电力变压器

Frequency AC-DC rectifier first, and then the inverter for AC 50 Hz, the step-up transformer into the local electricity company 11 kV power grid.

变频交流电先整流成直流电，然后逆变为50Hz的交流电，经升压变压器送入当地电力公司的11kV电网。

With the development of domestic power industry, new requirements of large transformer protection are presented.

随着我国电力工业的迅猛发展，对大型变压器保护提出了新的要求。

It is well known that transformer is one of the main equipments in the power system.

变压器是电力系统中重要设备之一，承担着传输和分配电能的重要任务。

So its very significant to evaluate the reliability of transformer to improve the reliability of the power system.

因此，对变压器进行可靠性评估，对提高整个电力系统的可靠性水平有着十分重要的意义。

Is a high-tech enterprise in Henan Province, China Heat Treatment Association, relying on university scientific research strength, the basis of modern power electronics theory, with Zhengzhou University Motorcycle Factory United attachment to the strict requirements of the production process of "X" series new frequency, high frequency, ultrahigh frequency induction heating equipment, the main circuit using IGBT, MOSFET and other new types of power devices, to integrated, modular, as the basic characteristic of independent innovation with new output transformer, equipment greatly enhance the power, energy consumption significantly reduced, the reliability of the maintenance-free development, and by domestic users widely welcomed and has been exported to Southeast Asia and the European Union and many other countries and regions.

郑州科创电子有限公司是河南省高新技术企业、中国热处理协会会员，依托高校科研实力，依据现代电力电子理论，与郑州大学摩托车附件厂联合，以严格的工艺要求生产的"X"系列新型中频、高频、超高频感应加热设备，主电路采用IGBT、MOSFET等新型功率器件，以集成化、模块化为基本特征，配以自主创新的新型输出变压器，设备功率大幅度提升，能耗大幅度降低，可靠性向免维护发展，受到国内用户的广泛欢迎，并已出口到东南亚及欧盟等众多国家和地区。

It is the first batch of passes received by CHINT gas meter in the international market.

2006年10月，220kV变压器和电缆获得意大利国家电力公司的大额订单，这标志着正泰输配电逐渐成为全球输配电领域的主要竞争者之一。

Which cause the maloperation of current differential protection.

随着电力系统的不断发展和进步，对数字式变压器差动保护性能的要求也越来越高。

Multiconductor transmission line model is usually used to analyze this problem, but MTL model can be no avail to the electromagnetic transient simulation program that is usually used in power system.

研究VFTO对变压器的影响通常采用多导体传输线模型，但这种传输线模型无法用电力系统中通用的电磁暂态仿真程序EMTP进行分析。

The isolation for a giant super-high-voltage transformer is a paramountly important problem in the power system.

大型超高压变压器的绝缘问题是电力系统中的重大课题。

The company mainly produces different grades of voltage and high-voltage china bottles ranging from 10 to 500 kilovoltages , sticklike insulators inside or outside houses , different types of china switches , transformers and condenser insulators , and input transformer china equipment .

本公司主要生产10-500千伏各种等级的中、高压线路瓷瓶，户内外棒式绝缘子，各种开关用瓷、变压器、电容瓷套，输变电设备用瓷，是全国电力行业电瓷电器重点制造厂家之一。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。