电网

After successful starting, the control box will control the switch of the ATS to switch electric circuits of power supply.

从电网发生故障到备用机组向用电设备供电的时间为8-12S ，在市电恢复正常后，控制箱控制转换开关再次切换供电电路，恢复由电网供电，同时控制发动机空载运行发动机温度平衡并降低后，自动停机。

Solar energy smooth hot season and the net generates electricity, use body of building housetop, wall or hollowness field to wait for phalanx of laid solar cell namely, be linked together through controller, inverter, transformer and electrified wire netting, make solar cell phalanx and electrified wire netting shunt-wound to user power supply.

太阳能光伏并网发电，即利用建筑屋顶、墙体或空旷场地等铺设太阳电池方阵，并通过控制器、逆变器、变压器和电网相连，使太阳电池方阵和电网并联向用户供电。

With the reform of electric power deepening, the power plants separating from grids and the demand of electric power increasing rapidly, Grid corporations face the more and more pressure of producing and operating. Grid corporations ask the new demand about talented persons, development and management of human resource.

同时，随着电力改革深入、厂网分开以及电力需求的快速增长，电网企业生产经营带来的压力也越来越大，电网企业对人才及人力资源开发与管理提出新的要求。

Considering the generator unit's self-exciting, overvoltage of the no-load circuit in course of power transmission, the structure of network and load distribution situation in the area of Heilongjiang, the whole network is divided into four small systems: JingPo Lake, LianHua factory, FuEr factory and HarBin.

结合&黑启动&机组所在区域的电网结构和负荷分布情况，并考虑机组的自励磁问题和送电过程中空载线路的过电压问题，将整个黑龙江电网划分为4 个小系统，即镜泊湖、莲花厂、富二厂和哈尔滨小系统。

China's China Petroleum and Chemical Corporation, the national electrical network, the petroleum, the Yangtze River industry, the great wild goose sea group, Taiwan model the group, China move, the national well-known craftsman line, China renshou, the Chinese telecommunication, the group, the Shanghai Baoshan Steel Corporation, Chinese Construction bank, south the electrical network, Bank of China, Chinese steam, the Chinese agriculture business, the grain group, five ore groups, the Haire group, on the steam group, east the steam group, the hard project, the ocean shipping, China construct, the hard construction, China Netcom and so on 27 brands qualify, this selected Chinese World Famous Brand Enterprise year business income surpasses 10,000,000,000 US dollars.

中国的中石化、国家电网、中石油、长江实业、鸿海集团、台塑集团、中国移动、中国工行、中国人寿、中国电信、中化集团、上海宝钢、中国建行、南方电网、中国银行、中国一汽、中国农行、中粮集团、五矿集团、海尔集团、上汽集团、东汽集团、中铁工程、远洋运输、中国建筑、中铁建筑、中国网通等27个品牌榜上有名，此次入选的中国世界著名品牌企业年营业收入均超过100亿美元。

In software,we adopt the Goertzel arithmetic to realize FFT,cooperates with other software models such as electric parameter arithmetic model and keyboard program model in realizing all of the design functions.

谐波污染会导致电网损耗的增加，降低用电设备的效率和性能，引起设备的过载，威胁用电安全；无功功率会引起线损和变压器损耗，降低发电机的有功输出，破坏电网供电的稳定。

Through analysis and establishment of thenetWork parameter database, a algorithm of power flow and Var mostoptimiZaion is presented.

通过分析和建立电网参数数据库，研究了电网潮流和无功优化算法。

Along with the development of electric power industry and the scale-up of power network, the structure and operation mode become more and more complex.

随着我国电力工业的发展和电网规模的扩大，电网的结构和运行方式变得越来越复杂。

Although the frequency of geomagnetically induced current caused by geomagnetic storm is very low but not equal to zero, the evaluation error is consequential when DC equivalent model of power network is adopted to evaluate GIC level.

由地磁暴引起的电网地磁感应电流(geomagnetically induced current，GIC)的频率很低，但并不为0，所以采用电网直流等效模型进行GIC水平评估时必然会产生误差。

A Geomagnetic storm is possible to induce geomagnetically induced current and many illeffects in high-voltage power grid. Detail studies about the distribution, amplitude and effects of GIC in power grid are very important.

__ |a 地磁暴在高压电网中产生的地磁感应电流(Geomagnectically-induced current，简称GIC)对电力系统运行可能造成一系列有害影响，深入地研究其在电网中的分布、大小及影响等问题有重要意义。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。