Electromechanical Relay vs Solid State Relay: Qhov Tseem Ceeb Qhov txawv

Kev xaiv ntawm electromechanical relay thiab lub xeev cov khoom relay tsis yog ib qho teeb meem ntawm kev xaiv cov thev naus laus zis tshiab. Ob lub cuab yeej tso cai rau qis - lub zog tswj lub teeb liab los hloov qhov siab dua - lub zog thauj khoom, tab sis lawv ua tiav qhov no sib txawv heev.

Ib qho electromechanical relay, feem ntau hu ua EMR, siv lub kauj, sib nqus quab yuam, thiab lub cev tiv tauj. Lub xeev ruaj khov relay, lossis SSR, ua haujlwm hloov pauv nrog cov khoom siv hluav taws xob thiab tsis muaj kev sib cuag.

Cov txheej txheem sib txawv no cuam tshuam rau kev hloov ceev, kev pab cuam lub neej, kev tsim hluav taws xob, hluav taws xob tam sim no, kev sib cais hluav taws xob, suab nrov, nqi, thiab kev thauj khoom sib xws.

Yog li, qhov twg relay zoo dua?

Cov lus teb luv luv yog:

Xaiv lub tshuab hluav taws xob xa hluav taws xob thaum koj xav tau qis ntawm -lub xeev tsis kam, qhov hluav taws xob tsawg tsawg, hloov pauv AC / DC hloov pauv, pom kev sib cuag, lossis tus nqi qis dua.

Xaiv ib lub xeev ruaj khov relay thaum koj xav tau ceev, ntsiag to, nquag hloov tsis muaj kev sib cuag nrog cov neeg kho tshuab.

Phau ntawv qhia no piav qhia qhov sib txawv ntawm electromechanical relays thiab solid state relays los pab koj xaiv cov cuab yeej tsim nyog rau koj daim ntawv thov.

Dab tsi yog Electromechanical Relay?

Ib qho electromechanical relay yog ib qho hluav taws xob hloov hluav taws xob uas siv hluav taws xob quab yuam kom txav tau ib lossis ntau qhov kev sib cuag ntawm lub cev.

Nws cov khoom tseem ceeb hauv ib txwm muaj xws li:

Electromagnetic kauj

Armature

Caij nplooj ntoos hlav mechanism

Tsau thiab txav kev sib cuag

Terminals

Kev tiv thaiv vaj tse

Thaum lub ntsuas hluav taws xob raug siv rau lub kauj, lub kauj yuav tsim ib qho chaw sib nqus. Qhov no magnetic teb txav lub armature, ua rau cov neeg sib cuag qhib los yog kaw.

Thaum lub zog coil raug tshem tawm, lub caij nplooj ntoos hlav ib txwm rov qab cov neeg sib cuag mus rau lawv qhov chaw qub.

Raws li kev sib cuag configuration, electromechanical relay tuaj yeem muab tau:

Nquag qhib kev sib cuag

Nquag kaw cov neeg sib cuag

Hloov cov kev sib cuag

SPST hloov

SPDT hloov

DPDT hloov pauv

Ntau - ncej hloov

Electromechanical relays yog dav siv nyob rau hauv industrial tswj vaj huam sib luag, khoom siv hauv tsev, tsheb tshuab, tshuab, twj, motors, teeb pom kev zoo thiab cov khoom siv hluav taws xob.

Dab tsi yog Solid State Relay?

Ib qho khoom siv hauv lub xeev relay yog ib qho khoom siv hluav taws xob hloov hluav taws xob uas ua haujlwm zoo ib yam li electromechanical relay tab sis tsis siv cov neeg kho tshuab txav mus.

Hloov chaw, nws siv semiconductor hloov cov khoom xws li:

TRIACs

Thyristors los yog SCRs

MOSFETs

Transistors

Optocouplers

Thaum ib tug tswj voltage yog siv rau sab input, lub internal electronic circuit activates lub semiconductor tso zis. Cov zis tawm ces tso cai rau tam sim no ntws los ntawm kev sib txuas load.

