真空斷路器的設(shè)計(jì)

電子機(jī)電論文編號:JD575 包括設(shè)計(jì)圖,論文字?jǐn)?shù):17282,頁數(shù):30

真空斷路器的電氣設(shè)計(jì)

目    錄
摘要………………………………………………………………………………………I
第一章  緒論……………………………………………………………………………1
1.1 斷路器的發(fā)展概況………………………………………………………………1
1.2 真空斷路器的特點(diǎn)………………………………………………………………2
1.3 產(chǎn)品型號及意義…………………………………………………………………4
第二章  真空滅弧室的設(shè)計(jì)……………………………………………………………5
2.1 外殼材料的選擇…………………………………………………………………5
2.2 真空電弧…………………………………………………………………………6
2.3 真空擊穿…………………………………………………………………………7
2.4 滅弧原理…………………………………………………………………………7
2.5 真空滅弧室的過電壓保護(hù)………………………………………………………7
2.6 真空和真空度……………………………………………………………………8
2.7 波紋管屏蔽罩……………………………………………………………………8
2.8 其它零部件………………………………………………………………………9
2.9 真空滅弧室的壽命………………………………………………………………10
第三章  主回路的設(shè)計(jì) 觸頭設(shè)計(jì) ……………………………………………………11
3.1 導(dǎo)電板的選擇……………………………………………………………………11
3.2 導(dǎo)電帶的設(shè)計(jì)……………………………………………………………………12
3.3 觸頭設(shè)計(jì)…………………………………………………………………………12
第四章  動、熱穩(wěn)定性校驗(yàn)……………………………………………………………15
4.1 電動穩(wěn)定性校驗(yàn)…………………………………………………………………15
4.2 導(dǎo)熱穩(wěn)定性校驗(yàn)…………………………………………………………………16
第五章  絕緣子的選擇…………………………………………………………………18
5.1 絕緣概述…………………………………………………………………………18
5.2 絕緣子的選擇和絕緣計(jì)算………………………………………………………18
5.3 絕緣子的校驗(yàn)……………………………………………………………………19
第六章  斷路器操動機(jī)構(gòu)及有關(guān)計(jì)算…………………………………………………20
6.1 對操動機(jī)構(gòu)的要求………………………………………………………………20
6.2 操動機(jī)構(gòu)的形式及選用…………………………………………………………21
6.3 機(jī)械特性的要求…………………………………………………………………22
第七章  分合閘速度的計(jì)算……………………………………………………………24
7.1 質(zhì)量的計(jì)算………………………………………………………………………24
7.2 轉(zhuǎn)動慣量的計(jì)算…………………………………………………………………25
7.3 質(zhì)量的歸算………………………………………………………………………25
7.4 力的計(jì)算…………………………………………………………………………25
7.5 分閘速度和時(shí)間的計(jì)算…………………………………………………………26
小結(jié)………………………………………………………………………………………28
參考文獻(xiàn)…………………………………………………………………………………29
致謝………………………………………………………………………………………30
附圖………………………………………………………………………………………31

【摘要】利用真空作為絕緣及滅弧手段的斷路器稱為真空斷路器,根據(jù)給定的技術(shù)參數(shù),正確合理的選擇和設(shè)計(jì)真空滅弧室結(jié)構(gòu)形式.主回路的設(shè)計(jì)原則必須保證電器動熱穩(wěn)定性合格,以導(dǎo)電板及導(dǎo)電帶的設(shè)計(jì)為主.絕緣子的設(shè)計(jì)要具有一定的機(jī)械和電氣強(qiáng)度,即絕緣子的擊穿電壓大于閃絡(luò)電壓50%.電動穩(wěn)定性校驗(yàn)原則為導(dǎo)電板的動穩(wěn)定電流大于三相短路電流,及其內(nèi)應(yīng)力要小于許用應(yīng)力.熱穩(wěn)定性校驗(yàn)原則為導(dǎo)電板及導(dǎo)電帶能承受短路電流的熱效應(yīng)而不致?lián)p壞,即短路終止的溫升小于最大發(fā)熱溫升.操動機(jī)構(gòu)的設(shè)計(jì)原則為保證斷路器能及時(shí)準(zhǔn)確的合閘,保持合閘,分閘,自由脫扣,防跳和復(fù)位連鎖的功能.
【關(guān)鍵詞】真空斷路器      真空滅弧室    主回路    動熱穩(wěn)定性  

VACUUM CIRCUIT BREAKER

Abstract： Utilize vacuum to call the vacuum circuit breaker as the insulating circuit breaker killing the arc means。According to giving the technical parameter definitely, correct and rational choice and design vacuum kill the structure form of arc room. The design principle of the main return circuit must guarantee it is qualified that the electric apparatus moves hot stability , with conductive board and as the main fact design that electric conduction lead. The design of the insulator should have certain machinery and electric intensity, namely the voltage of puncture of the insulator is greater than flashing to hold 50% of voltage in place with a net. Electronic stability check-up for to move steady electric current greater than three-phase short out in the electric current conductive board principle, and internal stress should be smaller than letting to use the stress。Hot stability check-up principle is it can is it short out for conductive board and electric conduction the heat effect of the electric current is unlikely to damage to bear to take, short out ShengXiao Wen that stop on most heavy to generate heat warm to rise. Is it move design principle of organization for guarantee circuit breaker can the accurate equal to the floodgating in time to speak, keeping shutting the floodgate, divide the floodgate , freedom is taken off and deducted, defend and jump and restored to the throne the function of the chain.
Key  words: vacuum circuit breaker; vacuum interrupter; design of the main return circuit；
move hot stability check-up； calculation of the speed of the divide-shut brake