1、

Dielectric Analysis of Dialysis Membrane/ Solution System under DC Bias Voltage Application

直流偏压下透折膜/水溶液体系的介电解析

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2、

Increases both the steady state and transient stability limits of the generator with respect to the power system by continuous, fast control of the exciter voltage to match the generator requirements.

通过连续、快速控制励磁机电压以与发电机的要求相匹配来提高发电机对于电力系统的稳态和暂态稳定性限度。

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3、

Exciter Automatic Voltage Adjusting Digital Potentiometer

励磁自动电压整定数字电位器

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4、

The short-circuit phase of KFD-3 loss of strong excitation is found by analyzing the current and voltage phasor as two-phase short circuit on HV side of transformer. The wiring mode of relaying impact exciter is presented.

通过分析变压器高压侧两相短路时的电流、电压相量,得出KFD3失去强励作用的短路相别,分析得出继电强行励磁装置接线方式。

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5、

High voltage frequency conversion speed regulating technology is adopted on the gas exhauster of 80 type coke oven and the modification of the automatic control system for gas collecting main pressure is carried out.

在80型焦炉的鼓风机中采用了高压变频调速技术,并对集气管压力的自动控制系统进行了改造。

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6、

When we calculate the magnetic induction intensity of air-gap and the power system voltage is deviating, the extra loss of rotor is calculated on the basis of it.

以一台水轮发电机为例,给出了水轮发电机电磁场数学模型,计算了电力系统电压发生偏差时气隙内磁感应强度值,在此基础上计算了转子的附加损耗。

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7、

Design of 400kV/ 400A Extra High Voltage Pulse Transformer

400kV/400A超高压脉冲变压器的设计

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8、

Modelling Method for Vibration Signals of High Voltage Circuit Breakers Based on Exponentially Damped Oscillatory Waves

高压断路器振动信号的指数衰减振荡波建模方法

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9、

A New Type of High Voltage Impulse Generator Without Damping Resistance and Charge Resistance

无限流保护电阻及充电电阻的新型冲击高电压发生器

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10、

Meanwhile, the voltage rise caused by resonance in course of adjusting is controlled by series damping resistance.

并且通过串联阻尼电阻以限制调节过程中谐振引起的电压升高。

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11、

Teflon PTFE electret with 300V to 1500V surfact voltage, disinfected by ultraviolet rays, acted on the ACTT 25923 staphylococci aureus with the concentration of 10 4 for 1 to 24 hours, respectively, then we began to observe the bacteriostasis of the electret.

表面电位为-300V~-1500V的Teflon PTFE驻极体,经紫外线消毒后,对浓度为10-4的ACTT25923金黄色葡萄球菌分别作用1~24小时,观察驻极体对该细菌的抑菌作用。

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12、

An ultra-low voltage, low power current reference was presented based on zero temperature coefficient ( ZTC) bias point and temperature compensation.

利用零温度系数偏置点技术和温度补偿技术设计了一个超低压、低功耗的电流基准源。

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13、

The high frequency switch technology of large power is developed successfully by the perfect control of PWM ( Pulse Width Modulation) and ZCC ( Zero Current Control), ZVC ( Zero Voltage Control) in the unit.

通过PWM(脉宽调制)和ZCC(零电流控制)、ZVC(零电压控制)的完整控制,成功开发应用了大功率高频开关技术。

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14、

In this paper, some problems about IGBT's operation characteristics are discussed. A driving mode called zero voltage commutation and zero current commutation ( ZVC/ ZCC) technique with high efficiency and safety is introduced.

对IGBT的工作特性及存在的问题进行了深入探讨,详细介绍了用于提高大功率IGBT电桥的开关效率和安全性的ZVC/ZCC驱动模式。

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15、

Application of ZNR Series Intelligent High-Voltage Inverter in the Circulating Water Pump Energy-Saving Transformation

ZNR系列智能高压变频器在循环水泵节能改造中的应用

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16、

Analysed the key to technical question of low-voltage ZNR.

分析了低压压敏陶瓷工艺技术的关键问题。

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17、

To prevent all turbines disconnection from inducing power impulse to the grid, it is a necessary demand that on-grid wind power generator must possess low voltage ride through ( LVRT) capability.

为防止风电场的脱网对电网造成严重的电力冲击,要求风力发电机组具备一定的低电压穿越能力。

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18、

With the rapid development of wind power generation, wind power makes up a more and more important part in the power system, LVRT ( low voltage ride-through) is increasingly concerned and studied.

随着风电场的迅速增加,风电功率在电力系统中所占比重越来越大,风电场低电压穿越问题也越来越被广泛的关注和研究。

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19、

Currently, the new power grid rules require that wind turbines have low voltage ride through ( LVRT) capacity. When the short-circuit fault occurs, wind turbine not only can grid-connected operation, but also can provide a certain reactive power.

目前,新的电网规则均要求并网风电机组具有一定的低电压穿越能力,当电网发生严重短路故障时,并网风电机组能够不脱网运行,同时可以向电网提供一定的无功功率。

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20、

So the grid department proposed the LVRT ( Low Voltage Ride Through) requirement of wind turbine to keep the stability and safety of grid system in this condition.

因此,在这种情况下,为了维护电力系统运行的稳定性和安全性,电网部门提出了风力发电机组的低电压穿越要求。

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