Yakakwira voltage wedunhu mudariki (kana yakakwira magetsi switch) ndiyo huru simba kudzora zvishandiso zveiyo substation, ine arc yekudzimisa hunhu, kana zvakajairika mashandiro ehurongwa, inogona kudimbura uye kuburikidza nemutsara uye akasiyana emagetsi emagetsi asina mutoro uye mutoro ikozvino; Kana iko kukanganisika kukaitika muhurongwa, iyo uye kudzosera kudzivirirwa, inogona kukurumidza kubvisa iko iko iko iko kukanganisa, kudzivirira kuwedzera kukura kwenzvimbo yetsaona.
Iyo yekubvisa switch haina arc yekudzimisa mudziyo. Kunyangwe iyo mirau ichinongedzera kuti inogona kushanda mumamiriro ezvinhu apo mutoro uripo uri pasi pe5A, kazhinji haishandiswe nemutoro Zvisinei, iyo yekudambura switch ine chimiro chakareruka, uye mashandiro ayo mamiriro anogona kuoneka nekukanya kubva chitarisiko. Iko kune yakajeka yekubvisa poindi panguva yekugadzirisa.
Circuit breaker iri mukushandisa inonzi "switch", kudimbura switch mukushandisa inonzi "banga brake", iwo maviri anowanzo shandiswa mukubatana.Misiyano iri pakati penzvimbo huru yemagetsi redunhu breaker uye yekudambura switch ndeiyi inotevera:
1) Iyo yakakwira voltage mutoro switch inogona kutyorwa nemutoro, iine yega-yekudzimisa arc basa, asi iyo yekupwanya kugona iri diki kwazvo uye mashoma.
2) Yakakwira voltage yekudambura switch kazhinji haisi nekutakura mutoro, hapana arc chivharo chivakwa, kune zvakare yakakwira voltage kukatanura switch inogona kutyora mutoro, asi chimiro chakasiyana neicho mutoro switch, iri nyore.
3) Yakakwira magetsi mutoro switch uye yakakwira voltage kukatanura switch inogona kuumba iri pachena kutyora poindi. Mazhinji akakwira magetsi wedunhu anotyora haana kusarudzika basa, uye mashoma mashoma emagetsi wedunhu mabhureki ane basa rekuzviparadzanisa.
4) Iyo yakakwira voltage yekudambura switch haina basa rekudzivirira, kuchengetedzwa kweiyo yepamusoro voltage mutoro switch inowanzo fuse dziviriro, kungokurumidza kuzorora uye pamusoro pazvino.
5) Iyo yekuvhuna kugona kweakakwira voltage wedunhu mabhureki anogona kuve akakwirira kwazvo mukugadzira process.Mainly vimba neazvino transformer ine yechipiri michina yekudzivirira.Can vane pfupi redunhu dziviriro, zadzisa dziviriro, leakage dziviriro uye mamwe mabasa.
Kupatsanura kwema switch mashandiro ekushandisa
1. Kupatsanura kwekuchinja mashandiro
Isu tava kusangana neswitch inowanzo kuve yakakamurwa kuita mamwe mafuta (echinyakare mamodheru, ikozvino anenge asinga oneke), mashoma mafuta (mamwe masisitimu evashandisi achiripo), SF6, vharuvhu, GIS (zvakasanganiswa zvemagetsi zvigadzirwa) uye mamwe marudzi. wepakati pekuchinja. Kwatiri chechipiri, zvakabatana zvakanyanya ndeye mashandiro ekushandisa switch.
Iyo michina mhando inogona kukamurwa kuita yemagetsi mashandiro mashandiro (angave ekare, kazhinji mumafuta kana mashoma mafuta wedunhu breaker yakagadzirirwa izvi); Chitubu chekushandisa mashandiro (parizvino ndiyo yakajairika, SF6, vacuum, GIS inowanzo yakagadzirirwa iyi nzira); ABB nguva pfupi yadarika yakaunza mhando nyowani yekusingaperi magineti opareta (senge VM1 vacuum redunhu breaker).
2. Electromagnetic operating mechanism
Iwo emagetsi mashandiro mashandiro anonyatsovimba nemagetsi emagetsi anokonzereswa neyekuvhara yazvino kuyerera kuburikidza neyekuvhara coil yekuvhara nekutsikirira rwendo rwetsime. Rwendo rwacho runonyanya kuvimba nerwendo rwechirimo kupa simba.
