Kudzivirirwa kwepamusoro-soro kunoita kuti magetsi ako ave neremangwana-uchapupu
Dziviriro dzinodzokororwa dzakakosha kune vashandisi venetiweki, vatengesi vemagetsi, uye mabhizinesi emaindasitiri muchikamu chega chega. Kweanopfuura makore zana, Nokia yanga ichipa yakabudirira uye inogara ichivandudza SIPROTEC uye Reyrolle kuchengetedza relay uye matekinoroji. Izvi zvinoreva kugutsikana kwenguva refu kwemushandisi nezvigadzirwa nemhinduro, nemasevhisi, uye nekudyidzana nemutambi wechokwadi wepasirese. Siemens ndiye akakodzera shamwari yekukunda matambudziko eramangwana redhijitari.
Izvi zvinotevera chigadzirwa chemhando uye kuiswa kwayo:
3TH30220XC0 3TH30220XC1 3TH30220XC2 3TH30220XD0 3TH30220XD2 3TH30220XE0 3TH30220XF0 3TH30220XG0, 3TH30220XG1 3TH30220XG2 3TH30220XH0 3TH30220XJ1 3TH30220XJ2 3TH30220XK1 3TH30220XK2, 3TH30220XL0 3TH30220XL1 3TH30220XL2 3TH30220XM0 3TH30220XM1 3TH30220XM2 3TH30220XN1 3TH30220XN2, 3TH30220XP0 3TH30220XP1 3TH30220XP2 3TH30220XQ0 3TH30220XQ2 3TH30220XR0 3TH30220XR1 3TH30220XR2
Dziviriro relay zvigadzirwa uye software - Yakachengeteka uye inoshanda gidhi kushanda:
1. SIPROTEC 5
SIPROTEC 5 chikamu chechizvarwa chitsva cheasingaenzaniswi modular, anochinjika, uye akangwara edhijitari munda zvishandiso. Iine modularly yakagadzirwa hardware uye software uye yakakwirira-inoshanda DIGSI 5 engineering chishandiso, iyo SIPROTEC 5 chigadzirwa mhuri yezvigadzirwa zvemumunda yakanakira kuchengetedza, kutonga, kutarisa, uye kuyera mashandisirwo mumasisitimu emagetsi emagetsi. SIPROTEC 5 inopa yakafara chigadzirwa renji ine modular zvinhu zveese application uye zvinodiwa.
2. Reyrolle 5
Kuchengetedza magridi nechivimbo
Kudzivirirwa, kutonga, kutarisa uye kuyerwa kwemagetsi edu network chinhu chakakosha mukugadzirisa zvinhu zvedu zvemagetsi, kuwedzera kuvimbika, kusimba uye kuchengetedzeka kwevashandi vanoshanda. Chinangwa chedu ndechekupa midziyo yekudzivirira iyo inopa mhinduro dzinochinjika uye nyore kusanganisa mumusika wemagetsi uyo uri kuramba uchiiswa uye kudhijitari. Neiyo Reyrolle 5 nyowani takateerera kune shanduko yezvinodiwa nevatengi vedu. Kuvaka pane yedu yemakore zana nhoroondo yekugadzira kuchengetedza relay isu takashandisa akapupurirwa algorithms kuve nechokwadi chekuita kwakavimbika. Iine IEC 100 Ethernet kutaurirana seyakajairwa uye inonatsiridza cyber chengetedzo Reyrolle 61850 inogonesa substation digitalization.Mushandisi ane hushamwari, intuitive dhizaini uye mashoma ekurongeka akasiyana anopa chivimbo kumushandisi uye izvi zvinotambanudzira kune Reydisp programming software zvishandiso.
