壓縮包內(nèi)含有CAD圖紙和說(shuō)明書,均可直接下載獲得文件，所見(jiàn)所得，電腦查看更方便。Q 197216396 或 11970985
摘要
隨著科學(xué)技術(shù)的飛速發(fā)展，繼電保護(hù)器在35kV變電站中的應(yīng)用也越來(lái)越廣泛，它不僅保護(hù)著設(shè)備本身的安全，而且還保障了生產(chǎn)的正常進(jìn)行，因此，做好繼電保護(hù)的設(shè)計(jì)對(duì)于保障設(shè)備安全和生產(chǎn)的正常進(jìn)行是十分重要的。繼電保護(hù)裝置廣泛應(yīng)用于電力系統(tǒng)、農(nóng)網(wǎng)和小型發(fā)電系統(tǒng)，是電網(wǎng)及電氣設(shè)備安全可靠運(yùn)行的保證。加強(qiáng)繼電保護(hù)管理，健全溝通渠道，加強(qiáng)繼電保護(hù)定值整定檔案管理是提高繼電保護(hù)定值整定的必要措施。
本論文圍繞35kV變電站的繼電保護(hù)算展開分析和討論，重點(diǎn)設(shè)計(jì)了電力系統(tǒng)基本常識(shí)以及需要系數(shù)法計(jì)算負(fù)荷、電力網(wǎng)接線方案的選擇原則、短路電流的計(jì)算、變壓器和線路的繼電保護(hù)配置以及無(wú)功功率補(bǔ)償?shù)?。同時(shí)介紹了主設(shè)備差動(dòng)保護(hù)的整定算法，做出短路點(diǎn)的等效電路圖，對(duì)設(shè)備保護(hù)進(jìn)行了相應(yīng)的選擇與校驗(yàn)。通過(guò)進(jìn)行繼電保護(hù)的整定和計(jì)算，進(jìn)而達(dá)到保護(hù)設(shè)備和安全生產(chǎn)的目的。
關(guān)鍵詞：變電所；負(fù)荷計(jì)算；短路電流
I
Abstract
With the rapid development of science and technology, application of 35kV substation protection equipment is more and more widely, not only can safety equipment to protect themselves, but also to protect the normal production. Therefore, in normal production equipment safety and protection of the whole set of protection is very important. The protection device is widely used in power system, power system and rural small network are the safe and reliable operation of power network and electrical equipment.. Strengthen protection management, improve communication channels, strengthen the protection of fixed value management is a necessary protective measures to improve the setting value.
The protection of the 35kV substation setting calculation and analysis and discussion, pay attention to calculate the basic knowledge of power system load coefficient method and need to select the grid connection scheme of the principle of calculation of short circuit current, relay protection of transformer and line, no power compensation design. The master of the setting algorithm of differential protection is introduced, and the short-circuit point is chosen and the equivalent circuit diagram of the protection device is chosen and the main wiring design is presented.. By comparing the advantages and disadvantages of the respective connection types, the main connection substations are determined.
Keywords: substation, ；oad calculation； short-circuit current
2