Koj tuaj yeem txheeb tau li cas thiab txo lub suab nrov hauv koj lub voj voog

Koj tuaj yeem pom cov suab nrov rapay los ntawm cov kev sib hais los yog pom cov kev ua khib. Ua yeeb yam ceev nres kev puas tsuaj thiab ua kom koj lub cev ua haujlwm zoo. Rapay suab nrov muaj nyob rau ntau lub voj voog, yog li tsis muaj kev ntxhov siab. Koj tuaj yeem kho nws nrog cov kauj ruam zoo thiab ua rau koj cov kev ncig zoo dua. Ob tus neeg kawm tshiab thiab cov kws tshaj lij tuaj yeem siv suab nrov repay nrog cov cuab yeej yooj yim thiab cov kev.

Tseem Ceeb Takaways

Koj tuaj yeem pom lub suab nrov relay los ntawm kev mloog rau cov nias lossis buzzing. Saib rau cov kev coj txawv txawv. Kev kuaj xyuas feem ntau pab koj pom teeb meem thaum ntxov.

Siv RC snubbers thiab flyback diodes rau cov suab nrov qis. Cov seem no pab tswj cov hluav taws xob ntau. Lawv tseem ua kom koj lub Circuit Court muaj kev phom sij.

Wiring zoo yog qhov tseem ceeb heev. Khaws qis - voltage hlau tawm ntawm high- voltage sawv. Qhov no pab kom tsis txhob cuam tshuam thiab suab nrov.

Xav tau kev saib xyuas tsis tu ncua. Kos rau kev sib txuas thiab kev sib txuas tau ntau zaus. Qhov chaw nres luv no thiab ua kom koj lub voj voog ua haujlwm zoo.

Siv kev lim kom ntxuav cov paib. Tsawg {-}}}}}}}}}}} Kev lim dej thiab teeb liab kev pab txiav cov suab nrov tsis xav tau hauv koj lub voj voog.

Relay Suab nrov

Hluav Taws Xob Hluav Taws Xob thiab Txhua Yam Ua Rau Txhua Yam

Lub suab nrov relay tuaj yeem los ntawm cov hluav taws xob lossis tshuab siv tshuab. Thaum koj ua haujlwm nrog circuits, koj yuav pom cov hluav taws xob ua rau:

Peev nyiaj yuav khoom txuas ntxiv thaum muaj kev kub siab - voltage hlau muab lub zog rau lwm cov xov hlau. Qhov no feem ntau yog vim yog qhov hluav taws xob voltage lossis surges.

Inductive txuas yog thaum xaim nrog cov tam sim no ua rau cov kev voltage tsis txaus nyob hauv lwm cov hlau. Qhov no tuaj yeem ua rau hluav taws xob cuam tshuam hluav taws xob.

Flyback voltage pom thaum koj tua lub chaw thau hluav taws xob hauv cov khoom siv relay. Lub kauj mus sim ua kom txoj kev mus tam sim no, uas ua rau lub loj voltage loj. Qhov ntsia hlau loj no tuaj yeem ua rau arcing thiab nqa suab nrov rau hauv koj lub Circuit Court. Qee zaum, nws tuaj yeem pib microcontrollers lossis ua phem rau lwm qhov chaw.

Neeg kho tshuab tej yam tseem ua rau muaj suab nrov:

Arcing tshwm sim thaum xa cov neeg sib tham qhib lossis kaw. Qhov no ua lub suab hluav taws xob thiab tuaj yeem thab cov khoom siv nyob ze.

Koj yuav hnov ​​zoo li qub hauv cov cim suab vim tias muaj kev sib.

Kev sib tham relay tuaj yeem hnav tawm lossis lo ua ke lub sijhawm. Qhov no ua rau muaj teeb meem nrov nrov.

Hloov cov khoom lag luam inductive tuaj yeem ua rau arcing thiab suab nrov.

Cov lus qhia: Tshawb xyuas thiab huv si Reeay tiv tauj ntau. Qhov no pab cov suab nrov tsawg dua thiab ua rau muaj kev tso ncua ntev dua.

EMI thiab ib puag ncig cov khoom siv

Electromagnetic cuam tshuam (EMI) tuaj yeem ntxiv rau suab nrov. Thaum koj tig rov qab ntawm lossis tawm, qhov kev hloov nrawm nrawm tam sim no tuaj yeem ua rau hloov chaw.