Ntau SSRs siv optical coupling los muab kev sib cais hluav taws xob ntawm kev tswj cov khoom siv hluav taws xob thiab cov khoom tso tawm hluav taws xob.

Vim tias SSR tsis muaj kev sib cuag nrog cov neeg kho tshuab, nws tuaj yeem hloov tau sai thiab ntsiag to yam tsis muaj kev sib cuag bounce lossis siv tshuab. Txawm li cas los xij, nws cov khoom siv hluav taws xob semiconductor qhia txog cov yam ntxwv xws li kev poob qis, hluav taws xob tam sim no thiab hluav taws xob tsim hluav taws xob uas yuav tsum tau txiav txim siab thaum xaiv.

Electromechanical Relay vs Solid State Relay: Kev sib piv ceev

1. Txoj Cai Ua Haujlwm

Qhov sib txawv loj tshaj plaws ntawm electromechanical relay thiab cov khoom hauv lub xeev relay yog li cas lub load Circuit Court hloov.

Electromechanical relay ua haujlwm

EMR lub cev txav cov neeg sib cuag. Thaum cov kev sib cuag kaw, tam sim no ntws los ntawm cov hlau sib cuag. Thaum cov kev sib cuag qhib, qhov sib txawv ntawm huab cua cais cov khoom siv hluav taws xob.

Qhov kev sib cais ntawm lub cev no muab cov khoom siv hluav taws xob hluav taws xob tso tawm kom pom tseeb tawm - xeev thiab feem ntau cov xau tam sim no tsawg heev.

Txawm li cas los xij, txhua qhov kev sib cuag ua rau muaj kev ntxhov siab rau txhua yam. Thaum lub relay hloov lub zog thauj khoom, hluav taws xob arcing kuj tseem tuaj yeem ua rau qhov chaw sib cuag.

Lub xeev relay ua haujlwm

Ib qho SSR siv cov khoom siv semiconductor los tswj cov khoom siv hluav taws xob. Tsis muaj dab tsi txav lub cev thaum hloov.

Qhov no tshem tawm txhua yam hnav thiab kev sib cuag bounce, tab sis lub semiconductor tsis coj raws nraim li kev sib cuag hlau. Txawm tias thaum switched rau, nws tsim ib tug voltage poob. Thaum hloov tawm, qhov me me ntawm tam sim no tseem tuaj yeem dhau los ntawm cov zis.

2. Hloov ceev

Cov khoom hauv lub xeev relay feem ntau hloov sai dua li cov khoom siv hluav taws xob.

Ib qho electromechanical relay xav tau sijhawm rau:

Ua kom lub zog coil.

Tsim kom muaj ib qho chaw sib nqus.

Txav lub armature.

Kaw lossis qhib cov neeg sib cuag.

Cia kev sib cuag bounce kom daws tau.

Lub xeev ruaj khov relay ua tiav cov txheej txheem hloov hluav taws xob, yog li nws tsis tos kom lub tshuab hluav taws xob txav mus.

Qhov no ua rau SSRs haum rau cov ntawv thov uas suav nrog:

Kev tswj kub ceev ceev

Siab - zaus hloov

Ntim tshuab

Cov khoom siv semiconductor

Automated ntau lawm kab

Rov ua dua cov cua sov tswj

Txawm li cas los xij, kev hloov pauv sai dua tsis tuaj yeem ua rau SSR zoo dua. Ntau lub twj tso kua mis, kiv cua, lub teeb thiab kev tswj xyuas kev lag luam tsis tas yuav muaj kev ua haujlwm siab -.

3. Kev Pabcuam Lub Neej

Cov khoom hauv xeev relays feem ntau muaj qhov zoo dua hauv cov ntawv thov uas yuav tsum tau hloov ntau zaus.

Vim tias SSR tsis muaj kev sib cuag, nws tsis paub:

Mechanical contact hnav

Hu rau pitting

Hu rau bounce

Caij nplooj ntoos hlav qaug zog

Mechanical armature tsis ua hauj lwm

Ib qho electromechanical relay muaj ob qho tib si kev ntsuas lub neej thiab kev ntsuas hluav taws xob lub neej. Nws lub neej hluav taws xob tuaj yeem ua luv luv dua li nws lub neej txhua yam vim tias hloov lub zog ntawm lub zog tuaj yeem tsim kev puas tsuaj arcing thiab tiv tauj hnav.