3. Reyrolle
Iyo yakazara huwandu hwezvigadzirwa zveReyrolle inopa huwandu hwedziviriro inodiwa yemisika yekugovera uye maindasitiri ekushandisa - kubva pakudzivirira kwepamusoro kuburikidza netransformer kuchengetedza uye kutonga kwemagetsi kune yakazara yakazara yeanobatsira uye yerwendo relay. Iyo portfolio inosanganisira zvinhu zvakawanda zvine mukurumbira zvakadai se "Argus, "Duobias", "Solkor", "Rho, etc. Kuburikidza nezvizvarwa zvakatevedzana, zvigadzirwa zvenhamba zveReyrolle zvakagadziridzwa kuti zviwedzere kukosha kune vashandisi vehurongwa.
4. SIPROTEC Compact
Yakanyatsokodzera kuchengetedzwa mumasisitimu ekugovera uye indasitiri, ine nzvimbo shoma inodiwa. SIPROTEC Compact zvishandiso zvinopa huwandu hwakakwana hwemabasa mune zvinoshamisa compact uye nzvimbo inochengetedza imba. Ingave yakakosha kana seyekuchengetedza kuchengetedza, imwe SIPROTEC Compact mudziyo inopa kuchengetedzwa kwese kunokanganisa kukanganisa. Uye inogona kuita zvakatowanda - inotsigira kutonga, otomatiki, uye yekutarisa mabasa mune substation.
5. SIPROTEC 4
SIPROTEC 4 inotungamira nzira mukubatanidza kudzivirira, kutonga, kuyerwa, uye otomatiki mabasa mumudziyo mumwe. Iyo homogenous system chikuva, yakasarudzika DIGSI 4 engineering chirongwa, uye ruzivo rwakakura rweanopfuura miriyoni akabudirira kushanda zvishandiso mumunda pasi rese - nekuda kweaya mabhenefiti akasiyana, SIPROTEC 4 inonakidzwa nekuzivikanwa kwepamusoro pakati pevashandisi pasi rese. SIPROTEC 4 ndiyo indasitiri chiyero chedhijitari yekudzivirira tekinoroji nhasi munzvimbo dzese dzekushandisa.
6. Zvishandiso zveinjiniya zvekudzivirira
Kubva Kuronga kuenda Kuinjiniya kusvika Kuyedzo
Zvishandiso zveinjiniya zvinokubatsira mukufambiswa kwebasa kubva pakuronga kusvika pakushanda kwemasisitimu ako neSIPROTEC uye Reyrolle zvishandiso. NeDIGSI 5, une hutongi hwakazara pamusoro peinjiniya. Iyo inoshanda chiyero chechishandiso inovhara mabasa ese - kubva pakumisikidzwa kwechishandiso uye kusetwa kwechishandiso kuenda kukutumira uye kuongororwa kwedata rekukanganisa neSIGRA. Iyo SIPROTEC DigitalTwin ndiyo chaiyo nguva yedhijitari replica yemuviri SIPROTEC 5 mudziyo unosanganisira nzvimbo, mashandiro uye algorithms uye inogonesa kuyedzwa kweSIPROTEC 5 michina yekudzivirira mugore. Iyo inoshanda uye parameterization chirongwa Reydisp inoshandiswa kugadzirisa iyo Reyrolle renji rekudzivirira relay. Iyo IEC 61850 system configurator ndiyo inogadzira-yakasununguka mhinduro yeinjiniya inopindirana yeIEC 61850 zvigadzirwa uye masisitimu. Inotsigira zvese zvishandiso zvine IEC 61850.
A relay mudziyo wemagetsi. Chinhu chemagetsi chinokonzera shanduko yakafanotemerwa muhuwandu hunodzorwa mumagetsi ekubuda dunhu kana huwandu hwekupinda (excitation quantity) huchichinja kune zvinodiwa. Iyo ine hukama hwekudyidzana pakati peiyo control system (aka input loop) uye inodzorwa system (aka inobuda loop). Inowanzo shandiswa mune otomatiki kudzora maseketi, ichokwadi "otomatiki switch" inoshandisa diki ikozvino kudzora kushanda kwehombe yazvino. Naizvozvo, inoita basa rekugadzirisa otomatiki, kuchengetedzwa kwekuchengetedza uye kutendeuka redunhu mudunhu.
