers is improved?
基于石英晶体的逆压电效应，研制出一种双模干涉式的电子电压互感器。
Based on the converse piezoelectric effect of quartz, a novel dual-mode interferometric electronic voltage transformer was presented.
基于石英晶体的逆压电效应，研制出一种双模干涉式的电子电压互感器。
Based on the converse piezoelectric effect of quartz, a novel dual-mode interferometric electronic voltage transformer is presented.
电力系统对电压的测量主要采用电磁式电压互感器，需进行二次变压，才能将电网上的信号变为电子测量装置可用的信号。
The voltage transformer used in power system usually adopts electromagnetic configuration whose output signal can't be directly used by electronic apparatus without further transformation.
介绍了OET700系列电子式互感器的结构与性能及其试验结果和在电力系统中的试运行情况。
The structure and characteristic of OET700 series electronic instrument transformer are introduced. Its test results and operation in electric system are presented.
加快了电子式电流互感器的实用化进程。
The new current transducer will accelerate the practical process of electronic current transducer.
为了提高用于小电流测量的电子式电流互感器的精度，必须对传感头进行优化，主要解决传感头的相位补偿问题。
In order to improve the precision of electric current transducer used to measure small current, the sensing head must be optimized, mainly to resolve difficulty of phase compensation for sensing head.
电子式互感器的二次输出分为数字输出和模拟输出两种。
The secondary output of electronic instrument transformers divides into digital output and analog output.
根据电子式互感器的信号传输原理，提出了一套相位补偿方法。
A set of phase compensation methods based on the signal transfer principle of electronic transformer is presented.
以IEC标准为基础，讨论了电子式互感器的结构体系和电子式互感器与数字变电站的关系。
Based on the IEC standards, some concepts of electronic instrument transformers are discussed including their structures and the logical relationship with digital substations.
提出一种新型电子式电压互感器，主要由电压-电流变换元件和弱电流检测处理装置组成。
An electronic voltage transformer is developed, which mainly consists of a voltage-to-current converter and a weak-current measuring and processing device.
同模拟积分器相比，数字积分器具有更高的精度和稳定性，更适用于电子式互感器。
Digital integrators allowing for better accuracy and higher stability are more adequate for electronic current transducer than analog ones.
有源电子式互感器的数据采集电路处于高压侧，对电路的设计提出了特殊的要求。
The data sampling system of active electronic transducers is at the high potential side, there is a demand for special circuit design.
提出了一种新的有源电子式电流互感器的高压侧电路设计方案。
A new design scheme of circuit design for high voltage side of active electronic current transducer is proposed.
实验结果表明，该接口能很好地完成电子式互感器与继电保护装置之间的通讯功能。
The result indicates that interface scheme has good function of communication between the electrical transducer and protective relay devices.
介绍了一种新型的虚拟互感器校验仪，它采用相位差校正法解决了校验电子式互感器的问题。
A new virtual calibrator for instrument transformer is presented. A phase difference correction method is applicable to correct electronic instrument transformer.
分析比较了电容式电压互感器和电子式电压互感器的特点及原理，提出一种新型的数码光纤电压互感器。
The principles and characteristics of capacitor potential transformer and electronic potential transformer are analyzed and compared. A new digital optical fibre potential transformer is presented.
针对基于电容分压原理的电子式电压互感器的相位误差，提出了相位补偿方案。
Aiming at the phase error of the electronic voltage transformer (EVT) with capacitive divider, a phase compensation scheme was proposed.
介绍了电子电流互感器的分类与全光纤型电流互感器的基本工作原理。
The classification of current transformers and the principle of all-fiber optical current transformers are introduced.
这种新型电流比较仪实际上包含了自平衡直流比较仪和电子补偿式交流电流互感器的所有功能。
The improved AC/DC comparator consists of a self balancing DC comparator and an electronically compensated AC transformer.
介绍了电子式电流互感器的“唤醒电流”和“唤醒时间”概念，阐述了在实际应用中降低唤醒电流以及缩短唤醒时间的物理意义。
This paper introduces the concept of "wake up current" and "wake up time" and the physical meaning of reducing wake up current and wake up time in application of electric power net.
而RTDS中尚缺乏电子式互感器模型。
And still there is no model of electronic transducer in RTDS.
该样机对测量通道和保护通道合并传输，达到了测量级0.2的高精度，使电子式电流互感器的理论优势得以工程体现。
The sample machine transmits test channel and protection one simultaneously and reaches high precision of test level 0.2, which implements ECT's theoretic advantages in engineering.
该相位补偿技术已成功应用于电子式电压互感器。
This phase compensation technology has been used successfully in EVT.
该相位补偿技术已成功应用于电子式电压互感器。
This phase compensation technology has been used successfully in EVT.
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