Kev Ntsuas ntawm relayrelay Relay yog lub cuab yeej tseem ceeb ntawm lub ntsuas hluav taws xob ntse. Lub neej ntawm relay txiav txim siab lub neej ntawm lub ntsuas hluav taws xob rau qee qhov. Kev ua haujlwm ntawm lub cuab yeej tseem ceeb heev rau kev ua haujlwm ntawm lub ntsuas hluav taws xob ntse. Txawm li cas los xij, muaj ntau lub tuam txhab tsim khoom relay hauv tsev thiab txawv teb chaws, uas sib txawv heev hauv qhov ntau lawm, qib kev txawj ntse thiab cov kev ua tau zoo. Yog li ntawd, cov tuam txhab tsim khoom ntsuas hluav taws xob yuav tsum muaj cov khoom siv kuaj pom zoo meej thaum kuaj thiab xaiv relays kom ntseeg tau tias qhov zoo ntawm cov ntsuas hluav taws xob. Tib lub sijhawm, State Grid kuj tau txhawb nqa kev kuaj pom cov qauv ntawm cov kev ua tau zoo ntawm relay hauv cov ntsuas hluav taws xob ntse, uas kuj xav tau cov khoom siv kuaj pom sib xws los xyuas qhov zoo ntawm cov ntsuas hluav taws xob tsim los ntawm ntau lub tuam txhab tsim khoom. Txawm li cas los xij, cov khoom siv kuaj pom relay tsis yog tsuas yog muaj ib yam khoom kuaj pom xwb, cov txheej txheem kuaj pom tsis tuaj yeem ua haujlwm tau, cov ntaub ntawv kuaj pom yuav tsum tau ua tiav thiab tshuaj xyuas tes, thiab cov txiaj ntsig kuaj pom muaj ntau yam random thiab artificial. Ntxiv mus, qhov kev ua haujlwm ntawm kev kuaj pom tsis zoo thiab kev nyab xeeb tsis tuaj yeem lav tau [7]. Hauv ob xyoos dhau los, Lub Xeev Grid tau maj mam ua raws li cov kev cai ntawm cov ntsuas hluav taws xob, tsim cov qauv kev lag luam thiab cov lus qhia txog kev siv tshuab, uas tau muab qee qhov teeb meem kev siv tshuab rau kev kuaj pom relay parameter, xws li lub peev xwm thauj khoom ntawm thiab tawm ntawm relay, kev sim cov yam ntxwv hloov pauv, thiab lwm yam. Yog li ntawd, nws yog qhov ceev nrooj los kawm ib lub cuab yeej kom ua tiav kev kuaj pom ntawm cov kev ua haujlwm relay [7]. Raws li cov kev cai ntawm kev sim cov kev ua haujlwm relay, cov khoom xeem tuaj yeem faib ua ob pawg. Ib qho yog cov khoom xeem tsis muaj tam sim no thauj khoom, xws li tus nqi ua haujlwm, kev tiv thaiv kev sib cuag thiab lub neej kho tshuab. Qhov thib ob yog nrog cov khoom xeem tam sim no thauj khoom, xws li lub zog tiv tauj, lub neej hluav taws xob, lub peev xwm overload. Cov khoom xeem tseem ceeb tau qhia luv luv raws li nram no: (1) tus nqi ua haujlwm. Lub zog xav tau rau kev ua haujlwm relay. (2) Kev tiv thaiv kev sib cuag. Tus nqi tiv thaiv ntawm ob lub sib cuag thaum kaw hluav taws xob. (3) Lub neej kho tshuab. Cov khoom kho tshuab hauv qhov xwm txheej tsis muaj kev puas tsuaj, tus lej ntawm lub sijhawm ua haujlwm ntawm lub hloov relay. (4) Lub zog tiv tauj. Thaum lub zog tiv tauj raug kaw, qee qhov tam sim no thauj khoom raug siv rau hauv lub voj voog sib cuag hluav taws xob thiab tus nqi hluav taws xob ntawm cov sib cuag. (5) Lub neej hluav taws xob. Thaum lub zog ntsuas tau siv rau ntawm ob qho kawg ntawm lub relay tsav tsheb kauj thiab lub zog ntsuas resistive tau siv rau hauv lub voj voog sib cuag, lub voj voog tsawg dua 300 zaug hauv ib teev thiab lub voj voog ua haujlwm yog 1:4, lub sijhawm ua haujlwm txhim khu kev qha ntawm relay. (6) Muaj peev xwm overload. Thaum lub zog ntsuas tau siv rau ntawm ob qho kawg ntawm lub relay tsav tsheb kauj thiab 1.5 zaug ntawm lub zog ntsuas tau siv rau hauv lub voj voog sib cuag, lub sijhawm ua haujlwm txhim khu kev qha ntawm relay tuaj yeem ua tiav ntawm qhov zaus ua haujlwm ntawm (10 ± 1) zaug / feeb [7]. Hom, piv txwv li,, ntau hom relay sib txawv, tuaj yeem faib los ntawm qhov ceev ntawm qhov hluav taws xob relay, tam sim no relay, lub sijhawm relay, relay, siab