Txawm li cas los xij, ib qho SSR tsis yog indestructible. Thaum tshav kub kub, overcurrent, luv circuits thiab voltage transients tuaj yeem ua rau nws cov khoom tso tawm semiconductor.

Yog li ntawd, lub neej kev pab tiag tiag ntawm ob qho tib si relay nyob ntawm:

Load hom

Hloov zaus

Inrush tam sim no

Ambient kub

Surge tiv thaiv

Kev txhim kho zoo

Relay derating

Kev tswj cua sov

4. Hloov suab nrov

Electromechanical relays ib txwm tsim ib lub suab nyem thaum lub armature txav.

Hauv ntau qhov chaw lag luam, lub suab no tsis yog teeb meem. Nws tuaj yeem muab cov lus qhia muaj txiaj ntsig zoo uas lub relay tau ua haujlwm.

Txawm li cas los xij, kev nyem relay yuav tsis xav tau hauv:

Cov cuab yeej kho mob

Cov khoom siv hauv chaw ua haujlwm

Audio systems

Cov cuab yeej kuaj

Kev tswj chaw nyob

Suab nrov-sensitive automation systems

Lub xeev muaj zog relay ua haujlwm ntsiag to vim nws tsis muaj txav armature lossis kev sib cuag.

Yog tias kev ua haujlwm ntsiag to yog qhov tseem ceeb, SSR feem ntau yog qhov kev xaiv zoo dua.

5. Hu rau Bounce

Thaum cov kev sib cuag nyob rau hauv ib tug electromechanical relay kaw, lawv yuav luv luv thaws ua ntej nyob rau hauv ib tug ruaj khov txoj hauj lwm.

Qhov no tuaj yeem tsim ntau qhov kev hloov pauv hluav taws xob sai es tsis yog ib qho kev hloov pauv zoo kawg nkaus. Kev sib cuag bounce tuaj yeem cuam tshuam rau cov hluav taws xob hluav taws xob, cov txee lossis siab - cov khoom siv digital ceev ceev.

Lub xeev ruaj khov relay tsis muaj cov neeg kho tshuab kev sib cuag thiab yog li tsis muaj kev sib cuag ntawm cov neeg kho tshuab.

Rau feem ntau lub cev muaj zog, cua sov thiab cov khoom siv dav dav, kev sib cuag bounce tsis yog ib qho kev txhawj xeeb loj. Rau kev hloov cov teeb liab rhiab heev, nws yuav xav tau kev lim dej ntxiv lossis debounce logic.

6. Ntawm -Lub Xeev Voltage poob thiab kub

Qhov no yog ib qho tseem ceeb sib txawv ntawm electromechanical thiab solid state relays.

Electromechanical relay tshav kub

Thaum noj qab haus huv EMR cov neeg raug kaw, lawv qhov kev tiv thaiv feem ntau qis heev. Yog li ntawd, lub zog poob thoob plaws cov neeg sib cuag feem ntau txwv.

Lub coil tseem siv hluav taws xob thiab ua kom muaj cua sov, tab sis cov neeg kaw kaw feem ntau tsim hluav taws xob tsawg dua li cov khoom siv hluav taws xob uas nqa tib lub tam sim no.

Solid state relay tshav kub

Ib qho khoom hauv lub xeev relay muaj rau ntawm - lub xeev qhov hluav taws xob poob thoob plaws nws cov khoom siv hluav taws xob.