"When electric current changes fast because of relaying or switching on-off (especially when the circuit turns off), a short high voltage happens at the contact point because of the circuit's inductance. This is called switching surge. The contact noise is the noise from a switching surge. Since very high voltage happens, it can make a spark or send out radio waves because the strong damped oscillating current at the contact point mixes with inductance. "

Yam nyob ib puag ncig koj kuj tseem tuaj yeem hloov suab nrov. Cov lus hauv qab no qhia tau ntau yam sib txawv tuaj yeem cuam tshuam kev ua tau zoo:

Koj yuav tsum xav txog cov teeb meem no thaum koj xav tau cov suab nrov tsawg hauv koj lub voj voog. Yog tias koj paub txog cov khoom siv hluav taws xob thiab ib puag ncig, koj tuaj yeem ua rau koj lub voj voos thiab ua haujlwm zoo dua.

Paub lub suab nrov rapay

Audible thiab pom kev

Koj tuaj yeem nrhiav lub suab nrov relay los ntawm kev siv koj lub siab. Mloog rau khib nias, buzzing, lossis popping thaum cov relay ua haujlwm. Cov suab no yuav txhais tau tias arcing lossis hu bounce hauv relay. Saib rau cov spints me me lossis flashes ze rau cov neeg sib cuag relay. Qee zaum, koj yuav pom cov ntsais muag lossis cov ntxaij ua yeeb yam txawv txawv thaum xa hluav taws xob.

Saib ntawm koj cov Circuit Court Board pab koj pom teeb meem. Txheeb xyuas tus thawj coj kom zoo kom ua raws li cov xov hlau thiab nrhiav cov khoom tawg lossis qub. Txoj kev no, koj tuaj yeem pom yog tias muaj dab tsi tsis ncaj ncees lawm. Koj tsis tas cov cuab yeej tshwjxeeb rau cov kauj ruam no. Ua tib zoo cov tshev yuav pab koj nrhiav teeb meem thaum ntxov thiab ua kom koj txoj kev ua haujlwm zoo.

TSWV YIM: Siv lub khob tsom iav kom zoo rau kev saib ntawm cov neeg sib tham relay thiab cov pob qij txha sib dhos rau cov cim kev puas tsuaj lossis hlawv.

Kev Ntsuas Cov Cuab Yeej

Koj tuaj yeem siv cov cuab yeej los nrhiav cov suab nrov relay ntau dua. Cov cuab yeej siv nrog 24 V Digital I / O ua haujlwm zoo rau qhov no. Cov cuab yeej no muab cov suab nrov zoo dua thiab thaiv cov cim tsis zoo. Ntau tus muaj cov ntxaij lim dej tswv yim tuaj yeem tsim. Cov ntxaij lim dej tau tshem tawm cov cim cuav los ntawm kev sib tiv tauj thaum lub relay hloov. Kev rho tawm hauv cov cuab yeej no tseem pab los ntawm kev thaiv suab nrov los ntawm lwm cov khoom siv fais fab. Nrog rau cov cuab yeej yog, koj tuaj yeem tshawb xyuas thiab ua pov thawj relay suab nrov hauv koj lub zog.

Tus yam coj cwj pwm

Lub suab nrov relay tuaj yeem ua rau koj lub voj voos ua tsis txawv. Koj yuav pom random rov qab pib, ua cov cim qhia tawm, lossis cov qauv coj txawv txawv. Qee zaum, microcontrollers rov pib dua los yog sensors qhia tau kev nyeem tsis ncaj ncees lawm. Yog tias koj lub Circuit Court yog qhov zoo kom txog thaum lub hloov hluav taws xob, suab nrov yog qhov laj thawj. Saib rau cov qauv, xws li cov teeb meem tsuas yog thaum xa hluav taws xob puv lossis tawm. Khaws cia ntawm cov xwm txheej no tuaj yeem pab koj nrhiav thiab kho cov suab nrov.

Relay Cov Qauv Hluav Taws Xob

RC snubbers thiab flyback diodes

Koj tuaj yeem qis dua relay suab nrov nrog RC snubbers thiab flyback diodes. Tus RC Sn Sn Snarber siv lub resistor thiab capacitor ua ke thoob plaws relay sib cuag. Cov kev teeb tsa no ua rau cov voltage los ntawm kev tau txais siab dhau thaum hu qhib lossis kaw. Nws pab nres nres thiab txiav rau ntawm lub zog uas ua suab nrov. Feem ntau cov voj voog siv 0.1μf capacitor thiab 50 caum rau 100 leej tiv thaiv. Yog tias koj muaj lub siab - voltage relay, siv lub capinitor uas tuaj yeem siv ntau qhov hluav taws xob ntau dua li koj lub ntsej muag siab tshaj plaws. Yog tias qhov feem ntau yog me me, nws yuav tsis thaiv spikes. Yog tias nws loj dhau, nws tuaj yeem hloov qeeb thiab ua phem rau koj qhov chaw.

