Lub tshuab hluav taws xob hluav taws xob yog hom contactor. Nws yog siv los hloov cov khoom tseem ceeb. Daim ntawv thov tseem ceeb yog kev ua kom, deactivation thiab thim rov qab ntawm asynchronous peb-theem fais fab units.
cov ntaub ntawv dav dav
Qhov tseem ceeb tshaj plaws ntawm lub tshuab hluav taws xob hluav taws xob yog nws qhov hnyav thiab tag nrho qhov ntev. Cov khoom lag luam tau qhab nia zoo nyob rau hauv seem no vim nws xav tau kev tsim los tiv thaiv cov khoom hnyav.
Nyob rau hauv cov khoom no, muaj zog tiv tauj tshuab nrog arc chutes yog siv, uas kuj cuam tshuam rau qhov nce ntawm qhov ntev. Txawm li cas los xij, cov khoom siv tuaj yeem muaj qhov ua haujlwm zoo ib yam, tab sis txawv ntawm qhov hnyav thiab qhov loj me. Contactors yog ua nyob rau hauv daim ntawv qhib. Hauv qhov no, cov khoom siv yuav tsum tau muab tso rau hauv cov khoom siv xauv lossis cov khoom sib dhos, tiv thaiv los ntawm cov av, cov khoom txawv teb chaws thiab cov av.
Daim ntawv thov
Vim yog qhov tsis txaus ntseeg thiab kev saib xyuas yooj yim, lub tshuab hluav taws xob hluav taws xob (220 volts) tau siv dav los tswj ntau yam kev lag luam thiab tsev neegnodes (tshuab, furnaces, ventilation systems, thiab lwm yam). Cov peev txheej ntawm daim ntawv thov yuav luag tsis muaj kev txwv, los ntawm cov escalators thiab elevator mus rau kev lag luam loj.
Cov cuab yeej hauv nqe lus nug yuav tiv thaiv lub tshuab lossis kev teeb tsa los ntawm kev pib yuam kev. Cov chav nyob thaiv cov khoom siv hluav taws xob yog tias muaj kev cuam tshuam lossis cua sov ntawm chav tsev tau npaj. Tsis tas li ntawd, lub tshuab hluav taws xob hluav taws xob tiv thaiv kev ua haujlwm tsis zoo uas tuaj yeem cuam tshuam tag nrho lub cev.
Ntau yam
Los ntawm hom, electromagnetic starters txawv nyob rau hauv cov nram no tsis:
- Cov qauv tsis tu ncua uas ua kom lub zog pib thiab tom qab ntawd rub cov tub ntxhais nrog kev sib cuag. Yog li ntawd, ib txwm kaw cov ntsiab lus raug kaw, thiab cov zoo tib yam - thaum lub hwj chim nkag mus rau lub tshuab hluav taws xob hluav taws xob. Lub electromagnet attracts ib tug hlau core nrog kev sib cuag nrog nws. Hauv qhov no, ib txwm kaw qhov xaus qhib, thiab qhib xaus kaw. Thaum lub hwj chim kaw lawm, tus txheej txheem yog ua si nyob rau hauv rov qab kev txiav txim.
- Rov qab hloov kho. Cov chav no yog cov reversers nrog electromagnets, uas muaj lub hauv paus zoo sib xws thiab kev sib txuas rau blockers. Qhov kev tsim no ua rau nws muaj peev xwm zam kom tsis txhob muaj kev ua haujlwm ib txhij ntawm ob lub cuab yeej.
Raws li hom kev sib txuas, PML electromagnetic starter muab faib ua pawg: AC-1, AC-3 thiab AC-4. Nruab nrab ntawm lawv tus kheej, lawv txawv ntawm qhov siv hluav taws xob thiab hom kev sib txuas.
Piv txwv li, AC-1 yog inductive lossisTsis tshua muaj zog load, AC-3 - ncaj qha pib nrog squirrel-cage rotor, AC-4 - ib tug zoo xws li system uas muaj peev xwm ntawm braking thiab switching tawm los ntawm tam sim no daim ntawv thov rov qab.
Ntse
220 V electromagnetic starters, nyob ntawm cov khoom siv thiab kev xaiv ntxiv, muab faib ua peb pawg:
- Qhib kev xaiv nrog qib kev tiv thaiv tsawg kawg "IP-00". Lawv ua haujlwm thaum muab tso rau hauv cov thawv tiv thaiv, txee thiab lwm lub thawv, tiv thaiv los ntawm ya raws thiab plua plav.
- Cov qauv tiv thaiv. Lawv muaj qib kev tiv thaiv ntawm qhov kev txiav txim ntawm IP-40, yog siv hauv cov plua plav teeb.
- Cov cuab yeej nrog qib IP-54 tiv thaiv kom tsis txhob ya raws thiab plua plav, tuaj yeem siv sab nraum zoov, tsis yog sab hauv tsev.