relays, thiab lwm yam, raws li lub hauv paus ntsiab lus ntawm kev ua haujlwm tuaj yeem faib ua electromagnetic relay, induction hom relays, hluav taws xob relay, hluav taws xob relay, thiab lwm yam, raws li lub hom phiaj tuaj yeem faib ua relay tswj, relay tiv thaiv, thiab lwm yam, Raws li daim ntawv hloov pauv nkag tuaj yeem faib ua relay thiab ntsuas relay. [8] Txawm hais tias qhov relay yog raws li qhov muaj lossis tsis muaj cov tswv yim, relay tsis ua haujlwm thaum tsis muaj cov tswv yim, relay ua haujlwm thaum muaj cov tswv yim, xws li intermediate relay, general relay, time relay, thiab lwm yam. [8] Kev ntsuas relay yog raws li kev hloov pauv ntawm cov tswv yim, cov tswv yim yeej ib txwm muaj thaum ua haujlwm, tsuas yog thaum cov tswv yim mus txog qee tus nqi ntawm relay yuav ua haujlwm, xws li tam sim no relay, voltage relay, thermal relay, speed relay, pressure relay, liquid level relay, thiab lwm yam. [8] Electromagnetic relay Daim duab qhia txog cov qauv electromagnetic relay Feem ntau ntawm cov relays siv hauv kev tswj hwm circuits yog electromagnetic relays. Electromagnetic relay muaj cov yam ntxwv ntawm cov qauv yooj yim, tus nqi qis, kev ua haujlwm yooj yim thiab kev saib xyuas, muaj peev xwm sib cuag me me (feem ntau hauv qab SA), ntau tus neeg sib cuag thiab tsis muaj cov ntsiab lus tseem ceeb thiab pabcuam, tsis muaj arc tua hluav taws xob, me me, ua haujlwm sai thiab raug, kev tswj hwm rhiab heev, txhim khu kev qha, thiab lwm yam. Nws yog siv dav hauv qhov system tswj hwm qis-voltage. Feem ntau siv electromagnetic relays suav nrog tam sim no relays, voltage relays, intermediate relays thiab ntau yam me me dav dav relays. [8] Cov qauv thiab txoj cai ua haujlwm ntawm Electromagnetic relay zoo ib yam li contactor, feem ntau yog tsim los ntawm electromagnetic mechanism thiab kev sib cuag. Electromagnetic relays muaj ob qho tib si DC thiab AC. Ib qho voltage lossis tam sim no ntxiv rau ob qho kawg ntawm lub kauj los tsim lub zog electromagnetic. Thaum lub zog electromagnetic loj dua lub zog tiv thaiv lub caij nplooj ntoos hlav, lub armature raug kos kom ua rau cov neeg sib cuag qhib thiab kaw feem ntau txav mus los. Thaum lub voltage lossis tam sim no ntawm lub kauj poob lossis ploj mus, lub armature raug tso tawm thiab kev sib cuag raug pib dua. [8] Thermal relay Thermal relay feem ntau yog siv rau cov khoom siv hluav taws xob (feem ntau yog lub cev muaj zog) kev tiv thaiv overload. Thermal relay yog ib hom kev ua haujlwm siv cov hauv paus ntsiab lus cua sov tam sim no ntawm cov khoom siv hluav taws xob, nws nyob ze rau lub cev muaj zog tso cai rau cov yam ntxwv overload ntawm cov yam ntxwv lub sijhawm rov qab, feem ntau siv ua ke nrog lub contactor, siv rau peb-theem asynchronous lub cev muaj zog overload thiab theem tsis ua haujlwm tiv thaiv ntawm peb-theem asynchronous lub cev muaj zog hauv kev ua haujlwm tiag tiag, feem ntau ntsib nrog los ntawm hluav taws xob lossis cov laj thawj kho tshuab xws li overcurrent, overload thiab theem tsis ua haujlwm). Yog tias overcurrent tsis loj, lub sijhawm luv luv, thiab cov windings tsis tshaj qhov kub nce siab, qhov overcurrent no raug tso cai; Yog tias qhov over-current loj heev thiab kav ntev, nws yuav ua rau lub cev muaj zog rwb thaiv tsev laus sai dua thiab txawm tias hlawv lub cev muaj zog. Yog li ntawd, lub cuab yeej tiv thaiv lub cev muaj zog yuav tsum tau teeb tsa hauv lub voj voog ntawm lub cev muaj zog. Muaj ntau hom khoom siv tiv thaiv lub cev muaj zog siv dav dav, thiab qhov feem ntau yog hlau phaj thermal relay. hlau phaj hom thermal relay yog peb-theem, muaj ob hom nrog thiab tsis muaj