KV環(huán)網(wǎng)柜控制原理.ppt

, 2012-03-02 ,10KV環(huán)網(wǎng)柜控制原理,,章節(jié),,1-1 控制器件-按鈕,,復(fù)合按鈕： 常開按鈕和 常閉按鈕做在一起。,復(fù)合按鈕,SB,1-2 控制器件-按鈕,,1-3 控制器件-微動和輔助開關(guān),,繼電器和接觸器的工作原理一樣。主要區(qū)別在于，接觸器的主觸頭可以通過大 電流，而繼電器的 觸頭只能通過小電流。所以，繼電器只能用于控制電路中。,1-4 控制器件-繼電器類型,,1-5 控制器件-接觸器、繼電器有關(guān)符號,,1-6 控制器件-時間繼電器類型,,,2-1 分閘合閘-初始狀態(tài),QA1斷開,SA置于就地1、2接通,開關(guān)在運(yùn)行位置S9接通（試驗(yàn)位置S8接通）,儲能彈簧未儲能,,2-2 分閘合閘- 回路加電,合上QA1,,2-3 分閘合閘-回路加電,合上QA1,Y1得電,,2-4 分閘合閘-回路加電,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,Y1得電,,2-5 分閘合閘-回路加電,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,Y1得電,S2閉合,綠燈亮,,2-6 分閘合閘-儲能,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能電機(jī)得電,Y1得電,綠燈亮,,2-7 分閘合閘-儲能中,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能彈簧拉伸中,Y1得電,綠燈亮,,2-8 分閘合閘-儲能完成后,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能電機(jī)停轉(zhuǎn),S1閉合,S3閉合,S3斷開,S2斷開,黃燈亮,Y1得電,綠燈亮,儲能完成進(jìn)行合閘,,2-9 分閘合閘-合閘中,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能電機(jī)停轉(zhuǎn),S1閉合,S3閉合,S3斷開,S2斷開,黃燈亮,Y1得電,綠燈亮,合閘線圈得電,,KO,綠燈滅,QF,2-10 分閘合閘-真空開關(guān)合上后,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能電機(jī)停轉(zhuǎn),S3閉合,S3斷開,S2斷開,黃燈亮,Y1得電,合閘線圈失電,QF,開關(guān)輔助接點(diǎn)變換,紅燈亮,QF斷開,S1閉合,QF閉合,,QF,2-11 分閘合閘-真空開關(guān)合上后機(jī)械能量釋放,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,S2閉合,儲能電機(jī)運(yùn)轉(zhuǎn)儲能,S1斷開,S3閉合,S3接通,S2接通,黃燈滅,Y1得電,綠燈滅,合閘線圈失電,QF,開關(guān)輔助接點(diǎn)變換,紅燈亮,QF接通,斷路器合位指示燈亮,,QF,2-12 分閘合閘-儲能電機(jī)重新運(yùn)轉(zhuǎn)儲能后,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,儲能電機(jī)停轉(zhuǎn),S3斷開,S2斷開,QF,S1接通,黃燈亮,,QF,2-13 分閘合閘-分閘,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,按下SB2,,QF,2-14 分閘合閘-分閘中,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,TQ,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,TQ得電開關(guān)分閘,在開關(guān)合閘過程中分閘彈簧已經(jīng)被拉伸儲能。,,QF,2-15 分閘合閘-分閘后,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,TQ,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,QF接通,綠燈亮,,QF,3-1 防止開關(guān)跳躍原理,S2,S3,QA1,QA1,PML,SB1,KO,QF,HQ,KO,L+,L-,10KV,負(fù)載,A,B,C,按下SB1,10KV真空開關(guān),,QF,S2,S3,QA1,QA1,PML,SB1,KO,QF,HQ,KO,L+,L-,10KV,負(fù)載,A,B,C,10KV真空開關(guān),HQ得電,按下SB1,3-2 防止開關(guān)跳躍原理,,KO,4,QF,S2,S3,QA1,QA1,PML,SB1,QF,HQ,KO,L+,L-,真空開關(guān)合上,10KV,負(fù)載,A,B,C,QF接通,KO得電,1,2,QF斷開,按下SB1,3-3 防止開關(guān)跳躍原理,,QF,S2,S3,QA1,QA1,PML,SB1,KO,QF,HQ,KO,L+,L-,真空開關(guān)合上,10KV,負(fù)載,A,B,C,QF接通,KO得電,KO1、4接通,1,2,4,QF斷開,按下SB1,3-4 防止開關(guān)跳躍原理,,QF,S2,S3,QA1,QA1,PML,SB1,KO,QF,HQ,KO,L+,L-,10KV,負(fù)載,A,B,C,1,2,4,同時由于機(jī)構(gòu)或負(fù)載有故障。在操作時造成開關(guān)合不上或事故跳閘,按下SB1時間過長或無法返回時,3-5 防止開關(guān)跳躍原理,,QF,S2,S3,QA1,QA1,PML,SB1,KO,QF,HQ,KO,L+,L-,同時由于機(jī)構(gòu)或負(fù)載有故障。在操作時造成開關(guān)合不上或事故跳閘,10KV,負(fù)載,A,B,C,QF斷開,KO持續(xù)供電,仍然保持回路接通,1,2,4,QF接通,按下SB1時間過長或無法返回時,HQ無法得到電壓，開關(guān)不能再次合閘，防止了開關(guān)的多次分合,3-6 防止開關(guān)跳躍原理,,QF,4-1 繼電保護(hù)-過流,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,速斷,過流,備用,重瓦斯接點(diǎn),重瓦斯跳閘,,QF,4-2 繼電保護(hù)-過流,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,當(dāng)線路電流和時間超過過流整定值時,203,204,205,206,,SEL,205,QF,4-3 繼電保護(hù)-過流,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,203,204,206,SEL的205-206接通,KCO得電,,SEL,205,QF,4-4 繼電保護(hù)-過流,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,TQ,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,203,204,206,SEL的205-206接通,KCO得電,KCO閉合,TQ得電,,SEL,205,QF,4-5 繼電保護(hù)-開關(guān)跳閘,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,203,204,206,SEL的205-206返回,開關(guān)的輔助接點(diǎn)全部轉(zhuǎn)換,綠燈亮,紅燈滅,斷路器合位指示燈滅,KCO失電,KCO斷開,,QF,3-6 繼電保護(hù)-速斷,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,當(dāng)線路電流和時間超過速斷整定值時SEL的203-204接通動作過程用過流,203,204,205,206,,QF,4-7 繼電保護(hù)-重瓦斯,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,PML,PML,SB1,SB2,KO,QF,HQ,KO,QF,L+,L-,QF,OFF,Y1,S9,S8,S2,S3,1HL2,2HL2,3HL2,M,SEL,SEL,SEL,XB1,XB2,XB3,QF,WS,KCO,SEL,KA1,IN,QF,當(dāng)變壓器內(nèi)部發(fā)生故障時WS接通,203,204,205,206,,QF,4-8 繼電保護(hù)-重瓦斯,IN,S1,S2,S3,QA1,QA1,2,1,5,6,SA,L,R,KA1,XB4,KCO,SEL,