0245-某中外合資機械廠變電所及配電系統(tǒng)設計【全套9張CAD圖】
0245-某中外合資機械廠變電所及配電系統(tǒng)設計【全套9張CAD圖】,全套9張CAD圖,中外合資,機械廠,變電所,配電,系統(tǒng),設計,全套,cad
浙江工業(yè)大學浙西分校信電系畢業(yè)設計
摘要
根據(jù)我國能源利用情況，供電設計的原則要求，按照設計任務書的詳細要求，對該廠進行總體分析，然后著手對該中外合資機械廠的變電所及配電系統(tǒng)進行設計。在指導老師的悉心指導下、在同組成員盡心幫助下，同時借助不少參考文獻，完成該次設計。
首先，對全廠的負荷進行系統(tǒng)計算，為確定供電系統(tǒng)的電力變壓器、各種開關電器的容量、電力線路的截面和變電所的所址等提供依據(jù)。并且對其進行無功補償，以減少變壓器、電力線路、開關設備的功率損耗，從而減少電器元件的規(guī)格，降低它的功率損耗和電壓損耗，減少投資。內(nèi)容主要在第一章中體現(xiàn)。
其次，根據(jù)本廠的實際情況和經(jīng)濟技術(shù)比較電力變壓器，確定變電所的所址、類型以及其主接線方案，其中包括變壓器容量以及臺數(shù)的確定，全廠配電系統(tǒng)的設計。內(nèi)容包括第二、三、五、六章。
然后，按符合情況系統(tǒng)地對廠區(qū)進行設計，為了校驗一次設備的短路穩(wěn)定度，開關電器的斷流能力及電流保護裝置的靈敏度，整定電流速斷保護裝置的動作電流，進行短路電流的計算，進而選擇了電力線路和高低壓電氣設備。內(nèi)容包括第四、七章。
最后，確定全廠配電系統(tǒng)的防雷接地系統(tǒng)設計。內(nèi)容于第八章作比較詳細的介紹。
關鍵詞：電力變壓器、無功補償、功率損耗、短路穩(wěn)定度、斷流能力、靈敏度、動作電流、配電系統(tǒng)
Abstract
According to our country energy use situation, the power supply design principle request, according to the design project description detailed request, carries on the overall analysis to this factory, then begins to this chinese-foreign joint venture machine shop transformer substation and the electrical power distribution system carries on the design. In instructs under teacher's devotedly instruction, in with the component member with all one's heart help under, simultaneously draws support from many reference, completes this design.
First, carries on the system computation to entire factory load, for the determination power supply system power transformer, each kind of switch electric appliance capacity, the power circuit section and the transformer substation institute site and so on provides the basis. And carries on the idle work to it to compensate, reduces the transformer, the power circuit, the switching gear power loss, thus the reduced electric appliance part specification, reduces its power loss and the voltage loses, reduces the investment. The content mainly manifests in the first chapter.
Next, according to this factory actual situation and economical technical comparison power transformer, definite transformer substation institute site, type by and its main wiring plan, including transformer capacity as well as number determination, entire factory electrical power distribution system design. Content including second, three, five, six chapters.
Then, according to conforms to the situation systematically to carry on the design to the factory district, in order to verify a time of equipment to short-circuit the stability, the switch electric appliance blocks the flow the ability and the electric current protective device sensitivity, the electricity speed of flow breaks the protective device the working current, carries on the short-circuit current the computation, then has chosen the power circuit and the high and low pressure electrical equipment. Content including fourth, seven chapters.
Finally, determines entire factory electrical power distribution system the anti-radar earth system design. The content makes the quite detailed introduction to the eighth chapter.
Key word: The load, the power transformer, the idle work compensate, the power loss, short-circuits the stability, blocks the flow the ability, the sensitivity, the working current, the electrical power distribution system
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