Pib tam sim no

Thaum muaj nyob rau hauv lub lag luam ntawm tej apparatus, mechanism los yog ntaus ntawv rau ib lub sij hawm ntawm lub sij hawm nyob rau hauv uas muaj cov dab, uas yog hu ua tsis yog-nyob ruaj ruaj los yog launchers. Lub nto moo tshaj plaws piv txwv ntawm lub neej - mus rub deb, cia hais tias, ib tug loaded tsheb, tsheb ciav hlau, kom meej meej heev nws qhia tau hais tias cov thawj zaug hwj chim boost yog feem ntau yuav tsum tau ntau tshaj li lub dag zog nyob rau hauv lub neej yav tom ntej.

Cov tib phenomena tshwm sim nyob rau hauv hluav taws xob pab kiag li lawm: teeb, motors, electromagnets, etc. Pib dab nyob rau hauv cov pab kiag li lawm nyob rau lub xeev ntawm kev ua hauj lwm cov khoom: filament teeb, lub xeev ntawm magnetization ntawm cov tub ntxhais ntawm ib tug electromagnet kauj, cov neeg kawm ntawv ntawm ionization ntawm lub interelectrode kis nyob rau hauv roj paug teeb , lwm yam Piv txwv li, xav txog lub filament ntawm lub qhov muag teev. Nws yog zoo dua lub npe hu hais tias nyob rau hauv lub txias lub xeev, nws muaj ib tug ntau sab kuj tshaj thaum nws
rhuab mus txog 1000 degrees. nyob rau hauv lub khiav hauj lwm hom. Sim los mus laij lub kuj
filament rau 100-watt teeb - txog 490 ohms, thiab ohmmeter ntsuas nyob rau hauv kaw lub xeev nws yog tsawg tshaj li 50 ohms. Thiab tam sim no lub feem ntau nthuav - suav cov inrush tam sim no, thiab koj yuav to taub vim li cas qhov muag teev yog lit thaum switched.

Nws hloov tawm hais tias thaum lub tam sim no yog muab rau nce mus txog 4-5 A, uas yog lub hwj chim tau ntawm ntau tshaj 1 kW. Yog li ntawd yog vim li cas yog ib tug 100-watt cov qhov muag teeb tsis hlawv, "tsis muaj kev zam"? Yog vim hais tias, cua sov, lub teeb teeb filament muaj
ua kuj, uas nyob rau hauv lub khov kho lub xeev yuav tsis tu ncua, ib tug loj pib tus nqi, thiab txwv cov kev khiav hauj lwm tam sim no ntawm ib ncig ntawm 0.5 A.

Electric motors muaj ntau daim ntawv thov nyob rau hauv lub kos duab, yog li kev txawj ntse ntawm cov yam ntxwv ntawm lawv starting yam ntxwv yog ib qho tseem ceeb rau kom zoo lag luam eletroprivodov. Plam thiab torque rau tus ncej - lub ntsiab rau lub pib tam sim no tej chaw. Thawj uake lub electromagnetic teb nrog txoj kev sib hloov ceev thiab rotor ceev nrog ib tug txheej ceev txo los ntawm 1 mus rau ib tug tsawg kawg nkaus tus nqi, thiab lub thib ob thiab txiav txim seb tus neeg kho tshuab load rau tus ncej, lub siab tshaj plaws nyob rau thaum pib ntawm start-up thiab tom qab ib tug nominal tag nrho acceleration. Asynchronous lub cev muaj zog thaum lub sij hawm mus dhia-up rau qhov sib npaug transformer luv luv-circuited theem nrab winding. Vim nws me me
Kuj pib tam sim no ntawm lub cev muaj zog dheev nce mus txog ib tug tenfold dhau heev lawm ntawm nws nyob muaj nqis.

tam sim no mov mus rau lub rotor windings tau nyob rau hauv saturation ntawm cov tub ntxhais nce nyob rau hauv lub magnetic teb, lub tsos ntawm ib tug emf self-inductance, uas ua rau yus ib qho kev nce nyob rau hauv lub inductive
Circuit Court kuj. Lub rotor pib tig, thiab lub ris hauv qab piv decreases, i.e., Nws accelerates lub cav. Nyob rau hauv rooj plaub no tus pib tam sim no nrog nce kuj txo mus rau ib tug khov kho tus nqi.

Cov teeb meem tshwm sim los ntawm qhov tshwm sim uas muaj zog inrush currents tshwm sim
vim overheating ntawm electric motors, lub overload ntawm hluav taws xob tes hauj lwm thaum lub caij
pib-up, qhov tshwm sim ntawm cov neeg kho tshuab poob siab loads txuas mechanism xws li zog. Muaj ob chav kawm ntawm pab kiag li lawm uas daws tau cov lus nug no nyob rau hauv niaj hnub siv tshuab - mos starters thiab zaus converters.

Lawv xaiv - nws yog ib qho engineering teeb meem nrog tus tsom xam ntawm ntau hauj lwm
yam ntxwv. Lub load nyob rau hauv tiag tiag tej yam kev mob ntawm kev siv ntawm electric motors yog muab faib ua ob pawg: twj tso kua mis-kiv cua thiab general. Mos starters yog dua li siv rau loads kiv cua unit. Tej regulators txwv cov inrush tam sim no mus rau ib theem tsis siab tshaj 2 nominal qhov tseem ceeb, es tsis txhob ntawm 5-10 lub sij hawm qhov dog dig start-up, los hloov tus voltage windings.

Cov feem ntau lug siv nyob rau hauv lub lag luam yog hluav taws xob motors ntawm alternating tam sim no. Txawm li cas los, lawv yooj yim tsim thiab tus nqi qis yog cov kev coj rov qab - hnyav starting tej yam kev mob uas alleviated los ntawm txoj kev zaus converters. Ib tug tshwj xeeb tseem ceeb cov feature ntawm zaus
transducer kev pab txhawb nqa inrush tam sim no induction lub cev muaj zog rau
ib tug ntev lub sij hawm - ib feeb los yog ntau tshaj. Qhov zoo tshaj plaws piv txwv ntawm niaj hnub converters yog ntse li kev khiav hauj lwm tsis cia li pib tswj cov txheej txheem, tab sis kuj optimize cov pib ntawm txhua kev ua tau zoo no: qhov ntau thiab persistence ntawm pib tam sim no, tus nqi rau ncej torque, lub zoo hwj chim tshaj, thiab lwm yam