Lub kwv yees lub zog dissipated los ntawm SSR tuaj yeem xam raws li:

[
P=V_{\\text{drop}} \\times I_{\\text{load}}
]

Piv txwv li, yog tias SSR muaj rau ntawm - lub xeev qhov hluav taws xob poob ntawm 1.5 V thiab nqa 20 A:

[
P=1.5 \\times 20=30\\text{W}
]

Peb caug watts yog ib qho tseem ceeb ntawm cov cua sov. SSR tuaj yeem xav tau:

Kho qhov ntsuas kub kom raug

Thermal compound los yog thermal ncoo

Ventilated enclosure

Qhov sib nrug txaus

Tam sim no derating

Kev ntsuas kub

Ib qho kev xaiv SSR feem ntau yog xaiv ib qho relay tsuas yog nyob ntawm nws cov ntawv luam tawm tam sim no yam tsis suav cov cua sov dissipation.

7. Cov dej ntws tam sim no nyob rau hauv Off State

Thaum lub electromechanical relay qhib, nws cov neeg sib cais feem ntau muab qhov tsis tshua muaj hluav taws xob tawm - lub xeev cov xau tam sim no.

Ib qho khoom siv hauv lub xeev relay tuaj yeem tso cai me me ntawm tam sim no dhau los ntawm cov zis txawm tias nws raug kaw. Qhov no yog ib tug yam ntxwv ib txwm ntawm semiconductor outputs thiab internal snubber circuits.

Txawm hais tias qhov xau tam sim no me me, nws tuaj yeem ua teeb meem nrog:

LED teeb uas ci ntsa iab

Sensitive electronic inputs

Siab -impedance loads

Me me solenoids

Cov cuab yeej ntsuas

Saib xyuas kev nyab xeeb kev xav

Yog li ntawd, SSR yuav tsum tsis txhob raug kho raws li lub cev tag nrho.

Yog hais tias daim ntawv thov yuav tsum tau tsis tshua muaj leakage los yog pom kev sib cais, ib tug electromechanical relay los yog ib tug ntxiv mechanical cais ntaus ntawv tej zaum yuav zoo dua.

8. AC thiab DC Load Compatibility

Electromechanical relay tiv tauj tuaj yeem hloov pauv AC lossis DC hauv cov chaw tsim khoom cov kev ntsuas.

Lub xeev ruaj khov relay yuav tsum raug xaiv raws li nws cov khoom siv thev naus laus zis.

Feem ntau SSR configurations muaj xws li:

DC input rau AC tso zis

AC input rau AC output

DC input rau DC tso zis

AC input rau DC tso zis

Ib qho AC- tso zis SSR feem ntau siv TRIAC lossis SCR. Cov khoom siv no cia siab rau AC tam sim no hla xoom kom tua thiab yog li feem ntau tsis tsim nyog rau kev hloov DC loads.

DC- tso zis SSR tuaj yeem siv MOSFETs lossis transistors. Qee cov qauv DC yog polarity-sensitive.

Nco ntsoov xyuas:

Input tswj voltage

Output load voltage

AC lossis DC tso zis hom

Maximum nruam tam sim no

Yam tsawg kawg nkaus load tam sim no

Tawm - xeev xau

Ntawm - lub xeev qhov hluav taws xob poob

Tsis txhob xav tias qhov ntsuas SSR rau ib qho hluav taws xob tshwj xeeb tuaj yeem hloov AC thiab DC.

9. Inrush tam sim no thiab overload kam rau ua

Ntau cov khoom siv hluav taws xob kos qhov pib tam sim no ntau dua li lawv qhov kev khiav hauj lwm tam sim no.

Piv txwv li:

Lub cev muaj zog

Hloov pauv

Incandescent teeb

Cov khoom siv hluav taws xob capacitive

Solenoids

Compressors

Electromechanical relay tiv tauj feem ntau tuaj yeem zam qhov luv luv tam sim no surges zoo dua li cov khoom siv hluav taws xob semiconductor, yog tias cov relay muaj qhov tsim nyog load.

Cov khoom hauv lub xeev relays tuaj yeem raug puas tsuaj sai heev los ntawm cov tam sim no ntau dhau. Kev tiv thaiv yuav xav tau:

Fast - ua yeeb yam semiconductor fuse

Circuit Court breaker

MOV

TVS diode

RC swb

Flyback diode

Tsim nyog tam sim no derating

Lub relay yuav tsum tau xaiv siv lub load pib los yog inrush yam ntxwv -tsis tsuas yog nws khov kho- lub xeev tam sim no.

