Thermal Relay: Nkag Siab Txog Nws Lub Luag Haujlwm thiab Qhov Tseem Ceeb
Cov thermal relays yog cov khoom tseem ceeb hauv cov tshuab hluav taws xob thiab muaj lub luag haujlwm tseem ceeb ntawm kev tiv thaiv cov khoom siv thiab tiv thaiv cov kev phom sij uas yuav tshwm sim los ntawm kev kub dhau. Lub cuab yeej ua haujlwm raws li lub hauv paus ntsiab lus ntawm kev nthuav dav thermal, qhov twg qhov kub nce ntxiv ua rau muaj kev hloov pauv ntawm cov khoom siv lub cev ntawm cov khoom siv hauv relay. Qhov kev hloov pauv no ua rau relay ua haujlwm thiab cuam tshuam lub voj voog, yog li tiv thaiv cov khoom siv txuas nrog.
Lub hom phiaj tseem ceeb ntawm lub thermal relay yog los saib xyuas qhov kub ntawm cov khoom siv hluav taws xob thiab txiav tawm lub zog thaum qhov kub tshaj qhov ntsuas tau teem tseg. Qhov no yog qhov tseem ceeb los tiv thaiv kev puas tsuaj rau cov khoom siv thiab xyuas kom muaj kev nyab xeeb ntawm tag nrho lub cev muaj zog. Thermal relays feem ntau siv rau hauv ntau yam kev siv suav nrog cov motors, transformers, thiab lwm yam khoom siv hluav taws xob uas xav tau kev tswj qhov kub.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm cov thermal relays yog tias lawv muab kev tiv thaiv overheating txhim khu kev qha yam tsis tas yuav siv cov hluav taws xob lossis cov sensors nyuaj. Qhov no ua rau lawv yog cov kev daws teeb meem pheej yig thiab siv tau rau ntau yam kev siv hauv kev lag luam thiab kev lag luam. Tsis tas li ntawd, qhov tsim thermal relay yog rhiab heev rau kev hloov pauv kub thiab tuaj yeem teb sai thiab raug rau cov teeb meem thermal.
Kev ua haujlwm ntawm cov thermal relays yog raws li kev siv cov bimetal strips lossis lwm yam khoom siv uas rhiab rau qhov kub thiab txias. Thaum qhov kub nce siab tshaj qhov txwv uas tau teem tseg, cov khoom siv no dhau los ua thermal expansion, ua rau lawv khoov lossis deform. Qhov kev txav mus los no ces siv los tsav lub relay thiab qhib cov khoom siv hluav taws xob, ua kom lub zog hluav taws xob raug txiav tawm. Thaum qhov kub rov qab mus rau qib nyab xeeb, lub relay rov pib dua thiab tso cai rau lub voj voog rov ua haujlwm li qub.
Ntxiv rau lawv cov haujlwm tiv thaiv, cov thermal relays kuj tseem ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv hluav taws xob thiab lwm yam kev phom sij rau kev nyab xeeb. Los ntawm kev saib xyuas thiab tswj qhov kub ntawm cov khoom siv hluav taws xob, cov relays no pab txo qhov kev pheej hmoo ntawm cov khoom siv hluav taws xob kub dhau thiab tej zaum yuav kub hnyiab. Qhov no tseem ceeb heev rau cov chaw uas cov khoom siv hluav taws xob ua haujlwm tas li lossis raug rau cov khoom hnyav, vim tias qhov kev pheej hmoo ntawm kev kub dhau yog siab dua.
Thaum xaiv lub thermal relay rau ib daim ntawv thov tshwj xeeb, nws yog ib qho tseem ceeb uas yuav tsum xav txog cov yam xws li qhov kub thiab txias ua haujlwm, qhov ntsuas tam sim no, thiab lub sijhawm teb. Cov kev ntsuas no txiav txim siab qhov kev tsim nyog ntawm relay rau nws qhov kev siv thiab xyuas kom meej tias nws muaj peev xwm tiv thaiv cov khoom siv tau zoo hauv qab ntau yam kev ua haujlwm. Tsis tas li ntawd, kev teeb tsa thiab kev saib xyuas cov thermal relays kom zoo yog qhov tseem ceeb rau kev ua kom lawv muaj kev ua haujlwm zoo thiab lub neej ua haujlwm.
Hauv kev xaus, cov thermal relays yog cov khoom siv tseem ceeb uas muab kev tiv thaiv tseem ceeb tiv thaiv kev kub dhau thiab kev phom sij hluav taws xob hauv ntau yam kev siv. Lawv txoj haujlwm yooj yim thiab ua haujlwm tau zoo, ua ke nrog lawv lub peev xwm los tiv thaiv cov khoom siv thiab tiv thaiv kev phom sij, ua rau lawv yog ib feem tseem ceeb ntawm cov kab ke hluav taws xob niaj hnub. Los ntawm kev nkag siab txog kev ua haujlwm thiab qhov tseem ceeb ntawm thermal relays, cov engineers thiab cov kws kho tshuab tuaj yeem txiav txim siab tau zoo thaum siv cov kev ntsuas tiv thaiv thermal hauv kev teeb tsa hluav taws xob.
Lub sijhawm tshaj tawm: Lub Rau Hli-28-2024