Iyo relay chinhu chinoshandura otomatiki chine basa rekuzviparadzanisa nevamwe. Inoshandiswa zvakanyanya mukudzora kure, telemetry, kutaurirana, otomatiki kudzora, mechatronics uye magetsi emagetsi midziyo. Icho chimwe chezvinhu zvakakosha zvekutonga.
Iyo relay inowanzo ine induction meshini (chikamu chekupinza) chinogona kuratidza mamwe machinjiro ekuisa (seazvino, voltage, simba, impedance, frequency, tembiricha, kudzvanywa, kumhanya, mwenje, nezvimwewo); inogona kuona "kupfuura" uye "kubatanidza" kune inodzorwa dunhu. The actuator (output part) inodzorwa ne "break"; pakati pechikamu chekupinza uye chikamu chinobuda cheiyo relay, pane yepakati meshini (yekutyaira chikamu) yekubatanidza uye kuparadzanisa huwandu hwekupinza, kushanda kwekugadzirisa uye kutyaira iyo inobuda chikamu.
Sechinhu chekudzora, muchidimbu, relay ine anotevera mabasa:
1) Kuwedzera huwandu hwekutonga: semuenzaniso, kana chiratidzo chekudzora cheyakawanda-yekutaurirana relay inosvika kune imwe kukosha, inogona panguva imwe chete kushandura, kutyora, uye kubatanidza akawanda maseketi zvichienderana nemhando dzakasiyana dzeboka rekuonana.
2) Amplification: Semuyenzaniso, marelay anonzwa, epakati relay, nezvimwewo, ane hushoma hutongi hwekutonga, anogona kudzora makuru emagetsi maseketi.
3) Chiratidzo chakazara: Semuyenzaniso, kana masaini akawanda ekudzora achiiswa kune akawanda-anotenderera relay mune yakatemwa fomu, mushure mekuenzanisa synthesis, yakafanotemerwa kudzora maitiro inowanikwa.
4) Otomatiki, kudzora kure uye kutarisa: semuenzaniso, iyo relay pane otomatiki mudziyo pamwe nezvimwe midziyo yemagetsi inogona kuumba chirongwa chekudzora dunhu kuti uwane otomatiki kushanda.
Kurongwa:
1. Yakakamurwa zvinoenderana nemusimboti wekushanda kana hunhu hweiyo relay:
1) Electromagnetic relay: relay yemagetsi inoshanda nekushandisa simba rekusveta rinogadzirwa neazvino mudunhu rekuisa pakati peiyo electromagnet musimboti uye armature.
2) Solid relay: inoreva rudzi rwekudzoreredza umo kupinza uye kubuda kunoparadzaniswa nemagetsi emagetsi anoita mabasa azvo pasina michina inofamba.
3) Temperature relay: relay inoshanda kana tembiricha yekunze yasvika pane yakapihwa kukosha.
4) Reed relay: relay yakavharirwa muchubhu uye ine kaviri chiito chetsanga yemagetsi uye armature magnetic circuit kuvhura, kuvhara, kana kushandura masekete.
5) Nguva yekudzoka: kana chiratidzo chekuisa chawedzerwa kana kubviswa, chikamu chinobuda chinoda kunonoka kana nguva shoma yekuvhara kana kuvhura iyo inodzorwa mutsara relay kusvika panguva yakatarwa.
6) Yakakwira-frequency relay: Iyo relay ine kushoma kurasikirwa kwekuchinja yakakwira-frequency uye RF mitsetse.
7) Polarized relay: relay ine chiitiko chakabatanidzwa chepolarized magnetic field uye kutonga ikozvino kuburikidza nemagnetic field inogadzirwa nekoiri yekudzora. Maitiro ekuita kweiyo relay zvinoenderana negwara rezvino rinoyerera mukudzora coil.
