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求用英文翻译下面文章:电力事业在中国已有了举足轻重的地位

2023-07-10 22:45:46
共3条回复
wpBeta

译文:Power industry in China has a pivotal position. Businesses, residents can not do without electricity. Establishment of large-scale power station is the only way for the development of power industry.

Energy use has penetrated into the social, economic, all areas of life, and in the power structure of the capacity of the total installed capacity of thermal power equipment for 75%. This article is equipped with 4 sets of 2 sets of 50MW and 300MW thermal power generator in a large part of the preliminary design, mainly to complete the electrical main wiring design. Including electrical wiring in the form of the main comparison of choice; generator, main transformer, start / standby transformer and high voltage auxiliary transformer capacity calculation, the number and types of choice sets; short-circuit current calculation and the circuit breaker, disconnecting switch selection and validation; Current transformer, voltage transformer selection and validation; and made a transformer.

u2022 Key words: power; generator; supply and distribution; main connection

里论外几

Electric power industry in China already has the balance of power. Enterprise, residents are inseparable from power. Establishing large hydropower station is the electric power industry development path.

Electricity use has to infiltrate society, economy, life in all areas, while in our country the power structure of the total installed capacity of thermal power equipment capacity of 75%. This paper is equipped with four sets of 50MW and 2 sets of large 300MW turbo generator power preliminary design of a part, mainly finished the design of the main electrical wiring. Including the main electrical wiring forms of comparison, choice; Generators, the main transformer, start/standby transformers and high-pressure factory with the transformer capacity calculation, the number and type of choice; Short-circuit current calculation and circuit breakers, isolating switch choice and calibration; Current transformer, voltage transformer choice and calibration; And transformer protection.

Keywords: electric power; Generators; Power supply; Lord wiring.

做毕业设计 (^o^)/~

ardim

Power industry in China has a pivotal position. Businesses, residents can not do without electricity. Establishment of large-scale power station is the only way for the development of power industry.

Energy use has penetrated into the social, economic, all areas of life, and in the power structure of the capacity of the total installed capacity of thermal power equipment for 75%.

This article is equipped with 4 sets of 2 sets of 50MW and 300MW thermal power generator in a large part of the preliminary design, mainly to complete the electrical main wiring design. Including electrical wiring in the form of the main comparison of choice; generator, main transformer, start / standby transformer and high voltage auxiliary transformer capacity calculation, the number and types of choice sets; short-circuit current calculation and the circuit breaker, disconnecting switch selection and validation; Current transformer, voltage transformer selection and validation; and made a transformer.

u2022 Key words: power; generator; supply and distribution; main connection.

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变压室可以建在水池上吗?

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2023-07-10 16:48:392

变压器 设立关键词 要设哪些关键词?power transformer 还有些什么?

选择网站关键词时要根据网站发展目标(网站是做品牌还是追求即时成单率,公司主要销售区域及目标开发市场区域)、自己产品优势及行业普遍情况(竞争对手情况)、网友搜索习惯、相关关键词热度综合决定,关键词不能太热门也不能太冷门,太热门的关键词竞争者多,往往还有许多竞价排名企业,很难做上去,太冷门的关键词做上去没有人搜索,不符合网友搜索习惯的关键词做上去往往也只是“看上去很美”,起不到应有的效果。比如朋友的变压器网站,如果是某一品牌或某几种变压器的全国总代理的话,那么网站关键词就应该设立为“X品牌变压器”、“Y品牌变压器”,如果主要针对某个省(比如云南省——经营各种变压器,那么网站关键词可以设置为“云南变压器”、“昆明变压器”、“云南变压器销售”、“云南变压器大全”等等。并且,除了网站关键词设立之外,每个网页都要设置单独的关键词,另外建议朋友再仔细研究流量统计(如CNZZ),并结合本行业销售情况与网友搜索习惯,并根据企业自身情况,对一些企业有竞争力的产品上做好“长尾关键词”(如“云南变压器哪里买”、“云南变压器价格”)设置工作,并根据这些“长尾关键词”组织文章,设置锚文本内链,并有针对性地加强这些“长尾关键词”的锚文本外链工作,这样就能较好地解决将一些自己企业网站关键词做不上去的问题,并可以有效提升网站权重。但必须提醒朋友的是,关键词排名还要靠内容为王,朋友你的网站必须有更多与关键词息息相关的原创内容才行,只有网站有了更多的原创内容(注意网站内链建设尤其是锚文本内链的建设)之后,必须考虑网站外链(锚文本外链)的的规律性建设,整个网站的搜索引擎权重才可能不断提升,网站的关键词排名才可能做上去,而且做上去之后不容易下滑太快。
2023-07-10 16:48:461

toroidal transformer是什么意思

toroidal transformer 变压器,环芯变压器toroidal core transformer 环芯变压器toroidal instrument transformer 环形测试用变压器Toroidal Power Transformer 环形变压器High power and low leakage toroidal transformer, ensure sufficient power supply.大功率、低漏磁环形变压器,保证充足的电源供应。
2023-07-10 16:48:541

英语set on a specific model怎么翻译?

set on a specific model翻译之后,他的意思就是:设置在一个特定的模型上
2023-07-10 16:49:1513

有关数控直流稳压电源的英文文献

Numerical control direct-current power supply An inventive series-regulator-type direct current power supply includes a power transformer of which a secondary winding has a plurality of output terminals, a plurality of corresponding rectifier systems connected to the output terminals, an input voltage-detecting circuit detecting a predetermined level of an input alternating current voltage, and a switching circuit opening and closing a line of the rectifying circuit systems. The inventive system selectively switches the output terminals of the secondary winding of the power supply transformer and switches the rectifying circuit, in response to a change in the amplitude of a primary input voltage in order to suppress a variation of a direct current output voltage. 数字控制直流电电源 An有创造力的系列管理者类型直流电电源包括一个二次绕组有输出终端复数,对应的整流器系统复数被连接到输出终端,输入电压查出的电路查出输入交变电流电压的一个被预先决定的水平和开关电路开头和结束矫正的电路系统的线的一台电源变压器。 有创造力的系统选择性地交换电源变压器的二次绕组的输出终端并且交换矫正的电路,以回应在主要输入电压的高度的上一个变化为了压制直流电产品电压的变异。
2023-07-10 16:49:382

帮忙改下我的翻译,谢谢。

本人初三水平``实在````````拿2分走人`````谢拉~
2023-07-10 16:49:476

什么是功率因数?

1、变压器本身对功率因数没有具体要求。电力行业规定0.95以上。 2、功率因数(Power Factor)的大小与电路的负荷性质有关, 如白炽灯泡、电阻炉等电阻负荷的功率因数为1,一般具有电感性负载的电路功率因数都小于1。功率因数是电力系统的一个重要的技术数据。功率因数是衡量电气设备效率高低的一个系数。功率因数低,说明电路用于交变磁场转换的无功功率大, 从而降低了设备的利用率,增加了线路供电损失。 3、变压器(Transformer)是利用电磁感应的原理来改变交流电压的装置,主要构件是初级线圈、次级线圈和铁芯(磁芯)。主要功能有:电压变换、电流变换、阻抗变换、隔离、稳压(磁饱和变压器)等。按用途可以分为:电力变压器和特殊变压器(电炉变、整流变、工频试验变压器、调压器、矿用变、音频变压器、中频变压器、高频变压器、冲击变压器、仪用变压器、电子变压器、电抗器、互感器等)。电路符号常用T当作编号的开头.例: T01, T201等。
2023-07-10 16:50:091

帮忙英文翻译,希望不要是软件翻译的,谢谢。

Solar energy lamp, a former charging LED lamp, price is higher, LED to lower costs, use the trouble and expense to buy batteries, more convenient, want to use and then use:1 using LED lamp, the light is downy and bright pure white, lighting (regional concentration, reduce the influence of peripheral filcker, eye protection, long service life, and LED tube could reach 50,000 hours.2 fast to lighten the lamp, fluorescent not black.3 multi-purpose design: computer lighting, learning the lamp, small night lights.4 many solar battery power supply mode: computer power transformer, NOKIA cellular phone chargers and power supply (optional), etc5. Built-in lithium battery capacity, long life, no memory effect, need not worry is the common lead-acid battery leakage problem, the energy conservation environmental protection acid.Use camping lamp, table lamp, learning power emergency voltage (V) 3.7 VRated power 0.4 (W) light type LED-- -- -- -- -- -- -- -LED lamp, solar battery, use cost price is higher, low trouble and expense of buy batteries, more convenient, want to use and then use the power, the more suitable illumination, also can be in remote areas, the mountain orchard:1 star LED by 20 bulbs, downy light bright pure white, lighting (regional concentration, reduce the influence of peripheral filcker, eye protection, long service life, and LED tube could reach 50,000 hours.2 fast to lighten the lamp, fluorescent not black.3 multi-purpose lamp, learning design: camping lamp, small night lights.4 many solar battery, power supply, electricity supply, transformer computer (optional), etc5. Built-in capacity for lithium battery and energy control circuit, applicable to the sun, intermittent long life, no memory effect, need not worry is the common lead-acid battery leakage problem, the energy conservation environmental protection acid-- -- -- -- -- -- -- -Long lighting rechargeable flashlight,Using high strength, convenient, small shell water fall,Built-in capacity of lithium battery, long life, no memory,Three high brightness LED light bulb, big change worry,Nokia, the mobile phone straight and used car charger of charging ways,The driver friend close-fitting baby, in the car, and with the filling with emergency, small light intensity. Product size only 10.3 3.2 * * for 2.5 (cm)Main USES lighting, working at night, emergency, Tourism, mountaineering, Driving emergency work voltage 3.7 V (V),Power source form led battery form-- -- -- -- -- -- -- -The new generation of rechargeable flashlight, aluminum alloy enclosure, wear-resisting metal oxide, exquisite luxurious color, small convenient, waterproof, long time: a lighting electric lighting 22 hours continuously,1. Built-in capacity of lithium battery, long life, no memory,2. Power, high brightness LED light bulb, change the trouble,3. Nokia, the mobile phone straight and used car charger, solar charger of charging ways; etc.4. The driver friend close-fitting baby, in the car, and with the filling with emergency, small light intensity.-- -- -- -- -- -- -- -
2023-07-10 16:50:173

