電化保護 的英文怎麼說
中文拼音 [diànhuàbǎohù]
電化保護
英文
electrochemical protection-
Exchange non - clearane metal oxidate matter arrester is suitabe for the voltage protection of transformer switch cupboard, vacuum switch etc
交流無間隙金屬氧化物避雷器，適用於變壓器、配電屏、開關櫃、真空開關、輸電線路、電力計量箱、並聯補償電容器、旋轉電機等電壓保護。It is designed for a power plant in order to reduce the workload of the relay protection workers, decrease the percentage of protection device ' s false action, and increase the work efficiency of the device in power plants
可視化的發電廠保護整定綜合系統是為減輕發電廠繼電保護工作人員的勞動強度，降低保護設備的不正確動作率，提高發電廠設備的運行效率而開發。Graphical symbols in electrical diagrams for relays, protection and automation equipment of power system
電力系統繼電器保護及自動化裝置電氣簡圖用圖形符號General letter symbols in electrotechnology for relays, protection and automation equipment of power system
電力系統繼電器保護及自動化裝置常用電氣技術的文字元號The shorter the interval between the two pulses of the current wave, the fewer strikes the varistors can endure. at the same time, the dc ljima changes fast - slowly - fast alone with the experiment continuing. microstructual disorder, such as variations in the height of the electrostatic potential at grain boundaries and electrode protrusions into the zinc oxide varistors, causes substantial temperature rise in a microscopic region around the defect and is the source for failure
雷電的多重閃擊對雷電過電壓保護器件的影響更加嚴重，本文首次採用不同間歇時間雙脈沖電流沖擊對氧化鋅電阻進行了多次試驗，試驗表明：氧化鋅電阻在雙脈沖電流沖擊下更容易出現老化破壞現象，間歇時間越短，電阻能耐受的沖擊次數越少；此外，直流u _ （ 1ma ）值隨沖擊次數的增加具有快一慢一快的下降過程。Requirements analysis, system frame design, algorithm design, code compile and software test of protection setting verifying and analysis system of sub power system are all accomplished. main research work of this paper is concentrated on three respects : ( 1 ) knowledge expressing of mathematic model and physics model of power system using relation database and object oriented language, ( 2 ) new methods of in - substation topology and net topology analysis based on topology of hierarchical model, ( 3 ) father research of protection coordination considering difference of protection setting verifying and fixing
論文提出了進行保護定值在線校驗的意義和方法，並按照軟體工程的規范化開發的要求，完成了滄州地區電網保護定值在線校驗分析系統的需求分析、系統框架設計、演算法設計、代碼編寫和軟體測試的大部分工作，主要的研究工作集中在： （ 1 ）利用關系數據庫和面向對象語言對電網進行物理模型和數學模型上的知識表示。The market will be served with power protection solution which includes ups and ips used for telecom, manufacturing, financial, energy, petrol - chemicals, healthcare and transportation
公司還將為市場提供電源保護解決方案，包括應用於電信、製造、金融、能源、石油化工、醫療和運輸等領域的ups和ips產品。The market will be served with power protection solution which includes tps, ups and ips used for telecom, manufacturing, financial, energy, petrol - chemicals, healthcare and transportation
公司還將為市場提供電源保護解決方案，包括應用於電信、製造、金融、能源、石油化工、醫療和運輸等領域的tps ， ups和ips產品。The market will be served through a wide range of power protection solutions, including ups and ips for use in telecoms, manufacturing, financial, energy, petrol - chemical, health - care and transportation applications
公司還將為市場提供電源保護解決方案，包括應用於電信、製造、金融、能源、石油化工、醫療和運輸等領域的ups和ips產品。Compared with the old product, the new st spd has a higher maximum discharge current and nominal discharge current, better voltage protection that can be used for flexible failure indication. its size is in consistence with our current c65 circuit breaker, which makes it more beautiful when mounted together in a panel
此次發布會上發布另一款產品- st系列固定式電涌保護器也有了更為強大的功能：首先，它的最大放電電流和標稱放電電流更大，電壓保護水平更好，這使得產品持續運行時間更長，不易老化。A new experimental and training system with modular hardware and software is introduced in this paper based on the research and analysis of the principle, structure and realizing method of microprocessor relay protection and safety automation equipment and the constitutes of cut - up arrangement substation integrated automation at home and abroad whose function includes relay protection experiment, such as current protection, distance protection and so on, and substation integrated automation experiment etc. the structure and function of the experimental and training system are introduced in detail, the principle and function of the hardware section are analyzed, and the method of software designing and programming is concisely set forward. in this paper, a new communication mode between computer and the rs - 485 bus and the can bus by using the computer ' s epp port and an effective method of software ' s remote downloading are brought forward