8) Mamwe marudzi ekudzoreredza: senge optical relays, acoustic relays, thermal relays, chiridzwa relay, Hall mhedzisiro relay, musiyano relay, nezvimwe.
2. Kupatsanura zvinoenderana nekunze zviyero zverelay:
1) Miniature relays: relays ine yakarebesa mativi dimension isingapfuuri 10 mm.
2) Ultra-compact miniature relays: relays ine kureba kwedivi dimension yakakura kupfuura 10 mm, asi isingapfuuri 25 mm.
3) Miniature relays: relays ine kureba kwedivi dimension yakakura kupfuura 25 mm, asi isingapfuuri 50 mm.
3. Zvinoenderana nemutoro weiyo relay:
1) Micropower relay: kana yakavhurika yedunhu voltage yekubata iri DC 28V, iyo (resistive) relay ndeye 0.1A uye 0.2A.
2) Simba relay isina simba: kana iyo yakavhurika yedunhu voltage iri DC 28V, (resistive) iri 0.A, 1A relay.
3) Epakati simba relay: Kana yakavhurika yedunhu voltage yekubata iri 28V DC, iyo (resistive) relay ndeye 2A uye 5A.
4) High-simba relay: Kana iyo yakavhurika-yedunhu voltage yekubata iri 28V DC, (resistive) iri relay ye10A, 15A, 20A, 25A, 40A ...
4. Zvinoenderana nemaitiro ekudzivirira eiyo relay:
1) Yakavharwa relays: Welding kana dzimwe nzira dzinoshandiswa kusimbisa zvinobatika uye coils muvhavha, yakaparadzaniswa kubva kune yakatenderedza svikiro, uye ine yakaderera leakage rate.
2) Yakavharirwa relay: relay inodzivirira vanobatika uye coils nekuisa chisimbiso (kusunungura) nechivharo.
3) Vhura relays: relays inodzivirira kubva kumagetsi kuvhunduka uye makoiri pasina chivharo chekudzivirira.
Mhedzisiro:
Iyo relay chinhu chinoshandura otomatiki chine basa rekuzviparadzanisa nevamwe. Inoshandiswa zvakanyanya mukudzora kure, telemetry, kutaurirana, otomatiki kudzora, mechatronics uye magetsi emagetsi midziyo. Icho chimwe chezvinhu zvakakosha zvekutonga.
Iyo relay inowanzo ine induction meshini (chikamu chekupinza) chinogona kuratidza mamwe machinjiro ekuisa (seazvino, voltage, simba, impedance, frequency, tembiricha, kudzvanywa, kumhanya, mwenje, nezvimwewo); inogona kuona "kupfuura" uye "kubatanidza" kune inodzorwa dunhu. The actuator (output part) inodzorwa ne "break"; pakati pechikamu chekupinza uye chikamu chinobuda cheiyo relay, pane yepakati meshini (yekutyaira chikamu) yekubatanidza uye kuparadzanisa huwandu hwekupinza, kushanda kwekugadzirisa uye kutyaira iyo inobuda chikamu.
Sechinhu chekudzora, muchidimbu, relay ine anotevera mabasa:
1) Kuwedzera huwandu hwekutonga: semuenzaniso, kana chiratidzo chekudzora cheyakawanda-yekutaurirana relay inosvika kune imwe kukosha, inogona panguva imwe chete kushandura, kutyora, uye kubatanidza akawanda maseketi zvichienderana nemhando dzakasiyana dzeboka rekuonana.
2) Amplification: Semuyenzaniso, marelay anonzwa, epakati relay, nezvimwewo, ane hushoma hutongi hwekutonga, anogona kudzora makuru emagetsi maseketi.
3) Chiratidzo chakazara: Semuyenzaniso, kana masaini akawanda ekudzora achiiswa kune akawanda-anotenderera relay mune yakatemwa fomu, mushure mekuenzanisa synthesis, yakafanotemerwa kudzora maitiro inowanikwa.