pandapower最优潮流计算tutorial

This is an introduction into the usage of the pandapower optimal power flow. It shows how to set the constraints and the cost factors into the pandapower element tables. 该notebook主要是介绍pandapower最优潮流计算的使用。它展示了如何将约束和成本因子设置进入pandapower的元件列表。 We use the following four bus example network for this tutorial: 我们的教程使用下图的4节点示例网络: We first create this network in pandapower: 我们首先在pandapower中创建网络: We specify the same costs for the power at the external grid and all generators to minimize the overall power feed in. This equals an overall loss minimization: 我们特别指出外部电网和所有的发电机具有相同的电能成本,并最小化总的电能供应。这相当于整体网损的最小化。 pp.create_polynomial_cost()为元件的多项式成本创建一个条目,返回已经创建的成本条目的ID We run an OPF: 我们运行一个最优潮流计算: let"s check the results: 让我们看下结果: Since all costs were specified the same, the OPF minimizes overall power generation, which is equal to a loss minimization in the network. The loads at buses 3 and 4 are supplied by generators at the same bus, the load at Bus 2 is provided by a combination of the other generators so that the power transmission leads to minimal losses. 因为所有的成本都看成相同的,最优潮流计算最小化总的发电量后的结果和网络的损失最小化结果相同。母线3和母线4的负荷由各自母线上的发电机供应,而母线2上的负荷是由其他发电机联合供应因此电能的传输达到了最小的损失。 Let"s now assign individual costs to each generator. 现在给每台发电机赋予各自的发电成本。 We assign a cost of 10 ct/kW for the external grid, 15 ct/kw for the generator g0 and 12 ct/kw for generator g1: 我们给外部电网赋予10ct/kW的成本,发电机g0赋予15ct/kW的成本以及发电机g1赋予12ct/kW的成本: And now run an OPF: 现在运行最优潮流运算: We can see that all active power is provided by the external grid. This makes sense, because the external grid has the lowest cost of all generators and we did not define any constraints. 我们可以看出所有的有功都是由外部电网提供。这是合理的,因为外部电网拥有最低的发电成本,而且我们没有定义任何的约束。 The dispatch costs are given in net.res_cost: dispatch成本可以由net.res_cost给出: Since all active power comes from the external grid and subsequently flows through the transformer, the transformer is overloaded with a loading of about 145%: 因为所有的有功功率都来自与外部电网,接着潮流流过了变压器,变压器过载运行,负载约为145%: We now limit the transformer loading to 50%: 现在设置变压器的负载约束为50%: (the max_loading_percent parameter can also be specified directly when creating the transformer) and run the OPF: (max_loading_percent参数也可以在创建变压器时直接指定) 然后运行最优潮流计算: We can see that the transformer complies with the maximum loading: 我们可以看到变压器以最大负荷运行: And power generation is now split between the external grid and generator 1 (which is the second cheapest generation unit): 现在有功功率的产生主要来自于外部电网和发电机g1(g1是发电成本第二低的发电机组) This comes of course with an increase in dispatch costs: 这样的结果就导致了dispatch成本的上升: We now look at the line loadings: 我们现在关注于线路负载: and run the OPF with a 50% loading constraint: 然后在线路50%负载水平条件下运行最优潮流计算: Now the line loading constraint is complied with: 现在线路的负载约束编译后: And all generators are involved in supplying the loads: 所有的发电机都开始供应负荷: This of course comes with a once again rising dispatch cost: 这导致了dispatch成本又一次的提升: Finally, we have a look at the bus voltage: 最后,我们在关注一下电压: and constrain it: 加以约束,并运行最优潮流计算: We can see that all voltages are within the voltage band: And all generators are once again involved in supplying the loads: 所有的发电机又一次都参与了负荷的供应: This of course comes once again with rising dispatch costs: 又一次导致了dipatch成本的提升: pandapower also provides the possibility of running a DC Optimal Power Flow: pandapower也可以提供了运行直流最优潮流计算的可能: Since voltage magnitudes are not included in the DC power flow formulation, voltage constraints canot be considered in the DC OPF: 因为直流潮流公式中不考虑电压幅值,所以在直流潮流计算中并不考虑电压约束: Line and transformer loading limits are however complied with: 线路和变压器负载限制编译后为: As are generator limits: 发电机限制为: The cost function is the same for the linearized OPF as for the non-linear one: 线性最优潮流计算和非线性潮流计算的成本函数一致: Piecewise linear cost functions The OPF also offers us piecewise linear cost functions. Let us first check the actual cost function setup: 分段线性成本函数 最优潮流九三也提供了分段线性成本函数。我们首先看一下实际的成本函数设置: An element can either have polynomial costs or piecewise linear costs at the same time. So let us first delete the polynomial costs in order to avoid confusion and errors: 一个元件的成本函数只能是多项式或者分段线性中的一种。因此,让我们首先删除多项式成本函数,以免产生困惑和错误: The results above have been produced with polynomial cost functions, that were linear. Let"s try to reproduce the results using piecewise linear cost functions. Note: The cost functions need to have the same gradient! 上面的计算结果是采用多项式成本函数计算的,是线性的。现在我们使用分段线性函数重新计算结果。 需要强调的是:成本函数需要拥有相同的梯度! What we forgot is that the piecewise linear function should be defined for the whole range of the generator. The range is determined by p_max and p_min. Let"s check: 额...错误信息是ValueError: Cost function must be defined for whole power range of the generator,让我们检查一下: We try again: 我们再试一下: An external grid usually has no operational limits, but this is a problem for the OPF: 外部电网通常没有运行限制,但这是OPF的一个问题: So we set imaginary constraints, that we can choose very broad: 因此,我们虚构一个约束,将这个约束的范围设置的很广: Let us check the results from the previous OPF again! 让我们再看一下之前的OPF运行结果: We run the same OPF now with different cost function setup. We should get the exact same results: 我们运行了相同的OPF但是采用不同的成本函数,我们应该获得完全相同的结果:
2023-07-10 16:50:491

电气类(母线)相关产品翻译,急求专业高手帮忙!!!需将中文翻译成行业内通用英文表述!!

Water pouring busTinned copper bus barSide soft connectionSwitch cabinet side into the box.Six angle screwsBus bending machineBus bar drilling machineTorque wrenchPower cableCable intermediate joint brassCopper noseFinger sleeve cableAir switchElectrical insulating tapeWaterproof insulation tape
2023-07-10 16:52:383

英文 翻译

Power communication equipment with the building and maintenance of communication networks scale continues to expand, Power communication equipment stability and security have become increasingly important. If the DC power system failure, often caused the entire communications were totally disrupted. Power major communications equipment from the exchange of high-pressure, low voltage substation equipment, DC power distribution equipment, exchange Regulators, rectifier equipment, UPS equipment, DC/DC converters, batteries, generators and other components. Communication Power in the course of construction equipment, the installation should be based on rigorous scrutiny of the work attitude of operation, Otherwise, departments will maintain caused a lot of trouble, or even causing the accident. Example 1 : a branch of the Agriculture Power Equipment Installation, because of the installation of neglect. forgotten SMPS integrated screen input protection to exchange links, and a season of thunderstorms, The branch rectifier modules are often struck by lightning after the inspection, maintenance department discovered the problem, the maintenance staff to maintain the treatment, avoided the branch rectifier module is destroyed danger. Example 2 : A branch of the construction of power equipment, battery connector not compress, causing terminal contact resistance value increases. The charging and discharging process when the current intensity increases, it is easy to cause power supply and power cord fever, temperature exceeds the specified value. Re-engineering staff compress power supply, the problem can be solved. I. Communication Power building communications can be divided into building power AC Power Supply System, DC power systems and grounding systems. 1. AC Power Supply System Communication Power Supply System exchanges generally are high-voltage power distribution, step-down transformer, Chai (Vapor) oil-fired units, UPS and low-voltage distribution screen composition. High-voltage power distribution and the step-down transformer should regulate the electricity sector for the construction of the installation; Chai (Vapor) oil-fired units. UPS and low-voltage power distribution panels to be installed in accordance with the norms of telecommunications power. Diesel generators installed in chronological order : Open test, fixed and stable leveling machine, the exhaust pipe of silk processing sets (or welding) corrugated pipe installation, the installation of silencers, and other test Adjustment. UPS before installation, to single-battery for exterior inspection, observe whether there is leakage of liquid and shell deformation and fracture, then on batteries alone for open-circuit voltage tested and recorded. After connecting the battery to the battery of total output voltage test and records, in order to prevent some of the anti-access battery polarity. UPS to connect the exchange to introduce line, the battle line is not allowed to access anti-Line (Note that there are certain sequence of UPS"s). Low voltage distribution prior to the screen installation of the fixed screws comprehensive reinforcement, testing whether platen phase short circuit, Installation screen checked the pressure drop. 2. DC power supply system of communications equipment DC power supply system generally rectifiers, batteries, DC/DC converter and DC power distribution components screens. Adapter (now basically using high frequency switching power supply) to be installed within the frame reinforcement pieces of a comprehensive reinforcement of input. whether output short circuit, after -- for the electrical performance testing. Installed in battery to battery exterior inspection of single-section for the open circuit voltage tested and recorded. After connecting the battery should total voltage test and records. DC/DC converter in Canada -- before to input and output terminal test after test in power output voltage value, Moreover, we need to transfer to other performance measurement. DC power distribution panels installed speakers similar to the above exchange screens installed. 3. Grounding System in order to improve the quality of communication to ensure that the communications equipment and personal safety, Communication room requires a good grounding system. Communication Power grounding system commonly used in the United earth grounding. Joint grounding standard way to connect the grounding through the convergence of (or large sections of the copper-core power cord) into the power room Grounding Bus, DC work, and mine-protected respectively from the total to a matter Leading up.
2023-07-10 16:52:461

