Electromagnetic contactors: daim duab thaiv. Dab tsi yog electromagnetic contactors

Cov txheej txheem:

Electromagnetic contactors: daim duab thaiv. Dab tsi yog electromagnetic contactors
Electromagnetic contactors: daim duab thaiv. Dab tsi yog electromagnetic contactors

Video: Electromagnetic contactors: daim duab thaiv. Dab tsi yog electromagnetic contactors

Video: Electromagnetic contactors: daim duab thaiv. Dab tsi yog electromagnetic contactors
Video: Webinar "Pengembangan Teknologi Mobil Listrik Hemat Energi 2024, Hlis ntuj nqeg
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Nrog rau kev txhim kho thev naus laus zis hauv kev lag luam hluav taws xob, muaj kev xav tau ntxiv los tswj thiab tswj nws. Qhov no yuav tsum muaj cov khoom siv tshwj xeeb. Electromagnetic contactors tau dhau los ua cov khoom siv xav tau tshaj plaws. Qee qhov ntawm lawv yog siv los txuas tus kheej cov ntsiab lus ntawm ntau lub tswv yim.

Kev piav qhia ntawm lub tshuab

Lo lus "tus neeg tiv tauj" yog hais txog cov chaw taws teeb tswj uas ua haujlwm ntawm kev kaw thiab qhib cov kab hluav taws xob nyob rau hauv kev ua haujlwm ruaj khov. Cov khoom siv no tau siv dav thiab yog lub ntsiab sib txuas ntawm cov khoom siv hluav taws xob hluav taws xob hluav taws xob.

Yav dhau los, cov contactors no tau siv los tswj thiab saib xyuas lub cav ntawm railway hluav taws xob locomotives thiab lwm yam zoo sib xws. Tam sim no, lawv feem ntau siv hauv hluav taws xob thiab hluav taws xob hauv tsev txhua hnub.

Electromagnetic contactor KM20
Electromagnetic contactor KM20

nyob ntawm homNyob rau hauv lub tsav switching system, muaj electromagnetic, pneumatic thiab hydraulic contactors. Lub hauv paus ntawm kev sib cuag thiab arc extinguishing systems, lub kinematics ntawm mechanisms thiab lwm qhov chaw yog zoo sib xws nyob rau hauv lawv cov kev nqis tes ua nyob rau hauv cov khoom siv.

Raws li lub sijhawm kaw thiab qhib cov kab hauv qee lub sijhawm, cov neeg sib txuas tau muab faib ua cov chav kawm uas cim 0.3, 1.3, 10, 30. Cov ntsuas no sib haum rau ntau zaus ntawm 30, 120, 1200 thiab 3600 circuits / qhib hauv 60 feeb.

Device classification

Cov electromagnetic contactors hauv lawv cov kev faib tawm tau muab faib ua:

  • los ntawm hom hluav taws xob hauv lub ntsiab Circuit Court thiab tswj kab - ncaj qha tam sim no, hloov tam sim no lossis ncaj qha thiab hloov tam sim no ua ke;
  • los ntawm tus lej ntawm tus ncej loj (ntawm 1 txog 5);
  • raws li qhov ntsuas tam sim no ntawm cov kab tseem ceeb (ntawm 1.5 txog 4800 A);
  • raws li qhov ntsuas hluav taws xob ntawm cov kab tseem ceeb (ntawm 27 txog 2000 V DC, ntawm 110 txog 1600 V AC thiab nrog zaus ntawm 50 txog 10000 Hz);
  • raws li qhov ntsuas hluav taws xob ntawm lub tshuab hluav taws xob suav nrog (los ntawm 12 V txog 440 hauv AC network, los ntawm 12 txog 660 V hauv AC kab ntawm zaus ntawm 50 Hz thiab hauv AC voltage network los ntawm 24 mus rau 660V nrog 60 Hz zaus);
  • los ntawm qhov muaj kev sib cuag thib ob (nrog lossis tsis muaj kev sib cuag).
  • dawb contactor
    dawb contactor

Electromagnetic contactor-pib kuj tau muab faib los ntawm hom kev hloov ntawm cov neeg siv hluav taws xob ntawm cov kab tseem ceeb thiab cov kab tswj hwm, los ntawm txoj kev teeb tsa, los ntawm txoj kev sib txuas ntawm cov neeg thib peb.conductors thiab lwm yam.

Cov kev ntsuas no tsuas yog muab rau cov khoom siv uas tau tsim nyob rau hauv ib qho kev cog qoob loo.

Function ntawm contactors

Kev ua haujlwm ruaj khov ntawm cov cuab yeej txiav txim siab thaum qhov hluav taws xob ntawm qhov sib txuas ntawm txoj kab tseem ceeb nce mus txog 1, 1 thiab cov kab tswj ntawm 0.85 txog 1.1 ntawm cov ntsuas hluav taws xob ntawm cov circuits. Tsis tas li ntawd qhib yog lub siab ntev rau kev ua hauj lwm ib txwm ntawm tus contactor thaum lub sij hawm txo ntawm AC voltage mus rau 0.7 los ntawm ib tug xam, thaum lub luag hauj lwm ntawm lub kauj yog tuav lub armature ntawm hluav taws xob hlau nplaum nyob rau hauv qhov ze tshaj plaws tau thiab thaum lub sij hawm voltage. poob nws yuav tsum tsis txhob ncua nws.

