[外文翻譯]變電站系統(tǒng)過電壓防護(hù)技術(shù)/Substation system over-voltage protection technology
內(nèi)包含中文翻譯和英文原文，內(nèi)容完善， 建議下載閱覽。

①中文頁數(shù) 5

中文字?jǐn)?shù) 4129

②英文頁數(shù) 7

英文字?jǐn)?shù) 13847

③ 摘要
近年來，變電站的通信、通信系統(tǒng)、繼電保護(hù)系統(tǒng)、后臺管理模塊經(jīng)常發(fā)生過電壓損毀事件，究其原因主要是其相關(guān)系統(tǒng)和弱電產(chǎn)品過電壓防護(hù)水平較弱，甚至根本沒有過電壓防范技術(shù)措施，其后果對電網(wǎng)的安全運(yùn)行帶來了較大負(fù)面影響。隨著綜合自動化系統(tǒng)和通信自動化系統(tǒng)等二次弱電系統(tǒng)在變電站的廣泛應(yīng)用，這類電子系統(tǒng)(設(shè)備)元器件的集成度愈來愈高，信息存儲量愈來愈大，速度和精度不斷提高，而工作電壓只有幾伏，信息電流僅為微安級，因而對外界干擾極其敏感，特別對雷電等電磁脈沖和過電壓的耐受能力很低。當(dāng)雷電等過電壓和伴隨的電磁場達(dá)到某一閥值時，輕則引起系統(tǒng)失靈，重則導(dǎo)致設(shè)備或其元器件永久性損壞。盡管雷電直擊電子系統(tǒng)(設(shè)備)的可能性不大，但是雷擊附近大地、建筑物、交流供電線路和空中雷云放電時直接形成的，或者由于靜電感應(yīng)及電磁感應(yīng)形成的沖擊過電壓，都有可能通過與之相連的電力線路、信號線路或接地系統(tǒng)，通過各種接口，以傳導(dǎo)、耦合、輻射等形式，侵入電子系統(tǒng)(設(shè)備)并釀成嚴(yán)重的干擾或事故。因此，加強(qiáng)和改進(jìn)電子系統(tǒng)(設(shè)備)的防護(hù)，盡量減小其遭受雷電等沖擊干擾損害造成的直接損失和間接損失，已成為當(dāng)今亟待解決的問題

In recent years, the substation communications, communications systems, protection systems, background management module frequent over-voltage damage, the main reason for this is weak and its related systems products over-voltage protection level is weak, or no guard against over-voltage Technical measures, the consequences for the safe operation of power grids bring about a greater negative impact. With integrated automation systems and automation systems such as communication systems in the substation weak secondary by the wider use of such electronic systems (equipment) components of the integrated more and more, the growing volume of information storage, speed and accuracy of the Increased and operates only a few volts, current information only microamp level, thus extremely sensitive to outside interference, especially the lightning and electromagnetic pulse, such as over-voltage tolerance is low. When thunder and lightning, such as over-voltage and accompanied by the electromagnetic fields reach a certain threshold, ranging from system failure caused, resulted in heavy equipment or permanent damage to its components. Despite the thunder and lightning viewpoint of electronic systems (equipment) is unlikely, but lightning strike near the land, buildings, communication and air supply line directly Leiyun discharge form, or because of electrostatic induction and the impact of electromagnetic induction formation of over-voltage, There might be connected to the power lines, signal lines or grounding system, through various interfaces to transfer, coupling, radiation and other forms of invasive electronic system (equipment) and lead to serious disturbances or incidents. Therefore, strengthening and improving the electronic system (equipment) protection, to minimize the impact of interference by lightning and other damage caused direct losses and indirect losses, has become the urgent need to solve the problem.

④關(guān)鍵字 防護(hù)技術(shù)/protection tech