Thermal relays feem ntau yog siv los tiv thaiv cov motors los ntawm overload, tiv thaiv theem tsis ua hauj lwm thiab kev tiv thaiv peb-theem fais fab tsis txaus, thiab ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv lub cev muaj zog. Yog li ntawd, thaum xaiv, koj yuav tsum nkag siab txog cov xwm txheej ntawm lub cev muaj zog, xws li kev ua haujlwm ib puag ncig, pib tam sim no, lub zog thauj khoom, kev ua haujlwm, kev tso cai ntau dhau, thiab lwm yam.
1. Raws li txoj cai, ampere-thib ob yam ntxwv ntawm lub thermal relay yuav tsum nyob ze li sai tau los yog txawm coincide nrog lub overload yam ntxwv ntawm lub cev muaj zog, los yog nyob rau hauv lub overload yam ntxwv ntawm lub cev muaj zog. Nyob rau tib lub sijhawm, lub thermal relay yuav tsum tsis txhob cuam tshuam (tsis cuam tshuam) thaum lub sijhawm luv luv overload thiab pib ntawm lub cev muaj zog. kev ua).
2. Thaum lub thermal relay siv los tiv thaiv lub cev muaj zog nrog kev ua haujlwm ntev lossis kev ua haujlwm ntev ntev, nws feem ntau xaiv raws li qhov ntsuas tam sim no ntawm lub cev muaj zog. Piv txwv li, qhov teeb tsa tus nqi ntawm thermal relay tuaj yeem sib npaug ntawm 0.95 txog 1.05 npaug ntawm qhov ntsuas tam sim no ntawm lub cev muaj zog, lossis tus nqi nruab nrab ntawm qhov teeb tsa tam sim no ntawm thermal relay tuaj yeem sib npaug rau qhov ntsuas tam sim no. ntawm lub cev muaj zog, thiab tom qab ntawd kho.
3. Thaum lub thermal relay siv los tiv thaiv lub cev muaj zog uas ua haujlwm ntau zaus rau lub sijhawm luv luv, lub thermal relay tsuas muaj qee qhov kev hloov pauv. Yog tias muaj ntau txoj haujlwm nyob rau lub sijhawm luv luv, lub thermal relay nrog lub nrawm nrawm tam sim no transformer yuav tsum raug xaiv.
4. Rau kev ua hauj lwm tshwj xeeb motors nrog nquag mus rau pem hauv ntej thiab thim rov qab thiab nquag hloov mus rau thiab tawm, nws tsis pom zoo kom siv thermal relays raws li kev tiv thaiv overload. Es tsis txhob, qhov kub thiab txias relays lossis thermistors embedded nyob rau hauv lub motor windings yuav tsum tau siv los tiv thaiv.
Thermal relays yog pheej yig, nqi-zoo, thiab muaj kev ua haujlwm ruaj khov. Lawv tau dav siv nyob rau hauv 380 V low-voltage motors nyob rau hauv loj thermal fais fab nroj tsuag raws li overload thiab theem tsis ua hauj lwm tiv thaiv.
Dab tsi yog Txoj Kev Xaiv Cov Thermal Relay?
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