kev tiv thaiv theem tawg. [8] Lub sijhawm relay Lub sijhawm relay yog siv rau kev tswj lub sijhawm hauv lub voj voog tswj. Nws hom yog ntau heev, raws li nws txoj cai ua haujlwm tuaj yeem faib ua hom electromagnetic, hom cua damping, hom hluav taws xob thiab hom hluav taws xob, raws li hom qeeb tuaj yeem faib ua lub zog qeeb qeeb thiab lub zog qeeb qeeb. Lub sijhawm relay cua damping siv lub hauv paus ntsiab lus ntawm cua damping kom tau txais lub sijhawm qeeb, uas yog tsim los ntawm electromagnetic mechanism, qeeb mechanism thiab tiv tauj system. Lub electromagnetic mechanism yog ncaj qha-ua ob chav E-hom hlau core, lub cev tiv tauj siv I-X5 micro hloov, thiab lub sijhawm qeeb mechanism txais airbag damper. [8] kev ntseeg siab1. Kev cuam tshuam ntawm ib puag ncig rau kev ntseeg siab ntawm relay: lub sijhawm nruab nrab ntawm kev ua tsis tiav ntawm cov relays ua haujlwm hauv GB thiab SF yog qhov siab tshaj plaws, ncav cuag 820,00h, thaum nyob hauv NU ib puag ncig, nws tsuas yog 600,00h. [9]2. Kev cuam tshuam ntawm qib zoo rau kev ntseeg siab ntawm relay: thaum xaiv A1 qib zoo relays, lub sijhawm nruab nrab ntawm kev ua tsis tiav tuaj yeem ncav cuag 3660000h, thaum lub sijhawm nruab nrab ntawm kev ua tsis tiav ntawm C-qib relays yog 110000, nrog qhov sib txawv ntawm 33 zaug. Nws tuaj yeem pom tias qib zoo ntawm relays muaj kev cuam tshuam loj rau lawv qhov kev ua tau zoo ntawm kev ntseeg siab. [9]3, kev cuam tshuam rau kev ntseeg siab ntawm daim ntawv tiv tauj relay: daim ntawv tiv tauj relay kuj tseem yuav cuam tshuam rau nws qhov kev ntseeg siab, ib qho pov qhov kev ntseeg siab ntawm hom relay siab dua li tus lej ntawm tib rab riam hom ob npaug pov relay, kev ntseeg siab maj mam txo qis nrog kev nce ntawm tus lej ntawm riam tib lub sijhawm, yog lub sijhawm nruab nrab ntawm kev ua tsis tiav ib-ncej ib-pov relay plaub riam ob npaug pov relay ntawm 5.5 zaug. [9]4. Kev cuam tshuam ntawm hom qauv rau kev ntseeg siab ntawm relay: muaj 24 hom qauv relay, thiab txhua hom muaj kev cuam tshuam rau nws qhov kev ntseeg siab. [9]5. Kev cuam tshuam ntawm qhov kub thiab txias rau kev ntseeg siab ntawm relay: qhov kub thiab txias ua haujlwm ntawm relay yog nruab nrab ntawm -25 ℃ thiab 70 ℃. Nrog rau qhov nce ntawm qhov kub thiab txias, lub sijhawm nruab nrab ntawm kev ua tsis tiav ntawm relays txo qis maj mam. [9]6. Kev cuam tshuam ntawm kev ua haujlwm ntawm kev ntseeg siab ntawm relay: Nrog rau kev nce ntawm kev ua haujlwm ntawm relay, lub sijhawm nruab nrab ntawm kev ua tsis tiav feem ntau qhia txog kev poob qis exponential. Yog li ntawd, yog tias lub voj voog tsim xav kom lub relay ua haujlwm ntawm tus nqi siab heev, nws yog qhov tsim nyog los ua tib zoo ntes lub relay thaum lub sijhawm saib xyuas lub voj voog kom nws tuaj yeem hloov pauv raws sijhawm. [9]7. Kev cuam tshuam ntawm qhov piv tam sim no rau kev ntseeg siab ntawm relay: qhov sib piv tam sim no hu ua yog qhov sib piv ntawm qhov tam sim no ua haujlwm ntawm relay rau qhov tam sim no ntsuas. Qhov piv tam sim no muaj feem cuam tshuam loj heev rau qhov kev ntseeg siab ntawm relay, tshwj xeeb tshaj yog thaum qhov piv tam sim no ntau dua 0.1, lub sijhawm nruab nrab ntawm kev ua tsis tiav txo qis sai, thaum thaum qhov piv tam sim no tsawg dua 0.1, lub sijhawm nruab nrab ntawm kev ua tsis tiav feem ntau nyob zoo li qub, yog li qhov thauj khoom nrog qhov ntsuas tam sim no siab dua yuav tsum tau xaiv hauv kev tsim hluav taws xob kom txo qhov piv tam sim no. Ua li no, qhov kev ntseeg siab ntawm relay thiab txawm tias tag nrho lub voj voog yuav tsis raug txo vim qhov kev hloov pauv ntawm qhov tam sim no ua haujlwm.
