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摘要:隨著工廠自動化程度的提高，合理的工廠供電系統(tǒng)變得越來越重要，不僅可以保證工廠的正常生產(chǎn)，還能大大的節(jié)約電能降低產(chǎn)品的成本，提高生產(chǎn)效率。 此工廠供電設計包括：負荷的計算及無功功率的補償；變電所主變壓器臺數(shù)和容量、型式的確定；變電所主接線方案的選擇；進出線的選擇；短路計算和開關設備的選擇；二次回路方案的確定及繼電器保護的選擇和整定；防雷保護與接地裝置的設計；車間配電線路布線方案的確定；線路導線及其配電設備和保護設備的選擇，電氣主接線的設計。 在設計中采用并聯(lián)電容器的方法來補償無功功率，以減少供電系統(tǒng)的電能損耗和電壓損失，同時提高了供電電壓的質(zhì)量。從而使整個供電系統(tǒng)更具有其可靠性和靈活性。 關鍵詞 變電所；短路計算；電氣設備選擇；繼電保護
Abstract:With the development of factory automation，power supply system becomes more and more important. It not only can guarantee normal production of the factory ,but also reduce the cost of the products, save the electrical energy and increase productivity. The system nucleus of factory supplies power is transformer．It is very important to design and build one safe economical substation．This factory supplies power and designs including: Calculation of load and compensation of the inactive power; Transformer substation main voltage transformer platform count and capacity , sureness of pattern; Mainly wire the choice of the scheme in the transformer substation; Pass in and out the choice of the thread; Choice of shorting out and calculating and switchgear ; Two return circuit sureness and choice that relay protect of scheme exactly make; Defend the thunder and protect the design with the earth device ; The workshop distribution line connects up the sureness of the scheme. Circuit wire and distribution equipment and protecting the choice of the equipment; And the electric design that lighted, there is drawing of circuit diagram. At the same time the design uses shunt capacitor to compensation reactive power to decrease energy losses and voltage losses in the power supply system.It can also improve the quality of the power supply voltage. So the whole design of the power supply system becomes more reliability and flexibility. Keywords Substation Short circuit calculation Electrical equipment Relay protection |
