无功补偿是提高系统运行电压、减小网损、提高系统稳定水平的有效手段。
VAR compensation has been proved an effective measure to reduce electric circuit loss and to increase working-system stable level.
电力系统的无功优化和无功补偿是提高系统运行电压，减小网损，提高系统稳定水平的有效手段。
Reactive power optimization and reactive power compensation in electric power systems are the efficacious means to elevate operation voltage, reduce power loss, and increase the stability level.
常规并联电抗器固定接入超高压输电系统，不能保证各种运行方式下系统输送能力和母线的稳态电压。
Routine shunt reactor fixed on the EHV transmission system can not guarantee the transmission capability and steady state voltage of system under different operation modes.
本程序应用多端口网络方程和故障端口边界方程联立求解的方法，计算电力系统各种多重故障及任意不对称运行的电压和电流。
In this program the voltage and current of simultaneous faults or unbalanced power system are calculated by solving the simultaneous equations of multi-port network and of the fault boundary.
电力变压器是电力系统中用来变换电压的重要电气设备，提高电力变压器运行可靠性是极为重要的。
Power transformer is the important electrical equipment used to transform voltage in the power system, so it is very important to improve the operation reliability of power transformer.
无功功率是电力系统的一个重要运行参数，它的平衡程度直接影响电网电压的稳定程度。
Wattles power is an important parameter in operation of electric power system. Its balancing level directly affects the stability of the voltage of power grid.
论述了中性点绝缘系统中采用的三相防谐振电压互感器的原理与结构，并指出了运行中容易发生的接线错误。
The principle and structure of the resonance-proof three phase voltage transformer used in the neutral insulation system are discussed. The connection errors brought about in operation are presented.
通过联络线的潮流计算，可以分析发电出力和负荷以及网络结构的改变对系统电压质量和安全经济运行的影响。
Through power flow calculation of tie lines, the effects of the changes in generation, load and network structure on the voltage quality and safe and economic operation of the system can be analyzed.
采用将最优潮流与连续潮流相结合的方法解决阻塞问题，并使系统运行在电压安全裕度之内。
An approach to congestion problem is presented, which combines OPF (Optimal Power Flow) and CPF (Continuation Power Flow) and maintains the system operating within voltage security margin.
变电站综合自动化系统技术已经广泛应用于我国各电压等级的变电站的运行中。
Integrated automation system technology of transformer substation has been widely applied in operation of transformer substation of different voltage levels in our country.
配电网无功电源规划能够有效地改善电压水平、降低网损，对系统安全经济运行具有重要意义。
Reactive power supply programming in distribution network can improve voltage and decrease power loss, it is important for the running of systems more safe and economical.
采用通过控制斩波器电压上升斜率以减小电流冲击的基本原理，使机车的机电系统达到运行平稳。
The basic principle of controlling the voltage build-up rate of chopper is adopted to reduce the current impact, which stables the running of mechanical and electrical system of locomotive.
电缆的额定电压应适合电缆所在系统的运行条件。
The rated voltage of cable shall be applicable to system operation condition where the cable lain in.
通过电能质量控制系统与电网间同步运行试验和谐波电压抑制试验，实现了逆变器与电网的同步运行控制以及负载谐波抑制控制。
The experimental results of proposed power quality control system in restraining harmonic voltage and of its synchronous operation with a power system are presented.
电压与系统运行方式的关系。
The relationship between power frequency overvoltage and system operation mode is investigated.
快速求取n - 1网络下各节点电压和各节点电压对任一节点系统运行参数的灵敏度对于N - 1网络下的实时电压稳定监视和分析具有重要意义。
Fast calculating node voltage and sensitivity of node voltage to any system operating parameter is very important to the real time stakeout and analysis of voltage stabilization in a N-1 system.
为了解决嵌入式实时系统如何节省电能的问题，针对具有两种运行状态的微处理器提出了最优的动态电压调节（DV S）算法。
The power consumption in real-time embedded systems can be improved with an optimal dynamic voltage scaling(DVS) algorithm for micro-processors with double scalable voltages.
相对于电力系统的不同运行条件，文中对电压失稳域与同步失稳域进行了比较。
Under different operating conditions, the voltage stability region is compared with that of the synchronism stability.
它被看作那么，它是最重要的是必须制止电子泄漏时，系统运行的是电压依赖，如利用本发电机。
It is seen then, that it is Paramount that electron leakage must be curtailed when the operation of the system is dependant on voltage, such as the generator utilized herein.
在电力系统中，电压问题不仅是一个供电质量问题，而且是关系到系统安全和经济运行的重要问题。
In the power system, the voltage problem is not only a power supply quality problem, and is related to the system safety and economical operation.
相对于电力系统的不同运行条件，文中对电压失稳域与同步失稳域进行了比较。
With different operating conditions, the voltage stability regions are compared with the synchronism stability re-gions.
电力系统无功优化对保证电压质量、降低运行损耗，实现电网的安全经济运行具有重要意义。
Reactive power optimization is of great importance to voltage quality guarantee, power loss minimization and thus security and economic operation of power system.
电压是电能质量的重要指标之一，电压稳定控制是驾驭电力系统安全稳定运行的重要工作之一。
Voltage is one important standard of power quality, steady voltage controlling is one important work of keeping safe and stable running of power system.
无功优化是电力系统电压稳定与经济运行的核心问题，也是提高电力系统电压质量的重要措施。
Var optimization is core problem of voltage stability and economic operation of electric power system, also important measure to improve voltage quality.
定性地分析电力系统正常运行状态和故障后的稳态量时，电压相量图法是十分有用的工具。
The voltage vector diagram is a very useful method that can make a qualitative analysis of the steady values of power system in normal and fault conditions.
对电网进行无功电压优化，是一个既直接影响系统电压质量，又关系到电网经济运行的重要问题。
Reactive power optimization of power network is an important problem which directly influences voltage quality of the system as well as which relates to economical operation of power network.
为了减少电力系统正常运行时电流和电压的不对称性，原则上高压架空线路应采用换位措施。
In order to decrease the asymmetry of current and voltage of the power system, the high voltage transmission lines should be transposed in principle.
使调压过程在宏观上电压按系统运行的需要而改变，而微观上电压波形平滑、连续、无冲击。
The macrocosmic voltage is changed in terms of the demand of system operation, while the waveform of the microcosmic voltage is smooth, continuous and poses no impact.
而电容式分压器属于容性元件，可能与系统中的感性元件形成谐振，出现过电压，危及设备及系统的正常运行。
Also the capacitance divider has the possibility of resonance with inductance component in the system, which can make a heavy over-voltage and endanger the running of equipments and power system.
本系统为确保可靠工作和安全运行，设置了软起动、过电压、过电流和过热等保护环节。
To insure reliable operation and safe motion, the soft start, the overvoltage, overcurrent, and overheating protection are installed at the system.
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