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 | 論文字數(shù)：14281 |  | |
| 折扣與優(yōu)惠：團購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要:電力系統(tǒng)是由發(fā)電、變電、輸電、供電、配電、用電等設備和技術(shù)組成的一個將一次能源轉(zhuǎn)換為電能的統(tǒng)一系統(tǒng)。電能是現(xiàn)代社會中最重要、也是最為方便的能源。而發(fā)電廠正是把其他形式的能量轉(zhuǎn)換為電能，電能經(jīng)過變壓器和不同電壓等級的輸電線路輸送并被分配給用戶，再通過各種用電設備轉(zhuǎn)換為適合用戶需要的其他形式的能量。再輸送電能的過程中，電力系統(tǒng)希望線路有比較好的可靠性，因此在電力系統(tǒng)受到外界干擾時，保護線路的各種繼電裝置應該有比較可靠的、及時的保護動作，從而切斷故障點降低電力系統(tǒng)供電范圍。電力系統(tǒng)繼電保護就是為達到這個目的而設置的。 本次繼電保護設計的是35kV線路電網(wǎng)的電流保護配置及整定計算、電力保護。本文首先介紹了此次設計要點，根據(jù)給定35kV網(wǎng)絡的接線圖及參數(shù)，對短路電流進行整定計算，制定出反應其輸電線路上短路故障的繼電保護配置方案。通過對所配置的繼電保護進行整定計算和校驗，論證繼電保護配置的正確性。 關(guān)鍵詞：短路電流；整定計算；35kV線路繼電保護；變壓器繼電保護
ABSTRACT:Power system is by power generation, substation, transmission, power supply, power distribution, electrical equipment and technology consisting of a convert primary energy to the unification of the power system. Electricity is the most important in the modern society, is also the most convenient sources of energy. And power plants is the other forms of energy converted to electrical energy, electric energy through the transformer and different voltage grade of transmission lines and is assigned to the user, then converted to through a variety of electric equipment is suitable for other forms of energy to meet the needs of users. Again in the process of transmission power, the electric power system hope that line has a good reliability, so in electric power system is outside interference, protection circuit of relay device should have more reliable and timely protection movement, thereby cutting off fault point reduce electricity . The relay protection design of 35 kV line current protection configuration and setting calculation of power grid, power protection. At first, this paper introduces the design key points, according to a given 35 kV network wiring diagram and the parameters, to setting calculation of short-circuit current, to develop a response to the fault on the transmission line relay protection configuration scheme. Based on the configuration of relay protection setting calculation and checking, demonstrate the correctness of the relay protection configuration. Keywords：Short circuit current; Setting calculation; 35 kV line protection; Power transformer protection. |