Kev hloov pauv ntawm cov khoom siv hluav taws xob hluav taws xob tsim tawm hauv kev lag luam yog tsim los rau kev lag luam hauv ntau thaj chaw huab cua, nrog rau ntau yam kev cuam tshuam, uas tau txiav txim los ntawm qhov chaw thaum lub sijhawm ua haujlwm, cov txheej txheem tshuab thiab kev cuam tshuam ib puag ncig tsis zoo. Cov khoom siv hauv lawv cov qauv tsim dav dav tsis muaj kev tiv thaiv tshwj xeeb tiv thaiv sab nraud.

dub contactor
dub contactor

Kev ua haujlwm ntawm kev kaw cov contactors tshwm sim thaum lub sijhawm ntws ntawm tam sim no mus rau winding ntawm lub tshuab electromagnetic. Lub thauj tog rau nkoj ntawm lub caij no txav mus rau qhov tseem ceeb thiab nyob rau tib lub sijhawm nrog qhov no, kev sib cuag ntawm lub xov tooj ntawm tes mus txog qhov kev sib cuag ruaj khov. Lub zog hluav taws xob tau hloov pauv.

Qhov tseem ceeb hauv daim duab kab hluav taws xob ntawm cov hluav taws xob hluav taws xob yog ua raws li qhov tseeb. Nco ntsoov ua raws li cov cai tswj kev nyab xeeb thaum ua haujlwm nrog cov khoom siv hluav taws xob. Tsis txhob ua ib qho kev ua haujlwm nrog cov haujlwm ua haujlwm uas muaj zog.

Qhib yog tus cwj pwm los ntawm kev poob qis ntawm lub kauj. Muaj kev cuam tshuam ntawm cov neeg raug kaw vim qhov kev ua ntawm lub ntiajteb txawj nqus ntawm cov khoom txav thiab qhov ncaj ntawm lub caij nplooj ntoos hlav rov qab.

electromagnetic contactor
electromagnetic contactor

Device tsim

Lub tshuab hluav taws xob sib nqus muaj xws li cov haujlwm tseem ceeb xws li kev sib cuag tseem ceeb, arcing thiab electromagnetic system, kev pab cuam thib ob.

Cov neeg sib cuag tseem ceeb ua haujlwm ntawm kev kaw / qhib cov kab hluav taws xob. Lawv lub peev xwm ua haujlwm tau tsim los rau kev siv zog mus sij hawm ntev, ntau lub sijhawm ua haujlwm ntawm / tawm nrog lub siab tshaj plaws ntawm kev ua tiav.

Lub xeev ib txwm muaj kev sib cuag tau txiav txim siab thaum lub rub-hauv coil tsis muaj zog, thiab tag nrho cov tshuab latches nyob hauv lub xeev dawb. Cov kev sib cuag tseem ceeb tuaj yeem yog qib lossis hom choj. Lever-type contacts muaj lub zog txav nrog lub peev xwm tig, thaum tus choj-hom kev sib cuag muaj lub zog txav mus tom ntej.

Electric arc extinguishing system

Lub arc-extinguishing tsim ncaj qha tua hluav taws xob arc uas tshwm sim thaum lub ntsiab tiv tauj raug tua. Nws txoj kev thiab cov tswv yim rau kev sib txuas electromagnetic contactors, nrog rau kev tsim ntawm lub hauv paus ntsiab lus arcing, yog txiav txim los ntawm hom tam sim no ntawm lub ntsiab Circuit Court thiab cov kev khiav hauj lwm tej yam kev mob ntawm tus contactor nws tus kheej.

Arc cov ntaub ntawv thawvDC cov khoom siv yog tsim los ntawm lub hauv paus ntsiab lus ntawm kev tiv thaiv arc los ntawm kev sib nqus teb hauv cov khoom nrog cov qhov ntev. Lub teb ntawm ib tug sib nqus xwm, nyob rau hauv lub ntsiab tus naj npawb ntawm cov qauv, zoo siab los ntawm ib tug arcing coil txuas nyob rau hauv lem nrog rau cov neeg.

hluav taws xob contactor
hluav taws xob contactor

Kev xaiv tus neeg tiv tauj

MK series ntawm electromagnetic contactors yog siv nyob rau hauv kev tsheb ciav hlau raws li tsheb, trolleybuses thiab loj industrial tsau installation. Cov khoom siv no ua haujlwm hauv circuits nrog ncaj qha tam sim no thiab alternating tam sim no. Qee cov qauv siv hauv of the elevator low-voltage integrated control units.

Kev xaiv cov khoom siv hluav taws xob no yuav tsum ua raws li cov kev cai hauv qab no:

  • teb siv thiab lub hom phiaj ntawm kev ua haujlwm;
  • daim ntawv thov qeb;
  • kev ruaj ntseg ntawm kev siv tshuab thiab hloov pauv;
  • tus naj npawb ntawm pawg neeg sib cuag hauv electromagnetic contactors;
  • hom tam sim no thiab lub zog ntawm qhov ntsuas hluav taws xob, suav nrog lub hauv paus loj;
  • ntsuas voltage thiab xav tau lub zog coil;
  • huab cua thiab cov txheej txheem khiav haujlwm.
  • electromagnetic contactor pib
    electromagnetic contactor pib

Tus nqi khoom siv

Cov neeg sib cuag ntawm lub khw muag khoom hluav taws xob raug muag ntawm tus nqi sib txawv. Nws nyob ntawm cov yam ntxwv kev, qauv thiab kev hloov kho, cov xwm txheej thiab hom kev siv thiab cov chaw tsim khoom lub tuam txhab. Piv txwv li, tus nqi ntawm ib tug electromagnetic contactor rau 4 kW AC fluctuates nyob rau hauvnyob ib ncig ntawm 1000 rubles, thiab tus contactor qauv KT-6023 twb raug nqi txog 6300 rubles.

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