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- voltage directional relay 极向继电器
- DC voltage divider can be used to design lower voltage direct current power. 直流分压器集开关电源和电能变换于一身，可以被用来设计降压型直流电源。
- voltage drop compensation directional relay 压降补偿式定向继电器
- voltage and power directional relay 电压和功率定向继电器
- Recently, a new protection technique is developed based on the time graded overcurrent directional relay [1]. 最近，一种新的保护技术是发展的基础上，时间梯度过压继电器方向继电器[1]。
- Abstract ：The filters are important part of a series of key technologies of High Voltage Direct Current (HVDC) transmission systems. 摘 要 ：在构成高压直流输电系统一系列关键技术中，滤波装置占据十分重要的地位。
- The infrastructure will deliver a High Voltage Direct Current (HVDC) power system connecting the grids of Sardinia and peninsular Italy. 该基础项目将建造一个高压直流（HVDC）电力系统，连接撒丁岛与意大利半岛的电网。
- VSC-HVDC is a new generation high voltage direct current (HVDC) transmission technology which is based on voltage source converter (VSC). 电压源换相高压直流输电(VSC-HVDC)是基于电压源换流器(VSC)的新一代高压直流输电技术。
- VSC-HVDC is a new generation high voltage direct current(HVDC) transmission technology which is based on voltage source converter(VSC) . 电压源换相高压直流输电(VSC-HVDC)是基于电压源换流器(VSC)的新一代高压直流输电技术。
- The HVDC(High Voltage Direct Current) transmission is playing an more and more important role in the national economy of our country. 高压直流输电技术在我国的电力系统中发挥着越来越重要的作用;
- An entire monitor system is designed for the active DC filter used in High Voltage Direct Current(HVDC) lines based on Labview,a developing tool of virtual instrument. 针对高压直流(High Voltage Direct Current,简称HVDC)线路上的混合有源直流滤波器系统,利用虚拟仪器软件开发平台Labview设计了一套完整的监测系统。
- The design of filtering equipments at dc side of the converter substations is relative to the security and economy of the high voltage direct current (HVDC) transmission system. 换流站直流滤波装置的设计关系到高压直流输电系统的安全与经济性。
- High voltage direct current (HVDC) transmission systems, which are fit for transmission electric power in long distance and large capability, can be widely applied in our country. 适合于远距离、大容量输送电力的高压直流输电技术(HVDC)在我国大有用武之地。
- Based on a set of properly selected base values,a per-unit model for voltage source converter (VSC) based high voltage direct current (HVDC) (VSC-HVDC) is developed. 建立了基于电压源换流器(VSC)的高压直流(HVDC)(VSC-HVDC)输电系统的标幺值数学模型。
- Protection for these isolated systems has been a relatively simple task, which is carried out using over current directional relays with selectivity. 采用具有选择性的过电流方向继电器,对这种相互分隔直流系统的保护相对就简单。
- induction disc type directional relay 感应圆盘式定向继电器
- induction type power directional relay 感应式功率定向继电器
- electronic valve type power directional relay 电子管功率定向继电器,电子管式功率定向继电器
- Its voltage has not been exceeded. 它的电压没有超过。
