涉及电气的英语作文【一】
2.1减少电能的传输损耗
通常情况下电能在传输的.过程中都会产生一定的损耗，原因是导线上有电阻存在，会产生有功功率损耗。但是，线路上的电流是一定的，不能改变，能够改变的只有导线上的电阻，为了使电能在线路上的传输损耗减少，降低导线的电阻是最有效的方式。大家都知道，导线电阻的大小与导线的截面积、电导、长度有关，且与导线的截面积成反比，与电导、长度成正比。因此，要想改变导线的电阻，需要从这几个方面入手：一是在选择导线的时候应该电导率相对较小的材质，从而有效减少了电能的传输损耗；二是在进行电网设计时，布线的过程中要尽量让导线走直路，防止弯路过多，从而有效减少了导线的长度，减少电能在电路上的损失；三是变压器位置的选择要接近负荷中心，旨在减少供电距离；四是如果各方面的条件允许，尽可能的增大导线的横截面积，有效减少了导线的电阻，从而减少了电能的传输损耗，实现节能的目的。
2.2变压器的选择
在进行变压器的选择时首先要选用节能型的变压器，从而有效降低变压器的有功功率损耗；其次为了保持三相电的电流平衡，降低本体损耗，应该采取一些必要的手段和措施，例如将单相用电器分接在三相电源上、三相四线制供电等，从而有效保证了负荷的平衡。
2.3无功补偿
对于电气自动化系统而言，在供配电设备中无功功率占有很大的比重，增加了线路损耗的同时也对电网的电压造成不利影响，从而降低了电能质量，对电网的经济运行也产生了极大的影响。因此，选用恰当的无功补偿装置是非常有必要的，可以有效减少损耗，为提高经济效益和社会效益发挥了关键性的作用。首先在使用电容器补偿时，在确定电容器容量过程中应该将目标功率因数、配电电压的容量、负荷等考虑其中；其次为了使补偿效果达到最佳，应该采用模糊投切方式，与传统补偿方式相比，模糊投切方式具有调节平滑、跟踪准确、适应面广等优势，就目前而言补偿效果是最佳的；另外要将无功功率作为投切参数物理量，从而有效避免出现投切振荡、无功倒送等情况。此外，无功补偿设备在安装的过程中最好实行就地原则，就地安装，就地补偿，减少线路上的无功传输，实现节能的目的。
2.4有源滤波器的使用
有源滤波器的使用能够有效的将谐波消除，防止出现与电网联结电气设备的误动作。产生误动作的主要原因是逐渐增加的电气设备数量，导致大量的谐波出现，而这些谐波电流会产生与基波电压重叠的电压，造成电压的畸变，导致电气设备误动作的产生。总之，有源滤波器的动态性能非常优异，且具有反应灵敏、功率范围广等优点，对于无功功率的补偿有极大的作用。通常情况下，有源滤波器对谐波起到过滤的作用，有效防止电气设备误动作的产生，提高了电气设备的运行效率，优化了电气自动化的节能效果。
2.5其他节能设计技术
对于电气自动化系统而言，除了变压器、无功补偿及有源滤波器等节能技术以外，采用高效光源等其他形式也能够达到节能的效果，高效光源的光色好、发光率高、显色性能良好，如果应用到电气自动化系统中，能够从根本上实现能源的节约。目前，我国电气自动化的节能设计技术还处于不断发展的阶段，需要对其进行不断的分析和研究，只有这样才能进一步促进电气节能高新技术的发展。
涉及电气的英语作文【二】
This is a story about a special and ueserved woman who has been exposed to a hostile environment but continuously and fearlessly struggling for her ideal life. The story can be interpreted as a symbol of the independent spirit.
It seems to me that many readers’ English reading experience starts with Jane Eyer. I am of no exception. As we refer to the movie “Jane Eyer”, it is not surprising to find some differences because of its being filmized and retold in a new way, but the spirit of the novel remains----to be an independent person, both physically and mentally.
Jane Eyer was a born resister, whose parents went off when she was very young, and her aunt，the only relative she had，treated her as badly as a ragtag. Since Jane’s education in Lomon person, just the same as any other girl around. The suffers from being humiliated and devastated teach Jane to be persevering and prize dignity over anything else.As a reward of revolting the ruthless oppression, Jane got a chance to be a tutor in Thornfield Garden. There she made the acquaintance of lovely Adele and that garden’s owner, Rochester, a man with warm heart despite a cold face outside. Jane expected to change the life from then on, but fate had decided otherwise: After Jane and Rochester fell in love with each other and got down to get marry, she unfortunately came to know in fact Rochester had got a legal wife, who seemed to be the shadow following
Rochester and led to his moodiness all the time ----Rochester was also a despairing person in need of salvation. Jane did want to give him a hand, however, she made up her mind to leave, because she didn’t want to betray her own principles, because she was Jane Eyer. The film has finally got a symbolist end: Jane inherited a large number of legacies and finally returned. After finding Rochester’s misfortune brought by his original mad wife, Jane chose to stay with him forever.
