I-Thermal relay isetyenziswa ikakhulu ukulayisha ngaphezulu ukukhusela i-asynchronous motor.Umgaqo wayo wokusebenza kukuba emva kokuba i-overload yangoku idlula kwinto eshushu, icwecwe lesinyithi eliphindwe kabini ligobile ukutyhala indlela yokusebenza ukuqhuba isenzo sokunxibelelana, ukuze kuqhawuke uqhagamshelo lwesekethe yolawulo lweemoto kwaye uqaphele ukuvalwa kwemoto, kwaye udlale indima. Ukukhuselwa komthwalo ogqithisiweyo.Kunikwe ixesha elide lokufuduswa kobushushu obufunekayo ngexesha lokugoba kwe-thermal ye-bimmetal plate, i-thermal relay ayinakusetyenziswa njengokhuseleko lwesiphaluka esifutshane, kodwa kuphela njengokhuseleko lomthwalo ogqithisiweyo wokukhusela ukugqithiswa kwe-thermal relay.
Xa i-relay ye-thermal isetyenziselwa ukulayisha ngaphezulu ukukhusela i-motor, ukudibanisa i-thermal element kunye ne-stator winding ye-motor kuchungechunge, uqhagamshelwano oluqhelekileyo oluvaliweyo lwe-thermal relay luqhagamshelwe kwisiphaluka solawulo lwe-coil ye-electromagnetic ye-contactor ye-AC, kunye i-knob yokulungelelanisa yangoku ihlengahlengiswa ukwenza i-herringbone lever ibe ngumgama ofanelekileyo ukusuka kwintonga yokutyhala.Xa i-motor isebenza ngokuqhelekileyo, i-current ngokusebenzisa i-thermal element yi-current rated current ye-motor.Xa i-thermal element ifudumala, ishidi lesinyithi eliphindwe kabini ligobile emva kokufudumeza, ukuze intonga yokutyhala idibanise nje ne-herringbone lever, kodwa ayikwazi ukutyhala intonga ye-herringbone. injini isebenza ngokuqhelekileyo.
Ukuba imeko yomthwalo we-motor, i-current in the winding iyanda, ngokusebenzisa i-current in thermal relay element i-bimetallic yobushushu iphakama phezulu, iqondo lokugoba, ukukhuthaza i-lever ye-herringbone, i-herringbone lever push ivame ukuvala uqhagamshelwano, yenza uqhagamshelwano luqhawulwe kwaye luqhawule i-ac. isekethe yekhoyili ye-contactor, yenza i-contactor ikhululwe, inqumle amandla emoto, i-motor stop kwaye ikhuselwe.
Ezinye iindawo ze-thermal relay yilezi zilandelayo: ingalo ye-herringbone lever yasekhohlo yenziwe nge-bimetallic, xa ubushushu be-ambient butshintsha, isiphaluka esiphambili siya kuvelisa ukugoba okuthile, emva koko ingalo yasekhohlo kwicala elifanayo, ukuze umgama phakathi kwe-herringbone lever. kwaye intonga yokutyhala ihlala ingatshintshi, qinisekisa ukuchaneka kwesenzo se-thermal relay.Esi senzo sibizwa ngokuba yintshukumo yembuyekezo yobushushu.
I-Screw 8 sisikrufu sokulungelelanisa ngokusetwa ngokutsha koqhagamshelwano oluqhelekileyo.Xa indawo ye-screw ingasekhohlo, emva kokuba i-motor overload, uqhagamshelwano oluhlala luvaliwe luyanqanyulwa, emva kokuba i-motor iyeka, i-hot relay bimetallic sheet cooling reset. abafowunelwa abaqhelekileyo abavaliweyo baya kusetha ngokuzenzekelayo phantsi kwesenzo se-spring.Kweli nqanaba, i-relay ye-thermal isetwa ngokuzenzekelayo. i-relay inqanyuliwe.Abafowunelwa abahambahambayo baya kufikelela kwindawo entsha yebhalansi ekunene.Uqhagamshelwano oluhambayo alukwazi ukusetwa kwakhona emva kokuba i-motor icinyiwe.Iqhosha lokuseta ngokutsha kufuneka licinezelwe ngaphambi kokuba umfowunelwa usetwe kwakhona.Ngeli nqanaba, i-relay ye-thermal iyacinywa. Kwimeko yokusetha kwakhona ngesandla.Ukuba i-motor overload iphosakele, ukwenzela ukuba ugweme ukuqala kwakhona i-motor kwakhona, i-relay ye-thermal kufuneka ithathe imowudi yokuseta ngokutsha. Screw isikrufu sohlengahlengiso lokuseta kwakhona ngasekunene ukuya kwindawo eyiyo.
Ixesha lokuposa: Mar-28-2022
