需要金幣： 1000 個金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：18663 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:變壓器作為電力系統(tǒng)中重要的設(shè)備之一，其安全運行關(guān)系到整個電力系統(tǒng)在供電方面是否能長期穩(wěn)定的工作起到至關(guān)重要的作用。隨著電力系統(tǒng)發(fā)展，特別是在創(chuàng)新方面，新材料、新工藝的發(fā)展，對變壓器的各個方面都有很高的要求，如在變壓器的容量和工作的穩(wěn)定性，而在對變壓器的保護(hù)的快速性和可靠性上也提出了更高的要求。 變壓器的保護(hù)中，其主保護(hù)通常會選擇差動保護(hù)，差動保護(hù)是反應(yīng)其內(nèi)部故障并起到保護(hù)作用，但是差動保護(hù)不能反應(yīng)變壓器外部故障，所以通常選擇瓦斯保護(hù)來與差動保護(hù)共同作用，瓦斯保護(hù)是能夠在變壓器的外部故障起到保護(hù)作用。在本文中對現(xiàn)有的變壓器的保護(hù)：差動保護(hù)、瓦斯保護(hù)和其后備保護(hù)作了一個簡要的介紹。但是由于變壓器的特殊性，變壓器保護(hù)動作的正確率、拒動和誤動事件時有發(fā)生，因此，我們迫切需要研究一種新的變壓保護(hù)方法來解決一系列的存在問題。 近年，隨著技術(shù)的發(fā)展，計算機(jī)化、網(wǎng)絡(luò)化和智能化的普遍應(yīng)用，微機(jī)保護(hù)在變壓器保護(hù)中成為了主要的保護(hù)方法。為了能夠更好地完成此設(shè)計，本文對變壓器保護(hù)的各種保護(hù)原理及作用和主要參數(shù)整定上作了一個分析，也對微機(jī)保護(hù)作了一個簡要的概述。 關(guān)鍵字：變壓器保護(hù)；差動保護(hù)；微機(jī)保護(hù)
ABSTRACT:Transformer, as one of the important equipment in the power system, the safe operation of the relationship to the whole power system can work steady in a long-term in power play a crucial role. With the development of electric power system, especially in innovation, the development of new materials, new technology, have very high requirements on all aspects of the transformer, such as in the capacity of transformer and the stability of work, and in the rapidity and reliability of transformer protection are also put forward higher request. Transformer protection, the main protection usually choose differential protection, differential protection is the reaction and the internal fault protection, but not reflect transformer differential protection external fault, so choose the gas protection to jointly with the differential protection, gas protection is to be able to in the external fault of transformer protection. In this paper the existing transformer protection, differential protection, gas protection and backup protection makes a brief introduction. But due to the particularity of the transformer, transformer protection action of the time, refusing action and error action events occurred frequently, therefore, we urgently need to study a new transformer protection method to solve a series of problems. In recent years, with the development of technology, computerized, networked and intelligent universal application of microcomputer protection in transformer protection becomes the main protection methods. In order to better complete the design, in this paper, the transformer protection principle and the function of all kinds of protection and the main parameter setting and a analysis, also made a brief overview of microcomputer protection. Keywords： Transformer protection; Differential protection; Microcomputer Protection |