Versatility
Kev sib txuas ntawm lub tshuab hluav taws xob hluav taws xob yog ua los ntawm kev sib txuas ntawm cov teeb liab uas muab lub sijhawm "nco". Piv txwv li, tom qab ib tug luv luv nias ntawm "Start", ib tug luv luv Circuit Court ntawm qhov kawg ntawm lub starter yog pom. Los ntawm kev tuav lub pob luv luv, cov neeg sib txuas tau raug txiav thiab nyob twj ywm hauv qhov nruab nrab kom txog thaum lawv tau hloov dua tshiab tom qab lub hwj chim rov qab los.
Yog tias 380 V electromagnetic oob khab pib nyob rau hauv hom rov qab, nws siv cov kais dej los thaiv qhov thib ob analogue, Qhov no tiv thaiv qhov ua rau luv luv. Ib tug loj tus naj npawb ntawm ceg yog pab tau rau assembling sophisticated tswj systems, yog tias tsim nyog. Cov no tuaj yeem yog analogues nrog software kho,muaj peev xwm nce lossis txo cov load, nrog rau cov phiaj xwm nrog cov chaw taws teeb ncig. Kuj tseem muaj qhov xav tau los qhia cov naj npawb ntawm cov contactors nrog cov blocks ntxiv lossis skids nrog hooks.
PME electromagnetic pib
Lub thermal relay rau cov khoom siv hauv nqe lus nug ua haujlwm los tiv thaiv kev ua haujlwm ntev ntev lossis ua txhaum ntawm kev ncaj ncees ntawm cov txheej txheem insulating. Lub voj voog ua haujlwm muaj lub phaj tshwj xeeb uas qhib lub voj voog ntawm qhov tseem ceeb tam sim no. Qib ntawm "kev tsis sib haum xeeb" yog tswj tsis pub dhau 15%. Nws ua raws los ntawm qhov no tias overload yuav tsum tau txiav txim siab pib thaum tsim qhov project tsim.
Cov hauv qab no tsis pom zoo:
- Nruab rau saum lub thawv mounting lub thawv (cov cua kub sib tov yuav khaws cia).
- Siv cov khoom sib dhos hauv cov chav nrog qhov sib txawv ntawm qhov kub thiab txias.
- Ua haujlwm ntawm lub chassis uas muaj kev vibrations thiab kev ntxhov siab txhua yam.
- Siv cov khoom siv siab dua 150 A.
- Mount lub tshuab hluav taws xob hluav taws xob (380 V) nyob rau hauv qhov chaw uas qhov kub siab tshaj 40 degrees Celsius.
Nuances
Muaj qee qhov nuances hauv kev ua haujlwm ntawm cov khoom siv hauv nqe lus nug. Lawv muaj feem xyuam rau cov yam ntxwv ntawm daim ntawv thov ntawm starters. Kev ua haujlwm yog ua los ntawm kev muab cov hluav taws xob sib txuas nrog kev nce ntxiv hauv kev thauj khoom ntawm cov neeg sib cuag tseem ceeb. Raws li qhov tshwm sim, nws yog qhov xav tau pib teeb tsa cov npoo ntawm kev txiav txim 1 hauv qhov tsis muaj,5-2 zaug.
Hauv ntu no, nws tsis raug mob los hais txog analogues nrog cov hlau nplaum ruaj khov. Lawv tau tsim los rau kev ua haujlwm mus ntev yam tsis muaj kev cuam tshuam, lawv txuas nrog lub rectifier.
Txhim kho ntawm lub tshuab hluav taws xob hluav taws xob PM-12, nrog rau nws cov analogues, tsis xav tau kom txog rau thaum lub neej ua haujlwm ntawm lub cuab yeej tag nrho. Qhov no yog vim qhov kev ua haujlwm tau ncaj qha nyob ntawm qhov qhib / kaw lub voj voog. Tej zaum yuav muaj ntau pua txhiab tus ntawm lawv yog tias nws txhawj xeeb txog cov khoom siv niaj hnub siv hauv chav qhuav thiab qhov cua.
Nyob rau hauv cov txheej txheem ntawm kev ua hauj lwm, nws yog ib qho tsim nyog los saib xyuas qhov xwm txheej ntawm cov khoom kho. Lawv yuav tsum tau ceev nrooj tas li, tsis txhob cia cov av noo thiab plua plav dhau los, thiab ua los ntawm cov khoom tsim nyog. Kev sib cuag raug ntxuav tsis tshua muaj, tsis tas yuav tsum tau ua, cov txheej txheem no yog qhov zoo tshaj plaws tsis suav nrog kev pabcuam tag nrho. Qhov no manipulation yog qhia nyob rau hauv cov ntaub ntawv ntawm muaj zog melting, hlawv. Kev ua tiav ntawm cov ntsiab lus yog ua los ntawm cov ntaub ntawv koob nrog rau qhov zoo-grained nto.
