1、

Analysis and improvement of main power supply transformer efficiency in zhuzhou smeltery

株冶主供动力变压器效率的分析与提高

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2、

In this paper the inverter techniques for photovoltaic power supply are discussed and it is pointed out that the main factors which affect inverting efficiency are transformer consumption, power electronic switching transistor consumption as well as driving circuit consumption, control circuit consumption at light load operation.

本文主要讨论了太阳能逆变器技术要求,指出影响逆变器效率的主要因素是变压器及功率开关管的损耗,驱动电路与控制电路的功耗是影响逆变器低负荷运行效率的重要原因。

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3、

Calculation of Maximum Efficiency and Best Load Factor of Double Column Transformer

双绕组变压器最大效益和最佳负荷率的计算

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4、

first, a model of transformer has been built and analysed to formulate the expression of pulse on the load capacitor, which can demonstrate the influence of major parameters of transfomer on the charging time and efficiency of energy-transmitting.

首先,对空心变压器的理论模型进行了分析,在得到了输出脉冲电压的表达式的基础上分析了变压器各主要参数对脉冲充电时间和充电时能量传输效率的影响;

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5、

It introduces the principle of three-coil transformer structure. It also gives a detail analysis for the operation of single-phased three-coil transformer, especially makes a further discussion for the calculation of efficiency and method of trouble shoot maintenance in the process of operation.

介绍了三线圈变压器构造原理,并对单相三线圈变压器运行作了详细的分析,特别对运行中的效率计算和故障维护方法作了进一步探讨。

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6、

Introduces the structure characteristic, performance and operating efficiency of S11 modulating capacity transformer that can meet the demand of rural area electric network.

文中介绍了可以满足农网要求的S11调容变压器的结构特点和性能及其运行效果。

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7、

based on the advantages of small size, no electromagnetic interference and high efficiency, piezoelectric transformer ( pt) can replace conventional electromagnetic transformer in more and more fields, and it shows broad application prospects.

压电变压器具有重量轻、体积小、无电磁干扰、效率高等突出优点,在越来越多的领域可以取代传统电磁变压器,具有广阔的应用前景。

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8、

the device has changed the procedures in lifting the boiler stiffness bean assemblies of large tower-type boiler, steam drum, large generator stator, main transformer, special large assembled components and heavy large components and it has proved high efficiency and good properties for safety.

液压提升装置使大型塔式锅炉中锅炉刚性梁组件、汽包、大型发电机静子、主变等特大组合件和笨重件的吊装工艺发生了变革,并且效率高、安全性能好。

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9、

the inverter system which is made up of a new type of dc/ dc step up transformer and dc/ ac full bridge transformer has some excellent features, it can achieve high transform efficiency.

新型DC/DC升压变换器和DC/AC全桥式变换器组成的逆变系统具有相对更优良的特性,能实现较高的逆变效率。

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10、

Living water washing is an efficiency depurative technique for electriferous equipment, but the complicated structure of the 220 kV tower model current transformer easily occurred wash flashover, that is the difficult to living wash for the 220 kV electriferous equipment.

带电水冲洗是对电力设备外绝缘净化的有效措施,但由于220kV塔型电流互感器结构特殊,容易发生冲洗闪络,成为开展220kV带电水冲洗的难点。

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