Naizvozvo, urwu rudzi rwekushandisa mashandiro erwendo rwazvino idiki, asi iyo yekuvhara yazvino yakakura kwazvo, ipapo inogona kusvika anopfuura zana amperes.
Ichi ndicho chikonzero iyo DC system yeiyo substation inofanira kuvhura nekuvhara bhazi kudzora bhazi. Amai vanovhara vanopa iyo yekuvhara simba, uye amai vanodzora vanopa simba kune yekudzivirira chiuno.
Bhazi rekuvhara rakaturikwa zvakananga pabhatiri pack, iyo yekuvhara magetsi iwo magetsi ebhatiri pack (kazhinji nezve 240V), iko kushandiswa kwebhatiri kuburitsa mhedzisiro yekupa hombe razvino kana uchivhara, uye iyo voltage inopinza zvakanyanya kana ichivhara. Uye iro bhazi rekutonga riri kuburikidza nesilicon cheni yekukwira-pasi uye amai vakabatana pamwechete (kazhinji zvinodzorwa pa220V), kuvhara hakuchakanganisa kugadzikana kwemabatiro emabhazi emagetsi. yekuvhara wedunhu haisi yakananga kuburikidza yekuvhara coil, asi kuburikidza neyekuvhara contactor.Rwendo wedunhu rwakabatana zvakabatana neiyo rwendo coil.
Kuvhara contactor coil inowanzove voltage mhando, kuramba kukosha kwakakura (mashoma K) .Kana iko kuchengetedzwa kuchiratidzwa nedunhu iri, kutarisisa kunofanirwa kubhadharwa kusvika pakuvhara kuchengetedza kwese kutanga.Asi iri harisi dambudziko, rwendo runochengetedza iyo TBJ kazhinji inogona kutanga, saka iyo anti-kusvetuka basa ichiripo.Rudzi urwu rweyemuchina ine yakareba yekuvhara nguva (120ms ~ 200ms) uye ipfupi nguva yekuvhura (60 ~ 80ms).
3. Chitubu chinoshanda mashandiro
Mhando iyi yemuchina ndiyo inonyanya kushandiswa mashandiro parizvino, kuvhara kwayo nekuvhura kunotsamira pachirimo kuti ipe simba, iyo yekuvhara yekuvhara coil inongopa simba rekuburitsa pini yekumisikidza pini, saka iyo yekumhanyisa yekuvhara yazvino kazhinji haina kukura. Chitubu simba rekuchengetedza rinomanikidzwa nemagetsi ekuchengetedza magetsi.
Chitubu simba rekuchengetedza opareta sekondari chiuno
Kune yakasununguka mashandiro mashandiro, bhazi rekuvhara rinonyanya kupa simba kumagetsi ekuchengetera magetsi, uye yazvino haina kukura, saka hapana musiyano mukuru pakati pebhasi rekuvhara nebhazi rinodzora. inoda kutarisisa nzvimbo.
4. Permanent magineti opareta
Iyo isingagumi magineti opareta inzira inoshandiswa naABB kumusika wepamusha, kutanga yaiswa kune yayo VM1 10kV vacuum redunhu breaker.
Nheyo yaro yakafanana neyakafanana nemagetsi emagetsi, shaft yekutyaira inogadzirwa neinogara magineti zvinhu, magineti anogara akatenderedza coil yemagetsi.
Pasi pemamiriro ezvinhu akajairika, iyo coil yemagetsi haina kubhadhariswa, kana switch ichivhura kana kuvhara, nekuchinja iyo polarity yeiyo coil ichishandisa kukwezva kwemagineti kana kudzora musimboti, kutyaira yakavhurika kana kuvhara.
Kunyangwe iyi yazvino isiri diki, switch yacho "yakachengetwa" nehukuru hukuru capacitor, iyo inoburitswa kuti ipe yakakura hombe panguva yekushanda.
Izvo zvakanakira iyi michina idiki saizi, kushoma kutapurika michina zvikamu, saka kuvimbika kuri nani pane iyo elastic kushanda mashandiro.
Mukubatana nemudziyo wedu wekuchengetedza, chiuno chedu chinokamhina chinotyaira yakasimba-yakasimba solid-state relay iyo inotoda kuti isu tiipe iyo nemhepo yekuita.