10. Hloov Inductive Loads

Inductive loads tuaj yeem tsim hluav taws xob hloov pauv thaum tam sim no cuam tshuam.

Piv txwv li:

Relay coils

Solenoids

Lub cev muaj zog

Valves

Contactors

Hloov pauv

Rau DC coils, lub flyback diode feem ntau muab tso rau thoob plaws lub thauj khoom txhawm rau txhawm rau thim rov qab qhov hluav taws xob tsim tawm thaum tam sim no raug kaw.

Rau AC loads, RC snubber lossis MOV yuav tsim nyog, nyob ntawm lub voj voog.

Ob qho tib si electromechanical thiab solid state relays yuav tsum tau ceev faj tiv thaiv thaum hloov inductive loads. Txoj kev tiv thaiv raug yog nyob ntawm qhov load voltage, tam sim no, hloov ceev thiab lub sij hawm tso cai.

11. Zero-Cross Switching

Qee lub xeev AC cov khoom siv hluav taws xob siv xoom- hla kev hloov pauv.

Tus xoom- hla SSR tos kom txog thaum AC waveform ze rau xoom ua ntej qhib. Qhov no yuav txo tau:

Hluav taws xob nrov

Electromagnetic cuam tshuam

Sudden tam sim no hloov

Hloov kev ntxhov siab hauv qee qhov kev tiv thaiv

Zero-cross SSRs feem ntau yog siv rau:

Hluav taws xob cua sov

Kev tswj qhov kub thiab txias

Qhov cub

Cov cuab yeej siv cua sov

Txawm li cas los xij, xoom- kev hloov pauv tsis zoo rau txhua daim ntawv thov. Theem tswj, dimming thiab tej yam inductive loads yuav xav tau ib tug random tig - ntawm SSR los yog lwm txoj kev tswj.

12. Kev cais hluav taws xob

Ob hom relay tuaj yeem muab kev sib cais ntawm qhov qis - fais fab tswj Circuit Court thiab siab dua - fais fab load Circuit Court.

Ib qho electromechanical relay cais cov kauj los ntawm kev sib cuag los ntawm kev tsim kho lub cev.

Ntau lub xeev relays siv lub optocoupler los cais cov tswv yim los ntawm cov zis.

Thaum sib piv kev ua haujlwm ntawm kev sib cais, tshuaj xyuas cov chaw tsim khoom qhov tseem ceeb rau:

Dielectric zog

Rwb thaiv tsev tsis kam

Creepage nrug

Clearance nrug

Surge withstand voltage

Kev pom zoo kev nyab xeeb

Lo lus "relay" ib leeg tsis lav tias ib qho qauv ua tau raws li qhov yuav tsum tau muaj kev sib cais ntawm koj lub cev.

13. Hom kev ua tsis tiav

Kev nkag siab yuav ua li cas relay yuav ua tsis tau yog qhov tseem ceeb hauv kev nyab xeeb - cov cuab yeej rhiab heev.

Common electromechanical relay tsis ua hauj lwm

Cov neeg sib cuag tau ploj mus

Cov kab mob ua oxidized

Hu rau weld kaw

Coil hlawv tawm

Caij nplooj ntoos hlav tsis muaj zog

Armature yuav daig

Tiv tauj kuj nce

Common solid state relay tsis ua hauj lwm

Semiconductor tsis ua haujlwm luv luv -circuit

Semiconductor tsis qhib -circuit

Cov zis overheats

Isolation Circuit Court degrades

Surge puas ua rau cov zis

Cov dej ntws tam sim no nce

Lub kaw lus yuav tsum tsis txhob xav tias ob qho tib si relay yuav ua tsis tau zoo. Qhov twg tsis ua haujlwm tuaj yeem tsim kev phom sij, siv kev tiv thaiv ntxiv, kev kuaj mob lossis kev hloov pauv tsis tu ncua.