Flyback Diodes yog qhov zoo rau DC voj nrog inductive thauj khoom. Koj muab cov diode hla cov relay cheil. Thaum cov relay tig tawm, cov diode muab lub kauj tsheb lub zog ib txoj kev nyab xeeb. Qhov no nres spikes thiab ua kom lwm qhov chaw nyab xeeb. Tsis muaj ib tug flyback diode, lub kauj lub zog tuaj yeem ua rau arcing thiab puas. Siv cov dootback diode yog ib txoj hauv kev yooj yim los txiav cov suab nrov rapay thiab tiv thaiv koj cov hluav taws xob.

Hlau oxide varistors (mov) kuj tseem pab nres suab nrov. Lawv tuaj yeem ua cov surges loj thiab tus nqi tsawg dua rau high- voltage hauj lwm. Tab sis cov mov tuaj yeem hnav tawm tom qab ntau surges. TVs diries clampes clampes thiab nyob ntev nrog me me, tab sis lawv yuav raug nqi ntau rau qee qhov siv.

Cov lus qhia: Ib txwm xyuas cov kev ntaus nqi rau koj Snubber lossis Diode. Xaiv cov txiaj ntsig rau koj cov relay thiab thauj khoom kom tau txais txiaj ntsig zoo tshaj plaws.

Kev lim dej thiab teeb liab kwv yees

Kev lim pab tshem tawm siab - zaus cov cim koj tsis xav tau. Tsawg -} Kev lim lim cia tso cov paib tsis tshua muaj teeb meem los ntawm tab sis thaiv ntau dua. Qhov no ua rau koj lub cim kom huv thiab khov kho. Koj tuaj yeem ua qhov qis -} dhau lim nrog lub resistor thiab capacitor. Tso rau nws ua ntej koj analog - rau - digital converter (ADC) los ua cov cim kom meej.

Kev teeb liab kev ntsuas yog lwm txoj hauv kev kom qis dua lub suab nrov. Los ntawm kev nyeem ntau ntau, koj du tawm random spikes. Qhov no pab nyob rau hauv kev circuits uas ntsuas cov cim hluav taws me me. Qee cov ntaub ntawv sau cia cia koj muab cov taub lim ntau zaus. Piv txwv li, teeb tsa lim txog 50 lossis 60 HZ block suab nrov los ntawm AC fais fab kab. Koj tseem tuaj yeem siv cov lim tsis tau los thaiv qee yam suab nrov.

Nco tseg: Hauv cov khoom siv fais fab, qis {{{{{{{{{}}}}}} Cov suab nrov tsis sib xws los ntawm kev tshem tawm cov suab nrov nyob ze.

Xov thiab av

Wiring zoo thiab grounding pab txo qis rapay suab nrov heev. Khaws qis - voltage thiab siab - voltage hlau sib nrug. Yog tias cov xov hlau dhau lawm ze, lawv tuaj yeem dhau lub zog los ntawm kev muaj peev xwm lees paub lossis cuam tshuam txuas ntxiv. Qhov no tuaj yeem ua rau voltage spikes thiab suab nrov.

Siv cov xov hlau los yog thaiv cov paib rau cov paib.

Tsis txhob khiav cov log tsheb ntawm cov xaim hluav taws xob.

Siv thicker stranded xaim rau hauv av sib txuas. Cov qes qis tsis kam thiab cov suab nrov.

Txuas cov av hauv parallel yog tias koj tuaj yeem ua tau. Qhov teeb meem hauv av, tab sis tej zaum yuav xav tau ntau hlau.

Ua kom zoo ua rau muaj suab nrov los ntawm kis mus. Tsis txhob siv cov khoom siv hluav taws xob ua kom rov qab rau cov cim. Qhov no tuaj yeem tso suab nrov rau hauv koj cov khoom siv tswj hluav taws xob thiab ua teeb meem.

Tswv yim: Ua kom koj cov hauv av system yooj yim thiab ncaj qha. Tsis txhob ua rau loj loj los yog siv chassis raws li lub teeb liab av.

Mounting thiab Installation

Yuav ua li cas koj mount koj relay hloov cov suab nrov. Tso cov relay rau ntawm qhov chaw muaj zog, khov kho. Nyias lossis khoov duav yuav co thiab ua suab nrov tsis zoo. Siv cov khoom plig zoo kom rov qab tso tawm.

