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確保正確的經(jīng)濟(jì)和功能運(yùn)行的重要性
將安裝作為一個(gè)整體，并將引起的任何問(wèn)題降至低
異常操作條件和/或故障。
本分析討論了不同設(shè)備之間的協(xié)調(diào)
致力于保護(hù)區(qū)域和特定組件，以期：
•始終保證人員和安裝的安全；
•識(shí)別并快速排除受問(wèn)題影響的區(qū)域
不分青紅皂白地采取行動(dòng)，從而減少可用于
網(wǎng)絡(luò)的其余部分；
•包含故障對(duì)網(wǎng)絡(luò)其他完整部分的影響
（電壓驟降，旋轉(zhuǎn)機(jī)器失去穩(wěn)定性）；
•減少受影響區(qū)域內(nèi)組件的應(yīng)力和損壞；
•確保具有饋電電壓的服務(wù)的連續(xù)性；
•確保在發(fā)生任何故障時(shí)提供足夠的備份
負(fù)責(zé)打開(kāi)電路的保護(hù)裝置；
•為員工和管理系統(tǒng)提供他們需要的信息
盡快恢復(fù)服務(wù)，并盡量減少對(duì)
網(wǎng)絡(luò)的其余部分；
•實(shí)現(xiàn)可靠性、簡(jiǎn)單性和成本之間的有效折衷
有效性
更準(zhǔn)確地說(shuō)，有效的保護(hù)系統(tǒng)必須能夠：
•了解發(fā)生了什么以及發(fā)生在哪里，并加以區(qū)別
在異常但可容忍的情況和給定范圍內(nèi)的故障之間
影響區(qū)，避免不必要的跳閘和
不合理地?cái)嚅_(kāi)系統(tǒng)的健全部分；
•盡快采取行動(dòng)控制損壞（破壞、加速
老化，…），保護(hù)電源的連續(xù)性和穩(wěn)定性。
合適的解決方案來(lái)自這兩者之間的折衷
對(duì)立需要準(zhǔn)確識(shí)別故障并迅速采取行動(dòng)，這是明確的
在功能上，這兩個(gè)要求中的哪一個(gè)優(yōu)先。

importance both to ensure the correct economic and functional operation of the installation as a whole and to reduce to a minimum any problem caused by anomalous operating conditions and/or malfunctions. The present analysis discusses the coordination between the different devices dedicated to the protection of zones and specific components with a view to: • guaranteeing safety for people and installation at all times; • identifying and rapidly excluding only the zone affected by a problem, instead of taking indiscriminate actions and thus reducing the energy available to the rest of the network; • containing the effects of a malfunction on other intact parts of the network (voltage dips, loss of stability in the rotating machines); • reducing the stress on components and damage in the affected zone; • ensuring the continuity of the service with a good quality feeding voltage; • guaranteeing an adequate back-up in the event of any malfunction of the protective device responsible for opening the circuit; • providing staff and management systems with the information they need to restore the service as rapidly as possible and with a minimal disturbance to the rest of the network; • achieving a valid compromise between reliability, simplicity and cost effectiveness. To be more precise, a valid protection system must be able to: • understand what has happened and where it has happened, discriminating between situations that are anomalous but tolerable and faults within a given zone of influence, avoiding unnecessary tripping and the consequent unjustified disconnection of a sound part of the system; • take action as rapidly as possible to contain damage (destruction, accelerated ageing, ...), safeguarding the continuity and stability of the power supply. The most suitable solution derives from a compromise between these two opposing needs-to identify precisely the fault and to act rapidly - and is defined in function of which of these two requirements takes priority.