論文在研究和分析了國內外微機保護和安全自動裝置的原理、結構和實現方法以及分散分散式變電站綜合自動化系統構成的基礎上，開發了一種硬體和軟體模塊化，能實現電流保護、距離保護、故障錄波等多種繼電保護和安全自動裝置功能以及變電站綜合自動化功能的實驗培訓系統，詳細介紹了整個實驗培訓系統的結構和功能，分析了硬體部分的原理和作用，還簡要闡述了整個軟體編制的大體方法，並提出了一種利用計算機的epp口實現上位機與rs - 485總線和can總線通信的新型通信方式，提出了一種利用psd913f2的雙flash的特點進行軟體的遠程在線下載的方法。At the same time, these new motor protections can record and analyse the faults. further more, they can be connected by a network, for the purpose of being easily contolled. and, this dirction of development has been the major direction of this relm
這種新型保護系統與傳統的保護系統相比，具有強大的邏輯分析與處理功能、可兼有故障記錄與故障分析功能、易於實現網路化管理等顯著的優點，成為當前電機保護裝置的主要發展方向。Moa is kind of necessary over - voltage protector for safety running in electrical power system, it ' s used for prevent the equipment against the damage of atmosphere and operating over - voltage without gaps is belong to the third dynasty product, it ' s recognized as the up - to - data over - voltage protector, this kind of product is made up of zinc oxide films and polymer housing for example sr, epdm, hdpe it has features of small volume, simple structure, light height, pololution - prool and non - detonation and is suitable to be usde in the densely populated city
避雷器是電力系統安全運行不可缺少的過電壓保護產品，用以保護電器設備免遭大氧過電壓和操作過電壓的損害，而復合外套無間隙氧化鋅避雷器是屬于避雷器第三產品，是當今各項性能最好的產品，其核心元件電阻片全部採用氧化鋅閥片，而外殼材料是採用復合有機材料，如硅橡膠（ sr ） ，改性三元乙丙橡膠（ epdm ）高密度聚乙烯（ hdpe ）等，它具有體積小，結構簡單，重量輕，耐污積強，防爆等優點，最適合人口密度城市中使用。In chapter three, based on the analysis of the restricted factor of high frequency and the latest research achievements, it puts forward and designs the integrity structure of phase shifting pwm soft switching high voltage invert power supply. the main circuit, driving circuit and high voltage high frequency transformer are discussed in detail in this chapter
在分析了限制逆變電源高頻化因素的基礎上，綜合了軟開關技術的最新研究成果，本文在第三章提出並設計了移相式pwm軟開關高壓逆變電源的整體結構，對其中的主電路、驅動電路、保護電路和高壓高頻功率變壓器作了詳實的分析與設計。The effect of dg on the relay protection and automation of the distribution network is discussed in the aspects of 3 - sectional current protection based on circuit breakers, feeder protection based on reclosures, and distribution network automation protection based on ftu
針對基於斷路器的三段式電流保護、基於重合器等自動化電器的饋線保護以及基於ftu的配網自動化保護方案，探討了分散式發電對配電網繼電保護以及自動化的影響。The recursive criterion of transient current protection based on mallat wavelet transform is presented in order to meet the real - time demands. the reserch shows deficiency existed in the prevenient principle of transient current protection, so a new improved scheme of transient current protection is proposed. the characteristics of transient protection at different bus distribution capacitance is also analysed in this thesis. the study shows that operate of transient protection is correct when the bus distribution capacitance change. other conclusion include : the trip of transient protection must be locked when the power circuit breaker of transimission line operated, because the trip is incorrect at this time ; the features of transient current and it ' s energy is different between the fault and thunder over - voltage in transimission line, and them can be identified ; the ratio of high frequency component of current in serise capaciters compensation line, svc and hvdc system is far little than fault transient current, so all of them do not affect the working of trasient current protection
應用功率譜估計方法討論了故障高頻暫態噪聲信號在頻率軸上的分佈情況，利用功率譜分析結果實現的非參數化系統辨識方法研究了母線分佈電容對電流高頻暫態信號的衰減特性。論文的後半部分（第五，六，七章）著重分析了現有基於故障電流的暫態保護原理和判據存在的問題，提出了新的實現方案，並討論了暫態電流保護的運行性能。利用多分辨分析和小波分解快速演算法構成的遞推暫態保護判據，可以準確區分故障線路和非故障線路，實現超高速暫態電流保護，計算更為簡單方便，計算速度更快。Mov components fo low - voltage surge protective devices - part 331 : specification for metal oxide varistors
低壓電涌保護裝置用元部件.第331部分:金屬氧化物變阻器規范The fast development of the electric power industry makes the scale of power network larger and larger, and its network more complex. the result of this is that the power network becomes a complex multiloop network, in addition to the variety of operation and the interleaving of voltage grades. such these situations bring forward much difficulty to the calculation and management by traditional manual operation of relay protective settings
隨著電力系統的飛速發展，電網規模日益擴大、網路結構日趨復雜，網路呈現各種接線並存的復雜環網，再加上系統運行方式的變化多樣，各種電壓等級互相交錯，都給現有的傳統手工作業方式的電網保護整定計算和定值管理帶來了很大困難。With the development of the electric industry and the rapid increasing of the wastage of the power, the effect of the low - voltage circuit breaker on the power supply and the circuit protection is more and more important. it was required that the circuit breaker has enough short circuit breaking capacity and some intelligent functions
隨著我國電力工業的發展和用電量的猛增，低壓斷路器在配電和保護線路中起著日益重要的作用，要求它具備很大的短路電流分斷能力，實現選擇性保護和供電安全，同時具有一定的智能化功能。Low voltage surge protective devices - specification for metal oxide varistors
低壓電涌保護裝置.金屬氧化物變阻器規范分享友人