苹果gpt是3.5还是4

目前最新版本的GPT模型是GPT-3,它可以进行自然语言的生成、理解和应用,同时还能够进行语言模型的训练和微调。
2023-07-10 16:52:5415

尼古拉·特斯拉的主要论著

《A New System of Alternate Current Motors and Transformers》1888年《Phenomena of Alternating Currents of Very High Frequency》1891年《The Tesla Effects With High Frequency and High Potential Currents》《Experiments with Alternate Currents of Very High Frequency and Their Application to Methods of Artificial Illumination》1891年《Experiments with Alternate Currents of High Potential and High Frequency》1892年《On Light and Other High Frequency Phenomena》1893年《On the Dissipation of the Electrical Energy of the Hertz Resonator》1892年《Tesla"s Oscillator and Other Inventions》1895年《Earth Electricity to Kill Monopoly》1896年《On Electricity》1897年《High Frequency Oscillators for Electro-therapeutic and Other Purposes》1898年《Plans to Dispense With Artillery of the Present Type》1898年《Tesla Describes His Efforts in Various Fields of Work》1898年《On Current Interrupters》1899年《The Problem of Increasing Human Energy》1900年《Tesla"s New Discovery》1901年《Talking With Planets》1901年《Inventor Tesla"s Plant Nearing Completion》1902年《The Transmission of Electrical Energy Without Wires》1904年《Electric Autos》1904年《The Transmission of Electrical Energy Without Wires as a Means for Furthering Peace》1905年《Tuned Lightning》1907年《Tesla"s Wireless Torpedo》1907年《Possibilities ofWireless》1907年《The Future of the Wireless Art》1908年《Mr. Tesla"s Vision》1908年《Nikola Tesla"s New Wireless》1909年《Dr. Tesla Talks of Gas Turbines》1911年《Tesla"s New Monarch of Machines》1911年《The Disturbing Influence of Solar Radiation On the Wireless Transmission of Energy》1912年《How Cosmic Forces Shape Our Destinies》1915年《Some Personal Recollections》1915年《The Wonder World To Be Created By Electricity》1915年《Nikola Tesla Sees a Wireless Vision》1915年《Tesla"s New Device Like Bolts of Thor》1915年《Wonders of the Future》1916年《Electric Drive for Battle Ships》1917年《Presentation of the Edison Medal to Nikola Tesla》1917年《Tesla"s Views on Electricity and the War》1917年《Famous Scientific Illusions》1919年《The True Wireless》1919年《Electrical Oscillators》1919年《Rain Can Be Controlled and Hydraulic Force Provided》1920年《When Woman is Boss》1926年《World System of Wireless Transmission of Energy》1927年《Nikola Tesla Tells of New Radio Theories》1929年《Our Future Motive Power》1931年《Tesla Cosmic Ray Motor May Transmit Power "Round Earth》1932年《Pioneer Radio Engineer Gives Views On Power》1932年《The Eternal Source of Energy of the Universe, Origin and Intensity of Cosmic Rays》1932年《Tesla "Harnesses" Cosmic Energy》1933年《Tesla Invents Peace Ray》1934年《Tesla on Power Development and Future Marvels》1934年《Dr. Tesla Visions the End of Aircraft In War》1934年《The New Art of Projecting Concentrated Non-dispersive Energy Through Natural Media》1935年《A Machine to End War》1935年《Tesla Predicts Ships Powered by Shore Beam》1935年《Tesla Tries to Prevent World War II》1944年《Mechanical Therapy》 《My Inventions》是特斯拉在63岁时完成的自传,1917年8月~1919年7月,在《Electrical Experimenter》发表,共分为6篇文章,里面回忆了他60余年来的部分生活和经历。1、My Early Life(我的少年生活)2、My First Efforts At Invention(我早期的发明努力)3、My Later Endeavors(我是如何构想旋转磁场的)4、The Discovery of the Tesla Coil and Transformer(发明特斯拉线圈和变压器)5、The Magnifying Transmitter(放大发射机)6、The Art of Telautomatics(自动遥控的艺术) 早在1894年,特斯拉就在《纽约时报》上首次论述他的关于光、物质、以太和宇宙的理论。1931年,特斯拉在75岁生日之际接受记者采访时说,他正试图驳斥爱因斯坦的广义相对论,证明那是错误的。特斯拉说,他的解释没有爱因斯坦的那么复杂,一旦准备完毕可以完全公诸于世时,大家将会看到他的结论是有根有据的。1936年,80岁寿辰之际,特斯拉发表了一份共计10页的论文。这份论文从未全文出版过,它是特斯拉的大统一场理论。他说,这一理论“对天体在其影响下的运行,给予了如此令人满意的说明,以致那些毫无根据的推测和错误的概念,诸如弯曲空间,可以就此终结”。然而,在他的关于天体物理学和天体力学的众多论著中,这一引力理论从未被阐明过。在论文中特斯拉阐述道,弯曲空间是完全不会发生的,因为作用和反作用是共存的,一个弯曲会被拉直所抵消。不承认以太的存在以及它必不可少的作用,想解释任何关于宇宙的现象都将是不可能的。尽管爱因斯坦带来了一场革命,但特斯拉仍然确信,“物质当中没有能量,能量是从周围环境中获得的”。他认为,这既适用于最庞大的天体,也严格适用于分子和原子。然而,这一次,他错的离谱。这份论文题为《The Dynamic Theory of Gravity》,就是所谓的《引力的动态理论》,其实正确译法应为《引力的动力学理论》,这个理论被誉为是大统一场理论的先驱。另外,特斯拉在81岁时发表了一份声明《Prepared Statement by Nikola Tesla》来宣传《引力的动态理论》。 与爱因斯坦的理论不同的是:特斯拉的理论是一个基于牛顿的万有引力延伸出来的理论。这个理论从没被正式出版过,而在特斯拉逝世后美国政府将他的研究报告列入绝密档案。虽然我们仍然能够找到少量曾引用过这篇论文的内容,但其整体内容还是未知。特斯拉这个理论的中心思想,认为以太是存在的,而且是引力的存导介质,而不是引力场;而透过电磁场的高速转动,可以带动以太旋转,从而改变引力的大小与方向。
2023-07-10 16:53:261

超级大用英语怎么说

问题一:有时他是一个非常高大的用英语怎么读 你这句话是个病句。 有时他是一个非常高大翻译:Sometimes he is a very tall 有时他是一个非常高大的人翻译:Sometimes he is a very tall man 有时我感觉他是一个非常高大的人翻译:Sometimes I feel he is a very tall man 还有什么要问的,可以问我。 问题二:“非常非常大”英语怎么翻译?? 如果用低级词汇,其实用Big就可以了,不过强调非常的话用Such比较好。 例如 XXXX is such a big mistake 高级一点用huge 在高级一点可以用monster,这是外国习惯夸大的时候表示巨大的不可思议的。 如果想强调非常,不放加一些夸张的形容词。 另外可以反着说, 比如:I am fool to do XXXX 问题三:超高频用英语怎么说 超高频 [词典] superfrequency; ultrahigh frequency (UHF); superhigh frequency (SHF); extrahigh frequency; UHF; [例句]针对大型电力变压器局部放电超高频检测法进行了初探性的研究。 The primary exploration of large power transformer PD UHF detection method is discussed. 问题四:“我长得很高大并且很强壮”用英语怎么翻译 “我长得很高大并且很强壮” ------- I have grown very tall and strong.
2023-07-10 16:54:101

