| 1. | Lessons caused by secondary side two point grounding voltage transformer
电压互感器二次侧两点接地引发的事故教训 |
| 2. | The steady state saturation and transient state saturation of the current transformer are theoretically analyzed and simutated under different burder at secondary side
针对二次侧不同的负载，对电流互感器的稳态饱和与暂态饱和做出理论分析和仿真。 |
| 3. | The water then passes through steam generators to deliver heat to the secondary circuit . the steam generator produces steam on the secondary side to drive the turbine and generator
产生的热能，然后流入蒸汽发生器，通过热交换，在二回路产生蒸汽，以推动涡轮发电机，把热能转化为电力。 |
| 4. | The simulation models of balance traction transformer with two connection symbols are established . the operating state of transformer with symmetric and unsymmetric loads in secondary side is analyzed
摘要构建了两种联结平衡牵引变压器的仿真模型，分析了二次侧对称和非对称负载时变压器的运行状态。 |
| 5. | In this thesis , the tradition phase - shift full - bridge zvs dc / dc converter are analyzed , and then a new dc / dc full - bridge converter employing switches clamping in secondary side of transformer is proposed , and the converter employing saturable inductor clamping are studied , and zvs ( zero - voltage - switching ) can be easily achieve by experiment validate
本文分析了一些传统的移相全桥软开关变换器，提出了开关管箝位dc dc全桥变换器拓扑方案，并对饱和电感器箝位dc dc全桥变换器进行了研究，并进行实验验证，从而解决了开关管的零电压开关问题。 |
| 6. | Impedance - matching balanced traction transformers ( balanced transformers in this paper for short ) are step - down transformers , they transfer symmetrical three phase voltage in primary side to perpendicular two phase voltage in secondary side . they are different from any other transformers , so their short - circuit current analysis and short - circuit test method must be taken into special account
阻抗匹配平衡牵引变压器(本文中简称平衡变压器)是一种将一次侧三相对称电压变换为二次侧二相垂直电压的降压变压器，它不同于已有的任何一种变压器，短路电流的分析计算和短路试验必须予以重新研究。 |
| 7. | The thesis analyses the effect of phase shift control and the utilization of the transformers primary sides saturable inductor to the transformers secondary sides voltage duty cycle , and basic on the buck converter s small signal ac model the converter s model is deserved , and infers control to output transfer function
论文通过分析移相控制方式和高频变压器一次侧的饱和电感对高频变压器二次侧方波电压占空比的影响，在buck变换器小型号模型的基础上建立了带饱和电感的移相控制零电压开关全桥变换器的小信号模型，推导出控制到输出的小信号传递函数。 |
| 8. | The break was assumed to be a single tube double - ended and three - tube double - ended shear break . the diameter of the break orifice is 0 . 876mm and 1 . 518mm respectively . the characteristic responses of main thermal - hydraulic parameters , such as primary pressure , secondary pressure , break flow rate , pressurizer level , secondary side level of steam generator and so on , were presented in this thesis
试验再现了核电厂蒸汽发生器单根传热管双端断裂事故和三根传热管双端断裂事故发生后的热工水力现象，给出了事故过程中一次系统压力、二次系统压力、破口流量、蒸汽发生器二次侧水位、稳压器水位、元件表面温度等主要参数的瞬态响应。 |
| 9. | Two kinds of common used snubber circuits are studied through simulation and experiment . it is pointed out that the rcd snubber has less power loss . increasing the turn ratio of transformer is helpful for the energy , which is stored in the primary side of transformer , to be transferred to the secondary side
通过实验和仿真，对比研究了电路中周波变换器的两种常用的缓冲电路，指出采用rcd缓冲电路损耗更小；提高变压器匝比有利于减小铁芯储能的回馈，提高逆变器变换效率，但它同时也增加了副边功率管的电压应力，必须综合两方面确定合理的匝比。 |