Tsis txhob mount rippays on panels uas khoov los yog co.

Nyob rau hauv cov chaw nrog ntau tshee hnyo, siv cov ntaub thaiv thiab quieter seem.

Txheeb xyuas thiab sib npaug txav chaw, zoo li rotors, kom qis tshee.

Siv cov xov hlau thicker, xws li 14 awg lossis loj dua, txiav suab nrov.

NCO TSEG: Zoo mounting thiab installation tsis tsuas yog qis dua rapay suab tab sis kuj pab tau koj cov hluav taws xob ntev dua.

Cov Lus Qhia Txij Nkawm

Cov tshev tsis tu ncua ua kom nrov nrov. Saib ntawm koj cov khoom xa tuaj ntau zaus kom pom cov teeb meem ntxov. Saib rau hnav, xoob xov hlau, lossis av. Kev sib tiv tauj kom huv thiab ua kom ntseeg tau tias txhua txoj hauv hluav taws xob nruj.

Siv cable Shielding thiab cia ntu sib nrug.

Ntxiv ferrite hlaws dai lossis cov ntxaij lim dej yog tias koj pom nrov nrov.

Shield cov kab ke tuaj yeem thaiv cov suab nrov sab nraud.

Khij txhua qhov sib txuas feem ntau.

TSWV YIM: Ua tus cwj pwm ntawm kev kuaj xyuas koj lub nraub qaum thiab xov hlau. Qhov no pab nres cov suab teeb meem thiab ua rau koj lub voj voog ua haujlwm zoo.

Los ntawm kev siv cov qauv no, koj tuaj yeem tswj cov suab nrov relay thiab tsim kev sib tw uas ua haujlwm zoo dua thiab kav ntev dua.

Koj tuaj yeem tswj lub suab nrov nrov yog tias koj ua raws li qee cov kauj ruam yooj yim:

Nco ntsoov tias txhua cov twj paj nruag tau ua rau txoj hauv kev yog thiab ua kom cov kav hlau.

Khaws qis {- voltage hlau tawm ntawm high- voltage xov hlau.

Muab cov khoom khov kho - lub xeev thim rov qab ze cov khoom siv uas yog rhiab.

Khaws nrov nrov ntawm cov tswj hwm.

Yog tias koj ib txwm siv lim, snubber circuits, thiab kev sib cais kho qhov muag, koj lub voj voos yuav ua haujlwm zoo dua. Cov cwj pwm no pab txo cov suab nrov thiab ua kom pom cov cim kom meej. Siv cov lus qhia no kom koj lub voj voos nyob ntsiag to thiab ua haujlwm zoo txhua hnub.

Cov FAQ

Dab tsi ua rau lub suab nrov nyob hauv kuv Circuit Court?

Lub suab nrov relay los ntawm cov hluav taws xob hluav taws xob, arcing, lossis cov xaim tsis zoo. Koj tuaj yeem pom suab nrov thaum hu qhib lossis kaw. Neeg kho tshuab hnav kuj ntxiv suab nrov. Koj tuaj yeem ua suab nrov qis los ntawm kev txheeb xyuas koj lub relay thiab siv cov xaim zoo.

Yuav ua li cas kuv thiaj paub tias kuv relay yog suab nrov?

Koj hnov ​​nias, buzzing, lossis popping suab. Koj tuaj yeem pom teeb tsa cov flicker lossis cov khoom siv ua haujlwm. Yog tias koj pom cov yeeb yam coj txawv txawv thaum cov relay hloov, suab nrov yog qhov ua rau.

TSWV YIM: Siv lub khob tsom iav kom pom kev rau kev sib tw hlawv lossis cov xov xoob xoob.

Dab tsi yog RC Snubber, thiab kuv yuav siv nws li cas?

Tus RC Snubber yog lub resistor thiab Capacitor tso hla kev sib cuag relay. Koj siv nws kom nres voltage spikes thiab arcing. Xaiv cov txiaj ntsig uas phim koj lub relay lub voltage thiab tam sim no. Qhov no pab ua kom koj lub Circuit Court nyob ntsiag to.

Kuv puas tuaj yeem siv cov dootback diode rau ac relays?

Koj siv flyback donges rau dc regays nkaus xwb. An Regayse xav tau lwm txoj hauv kev, xws li RC snoobers lossis txav. Diodes tsis ua haujlwm nrog AC vim tias cov kev hloov pauv tam sim no.

Kuj

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