Mold transformer是什么

变压器
2023-07-10 16:54:182

千伏安的英文缩写

英文缩写 KVA 英文全称 kiloVolt-Ampere 中文解释 千伏安 扩展资料 The technical innovation of 3340 KVA rectification set to save energy 3340kVA整流机组节能技术改造 Development of 100 kVA enhanced SVG based on three-phase four-wire power system 100kVA三相四线系统用增强型SVG的研制 Trouble Analysis and Handling of 25000 kVA Power Transformer 25000kVA电力变压器故障分析与处理
2023-07-10 16:54:241

输配电系统 英语作文

Introduction of Electric power Transmission and Distribution:For economical generation of power large generating stations are used. Capacities of individual generating sets have gone up recently. Generating sets in the range of 10 MW, 210 MW and 500 MW are being manufactured in many countries. Generating station are now not necessarily located at load centers. In fact other factors like availability of fuel and water play more dominating role in the selection of sites for thermal stations. Hydro stations are obviously located only at the sites where water is available at sufficient head. A vast network of transmission system has been created so that power generated at one station may be fed to grid system and may be distributed over large areas and number of states. The transmission and distribution system comprises a network of three-phase circuits with transforming and or switching substations at the various junctions. The parts of a transmission and distribution network maybe grouped as given below.Electric power TRANSMISSION:Several generating stations can be inter connected. The main advantages are :(i) reduction in the number of spare plants required as one station can assist the other at the time of emergency.(ii) during light loads one station or some generators can be shut off, thus affecting operational economy.Primary electric power transmission:High voltages of the order of 66 kV 132 kV 220 kV and 400 kV are used for transmitting power by 3 phase 3 wire overhead system. This is supplied to substations usually at the out skirts of major distribution center or city.Secondary electric power transmission:The primary voltage is reduced to low values of the order of 3.3 kV, 11 kV or 33 kV for secondary transmission.Primary electric power distribution:The transmission lines or inner connectors terminate at large main substations from which the power is distributed to small secondary substations scattered throughout the load area. The voltage may range from 11 kV to 132 kV.Secondary electric power distribution:This consists of the low-voltage network laid along the streets, localities and over the rural areas. From these sources connections to individual customers are provided. The circuit used for this purpose is 3 phase 4 wire, 440 V/220 V from which either 3 phase 440 V or single phase 220 V supply to the consumers may be provided.System layout of electric power transmission and distribution:From the power stations PS, emanate 3 phase feeder supplying secondary distributions substations located at points throughout the supply area. The normal voltages are 132 kV, 33 kV and 11 kV.COMPARISON OF AC AND DC power TRANSMISSION:(A) Advantages of DC electric power transmission:1. It requires only two conductors.2. There is no problem of inductance, capacitance and phase displacement which is common in ac transmission.3. For the same load and sending end voltage, the voltage drop in dc transmission lines is less than that in ac transmission.4. As there is no skin effect on conductors, therefore entire cross-section of conductor is usefully utilized thereby affecting saving in material.5. For the same value of voltage insulating materials on dc lines experience less stress as compared to those on ac transmission lines.6. A dc line has less corona loss and reduced interference with communication circuits.7. There is no problem of system instability so common in ac transmission.Disadvantages of DC transmission:1. Generation of power at high dc voltages is difficult due to commutation problems and cannot be usefully utilized at Consumer ends.2. Step up or step-down transformation of dc voltages is not possible in equipment like transformer.(B) Advantages of AC electric power Transmission:1. Power can be generated at high voltages as there is no commutation problem.2. Ac voltages can be conveniently stepped up or stepped down.3. High voltage transmission of ac power reduces losses.Disadvantages of AC electric power transmission:1. Problems of inductances and capacitances exist in transmission lines2. Due to skin effect, more copper is required.3. Construction of AC transmission lines is more complicated as well as costly4. Effective resistance of ac transmission lines is increased due to skin effect.来源:http://www.electricalquizzes.com/electric-transmission-distribution/electric-transmission-distribution望采纳
2023-07-10 16:54:321

变压器功率因数低的意义有哪些?

1、变压器本身对功率因数没有具体要求。电力行业规定0.95以上。 2、功率因数(Power Factor)的大小与电路的负荷性质有关, 如白炽灯泡、电阻炉等电阻负荷的功率因数为1,一般具有电感性负载的电路功率因数都小于1。功率因数是电力系统的一个重要的技术数据。功率因数是衡量电气设备效率高低的一个系数。功率因数低,说明电路用于交变磁场转换的无功功率大, 从而降低了设备的利用率,增加了线路供电损失。 3、变压器(Transformer)是利用电磁感应的原理来改变交流电压的装置,主要构件是初级线圈、次级线圈和铁芯(磁芯)。主要功能有:电压变换、电流变换、阻抗变换、隔离、稳压(磁饱和变压器)等。按用途可以分为:电力变压器和特殊变压器(电炉变、整流变、工频试验变压器、调压器、矿用变、音频变压器、中频变压器、高频变压器、冲击变压器、仪用变压器、电子变压器、电抗器、互感器等)。电路符号常用T当作编号的开头.例: T01, T201等。
2023-07-10 16:54:391

