All the switches are ZVS in the DC transformer, so the efficiency of the DC transformer and the power density are all high.
此外直流变压器还具有易于实现ZVS开关、功率密度高等优点。
The DC sensor based on magnetic potential self-balance and feed-back compensation is brought forward based on the research of basic principles about traditional DC transformer and magnetic magnifier.
磁势自平衡回馈补偿式直流传感器是在传统直流互感器、双向磁放大器基本原理的基础上设计出的一种新型的直流大电流传感器。
I developed a dedicated anti-Meter DC current transformer has been exported to the United States, Italy and other countries.
我公司研制的电表专用抗直流电流互感器已远销美国、意大利等国家。
For dependability, security of the power plant and transformer substation with DC system, offer effective measuring and maintenance means.
为发电厂和变电站直流系统的可靠性、安全性，提供有效的检测和维护的手段。
Its software is designed to calculate the running parameters of the AC drive system, including transformer, quadrant rectifier, DC circuit, inverter, AC motor and train load.
系统采用软件方式实时计算交流传动系统的运行参数，包括变压器、四象限整流器、直流中间回路、逆变器、电机及负载。
The paper introduces the saturable magnetic circuit method to measure the DC resistance of low voltage winding of large-size transformer with a practical application.
介绍了一例用助磁法测量大型变压器低压侧直流电阻的接线、仪器、测试过程和测试结果，讨论了助磁法运用于实际应注意的一些问题。
The cause of the DC bias of the main transformer in the full bridge inverter has been analyzed.
分析了全桥逆变器功率变压器产生直流偏磁的机理；
This lack of static, DC offset current in the output transformer means that the core can be made smaller, because it requires no air gap to prevent core saturation from the static DC offset current.
这种缺乏静态，直流偏移电流输出变压器的核心手段，可更小，因为它不需要空气间隙，以防止核心饱和从静态直流偏移电流。
Firstly, the reasons of DC magnetic bias on transformer are studied.
首先，本文介绍了产生变压器直流偏磁的原因。
The structure and operation principle of DC motor, AC motor, control motor and transformer are introduced in this course.
本课程主要介绍直流电动机、交流电动机、控制电机和变压器的基本结构、工作原理；
Since the DC current on each side is the same, the effective DC in the transformer core is cancelled, so there is no need to provide for a large DC component.
因为两臂的直流电路相等而方向相反，所以在变压器铁心中有效直流磁通是互相抵消的，所以不再需要巨大的直流元件。
According to the analysis results, the permission criteria of transformer DC magnetic bias is discussed and supplies reference for engineering practice and theoretical research.
最终通过以上结果的分析初步探讨了本文所计算的变压器允许直流偏磁的准则，为工程实践和进一步的理论研究提供了参考。
Because leakage inductance value of rectiformer used in DC EAF is larger than common power transformer, the rectifier has longer commutation time.
直流电弧炉用整流变压器漏抗值设计较一般电力变压器大，整流器换相时间延长。
The improved AC/DC comparator consists of a self balancing DC comparator and an electronically compensated AC transformer.
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 effect of DC earthed pol current on the neutral earthed transformer is analysed. The methods of reducing THD DC current which flows into transformer windings are introduced.
分析了直流接地极电流对中性点接地变压器的影响，介绍了减小流入该变压器绕组直流电流的措施。
So it is necessary to take effective measures to control the DC current through the transformer within the allowable range according the concrete co…
因此，应根据实际情况，采取有针对性的措施，使流过变压器的直流电流控制在可允许的范围内。
The control system of new type DC transmission system adopting novel transformer and its filter device are mainly studied and designed in this thesis.
本论文就采用新型换流变压器的新型直流输电换流控制系统进行了研究与设计。
The influence of the DC capacitor value. transformer reactance and controller parameters on power system stability is analyzed.
系统地分析了ASVG直流侧电容量、变压器电抗值以及控制参数对电力系统稳定性的影响；
Electric power is output to the oil tube, which is connected with the bushing by the oil bushing connecter on the bottom of the oil tube, via a 3-phase transformer after AC-DC-AC inverse circuit.
电能由三相配电变压器经AC DC AC逆变电路输出传送到油管，经油管下部的油套管接触器连接到套管，形成一个完整的回路。
While DC current transformer is questionable in locomotive application, the Hall-generator current sensor, on the other hand, appears to be advanced in performance.
文章概述了直流互感器在机车上应用所存在的问题及霍尔电流传感器的优越性能；
At last, the temperature-rise of transformer is calculated using the temperature field method and the influence on DC magnetic bias to temperature-rise is analyzed.
最后，采用温度场分析方法对变压器在不同直流偏磁量下的温升进行求解，并分析了直流偏磁对变压器温升的影响。
Since there is no unified standard for DC current through the neutral point of transformer in China, it is necessary to define and enforce a unified one as soon as possible.
鉴于目前国内对于变压器中性点直流电流还没有一个统一的标准，有必要尽快加以制订和实施。
The modified types will not be equipped with commutation transformer and the three-phase alternating current power supply directly acquires DC voltage through bridge type rectifier.
改进型不配整流变压器，将三相交流电源直接由桥式整流获得直流电压。
Encyclopedia is divided into 5 chapters, the main contents include transformer, dc motors, three-phase asynchronous motor, single phase asynchronous motor and special motor.
全书共分5章，主要内容包括变压器、直流电机、三相异步电动机、单相异步电动机和特种电机。
An accurate, quick and automatic measurement scheme is presented to solve the key problems in measuring DC resistance of main transformer windings.
针对牵引变压器绕组的直流电阻测量中的一些关键技术问题，提出了精确、快速、自动的测量方案。
MW DC arc furnace uses the current 2-transformer rectifier bridge thyristor controlled by adjusting the angle trigger to compose 24 pulse wave rectifier circuit.
MW直流电弧的电流控制采用2台整流变压器控制，通过调节晶闸管桥触发角构成24脉波整流电路。
MW DC arc furnace uses the current 2-transformer rectifier bridge thyristor controlled by adjusting the angle trigger to compose 24 pulse wave rectifier circuit.
MW直流电弧的电流控制采用2台整流变压器控制，通过调节晶闸管桥触发角构成24脉波整流电路。
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