Naizvozvo, switch, chengetedza chiuno zvirokwazvo hachigone kutangwa, kudzivirirwa kwekusvetuka hakuzotanga (iyo nzira pachayo nekusvetuka).
Nekudaro, zvinofanirwa kucherechedzwa kuti nekuda kweakakwira mashandiro emagetsi eiyo solid-state relay, yakajairika dhizaini TW yakaipa inosunganidzwa nedunhu rekuvhara, iro risingazokonzeresa solid-state relay kuti ishande, asi inogona kukonzeresa chinzvimbo kuendesa kukundikana kutanga nekuda kweakawanda akawandisa magetsi.
1. Kumusoro kuputira humburumbira (ine vacuum arc-yekudzimisa kamuri)
2. Dzikisa humburumbira
3. Chinyorwa chinovhura mubato
4. Chassis (yakavakirwa-zvachose magineti inoshanda mashandiro)
Voltage shanduko
6. Pasi petambo
7. Yazvino transformer
8. Pamutsetse
Iyi mamiriro akasangana mumunda, iyo chaiyo yekuongorora uye yekugadzirisa maitiro inogona kuoneka mune yekugadzirisa kesi chikamu chikamu cheiyi pepa, kune zvakadzama tsananguro.
Kune zvakare zvigadzirwa zvechigarire magineti mashandiro mashandiro muChina, asi hunhu hausati hwave hwakanyanya kusvika kune hwakajairwa kare. Mumakore achangopfuura, mhando hwave zvishoma nezvishoma kuunzwa kumusika.Kufunga mutengo, zvipfuwo zvechigarire magineti mashandiro kazhinji haana capacitance, uye azvino inopihwa zvakananga nekuvhara bhazi.
Yedu yekushandisa mashandiro inotyairwa nein-off contactor (inowanzo sarudzwa yazvino mhando), bata uye anti-svetuka kazhinji inogona kutanga.
5.FS mhando "chinja" nevamwe
Zvatataura pamusoro apa ndezvematunhu anotsemuka (anowanzozivikanwa se switch), asi isu tinogona kusangana neizvo vashandisi vanodana kuti FS switch mumagetsi ekuvaka.
Nekuti switch iri inodhura, iyi FS dunhu inoshandiswa kuchengetedza mari.Iyo yazvino yazvino inobviswa neiyo switch switch, uye iyo yekukanganisa ikozvino inobviswa neiyo fuse yekukurumidza.
Rudzi urwu rwemudunhu rwakajairika mu6kV magetsi ekudyara system.Kudzivirirwa pamwe chete nedunhu rakadai kunowanzo fanirwa kurambidza kutsamwisa kana kubvumidza kukurumidza kubviswa kwemazuva ano nekunonoka kana iko kukanganisa kwazvino kuri kukuru kupfuura iko kunotenderwa kutyora kwazvino kwemutoro switch. Vamwe vashandisi vemagetsi emagetsi vangangodaro vasingade kuchengetedza chiuno chakabata.
Nekuda kwehunhu hwakashata hwe switch, mubatsiri wekubata anogona kunge asipo, uye kana denderedzwa rekuchengeta ratanga, rinofanira kuvimba nemubatsiri wekubatana kuti avhure vasati vadzoka, zvikasadaro iyo yekuvhara yekuvhara ikozvino ichawedzerwa kusvetuka kuvhara coil kusvikira coil yatsva.
Iyo yekumhanyisa yekuvhara coil yakagadzirirwa kupihwa simba kwenguva pfupi. Kana iyo yazvino ikawedzerwa kwenguva yakareba, zviri nyore kupisa kunze Uye isu tinonyatsoda kuve neyakaibata yekubata, zvikasadaro zviri nyore kwazvo kupisa zvinodzivirira zvinofambidzana.
Ehezve, kana mushandisi wemumunda achimanikidza, chiuno chakabata chinogona kubviswawo Kazhinji, nzira yakapusa ndeyekudimbura tambo pabhodhi redunhu iro rinochengeta iro rinowanzo vhurika rekubatana kweiyo relay neakanaka kutonga mukadzi.
Mune iyo debugging saiti inofanirwa kutarisisa, kana iyo switch irikuvhiya, chiratidzo chinzvimbo chakadzimwa. dzimiswa nekukasira kudzivirira kupisa koil switch Iyi ndiyo musimboti wekuchengetedza mupfungwa ipapo.
Post nguva: Aug-04-2021