SAA电源的SAA认证强制管制类电器清单

名称 英文名称 标准 1. 电器连接器 APPLIANCE CONNECTOR AS/NZS 60320.1:2004.AS/NZS 60320.1:2004 and AS/NZS 60320.2.2:2004. 2. 电弧焊机 ARC WELDING MACHINE AS/NZS 60974.6:2006 3. 卡口灯座 BAYONET LAMPHOLDER AS/NZS 3100 and AS/NZS 3117: 2007 (until 30 December 2016); or AS/NZS 61184:2007 4. 卡口灯座适配器 BAYONET LAMPHOLDER ADAPTOR AS/NZS 3100 and AS 3119:1994. 5. 电热毯 BLANKET AS/NZS 3350.1 and AS/NZS 3350.2.17:2000 with amendments 1 to 3 (until 31 May 2011); orAS/NZS 60335.1 and AS/NZS 60335.2.17:2004 with amendment 1. 6. 烤面包器 BREAD TOASTER AS/NZS 3350.1 and AS/NZS 3350.2.9:1999 with amendments 1 to 4 (until 22 November2009): orAS/NZS 60335.1 and AS/NZS 60335.2.9:2002 with amendments 1 to 4 7. 干衣机 CLOTHES DRTER Rotary type:AS/NZS 3350.1 and AS/NZS 3350.2.11:2001 with amendment 1 (until 22 November 2009) orAS/NZS 60335.1 and AS/NZS 60335.2.11:2002 with amendments 1 and 2.Cabinet type:AS/NZS 3350.1 and AS/NZS 3350.2.43:2001 with amendments 1 and 2 (until 17 June 2012)or AS/NZS 60335.1 and AS/NZS 60335.2.43:2005 with amendment 1. 8. 控制或调节装置 CONTROL OR CONITIONING DEVICE AS/NZS 3100 and AS/NZS 3197:2005 with amendment 1. 9. 移动式烹调器具 COOKING APPLIANCE-PORTABLE TYPE Griller, roaster, or oven (including breadmaker)-AS/NZS 3350.1 and AS/NZS 3350.2.9:1999 with amendments 1 to 4 (until 22 November2009) orAS/NZS 60335.1 and AS/NZS 60335.2.9:2002 with amendments 1 to 4.Warming plate and similar-AS/NZS 3350.1 and AS/NZS 3350.2.12:1997 with amendments 1 to 3 (until 31 May 2011); orAS/NZS 60335.1 and AS/NZS 60335.2.12:2004.Frying pan, deep fryer or wok-AS/NZS 3350.1 and AS/NZS 3350.2.13:2001 with amendment 1 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.13:2004 with amendments 1 and 2.Outdoor barbecue-AS/NZS 3350.1 and AS/NZS 3350.2.78:1996 with amendments 1 to 3 (until 17 June 2012) orAS/NZS 60335.1 and AS/NZS 60335.2.78:2005 with amendment 1. 10. 拖线板 CORD EXTENSION SOCKET AS/NZS 3100 and AS/NZS 3120:1999. 11. 线上开关 CORD-LINE SWITCH AS/NZS 3100 and AS/NZS 3127:2005. 12. 灯饰 DECORATIVE LIGHTING OUTFIT AS/NZS 60598.1 and AS/NZS 60598.2.20:2002. 13. 洗碗机 DISHWASHING MACHINE AS/NZS 3350.1 and AS/NZS 3350.2.5:1995 with amendments 1 to 3 (until 22 November2009) or AS/NZS 60335.1 and AS/NZS 60335.2.5:2002 with amendment 1. 14. 螺口灯座 EDISON SCREW LAMPHOLDER AS/NZS 3100 and AS/NZS 3140:2007 (until 30 December 2016) or AS/NZS 60238:2007. 15. 风扇 FAN AS/NZS 3350.1 and AS/NZS 3350.2.80:1998 with amendments 1 to 4 (until 3 September2011) or AS/NZS 60335.1 and AS/NZS 60335.2.80:2004. 16. 电栅栏激发器 FENCE ENERGISER AS/NZS 3350.1 and AS/NZS 3350.2.76:1998 with amendments 1 to 3 (until 30 May 2010) orAS/NZS 60335.1 and AS/NZS 60335.2.76:2003 with amendment 1. 17. 电热软垫 FLEXIBLE HEATING PAD Foot warmer and foot mat- AS/NZS 3350.1 and AS/NZS 3350.2.81:1998 with amendments 1 and 2 (until 20 October2013) or AS/NZS 60335.1 and AS/NZS 60335.2.81:2006 with amendment 1Other- AS/NZS 3350.1 and AS/NZS 3350.2.17:2000 with amendments 1 to 3 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.17:2004 with amendment 1. 18. 地板磨光机/擦地板机 FLOOR POLISHER/SCRUBBER AS/NZS 3350.1 and AS/NZS 3350.2.10:1996 with amendments 1 to 3 (until 24 March 2013)or AS/NZS 60335.1 and AS/NZS 60335.2.10:2006. 19. 日光灯镇流器 FLUORESCENT LAMP BALLAST Integral (self ballasted lamp) magnetic and electronic typesAS/NZS 60968:2001.Other magnetic type-AS/NZS 61347.1and AS/NZS 61347.2.8:2003.Other electronic type- AS/NZS 6137.1 and AS/NZS 61347.2.3:2004. 20. 荧光灯启辉器 FLUORESCENT LAMP STARTER AS/NZS 60155:2000 (Section 1) with amendments 1 and 2. 21. 毛发护理电器 HAIR CARE APPLIANCE AS/NZS 3350.1 and AS/NZS 3350.2.23:2001 with amendments 1 to 4 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.23:2004 with amendment 1. 22. 修枝剪 HEDGE CLIPPER AS/NZS 3100 and AS/NZS 3160 (until 20 October 2009) or AS/NZS 60745.1 and AS/NZS60745.2.15:2006. 23. 侵入式加热器 IMMERSION HWATER Aquarium type-AS/NZS 3350.1 and AS/NZS 3350.2.55:1998 with amendments 1 to 3 (until 3 September2011) or AS/NZS 60335.1 and AS/NZS 60335.2.55:2004 with amendment 1.Portable (other than aquarium) type-AS/NZS 3350.1 and AS/NZS 3350.2.74:2001 with amendment 1 (until 17 June 2012) orAS/NZS 60335.1 and AS/NZS 60335.2.74:2005 with amendment 1.Fixed type-AS/NZS 3350.1 and AS/NZS 3350.2.73:1996 with amendments 1 to 3 (until 17 June 2012) orAS/NZS 60335.1 and AS/NZS 60335.2.73:2005 with amendment 1. 24. 昆虫电击器 INSECT ELECTROCUTOR AS/NZS 3350.1 and AS/NZS 3350.2.59:1999 with amendments 1 to 3 (until 17 June 2012) orAS/NZS 60335.1 and AS/NZS 60335.2.59:2005 with amendment 1 and 2. 25. 手持式探照灯 INSPECTION HANDLAMP AS/NZS 60598.1 and AS/NZS 60598.2.8:2002. 26. 电熨斗 IRON Fabric steamer -AS/NZS 3350.1 and AS/NZS 3350.2.85:1998 with amendments 1 and 2 (until 17 June 2012)or AS/NZS 60335.1 and AS/NZS 60335.2.85:2005Other -AS/NZS 3350.1 and AS/NZS 3350.2.3:1995 with amendments 1 to 3 (until 22 November2009) or AS/NZS 60335.1 and AS/NZS 60335.2.3:2002 with amendment 1. 27. 厨房器具 KITCHEN MACHINE AS/NZS 3350.1 and AS/NZS 3350.2.14:1995 with amendments 1 to 4 (until 25 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.14:2007. 28. 草坪护理器具 LAWN CARE APPLIANCE Mower-AS/NZS 60335.1 and AS/NZS 60335.2.77:2002 with amendment 1.Trimmer (with non-metallic filament line or cutter/s)-AS/NZS 60335.1 and AS/NZS 60335.2.91:2002 with amendments 1 and 2 (until 31 October2010) or AS/NZS 60335.1 and 60335.2.91:2008Trimmer (other)- AS/NZS 3100 and AS/NZS 3156: 1995 with amendments 1 and 2 (withdrawn frompublication) (until 20 October 2008) or AS/NZS 60335.2.91:2008. 29. 液体加热器 LIQUID HEATING APPLIANCE Humidifier-AS/NZS 3350.1 and AS/NZS 3350.2.98:1998 with amendments 1 and 2 (until 17 June 2012)or AS/NZS 60335.1 and AS/NZS 60335.2.98:2005.Other-AS/NZS 3350.1 and AS/NZS 3350.2.15:2002 with amendments 1 to 3 (until 22 November2009) or AS/NZS 60335.1 and AS/NZS 60335.2.15:2002 with amendments 1 to 3. 30. 移动式灯具 LUMINAIRE - PORTABLE TYPE Child appealing type (refer to clause (f))-AS/NZS 60598.1 and AS/NZS 60598.2.10:1998.Type fitted with a built-in transformer or convertor-AS/NZS 60598.1 and AS/NZS 60598.2.6:1998.Floodlight-AS/NZS 60598.1 and AS/NZS 60598.2.5:2002.Other-AS/NZS 60598.1 and AS/NZS 60598.2.4: 2005 with amendment 1. 31. 按摩器 MASSAGE APPLIANCE AS/NZS 3350.1 and AS/NZS 3350.2.32:2001 with amendment 1 (until 3 September 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.32:2004 with amendment 1. 32. 微波炉 MICROWAVE OVEN AS/NZS 3350.1 and AS/NZS 3350.2.25:2001 with amendment 1 (until 13 May 2009) orAS/NZS 60335.1 and AS/NZS 60335.2.25:2002 with amendments 1 to 4. 33. 微型过电流断路器 MINIATURE OVERCURRENT CIRCUIT-BREAKER AS 3111or AS/NZS 60898.1:2004 and 60898.2:2004. 34.OUTLETDEVICE OUTLET DEVICE Integral pin type (including travel adaptor) -AS/NZS 3100 and AS/NZS 3122:2005.Other -AS/NZS 3100 and AS/NZS 3105:2007. 35. 电源插座 PLUG AS/NZS 3100 and AS/NZS 3112 36.开关电源 POWER SUPPLY OR CHARGER Power supply for general use-AS/NZS 61558.1 or AS/NZS 60950.1:2011 and AS/NZS 61558.2.6:2001 with amendment 1.Power supply (electronic or transformer types) designated for use with specificelectronic equipment-AS/NZS 60065 or AS/NZS 60950.1:2003 with amendments 1 to 3.Power supply for toys-AS/NZS 61558.1 and AS/NZS 61558.2.7:2001 (until 31 October 2010) or AS/NZS61558.1:2008 and 61558.2.7:2008.Power supply for bells or chimes-AS/NZS 61558.1 and AS/NZS 61558.2.8:2001.Power supply (electronic type) for lighting purposes-LED modules:AS/NZS 61347.1 and IEC 61347.2.13 edition 1.0Other:AS/NZS 61347.1 and AS/NZS 61347.2.2:2007.Power supply for Handlamps-AS/NZS 61558.1 and AS/NZS 61558.2.9:2003.Battery charger-AS/NZS 3350.1 and AS/NZS 3350.2.29:2001with amendment 1 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.29:2004 with amendment 1. 37. 投影仪 PROJECTOR AS/NZS 3350.1 and AS/NZS 3350.2.56:1998 with amendments 1 to 3 (until 23 June 2013) orAS/NZS 60335.1 and AS/NZS 60335.2.56:2006. 38. 电磁炉 RANGE AS/NZS 3350.1 and AS/NZS 3350.2.6:2006 with amendment 1 (until 22 November 2009) orAS/NZS 60335.1 and AS/NZS 60335.2.6:2008 with amendment 1. 39. 抽油烟机 RANGE HOOD AS/NZS 3350.1 and AS/NZS 3350.2.31:2001 with amendments 1 and 2 (until 3 September2011) or AS/NZS 60335.1 and 60335.2.31:2004 with amendments 1 and 2. 40. 电动剃须刀/电推剪 RAZOR/HAIR CLIPPER AS/NZS 3350.1 and AS/NZS 3350.2.8:1995 with amendments 1 to 3 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.8:2004 with amendment 1. 41. 冰箱/冷柜 REFRIGERATOR/FREEZER AS/NZS 3350.1 and AS/NZS 3350.2.24:2001 with amendment 1 (until 14 November 2010) orAS/NZS 60335.1 and AS/NZS 60335.2.24:2003 with amendments 1 to 3. 42. 漏电流装置 RESIDUAL CURRENT DEVICE Without integral overcurrent protection -AS/NZS 61008.1:2004 or AS3190:2002 with amendment 1.With integral overcurrent protection -AS/NZS 61009.1:2004 with amendment 1 or AS/NZS 3190:2002 with amendment 1 and AS3111 43. 房间取暖器 ROOM HEATER Thermal storage type-AS/NZS 3350.1 and AS/NZS 3350.2.61:2001 with amendment 1 (until 17 June 2012) orAS/NZS 60335.1 and AS/NZS 60335.2.61:2005 with amendment 1.Other-AS/NZS 3350.1 andAS/NZS 3350.2.30:2007 with amendment 1 (until 31 May 2011) or AS/NZS 60335.1 andAS/NZS 60335.2.30:2004 with amendments 1 to 5. 44. 缝纫机 SEWING MACHINE AS/NZS 3350.1 and AS/NZS 3350.2.28:1996 with amendments 1 to 3 (until 23 June 2013) orAS/NZS 60335.1 and AS/NZS 60335.2.28:2006. 45. 插座 SOCKET-OUTLET Class specification:AS/NZS 3100 and AS/NZS 3112 46. 电烙铁 SOLDERING IRON AS/NZS 3350.1 and AS/NZS 3350.2.45:1997 with amendments 1 to 3 (until 3 September2011) or AS/NZS 60335.1 and AS/NZS 60335.2.45:2004. 47. 连接导线 SUPPLY FLEXIBLE CORD AS 3191:2008; orAS/NZS 60227.5:2003 with amendment 1 (PVC); orAS/NZS 60245.4:2003 with amendment 1 (Rubber). 48. 游泳池设备或疗养设备 SWIMMING POOL OR SPA EQUIPMENT Pump-AS/NZS 3350.1 and AS/NZS 3350.2.41:1997 with amendments 1 to 3 (until 3 September2011) or AS/NZS 60335.1 and AS/NZS 60335.2.41:2004.Other-AS/NZS 3100 and AS/NZS 3136:2001 with amendments 1 and 2. 49. 电视接收机 TELEVISION RECEIVER AS/NZS 60065 50. 治疗用的灯具 THERAPEUTIC LAMP AS/NZS 3350.1 and AS/NZS 3350.2.27:1996 with amendments 1 to 3 (until 31 May 2011) orAS/NZS 60335.1 and AS/NZS 60335.2.27:2004 with amendments 1 and 2. 51. 便携式工具 TOOL - PORTABLE TYPE Drill-AS/NZS 60745.1 and AS/NZS 60745.2.1:2003Sander or polisher (other than disk types)-AS/NZS 60745.1 and AS/NZS 60745.2.4:2003.Circular saw-AS/NZS 60745.1 and AS/NZS 60745.2.5:2003 (until 25 May 2009) or AS/NZS 60745.1 andAS/NZS 60745.2.5:2007.Jig or sabre saw-AS/NZS 60745.1 and AS/NZS 60745.2.11:2003.Planer-AS/NZS 60745.1 and AS/NZS 60745.2.14:2003.Router-AS/NZS 60745.1 and AS/NZS 60745.2.17:2003.Grinder, polisher and disk type sander-AS/NZS 3100 and AS/NZS 3160 (until 20 October 2009) or AS/NZS 60745.1 and AS/NZS60745.2.3:2006.Chain saw-AS/NZS 3100 and AS/NZS 3160 (until 25 August 2009) or AS/NZS 60745.1 and AS/NZS60745.2 13:2006.Jointer-AS/NZS 3100 and AS/NZS 3160 (until 25 November 2008) or AS/NZS 60745.1 and AS/NZS60745.2 19:2005.Other-AS/NZS 3100 and AS/NZS 3160. 52. 真空清洁器 VACUUM CLEANER Hand held garden type-AS/NZS 3350.1 and AS/NZS 3350.2.2:2001 with amendment 1 (until 14 November 2010) orAS/NZS 60335.1 and AS/NZS 60335.2.100:2003Other-AS/NZS 3350.1 and AS/NZS 3350.2.2:2001with amendment 1 (until 22 November 2009) orAS/NZS 60335.1 and AS/NZS 60335.2.2:2002 with amendments 1 and 2. 53. 墙壁开关 WALL SWITCH AS/NZS 3100 and AS/NZS 3133:2008. 54. 洗衣机 WASHING MACHINE AS/NZS 3350.1 and AS/NZS 3350.2.7:2001 with amendment 1 (until 22 November 2009) orAS/NZS 60335.1 and AS/NZS 60335.2.7:2002 with amendments 1 to 3. 55.水床加热器 WATER BED HEATER AS/NZS 3350.1 and AS/NZS 3350.2.66:1997 with amendments 1 to 3 (until 3 September2011) or AS/NZS 60335.1 and AS/NZS 60335.2.66:2004. 56. 热水炉 WATER HEATER Pressure storage - AS/NZS 3350.1 and AS/NZS 3350.2.21:1999 with amendments 1 to 5 (until 22 November2009) or AS/NZS 60335.1 and AS/NZS 60335.2.21:2002 with amendments 1 and 2.Instantaneous -AS/NZS 3350.1 and AS/NZS 3350.2.35:1999 with amendments 1 and 2 (until 15 October2011) or AS/NZS 60335.1 and AS/NZS 60335.2.35:2004 with amendment 1. ·
2023-07-10 16:54:461