4) Otomatiki, kudzora kure uye kutarisa: semuenzaniso, iyo relay pane otomatiki mudziyo pamwe nezvimwe midziyo yemagetsi inogona kuumba chirongwa chekudzora dunhu kuti uwane otomatiki kushanda.
Iyo tekinoroji ma parameter ezvakanyanya zvigadzirwa zveiyo relay:
① Yakatemerwa kushanda voltage: inoreva voltage inodiwa necoil kana relay iri kushanda zvakajairika. Zvichienderana nerudzi rwerelay, inogona kunge iri AC voltage kana DC voltage.
② DC kuramba: inoreva kupikisa kweDC kweiyo coil mune relay, iyo inogona kuyerwa nemultimeter.
③ Dhonza-mukati ikozvino: inoreva zvishoma ikozvino iyo relay inogona kuburitsa-mukuita chiito. Mukushandiswa kwakajairika, ikozvino yakapihwa inofanira kunge yakakura zvishoma pane yekudhonza-mukati ikozvino kuitira kuti relay ishande zvakatsiga. Kana iri voltage yekushanda yakashandiswa kune coil, kazhinji haifanirwe kudarika 1.5 nguva yakatarwa yekushanda voltage, zvikasadaro inoburitsa yakakura ikozvino uye kupisa coil.
④Kuburitsa ikozvino: kunoreva iyo yakanyanya ikozvino yekuburitsa chiitiko cheiyo relay. Kana iyo ikozvino mukudhonza-in mamiriro eiyo relay yakaderedzwa kusvika kune imwe nhanho, iyo relay ichadzokera kune isina unenergized yekusunungurwa mamiriro, uye ikozvino panguva ino idiki zvakanyanya pane yekudhonza-mukati ikozvino.
⑤ Bata switching voltage uye ikozvino: tarisa kune voltage uye ikozvino inobvumidzwa neiyo relay. Iyo inosarudza saizi yemagetsi uye ikozvino iyo relay inogona kudzora. Iyo haigone kudarika kukosha uku kana ichishandiswa, kana zvisina kudaro inokuvadza nyore nyore kushamwaridzana kweiyo relay.
Iyo relay inonzi zvakare "magnetic attraction" nevamwe vekare vemagetsi. Inoshandisa chiito che electromagnet kudzora kukwezva kana kubviswa kweimwe dunhu. Mukati meiyo electromagnetic relay, mune coil, iron core, chitubu, yekubata Point uye zvimwe zvakakosha zvekunyora. Iyo yekubata kazhinji ine yakavhurika yekuonana uye inowanzovharika yekubata. Ose ari maviri kazhinji ane akajairika terminal. Kana iyo coil isina simba, iyo inowanzovharwa yekubata uye yakajairika terminal ipfupi-inotenderedzwa, uye iyo inowanzo kuvhurika yekubata uye yakajairika terminal yakavhurika. Mushure mekunge coil yasimbiswa, iyo inowanzo kuvhurika yekubata uye yakajairika terminal ipfupi-inotenderedzwa, uye iyo inowanzovharika yekubata uye yakajairika terminal idunhu rakavhurika, iro rinongodzoserwa kumashure, kuitira kuti voltage (ikozvino) yekoiri igone kudzorwa. kudzora dunhu rekuonana munhevedzano Yakatoshanda.
Paunenge uchigadzira, sarudza iyo yakakodzera yekuonana simba uye voltage yecoil (AC neDC), kuitira kuti kutonga kwekuzviparadzanisa kwemaseketi maviri kugone kuwanikwa. Semuenzaniso, bhatani rinogona kugadzirwa kuti ribatane nevanhu ndiro 12 volts, uye 12 volt coil inosarudzwa. Izvo zvakachengeteka, kunyangwe kana munhu wacho akasangana nevoltage yecoil, haazobhadhariswi kwaari. Padivi rekuonana, unogona kudzora voltage ye220 volts kana yakakwira kutyaira zvakananga kutanga uye kumira kwemidziyo yakaita semotor kana zvimwe zvinotakura zvine macurrents akakura, anogona kuwana kudzora maitiro e "mana kana maviri dials."
