查询词典 function and power

Along with the opening of electricity market at generation side and the implementation of separating power plants from power networks and generation bidding to power network, power plant have been more and more concern about their economic production management.

本课题就是以山西太原第一热电厂的管理控制一体化项目作为背景，针对以上情况，重点研究了为达到利润最大化的目标，各发电公司在电力市场中的两个重要的经济运行方面问题：动态成本分析和负荷的优化调度。

Summarize:Measuring function: three-phase voltage、wire voltage、current、frequency、active power、reactive power、power factor、bi-directional active energy、bi-direction reactive energy parameters etc. The additory functional module can conveniently extend DI/DO、harmonic analyzing etc; RS485 communication port, Modbus-RTU agreement ; Wide LCD screen convenient for viewing.

测量功能：三相电压、线电压、电流、频率、有功功率、无功功率、功率因数、双向有功电度、双向无功电度等，增选功能模块可方便扩充DI/DO，及谐波分析等功能；RS485通信接口，Modbus-RTU协议；大屏幕LCD显示。

This dissertation gives a special research in microcomputer relay protection for power transformer of 110kV or below voltage ratings, which based on widely summarizing the theory of power system relay protection and its advanced trend. After analyzing the working character of the transformer in details and absorbing the advantages in other power transformer protection, a scheme which is fit to power transformer of 110kV or below voltage ratings is put forward.

本文在全面介绍和评述电力系统微机保护原理及其发展趋势的基础上，对电力系统中大量应用的110kV及以下各电压等级的变压器保护进行了专门研究，根据这一类电力变压器的运行特点，吸取以往各种保护方法的长处，提出了这类电力变压器保护方案。

The power system forced oscillation introduced by anharmonic periodic disturbances is then discussed. The effect of complicated pressure pulsation, ballistic pressure pulsation and quasiperiodic pressure pulsation on the stability of power system based on a single machine infinite bus power system and multi-machine power system are analyzed respectively through simulation.

从理论上探讨非简谐周期性扰动下的电力系统强迫振荡，并通过时域仿真分析单机无穷大系统和多机系统中汽轮机复杂压力脉动、准周期压力脉动及冲击性压力脉动对电力系统稳定性的影响。

Through analysis of the characteristics of power flow, transmission efficiency and self-lock of a combined planetary transmission, a design method based on the power design parameter of the bifurcated power of the main branch and the total input power ratio was developed in this paper.

对组合式行星传动的功率流特性、传动效率、自锁条件等进行了分析，提出了以系统主支路功率流大小与输入总功率的比值为功率参数的设计方法，并给出了系统实现功率分流传动和自锁的判别准则。

The calculation of power factor is according to ratios of real power and total power. Lower power factor electric equipment representative have unnecessary busywork and harmonic components.

功率因数值的计算是根据实际消耗功率与视在消耗功率的比值为基准，因此功率因数不佳的电力设备即代表存在著不必要的虚功以及谐波成份。

He thought that not only the central power, but also the village power was controlled by laborers, which caused the Taiping Heavenly Kingdom to be a revolutionary regime, and that the village power had feudality to some extend, and the peasantry was a double class, thus the central power was with feudality to some extend.

他认为，除了中央政权，乡官政权也基本上掌握在劳动群众手里，因而太平天国是农民革命政权，但是，乡官政权带有一定的封建性，农民阶级带有双重性质，使得太平天国政权也带有一定的封建性。

Owing to its small volume, light weight, high efficiency, succinct circuitry, high reliability and great capability of self-equalizing output loads in different circuitries, the Fly-back Converter becomes the optimally topological form of designing auxiliary power supply of high frequency switching power and driving power supply of power switching.

由于反激式变换器不但具有体积小、重量轻、效率高、线路简洁、可靠性高等优点，而且还具有较强的自动均衡各路输出负载的能力，目前反激式变换器的电路拓扑形式已成为人们设计高频开关电源的辅助电源以及设计各种功率开关驱动电源的首选。

This article discusses a single power factor correction flyback switching power supply, greatly reducing the size and weight of power supply to improve the stability of the power and efficiency.

本文讨论了功率因素校正单片反激式开关电源，大大减少电源的体积和重量，提高了电源的稳定性和效率。

Jiujiang power plant is a typical firepower plant in Jiangxi province and center region of China. In the face of Electric power reform on power plant is separated from electric power transmission and price competition, plants extensive planned management mode was inapplicability.

江西省九江发电厂是一个比较典型的以煤炭为主要燃料的火力发电厂，面对"厂网分开、竞价上网"的电力市场化改革，企业原有的粗放型的计划管理模式已难以适应时代的要求。

Bob Eckert has been chairman and chief executive of Mattel for eight years.

美泰董事长兼首席执行官鲍勃·埃克尔特在任已8年。

The outlook for honors and disgraces carries on and surpasses the traditional outlook for honors and disgraces theoretically, and carries on and develops the theory of construction of socialist mora...

社会主义荣辱观的提出在理论上是对传统荣辱观的一次继承和超越，是对社会主义道德建设理论的继承和发展，在实践上有利于形成良好的社会风尚。