工程建设现场英语500句12

公用工程 UTILITY 209、Public utilities are carefully regulated here. 公用事业在这里受到仔细的管理。 210、The pressure maintained in the water main is two kilogram per square centimeter. 自来水总管里的水压保持为2公斤/平方厘米。 211、The water has been treated (softened),but it is not drinkable water. 这水经过处理(软化),但不是饮用水。 212、The common service voltage of electric power in our country is 220/380 volt. 我国普通供电电压为220/380伏。 213、There is a switch board (control panel, distribution box) mounted on the wall. 在墙上装有一个开关板(控制盘、配电箱)。 214、We have an emergency-standby electric generator with a capacity of 300 kilowatts. 我们有一台三百千瓦的事故备用发电机。 215、The substation equipped with a transformer of 500 KVA is at the south of the plant. 在工程的南边有一座装有五百千伏安变电器的变电站。 216、The pressure of the compressed air at the work site is about 7kg/cm2. 工地用压缩空气的气压约为7公斤/平方厘米。 217、There is a steam heating system (air conditioning system ) in the work-shop. 这车间里装有一个蒸汽加热系统(空气调节系统)。 218、The Post Office is in Renmin Street, it is open from 7.a.m till midnight. 邮局在人民路,从上午7点一直开到半夜。 219、You can send the letter by airmail (regular mail, registered mail). 你可以邮寄航空信(平信、挂号信)。 220、You may telephone me at ten o"clock, my telephone number is 4907. 你可以在十点中给我打一个电话,我的电话号码是4907。 221、Here is the telephone directory. 这是电话号码本。 222、The telegraphic (cable, telex) address of the guest house is 6080. 招待所的电报(海底电报、用户电报)挂号是6080。 223、You may contact the receptionist if you want to make a long distance call (to make overseas call, to send a overseas telegram). 如果你要打长途电话(海外电话、国际电报),可以与服务员联系。 224、The cargo vessel (passenger ship) docked at wharf number 5 yesterday afternoon. 货船(客轮)昨天下午停泊在5号码头。 225、There is a freeway (main highway) from here to Nanjing. 从这里到南京有一条高速公路(主要公路)。 226、There is a limousine service to the Friendship Hotel every day. 每天有开往友谊宾馆的交通车服务。 227、The quickest way to get there is to take a airplane(taxi, subway, train, bus). 到那的最快方式是乘飞机(出租车,地铁,火车,巴士)。 228、You can make your travel arrangement in any branch of the CITS or CAAC. 你可以在中国国际旅行社或中国民航总局的任何分理处办理旅行安排。 CITS-China International Travel Service 中国国际旅行社 CAAC-General Administration of Civil Aviation of China 中国民用航空总局
2023-07-10 16:54:591

BUSBAR是什么意思?

母线 是指在变电所中各级电压配电装置的连接,以及变压器等电气设备和相应配电装置的连接,大都采用矩形或圆形截面的裸导线或绞线,这统称为母线。
2023-07-10 16:55:073

请英语达人专业人士帮我翻译一下论文的摘要(中译英)

The spaceship earth goes ahead at an altitude application of surface kilomters above researches about 200 at altitudes, such is its which protects The axle placed The conditions of outer earth. It from hero to man.The boiling liquids were goes down to pressure and pressure? The spaceship is zero In such conditions, competitive price The spacesuit decompression of The products of blood boiling comfortable situation has been creation of unrelated momentary and radiation, and it is from it In.Breathing in where it solved "paintings of the spacesuit. Am j" what is Man gives off thing of thing in his safe rats harder, the greater is the labor-saving, amount of thing is boring unless it measures are taken, its thing would you the spacesuit freely conditions are introduced. MSP430F169 decide on the CPLD chip and basic principle of 3-phase regulating system, modules, circuit design and monitoring program design. The pressure of star connection system, composed of three phase voltage controlled to constitute the main circuit, The program produced CPLD chip design, the delay triggered signals back pulse transformer is driving and driven to transform; three controlled MSP430F169 microcontroller, buttons, display and reset circuit, etc, is the core of SCM system control, delay time (triggering Angle) input, output and input, and to CPLD lessons, and make sure that trigger signal time. CPLD SCM control program compiled by C430 language, CPLD program USES symbols mixed with VHDL language programming method. The main circuit by Matlab simulation design is reasonable, SCM system, CPLD design experiments, meet the design requirements. This design is triggered signals control digitalization, timing accurate, convenient, can be used to display voltage power electronic technology and experiment teaching.
2023-07-10 16:55:412