I don’t know what others feel, but frankly speaking, I would rather regard the section that Jane began her teaching job in Thornfield as the film’s end----especially when I heard Jane’s words “Never in my life have I been awaken so happily.” For one thing, this ideal and brand-new beginning of life was what Jane had been imagining for long as a suffering person; for another, this should be what the audiences with my views hoped her to get. But the professional judgment of producing films reminded me to wait for a totally different result: There must be something wrong coming with the excellence----perhaps not only should another section be added to eich the story, but also we may see from the next transition of Jane’s life that “Life is like a box of chocolates, you never know what you would get.” (By Forrest Gump’s mother, in the film “Forrest Gump”
What’s more, this film didn’t end when Jane left Thornfield. For Jane Eyer herself, there should always be somewhere to realize her great ideal of being independent considering her fortitude, but for Rochester, how he can get salvation?
The film gives the answer tentatively: Jane eventually got back to Rochester. In fact, when Jane
met Rochester for the first time, she scared his horse and made his heel strained, to a certain extent, which meant Rochester would get retrieval because of Jane. We can consider Rochester’s experiences as that of religion meaning. The fire by his frantic wife was the punishment for the cynicism early in his life. After it, Rochester got the mercy of the God and the love of the woman whom he loved. Here we can say: human nature and divinity get united perfectly in order to let such a story accord with the requirements of both two sides. The value of this film may be due to its efforts to explore a new way for the development of humanism under the faith of religion.
Life is ceaselessly changing, but our living principles remain. Firmly persisting for the rights of being independent gives us enough confidence and courage, which is like the beacon over the capriccioso sea of life. In the world of the film, we have found the stories of ourselves, which makes us so concerned about the fate of the dramatis personae.
In this era of rapid social and technological change leading to increasing life complexity and psychological displacement, both physical and mental effects on us call for a balance. We are likely to find ourselves bogged down in the Sargasso Sea of information overload and living unconsciousness. It’s our spirit that makes the life meaningful.
Heart is the engine of body, brain is the resource of thought, and great films are the mirrors of life. In
dubitably, “Jane Eyer” is one of them.
涉及电气的英语作文【三】
随着社会的不断进步和电力技术的飞速发展，电气自动化的节能设计技术得到了人们的广泛关注，也取得了显著的进步。就目前而言，电气自动化的节能技术还需要不断的研究和完善，我们应该不断的优化配电设计，科学合理的利用电力资源，提高电气自动化系统运行效率的同时达到节能的目的。
涉及电气的英语作文【四】
i read the book written by luxun .it is called zhaohuaxishi. it includes 10 short articles about the writers stories .they are based on his own experience , when i read this book ,i feel very happy to see luxuns childhood. it was diffrent from ours,so we may find it intersting and exciting. luxuns langange is very great but maybe difficult to understand . but through his words ,we can find his happiness in his heart .
涉及电气的英语作文【五】
Dear Dad,
Long time no see, I do miss you. Well, let me tell you something about my life here.To tell the truth, i live a normal life just as anywhere i can live.(我过着一个在任何地方都普通的生活 My life is revolved on work and work.(我的生活除了学习还是学习Frankly,i feel tired sometimes(老实说，我有时候觉得很累.But i see, studying is the whole life to students like me.(但是我知道，学习是像我这样的学生的全部 So no matter how difficult, i will do my utmost .所以不管多艰难，我都会尽自己最大的努力。
Best wishes for you .
涉及电气的英语作文【六】
Jane Eyre is a first-person narrative of the title character, a small, plain-faced, intelligent and honest English orphan. The novel goes through five distinct stages: Janes childhood at Gateshead, where she is abused by her aunt and cousins; her education at Lowood School, where she acquires friends and role models but also suffers privations; her time as the governess of Thornfield Manor, where she falls in love with her Byronic employer, Edward Rochester; her time with the Rivers family at Marshs End (or Moor House and Morton, where her cold clergyman-cousin St John Rivers proposes to her; and her reunion with and marriage to her beloved Rochester at his house of Ferndean. Partly autobiographical, the novel abounds with social criticism and sinister gothic elements.
