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。
All the switches are ZVS in the DC transformer, so the efficiency of the DC transformer and the power density are all high.
另外宣布的是，ABB还被选中为两座换流站提供800千伏特高压直流变压器设备。
As separately announced, ABB has also been selected to supply the 800 kilovolt (kV) UHVDC transformers for both converter stations.
800千伏特高压直流变压器是实现远距离、大容量输电的特高压输电线路的关键设备。
The 800 kV UHVDC transformer is a key component of ultrahigh-voltage power links that deliver large amounts of electricity over very long distances.
高压直流试验是换流变压器的例行试验之一。
HVDC test is one of routine tests on the converter transformer.
直流牵引变电所主要由整流变压器和硅整流器构成。
DC traction substation are composed of transformer and silicon 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.
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 control system of new type DC transmission system adopting novel transformer and its filter device are mainly studied and designed in this thesis.
并通过高压换流变压器试验，说明如材料、环境等条件对直流工作的影响。
And through the tests of HVDC converter transformer, the influence of material and environment, etc. on operation of HVDC was explained.
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。
Because leakage inductance value of rectiformer used in DC EAF is larger than common power transformer, the rectifier has longer commutation time.
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。
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.
高压直流换流器和换流变压器的饱和特性之间的相互作用可以导致换流变压器铁心饱和不稳定现象的发生。
The interaction of HVDC converter with the saturation characteristic of converter transformer can lead to core saturation instability of converter transformer.
针对新型高压直流输电模拟系统12脉波整流器与逆变器产生的谐波，设计了基于新型换流变压器的无源滤波器系统。
In view of harmonic which generated from the new-type HVDC analog system 12-pulse wave rectifiers and the inverter, designed passive filters system based on the new-type converter transformer.
末端加压法对高压直流输电系统所用换流变压器阀侧套管预防性试验，特别是将来特高压直流换流变压器阀侧套管预防性试验具有较高的实用价值。
Applying voltage into the bushing tap method for preventive test of converter transformer value side bushing in HVDC, especially in the future for UHV, will have better practical value.
在此基础上确定了溪洛渡—株洲特高压直流输电工程换流变压器的额定功率、电压、电流和分接头的变化范围等参数。
After illustrating the operation theory of six pulse converter, author gives the calculating method of UHVDC transmission parameters such as operating power, voltage, current and tap changer range.
HVDC系统以大地回路方式单极运行时，其大地回路直流会给交流变压器带来一些问题，例如，变压器噪音明显增大，过热现象，甚至引起变压器损坏。
When a HVDC system operates in ground-return mode, some problems such as noise rising significantly, overheating etc. occur in AC transformers, or even some transformers would be damaged.
HVDC系统以大地回路方式单极运行时，其大地回路直流会给交流变压器带来一些问题，例如，变压器噪音明显增大，过热现象，甚至引起变压器损坏。
When a HVDC system operates in ground-return mode, some problems such as noise rising significantly, overheating etc. occur in AC transformers, or even some transformers would be damaged.
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