Kev ua haujlwm
Tom qab siv sijhawm ntev, cov khoom siv hauv nqe lus nug tuaj yeem tawm suab ntau ntxiv thiab tsis zoo. Yog tias lub sijhawm no hloov mus rau qhov tsis tu ncua rattling, chav tsev yuav tsum tau disassembled, qhov ua rau ntawm qhov teeb meem yuav tsum nrhiav thiab kho. Tsis tas li ntawd, nws yuav tsis yog superfluous los xyuas cov kauj thiab cov tub ntxhais. Ua ntej sib dhos, nws raug nquahu kom ua cov khoom ua haujlwm nrog cov ntaub qhwv huv, thiab kuj xyuaspob qhov rooj rau deformations thiab tawg.
Technical parameters
Kev ua haujlwm ntev ntawm lub tshuab hluav taws xob tsis thim rov qab yog txiav txim siab los ntawm kev tshuaj xyuas cov neeg kho tshuab kev ruaj ntseg ntawm cov neeg ua haujlwm. Nyob rau hauv yuav luag txhua yam electromagnetic relay, cov chaw tsim tshuaj paus qhia ob hom warranty. Qhov thib ob tsis muaj kev txhawj xeeb txog hluav taws xob durability, uas resists ib tug ua hauj lwm arc.
Lub peev xwm hloov pauv ntawm lub cuab yeej txiav txim siab qhov muaj peev xwm ntawm kev hloov pauv thiab qhov siab tshaj plaws tam sim no, uas tso cai rau tsis ua txhaum cov lus qhia tshwj xeeb rau hnav tsis kam teev hauv cov lus qhia. Piv txwv li, ua rau 8 mus rau 10 zaug hauv ib feeb qhia tias muaj kev ua haujlwm tsis zoo.
Synchronous fuse deactivation qhia tau hais tias kev sib cuag zoo thiab kev siv hluav taws xob ua haujlwm ntev. Yog hais tias cov tshuaj tiv thaiv ploj mus ntawm ib qho chaw, qhov no qhia tau hais tias muaj peev xwm ntawm arc forming, uas welds cov pab pawg neeg ua haujlwm, ua rau lawv siv tsis tau. Qhov kev txwv tsis pub muaj yog hais txog lub sijhawm txhais tau tias cuam tshuam rau txhua tus yam ntxwv tseem ceeb ntawm lub tshuab hluav taws xob pib.
Kev siv fais fab tuaj yeem xa rov qab rau kev hloov thiab kev ua haujlwm ntawm lub ntsiab relay. Cov yam ntxwv ntawm kev tiv thaiv thermal ua rau nws muaj peev xwm khaws tau kev ncaj ncees ntawm lub cev muaj zog windings, tiv thaiv cov cuab yeej tsis ua haujlwm.
Recommendations
Yog tias cov cuab yeej hauv nqe lus nug siv tsis raug, qhov sib txawv ntawm kev puas tsuaj vim qhov pib tsis raug tuaj yeem ncav cuag 30-40 feem pua (yog tiasmuaj qhov ua kom tsis raug ntawm cov cuab yeej siv). Lub sijhawm no tshwj xeeb yog cuam tshuam los ntawm kev vibration thiab bouncing ntawm qhov chaw thaum lub fading indicators yog muab tua ntawm ib tug tej yam amplitude. Qhov siab dua qhov hnyav ntawm qhov txav mus, qhov qis dua lub zog nias.
Raws li txoj cai, qhov tshwm sim arc tawm mus thaum lub tshuab hluav taws xob tua. Lub sijhawm hloov pauv feem ntau yog kho ntawm xoom. Ntawm qhov zaus ntawm 50 Hz, qhov xwm txheej no tuaj yeem tshwm sim tsis pub ntau tshaj 100 zaug hauv ib ob. Yog li ntawd, cov txheej txheem hloov tshiab tsis tshwj xeeb tshaj yog cuam tshuam rau kev tiv thaiv kev ua haujlwm ntawm chav tsev. Silver hu muab kev ua tau zoo.
Summarize
Cov yam ntxwv thiab cov yam ntxwv ntawm lub tshuab hluav taws xob pib tau tham saum toj no. Raws li tuaj yeem pom los ntawm kev tshuaj xyuas, cov khoom siv tuaj yeem ua haujlwm nrog qhov hluav taws xob ntawm 380 thiab 220 volts, nrog rau kev hloov pauv lub zog muaj txiaj ntsig. Nws raug nquahu kom xaiv cov khoom siv raws li kev txiav txim siab raws li qhov kawg tsis thiab cov haujlwm tsim. Muaj kev hloov kho ntawm lub khw uas txaus siab rau cov neeg siv kev thov rau kev ua kom lub zog ntawm ib chav tsev lossis lub automation ntawm tag nrho cov kev cob qhia ntau lawm.