Chekutanga, kupatsanurwa kweiyo relay imhando yemagetsi edunhu (senge voltage, ikozvino, nezvimwewo) kana isiri-yemagetsi huwandu (sekupisa, nguva, kudzvanywa, kumhanya, nezvimwewo) shanduko yekubatanidza kana kubvisa dunhu kuwana otomatiki kudzora uye kuchengetedzwa kwesimba remagetsi Magetsi midziyo. Iyo relay inowanzo umbwa nezvikamu zvitatu zvakakosha: sensing mechanism, yepakati meshini uye actuator. Iyo sensing mechanic inoendesa huwandu hwemagetsi anonzwa kune iyo nguva meshini, uye inoienzanisa neyakayerwa kuseta kukosha. Kana iyo yekumisikidza kukosha (yakawandisa kana kusakwana) yasvika, iyo yepakati meshini inoita kuti actuator iite, nekudaro ichibatidza kana kudzima Vhura dunhu rinodzorwa. Kune akawanda marudzi erelays, ayo anogona kukamurwa kuita control relay uye kuchengetedza relay zvinoenderana nekushandiswa; zvinoenderana nechimiro chechiratidzo chekuisa, ivo vanogona kukamurwa kuita voltage relays uye tembiricha, ikozvino relay, nguva relays, kumhanya relay, kudzvanywa kutenderera uye tembiricha relay; Iyo electromagnetic relay, inductive relay, thermal relay uye yemagetsi relay, nezvimwe .; inogona kukamurwa kuita instantly relay uye kunonoka relay zvinoenderana nenguva yekuita.
2. Nheyo yekushanda uye hunhu hweiyo relay 1-1 Iyo yekushanda musimboti uye maitiro eiyo electromagnetic relay Iyo electromagnetic relay inowanzo umbwa nesimbi core, coil, armature, uye macontacts. Chero bedzi imwe voltage ichiiswa kumigumo yese yecoil, yazvino inoyerera nepakati pecoil, nekudaro ichigadzira electromagnetic effect, uye armature inokwezva musimboti wesimbi kurwisa simba rekudhonza reanti-spring pasi pechiito che electromagnetic simba kukwezva, nekudaro kutyaira iyo ine simba yekubata kweiyo armature Iyo poindi inokwezvwa kune iyo static kubata (kazhinji yakavhurika kubata). Kana iyo coil ichinge yabviswa simba, iyo electromagnetic suction inonyangarika, uye armature inodzokera kunzvimbo yayo yepakutanga pasi pesimba rekuita rechirimo, zvichiita kuti iyo inofamba ikwekwe iyo yekutanga static kubata (kazhinji yakavharwa kubata). Izvi zvinodhonza nekuburitsa kuti zvizadzise chinangwa chekubatidza nekudzima magetsi. Iyo "kazhinji yakavhurika" uye "kazhinji yakavharwa" yerelay inogona kusiyaniswa nenzira iyi; iyo relay coil haina kupihwa simba uye iyo yakadimburwa nyika ndeye static yekubata, inodaidzwa kuti "kazhinji yakavhurika kuonana", uye iyo static yekubata munharaunda inonzi "Inowanzovharika kubata". 1-2 Nheyo yekushanda uye maitiro eiyo thermal reed relay The thermal reed relay rudzi rutsva rwekupisa kwekushisa kunoshandisa thermal magnetic materials kuona uye kudzora tembiricha. Iyo ine tembiricha-inonzwa magineti mhete, inogara iine magineti mhete, yakaoma rutsanga pombi, thermally conductive mounting sheet, epurasitiki substrate uye zvimwe zvinhu. Iyo inopisa tsanga relay haidi coil excitation, uye simba remagineti rinogadzirwa neanogara remagineti mhete inotyaira chiito chekuchinja. Kunyangwe iyo inogara inogara magineti mhete inogona kupa simba remagineti kutsanga inotarirwa nemhando yekudzora tembiricha yekushisa-inonzwa magineti mhete. 1-3 Kushanda Nheyo yeSolid State Relay (SSR) A solid state relay ichina-terminal mudziyo une materminal maviri sekubuda, uye mudziyo wekuzviparadzanisa wega unoshandiswa kuwana kugadzika kwemagetsi kwekupinza / kubuda. Solid-state relays inogona kukamurwa kuita AC mhando uye DC mhando zvichienderana nerudzi rwekuremerwa magetsi. Zvinoenderana nemhando yekuchinja, inogona kukamurwa kuita yakavhurika mhando uye inowanzovharwa mhando. Zvinoenderana nerudzi rwekuzviparadzanisa nevamwe, inogona kukamurwa kuita hybrid mhando, transformer isolation type uye photoelectric isolation type. Iyo photoelectric isolation type ndiyo yakanyanya mukuita maapplication.