14. Tus nqi

Electromechanical relays feem ntau tsis tshua kim nyob rau theem ntawm cov khoom siv, tshwj xeeb tshaj yog rau cov ntawv siv tsawg- zaus hloov.

Txawm li cas los xij, tus nqi qis tshaj yuav tsis tas yuav tsim tus nqi qis tshaj plaws hauv lub neej.

Ib qho SSR tuaj yeem txo cov nqi tu lub sijhawm ntev - thaum daim ntawv thov cuam tshuam nrog ntau lab ntawm kev hloov mus. Ib qho EMR yuav nyob twj ywm ntau dua thaum hloov pauv tsuas yog ob peb zaug hauv ib teev lossis ib hnub.

Kev sib piv tus nqi tag nrho yuav tsum xav txog:

Relay tus nqi yuav khoom

Kub dab dej nqi

Cov khoom tiv thaiv

Qhov cua nkag

Xav hloov zaus

Tshuab downtime

Kev saib xyuas kev ua haujlwm

Zog poob

Qhov chaw nruab

Thaum twg Koj Yuav Tsum Xaiv Cov Hluav Taws Xob Hluav Taws Xob Relay?

Ib qho electromechanical relay feem ntau yog qhov kev xaiv zoo dua thaum:

Lub load hloov infrequently.

Tsawg tawm - lub xeev xau yog qhov tseem ceeb.

Tsawg ntawm - lub xeev voltage poob yog yuav tsum tau.

Tib qhov kev sib cuag yuav tsum hloov AC lossis DC.

Yuav tsum muaj ntau tus ncej lossis hloov chaw sib cuag.

Tus nqi pib cov khoom tseem ceeb.

Lub load muaj lub siab inrush tam sim no.

Qhov sib txawv ntawm lub cev yog xav tau.

Hloov ceev tsis yog qhov tseem ceeb.

Kev ua haujlwm mloog tau txais tau.

Cov ntawv thov ib txwm muaj xws li:

Industrial tswj vaj huam sib luag

Automotive hluav taws xob systems

Cov khoom siv hauv tsev

Pumps thiab kiv cua

Kev tswj teeb pom kev zoo

Kev ruaj ntseg interlocks

General tshuab

Tswj kev faib hluav taws xob

Thaum twg Koj Yuav Tsum Xaiv Lub Xeev Relay?

Ib lub xeev ruaj khov relay feem ntau yog qhov kev xaiv zoo dua thaum:

Lub load yuav tsum hloov tsis tu ncua.

Yuav tsum ua haujlwm ntsiag to.

Kev hloov ceev ceev yog qhov tseem ceeb.

Mechanical contact bounce yog tsim nyog.

Yuav tsum tau caij tsheb kauj vab ntev.

Cov cuab yeej ua haujlwm hauv kev vibration- ib puag ncig yooj yim.

Yuav tsum tau tswj lub rhaub kom zoo.

Kev saib xyuas yog txwv.

Cov ntawv thov ib txwm muaj xws li:

Muaj cua sov

Qhov cub

Cov khoom ntim khoom

Semiconductor tshuab

Kub tswj systems

Cov cuab yeej kuaj

Automated ntau lawm systems

Siab - tswj cov txheej txheem voj voog

Yuav Ua Li Cas Xaiv Ntawm EMR thiab SSR

Ua ntej xaiv qhov kawg, sau cov ntaub ntawv hauv qab no:

1. Tswj- cov ntaub ntawv sab

Muaj tswj voltage

AC lossis DC tswj teeb liab

Tswj lub peev xwm tam sim no

PLC tso zis hom

2. Load- sab ntaub ntawv

Load voltage

AC lossis DC load

Kev khiav hauj lwm tam sim no

Pib los yog inrush tam sim no

Resistive, inductive lossis capacitive load

Yuav tsum tau hloov zaus

3. Cov ntaub ntawv ib puag ncig

Ambient kub

Qhov kub thiab txias

Qhov cua

Kev vibration

Plua plav

Cov av noo

Installation qhov siab

4. Cov kev cai ua haujlwm

Yuav tsum tau kev pab lub neej

Txais kev hloov suab nrov

Maximum leakage tam sim no

Yuav tsum tau hloov ceev

Tus naj npawb ntawm tus ncej

Nquag qhib lossis ib txwm raug kaw

Kev nyab xeeb thiab kev cais tawm

5. Cov kev xav tau ntawm kev teeb tsa

PCB mounting

Qhov (socket) mounting

DIN rail mounting

Vaj huam sib luag mounting

Thaum tshav kub kub dab dej muaj

Muaj qhov chaw nruab

Puas tuaj yeem hloov hluav taws xob hloov hluav taws xob ncaj qha nrog SSR?

Tsis tas li.

Txawm hais tias qhov kev tswj hwm qhov hluav taws xob thiab cov khoom thauj tam sim no tshwm sim tau zoo, SSR coj txawv ntawm qhov hluav taws xob relay.

Ua ntej hloov EMR nrog SSR, kos:

Seb lub load yog AC lossis DC

Tawm- lub xeev xau tam sim no

Yam tsawg kawg nkaus load tam sim no

Ntawm - lub xeev qhov hluav taws xob poob

Thaum tshav kub kub dissipation

Inrush tam sim no

Tso zis polarity

Yuav tsum tau ib txwm kaw ua haujlwm

Luv- tiv thaiv Circuit Court

Kev cai cais kev nyab xeeb

Kev hloov pauv ncaj qha yam tsis tau tshuaj xyuas cov xwm txheej no tuaj yeem ua rau overheating, tsis tiav load kaw lossis ua tsis tiav ntxov.

Kev txiav txim zaum kawg

Tsis muaj tus yeej universal hauv electromechanical relay vs solid state relay piv.

Electromechanical relay muaj kev sib cuag ntawm lub cev, tsis tshua muaj dej, tsis tshua muaj siab ntawm -lub xeev tsis kam, hloov pauv kev sib cuag thiab tus nqi zoo rau kev siv dav dav.

Lub cev muaj zog relay muaj kev ua haujlwm ntsiag to, hloov pauv sai, tsis muaj kev sib cuag ntawm cov neeg kho tshuab thaws thiab ua tau zoo hauv kev siv siab - voj voog.

Txoj kev xaiv yog nyob ntawm qhov tseeb load thiab kev ua haujlwm.

Xaiv ib qho electromechanical relay thaum koj xav tau:

Tsawg leakage tam sim no

Tsawg conduction poob

Kev sib cuag ntau yam

Zoo dua luv- lub sij hawm surge kam rau ua

Tus nqi pib qis dua

Xaiv lub xeev ruaj khov relay thaum koj xav tau:

Hloov tsis tu ncua

Ua haujlwm ntsiag to

Teb sai dua

Tsis muaj mechanical contact hnav

Ruaj khov rov qab tswj tau

Qhov tseem ceeb tshaj plaws, tsis txhob xaiv lub relay los ntawm voltage thiab tam sim no ib leeg. Hloov zaus, inrush tam sim no, hom load, thermal tsim, to tam sim no thiab yuav tsum tau ua tsis ua hauj lwm tus cwj pwm tseem ceeb sib npaug.

Cov lus nug nquag

Puas yog lub xeev muaj zog relay zoo dua li electromechanical relay?

Tsis yog hauv txhua daim ntawv thov. SSRs feem ntau zoo dua rau kev ceev, ntsiag to thiab nquag hloov. Electromechanical relays feem ntau zoo dua thaum tsis tshua muaj dej, tsis muaj conduction poob, ntau yam kev sib cuag lossis tus nqi qis dua yog qhov tseem ceeb dua.

Qhov twg relay kav ntev dua?

Ib qho kev xaiv raug xaiv hauv lub xeev relay tuaj yeem muab lub neej ntev dua vim nws tsis muaj kev sib cuag. Txawm li cas los xij, overheating lossis hluav taws xob surges tuaj yeem ua rau SSR ua tsis tiav ntxov.

Puas yog lub xeev muaj zog relay xav tau lub dab dej kub?

