需要金幣： 1000 個(gè)金幣 |
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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)：14462 |  | |
| 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:由于經(jīng)濟(jì)的發(fā)展和現(xiàn)代工業(yè)建設(shè)的崛起，供電系統(tǒng)的設(shè)計(jì)也越來越全面、越來越系統(tǒng)化，工廠用電量也在迅速地增長(zhǎng)，因此對(duì)電能質(zhì)量、技術(shù)經(jīng)濟(jì)狀況、供電的可靠性等指標(biāo)的要求也日益提高，從而對(duì)供電設(shè)計(jì)也要求更完善、全面。城市供電系統(tǒng)的核心部分是變電站。因此，設(shè)計(jì)和建造一個(gè)安全、經(jīng)濟(jì)的變電站，是十分重要的。 本變電站設(shè)計(jì)除了注重變電站設(shè)計(jì)的基本計(jì)算外，對(duì)于主接線的選擇與論證等都作了充分的說明，其主要內(nèi)容包括：變電站主接線方案的選擇，進(jìn)出線的選擇；變電站主變壓器臺(tái)數(shù)、容量和型式的確定；短路點(diǎn)的確定與短路電流的計(jì)算，電氣設(shè)備的選擇（斷路器，隔離開關(guān)，電流互感器，電壓互感器，避雷器）；配電裝置設(shè)計(jì)和總平面布置；防雷保護(hù)與接地系統(tǒng)的設(shè)計(jì)。同時(shí)按照電力系統(tǒng)相關(guān)的圖紙要求繪制了兩張圖紙，包括：電氣主接線圖和電氣總平面布置圖。 關(guān)鍵詞 降壓變電站；電氣主接線；電氣設(shè)備；電氣總平
Abstract:With the development of economy and the rise of modern industrial building,power supply system designs also more and more comprehensive,more systematic,plant growth rapidly,so the power quality,technical and economic conditions,power supply reliability requirements are also increasing,thus the power supply design also requires more perfect,comprehensive.The core part of the city power supply system of the substation.Therefore,the design and construction of a security,economic substation,is very important. The substation design in addition to focus on the basic calculation of substation main wiring design, for the selection and demonstration have been fully described, its main content includes: the choice of main wiring scheme of substation, out line choice; Determination of substation main transformer number, capacity and type; calculation of short-circuit point and short-circuit current, the choice of electrical equipment (circuit breaker, isolating switch, current transformer, voltage transformer, arrester); power distribution equipment design and layout; lightning protection and grounding system design.At the same time, according to the power system related drawings drawn two drawings, includes: the main electrical wiring diagram and electrical general layout plan. Keywords Step-down substation Main electrical connections Electrical equipment Electrical sheet arrangement |
