| 1. | Calculation and analysis of traction power grade for qingzang railway line
青藏铁路牵引动力功率等级的计算与分析 |
| 2. | Peak power class
峰值功率等级移动台的 |
| 3. | Dimensions and output series for rotating electrical machines . part 1 : frame numbers 56 to 400 and flange numbers 55 to 1080
旋转电机尺寸和输出功率等级第1部分：机座号56 400和凸缘号55 1080 |
| 4. | Dimensions and output series for rotating electrical machines . part 3 : samll built - in motors flange numbers bf10 to bf50
旋转电机尺寸和输出功率等级第3部分：小功率装入式电动机凸缘号bf10 bf50 |
| 5. | Dimensions and output series for rotating electrical machines - part 2 : frame numbers 355 to 1000 and flange number 1180 to 2360 iec 60072 - 2 : 1990
旋转电机的尺寸及功率等级.第2部分:机座号: 355 1000 |
| 6. | Dimensions and output series for rotating electrical machines . part 2 : frame numbers 355 to 1000 and flange numbers 1180 to 2360
旋转电机尺寸和输出功率等级第2部分：机座号355 1000和凸缘号1180 2360 |
| 7. | Measurement of airborne noise from hydraulic fluid power systems and components - simplified method of determining sound power levels from pumps using an anechoic chamber
液压系统和部件气动噪音测量.第5部分:使消声室测定液压泵声功率等级的简易方法 |
| 8. | As for the tv transmitter of uhf of which the power grade is above 10kw , the valve power amplifier such as the electron tube , klystron and iot are widely adopted in high - frequency linear power amplifier
功率等级在10kw以上的uhf (特高频)电视发射机，其高频线性功率放大器普遍采用电子管、速调管、感应输出管( iot )等电真空管放大器件。 |
| 9. | The following is the main works and conclusions of this thesis . the novel upfc needs high power rate because it is generally used in high voltage transmission lines . after studied high - power converters and the literatures of upfc , the main circuit topology of novel upfc base on diode - clamping multilevel inverter is presented and the principle of using novel upfc to eliminate zero sequence and negative sequence currents is analyzed
本文所做的主要工作及得出的主要结论如下：由于upfc一般用于高压输电线，其功率等级要求很高，在综合研究大功率变换器和upfc现有文献的基础上，提出了基于二极管箝位多电平变换器的新型upfc的主电路拓扑，分析了用其来滤出高压输电线非全相运行时所产生的零序和负序电流的原理。 |
| 10. | Y series has the advantages of high efficiency , energy saving , fine operation performance , small vibration , low noise , long service life , high reliablility , convenient maintenance , big breakaway tor que , fixing measurement and power grade completely conform to iec standard . it enploys grade b insulation , ip44 class for shell protection and ic411 cooling mode
系列电动机具有高效、节能、性能好、振动小、噪声低、寿命长、可靠性高、维护方便、起动转矩大等优点。安装尺寸和功率等级完全符合iec标准。采用b级绝缘、外壳防护等级为ip44 ，冷却方式ic411 。 |
