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 iqhosha lohlengahlengiso lwangoku lihlengahlengiswa ukwenza i-herringbone lever ibe ngumgama ofanelekileyo ukusuka kwintonga yokutyhala. imoto. 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 ye-bimetallic iqondo lobushushu liyenyuka 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 kuphinda babuyisele ngokuzenzekelayo phantsi kwesenzo se-spring.Kweli nqanaba, i-relay ye-thermal isetwa ngokutsha ngokuzenzekelayo. ukuba i-motor igcwele kakhulu, uqhagamshelwano oluqhelekileyo oluvaliweyo lwe-relay ye-thermal lunqanyuliwe.Abafowunelwa abahambahambayo baya kufikelela kwindawo entsha yebhalansi ngakwesokudla.Uqhagamshelwano oluhambayo alukwazi ukusetwa kwakhona emva kokuba i-motor ivaliwe.Iqhosha lokusetha kwakhona kufuneka licinezelwe phambi Kweli nqanaba, i-relay ye-thermal ikwimo yokusetha kwakhona ngesandla. Ukuba i-motor overload iphosakele, ukuze ugweme ukuqala kwakhona injini kwakhona, i-relay ye-thermal kufuneka ithathe imowudi yokuseta ngokutsha ngesandla. Ukunyenyisa i-thermal relay ukusuka kwimowudi yokusetha ngokutsha ukuya kwimowudi yokusetha kwakhona ngokuzenzekelayo, vele ujike isikrufu sohlengahlengiso lokuseta kwakhona ngokwewotshi kwindawo eyiyo.
Ixesha lokuposa: Mar-28-2022