transformer中文翻译

A step-down transformer has a turns ratio less than 1 . 降压变压器的匝数比小于1。 A pnear differential transformer has three coils . 一个直线差动变压器有三个线圈。 The magic cores of transformers and other apparatus are laminated . 把变压器及其它仪器的磁心分层。 The transformer isolates the transistors with regard to d-c bias voltage . 变压器可在两个晶体管之间隔离直流偏压。 The process by which the transformer is enabled to draw the requisite amount of power is as follows . 使变压器能够从电源输入必要数量的功率的过程如下。 It is difficult to produce a very high voltage directly, by a bination of transformer and rectifier . 用变压器和整流器相配合直接得到很高的电压是困难的。 Fig. 9 shows schematically the apppcation of a differential transformer to measurement of pquid column height . 应用差动变压器测定液柱高度大致如图9所示。 The transformer substation survived the blast with relatively minor damage to the essential ponents . 经爆震波袭击后未被毁坏的变电站的重要组件受到较小的损坏。 Several distributor transformers had fallen from the poles, and secondary wires and service drops were down . 几个配电变压器从电线杆上摔下来,副线及吊饰也垂下来。 Only transformer couppng can contribute to the voltage gain of an amppfier by virtue of a stepup turns ratio . 只有放大器耦合方能通过开压匝数比提高变压器电压增益。 The differential transformer secondary windings are connected in subtractive series so that the output is zero at balance . 差功变压器的次级线圈接成反向串联,以便在平衡时输出为零。 Verification regulation of transformers turn ratio test sets 变压比电桥检定规程 Specification for flameproof transformers for use in mines 矿山用防火变压器规范 66kv double windings , on - load tap - changing transformer 66kv双绕组有载调压变压器 Instrument transformers - electronic current transformers 仪表变压器.电流变压器 Field testing of relaying current transformers 继电器用的电流变压器现场测试指南 Multi - channel dc dc converters inductors transformers 磁性元件- *** t电感器变压器 Transformer design keep pace with dc dc converter technology 转换器技术同步发展 Design of pulse transformer for 10kv igbt sopd switch 固体开关的脉冲变压器设计 Verification regulation of instrument transformer test set 互感器校验仪检定规程 Transformers , distribution , dry - type over 600 volts 干式600v以上变压器配电系统 Oil - immersed transformer series pad - mounted transformer series 油浸式变压器系列 Technology parameter of scb10 10kv power transformer Scb10系列10kv级电力变压器 With cigar pghter device and transformer of any car 可配置汽车点烟器及变压器。 A step - down transformer has a turns ratio less than 1 降压变压器的匝数比小于1 。 Terminal markings for power transformers and reactors 变压器和电抗器的端子标记 Transformers ; oil trap dn 25 ; requirements and test 变压器.集油槽dn25 .要求和试验 Occurs when transformer configuration is not pleted 转换器配置未完成时发生。 Welding transformers for portable spot welding machines 便携式点焊机用焊接变压器 Research on regeneration technology for transformer oil 变压器油再生技术的研究 110kv three windings , on - load tap - changing transformer 110kv三绕组有载调压变压器 Dry type transformer series with non - enveloped windings 非包封线圈干式变压器系列 Transformer cabis custom design available 变压器柜根据用户要求配置相应设备 Dry type transformer series with non - enveloped windings 非包封线圈干式变压器系列 When a transformer is needed as part of a connection , the 当连接中需要转换器时, 220kv three windings , on - load tap - changing transformer 220kv三绕组有载调压变压器 Guide for loading mineral - oil - immersed transformers 矿物油浸式变压器的加载指南 Corrosion - proof and oil - immersed type power transformer 防腐蚀型油浸式电力变压器 Low voice of high class wreath type power transformer 高级低噪声环型功率变压器 66kv double windings , off - load tap - changing transformer 66kv双绕组无载调压变压器 Guide for loading mineral - oil - immersed transformers 矿物油浸式变压器的加载指南 Technology parameter of scb10 35kv power transformer Scb10系列35kv级电力变压器 Safety requirements for portable arc welding transformers 小型弧焊变压器安全要求 Instrument transformers - inductive voltage transformers 仪表变压器.感应变压器 500kv three windings , on - load tap - changing transformer 500kv三绕组无载调压变压器 Used in power - transfer transformer and choke coils 转换电源用变压器和扼流圈。 Use the transformer with the controller 912v ac用随机配置的变压器,初级电压220v
2023-07-10 16:55:481

simulink中Power System Blockset模块怎么添加

版本不一样,放的地方就不一样,最简单的办法,在simulink搜索transformer模块,这个东西无论哪个版本都只有powersystem有。
2023-07-10 16:55:551

中文翻译英文

The transformer substation automation is the electrical power systemdevelopment tendency and the request. This article introduced thetransformer substation automation general structure type, specificallydiscussed the automated system function request and two equipmentprinciple of design, the transformer substation automated systemstructure, the function, the correspondence transmission network andso on. Through concentrates the pattern, the relative dispersionpattern, the lamination distribution dispersion pattern to theultrahigh voltage transformer substation automated system in and so onthe main structure pattern introduction as well as several typicalprojects experience. Along with the electric power industry rapiddevelopment, the electrical power system scale unceasingly expands,the movement way more and more complex, is more and more high to theautomated level request, unceasingly promoted the automationtechnological development. Has achieved soft hard resources sharing asfar as possible in the reliable foundation, enhanced the transformersubstation movement and the management level, achieved the transformersubstation reduces the person synergize, raises the safe operationlevel the goal.
2023-07-10 16:56:052

电工常用英语

(1) 元件设备三绕组变压器:three-column transformer ThrClnTrans 双绕组变压器:double-column transformer DblClmnTrans电容器:Capacitor并联电容器:shunt capacitor电抗器:Reactor母线:Busbar输电线:TransmissionLine发电厂:power plant断路器:Breaker刀闸(隔离开关):Isolator分接头:tap电动机:motor(2) 状态参数有功:active power无功:reactive power电流:current 容量:capacity电压:voltage档位:tap position有功损耗:reactive loss无功损耗:active loss功率因数:power-factor功率:power功角:power-angle电压等级:voltage grade空载损耗:no-load loss铁损:iron loss铜损:copper loss空载电流:no-load current 阻抗:impedance正序阻抗:positive sequence impedance负序阻抗:negative sequence impedance零序阻抗:zero sequence impedance电阻:resistor电抗:reactance电导:conductance电纳:susceptance无功负载:reactive load 或者QLoad有功负载: active load PLoad遥测:YC(telemetering)遥信:YX 励磁电流(转子电流):magnetizing current定子:stator功角:power-angle上限:upper limit下限:lower limit并列的:apposable高压: high voltage低压:low voltage中压:middle voltage电力系统 power system发电机 generator励磁 excitation励磁器 excitor电压 voltage电流 current母线 bus变压器 transformer升压变压器 step-up transformer高压侧 high side输电系统 power transmission system输电线 transmission line固定串联电容补偿fixed series capacitor compensation稳定 stability电压稳定 voltage stability功角稳定 angle stability暂态稳定 transient stability电厂 power plant能量输送 power transfer交流 AC装机容量 installed capacity电网 power system落点 drop point开关站 switch station双回同杆并架 double-circuit lines on the same tower变电站 transformer substation补偿度 degree of compensation高抗 high voltage shunt reactor无功补偿 reactive power compensation故障 fault调节 regulation裕度 magin三相故障 three phase fault 故障切除时间 fault clearing time极限切除时间 critical clearing time切机 generator triping高顶值 high limited value强行励磁 reinforced excitation线路补偿器 LDC(line drop compensation)机端 generator terminal静态 static (state)动态 dynamic (state)单机无穷大系统 one machine - infinity bus system机端电压控制 AVR电抗 reactance电阻 resistance功角 power angle有功(功率) active power无功(功率) reactive power功率因数 power factor无功电流 reactive current下降特性 droop characteristics斜率 slope额定 rating变比 ratio参考值 reference value电压互感器 PT分接头 tap下降率 droop rate仿真分析 simulation analysis传递函数 transfer function框图 block diagram受端 receive-side裕度 margin同步 synchronization失去同步 loss of synchronization阻尼 damping摇摆 swing保护断路器 circuit breaker电阻:resistance电抗:reactance阻抗:impedance电导:conductance电纳:susceptance导纳:admittance电感:inductance电容: capacitance
2023-07-10 16:56:141

power transmission是什么意思

电力传输。希望对你有帮助
2023-07-10 16:56:221

power bank是什么意思

POWER BANK 网络 移动电源; 充电宝; [例句]Analysis of the Crack Reason of Neutral Point Current Transformer in CompletePower Capacitor Bank成套电容器组中性点电流互感器开裂原因的分析power 英[u02c8pau028au0259(r)] 美[u02c8pau028au025a] n. 力量; [机] 动力,功率; 政权,权力; 强国,大国; vt. 运转; 用发动机发动; 使…有力量; vi. 靠动力行进; 快速行进;
2023-07-10 16:56:442