1-4 Nheyo yekushanda uye maitiro ezvino relay Current relay is relay inoshandura kana kudzima dunhu maererano nehukuru hwezvino mune coil. Iyo coil yezvino relay yakabatanidzwa munhevedzano mudunhu. Kuti irege kukanganisa mamiriro ekushanda edunhu, relay yazvino inokwezva mashoma makoiri uye waya yakakora. Iyo relay inoshanda kana iyo coil ikozvino yakakwira kupfuura iyo yakatarwa kukosha inonzi overcurrent relay; Iyo iri undercurrent relay. Kana iyo overcurrent relay iri kushanda zvakajairika, ikozvino yakapfuura nekoiri yemazuva ano ndiyo yakatemerwa kukosha, saka iyo electromagnetic simba rinogadzirwa harina kukwana kukurira reaction elastic simba; iyo inowanzovharwa yekubatana inoramba yakavharwa. Kana iyo yazvino kuburikidza nekoiri ichidarika kukosha kweseti, iyo electromagnetic suction force yakakura kupfuura The reaction spring tension, iron core inokwezva armature, iyo inowanzovharika yekubata inovhurwa, iyo inowanzo kuvhurika yekuvhara yakavharwa, iyo overcurrent faindi relay inonyanya. inoshandiswa kune nguva zhinji uye inorema mitoro yekutanga nguva, sepfupi yedunhu uye yakawandisa kudzivirira kwemota kana main relay, uye undercurrent relay Inowanzo shandiswa kudzivirira demagnetization yeDC motors uye magineti chucks. 1-5 Iyo yekushanda musimboti uye maitiro eiyo thermal relay Thermal relay idunhu redziviriro rinoshandisa thermal mhedzisiro yezvino kushandura maseketi. Inoshandiswa sekudzivirira kwekuremerwa kwemamota ari mudunhu. Nheyo yekushanda kweiyo thermal relay: kana mota inotenderera yaremerwa nekuda kwekuremerwa ikozvino, kupisa kunogadzirwa nechinhu chekudziya kunokwana kukotamisa bimetallic sheet, uye ndiro inotungamira inofambiswa kurudyi kusundira tembiricha yekubhadhara pepa. kutenderedza tsvimbo yekusundira yakapoteredza axis Musoro wekubatanidza tsvimbo inoparadzanisa kushamwaridzana kunofamba kubva kune static kuonana, kuitira kuti coil coil mumotokari yemagetsi inobviswa uye inosunungurwa, uye simba rinogurwa, rinoita basa rekudzivirira. Iyo tembiricha yekubhadhara pepa rinoshandiswa kutsiva pesvedzero yeambient tembiricha pane yekushanda kwayo kweiyo thermal relay; inogadzirwa nemhando imwechete yebimetallic sheet seyakanyanya bimetallic sheet.