Ntau SSRs xav tau lub dab dej kub thaum hloov cov dej nruab nrab lossis siab. Qhov kev txiav txim siab yuav tsum yog raws li ntawm - lub xeev qhov hluav taws xob poob, thauj khoom tam sim no, qhov kub thiab txias thiab cov chaw tsim khoom cov ntaub ntawv thermal derating.

Puas yog electromechanical relay siv zog ntau dua?

Ib qho electromechanical relay yuav tsum muaj lub zog txuas txuas ntxiv thaum lub zog tshwj tsis yog nws yog latching relay. Ib qho SSR ib txwm yuav tsum muaj lub zog hluav taws xob tsawg, tab sis nws cov khoom siv hluav taws xob tuaj yeem ua kom sov ntau dua thaum nqa cov khoom thauj tam sim no.

Puas tuaj yeem hloov lub xeev relay ob qho tib si AC thiab DC?

Feem ntau tsis nrog tib cov zis. AC- tso zis SSRs thiab DC- tso zis SSRs siv cov khoom siv hluav taws xob sib txawv. Hom tso zis yuav tsum phim lub load.

Vim li cas SSR tseem qhia tau qhov hluav taws xob thaum nws tawm?

Kev tawm me me- lub xeev cov dej xau tuaj yeem dhau los ntawm SSR thiab cov cuab yeej ntsuas kev sib txuas. Lub siab -impedance multimeter tuaj yeem tso tawm qhov hluav taws xob txawm tias SSR tsis ua haujlwm rau lub zog.

Ib qho SSR puas tuaj yeem hloov lub tsheb relay?

Nws yog ua tau nyob rau hauv qee daim ntawv thov, tab sis nws tsis yog ib txwm hloov ncaj qha. Automotive systems koom nrog DC loads, high inrush currents, voltage transients, kub variation thiab vibration. SSR yuav tsum tau tsim tshwj xeeb thiab tiv thaiv rau lub tsheb ib puag ncig.

Qhov twg relay zoo dua rau kev tswj lub cev muaj zog?

Nws nyob ntawm lub cev muaj zog tam sim no, pib tam sim no thiab hloov zaus. Electromechanical fais fab relays los yog contactors yog ib txwm muaj rau motors vim hais tias lawv muaj peev xwm tuav tau siab inrush tam sim no. Kev ntsuas cov khoom hauv lub xeev tau zoo tuaj yeem siv tau ntau zaus - hloov daim ntawv thov uas tsim nyog thermal thiab surge tiv thaiv.

Lub relay twg yog qhov zoo dua rau kev tswj cov cua sov?

Cov khoom siv hauv lub xeev feem ntau nyiam rau kev tswj lub tshuab hluav taws xob vim tias lawv muaj kev hloov pauv tsis tu ncua thiab tuaj yeem ua haujlwm zoo nrog cov tswj kub. Kev kho cua sov kom raug thiab tiv thaiv overcurrent yog qhov tseem ceeb.

Dab tsi yog qhov tsis zoo ntawm lub xeev relay?

Nws qhov tsis zoo tseem ceeb suav nrog tawm - lub xeev cov dej xau tam sim no, ntawm - lub xeev qhov hluav taws xob poob, kev tsim hluav taws xob, rhiab heev rau hluav taws xob surges thiab qhov xav tau rau lub dab dej kub.

Xav tau kev pab xaiv txoj cai Relay?

QIANJI muab cov khoom siv hluav taws xob hluav taws xob, hluav taws xob relays, PCB relays, automotive relays, lub sij hawm relays, khoom hauv xeev relays thiab relay sockets rau kev lag luam thiab hluav taws xob siv.

Xa peb cov ntaub ntawv hauv qab no:

Tswj voltage

Load voltage

AC lossis DC load

Ua haujlwm tam sim no

Pib tam sim no

Hloov zaus

Kev thov ib puag ncig

Peb pab neeg tuaj yeem pab koj sib piv cov kev xaiv relay tsim nyog thiab txheeb xyuas cov khoom lag luam rau koj daim ntawv thov.