跪求开关电源的摘要的英文翻译,急!!!!!!!万分感谢

你在好123网上不是有个线上翻译吗?你把中文写上去自然就有了!不用这么麻烦。
2023-07-10 16:56:513

电力单位名称英文翻译

The Shanghe power supply bureau power transformation overhaul work area, the Shanghe power supply bureau power transformation movement work area, the Shanghe power supply bureau line work area, the Shanghe power supply bureau dispatch the message center, the Shanghe power supply bureau customer services center. What needs to explain: These units belong to under a Shanghe city power supply bureau"s Basic unit, the power transformation overhaul work area are responsible for the transformer substation equipment (for example transformer, isolator and so on) carry on the overhaul installment and the obviate defect, the power transformation movement work area are responsible to the transformer substation equipment carry on the daily running status the inspection, to patrol with the surveillance, the equipment cleaning work, the line work area are responsible to the transmission line erect, the transformation and the daily running status inspection patrol the work, dispatches the message center to be responsible to the jurisdiction district power equipment and the line throws transports, suspends shipment and so on to carry on the dispatch, the monitor and the safeguard dispatch instruction smooth issuing correspondence, message channel"s maintenance, the support work, the customer center adopts 95598 national electric powersThe guest takes the telephone to be responsible to receive, processing to use electricity the customer to use electricity the consultation, the breakdown to request repairs with services and so on processing, suit
2023-07-10 16:56:591

power factor是什么意思

power factorun.功率因数;功率系数;功率因素功率因子;功因;电源功率因素例句1.weaving factory because of the lower power factor, high cost, lack of confidence, with procurement.下游织造工厂因限电因素、成本高企,信心不足,随需采购。2.Power factor is calculated using the actual bullet weight and the average velocity of the three rounds fired.利用实际的弹头重量以及射击的三发平均枪口初速来计算威力系数。3.Relation between Dielectric Power Factor and Temperature in Current Transformer电流互感器介质损耗因数与温度的关系4.Ammunition used by a competitor in a match must satisfy the requirements the power factor declared.选手在比赛中所使用的弹药必须符合所公布的威力系数的限制。5.Research on constant output power factor angle control of parallel inverter并联型逆变器的定角控制
2023-07-10 16:57:071

power bank是什么意思

POWER BANK 充电宝;
2023-07-10 16:57:172

变压器用英语怎么说

  变压器是利用电磁感应的原理来改变交流电压的装置,主要功能有电压变换、电流变换、阻抗变换、隔离、稳压等。那么你知道吗?接下来跟着我来学习一下吧。   变压器的英语说法1:   transformer   变压器的英语说法2:   voltage changer   变压器相关英语表达:   mains transformer;   电源变压器   step-down transformer;   降压变压器   step-up transformer;   升压变压器   output transformer;   输出变压器   input transformer   输入变压器   变压器的英语例句:   1. He switched off the transformer and the buzzing stopped.   他关掉变压器,嗡嗡声就消失了。   2. Keep away from the transformer.   不要靠近那个变压器.   3. We traced the trouble to a faulty transformer.   我们查出故障出在一个有毛病的变压器上.   4. The transformer isolates the transistors with regard to d - c bias voltage .   变压器可在两个电晶体之间隔离直流 偏压.   5. A step - down transformer has a turns ratio less than 1.   降压变压器 的匝数比小于1.   6. The magnetic cores of transformers and other apparatus are laminated.   把变压器及其它仪器的磁心分层.   7. A linear differential transformer has three coils.   一个直线差动变压器有三个线圈.   8. Several distributor transformers had fallen from the poles, and secondary wires and service drops were down.   几个配电变压器从电线杆上摔下来, 副线及吊饰也垂下来.   9. Fig. 9 shows schematically the application of a differential transformer to measurement of liquid column height.   应用差动变压器测定液柱高度大致如图9所示.   10. The signal is fed into a filter - amplifier which is transformercoupled to the video - detector.   这个讯号送到滤波器 - 放大器,它是由变压器耦合到视讯检波器的.   11. Advanced Transformer fastening structure, the ability to short - circuit resistance.   变压器紧固结构先进, 抗短路能力强.   12. HU Jing - sheng . Transformer Economic Operation. Beijing: China Power Press, 1999.   胡景生. 变压器经济执行. 北京: 中国电力出版社, 1999.   13. The paper also points out the direction of differential relay development.   最后,本文指出了微机变压器差动保护的发展方向.   14. It is very plicated to model transformer in transient calculation.   在电磁暂态计算中,变压器是较难模拟的元件之一.   15. Caution: the soldering iron transformer is designed for short burst operation.   警告: 烙铁变压器是专为短期爆裂的运作.
2023-07-10 16:57:331

你问的power system blockset在哪里啊,急用,谢谢

版本不一样,放的地方就不一样,最简单的办法,在simulink搜索transformer模块,这个东西无论哪个版本都只有powersystem有。
2023-07-10 16:57:391

有谁知道大量电力英语方面的专业词汇 ?

电力英语词汇:)~ (1) 元件设备 三绕组变压器:three-column transformer ThrClnTrans 双绕组变压器:double-column transformer DblClmnTrans 电容器:Capacitor 并联电容器 电力电子电路 Power Electronic Circuit 电力电子电器 Power Electronic Equipment 电力电子器件 Power Electronic Devices 电力电子学 Power Electronics 电力工程 Electrical Power Engineering 电力生产技术 Technology of Electrical Power Generation 电力生产优化管理 Optimal Management of Electrical Power Generation 电力拖动基础 Fundamentals for Electrical Towage 电力拖动控制系统 Electrical Towage Control Systems 电力系统 Power Systems 电力系统电源最优化规划 Optimal Planning of Power Source in a Power System 电力系统短路 Power System Shortcuts 电力系统分析 Power System Analysis 电力系统规划 Power System Planning 电力系统过电压 Hyper-Voltage of Power Systems 电力系统继电保护原理 Power System Relay Protection 电力系统经济分析 Economical Analysis of Power Systems 电力系统经济运行 Economical Operation of Power Systems 电力系统可靠性 Power System Reliability 电力系统可靠性分析 Power System Reliability Analysis 电力系统无功补偿及应用 Non-Work Compensation in Power Systems & Applicati 电力系统谐波 Harmonious Waves in Power Systems 电力系统优化技术 Optimal Technology of Power Systems 电力系统优化设计 Optimal Designing of Power Systems 电力系统远动 Operation of Electric Systems 电力系统远动技术 Operation Technique of Electric Systems 电力系统运行 Operation of Electric Systems 电力系统自动化 Automation of Electric Systems 电力系统自动装置 Power System Automation Equipment 电路测试技术 Circuit Measurement Technology 电路测试技术基础 Fundamentals of Circuit Measurement Technology 更详细的可以看:)~ http://www.cycnet.com/cms/2004/englishcorner/translation/t20050620_23357.htm
2023-07-10 16:57:472

隔离牛(isolating transformer)

隔离牛(isolating trformer) 隔离牛就是把外界电源与最终用电部份隔离 并提供与输入电源相同的电源供应 厕所用插座 便是220v:220v的隔离牛 原理是火牛的初级与次级是两红不同的线圈 而比例是1:1 隔离牛你可以用 角-星 或 角 - 角 或 星 - 角 接法 其中星角可以阻隔外界的hormonic进入 影响你的系统 角角 只适合平衡三相380伏特用电 时常跳制(漏电跳制RCCD) 除了真正漏电 harmonic跟接触不良产生火花也会有影响 我想找一个专家的电力工程人员 比较能帮你解决问题(当然不是指一般电工) 2007-10-30 10:11:39 补充: 顺带一提 harmonic(谐波)是会影响漏电断路器的寿命 特别是美国牌子的square D 那只是名符其实的(傻瓜D) 很多时因为脚软而跳掣(即是未到达预定数值已经跳脱) 如果问题持续而且只是个别漏电断路器跳掣可以先换掉该漏电断路器 MG这个牌子会比较好 你的问题除了在电脑房会发生之外 一些大些写字楼也会出现 其中另一个解决方法是加装多一个配电箱 减少同一漏电断路器供应插座的数量 你部机(用三相three phase) 时常跳制(漏电跳制RCCD),肯定系漏电,唔知你部系乜嘢机,如果系电脑机正要用隔离牛(isolating trformer),因为有开关式电源变压器 Switching Mode Power Supply unit,呢架嘢多少都会漏电既,仲有千祈唔好用直流高电压绝缘测试(insulating test),会烧机架,如果唔系Switching Mode Power Supply unit,就用直流高电压绝缘测试 (500V / 1000V insulating test),好快你就可以揾到问题既所在,医病要断根,一次过搞掂。
2023-07-10 16:58:051

翻译:火线,地线和零线

IEC,BS,GB标准:L:live 火线N: neutral 中线E(PE): earth(protective earth)地线美国标准:火线:hot中线:neutral地线:ground
2023-07-10 16:58:144

求课程描述翻译~ 课程名称:电力系统分析Power System Analysis

看了楼上,我觉得自己以后没准也能拿这个当副业玩玩~----------------------------------Course description:This course presents the foundations of electric power systems analysis after an initial review of single and three-phase power, complex power and transformers. Topics include per unit quantities, generators, transmission line models, transformer models, short-circuit analysis, load flow, and power systems economics.Course main content:1.Review of power system networks, complex power, and per units 2.Generator, load, transformer, and line models 3. Network matrices, Power flow techniques- solving by the Gauss-Seidel method, by the Newton-Raphson method4.Fault studies: bus-impedance matrix , Symmetrical components and the sequence impedances ,Synchronous machine dynamics and the swing equation
2023-07-10 16:58:211