39. Lub luag haujlwm ntawm thermal relays
Lub thermal relay yog ib qho khoom siv hluav taws xob uas ua haujlwm los ntawm lub hauv paus ntsiab lus ntawm kev thermal thermal ntawm qhov tam sim no. Nws yog tsuas yog siv rau kev tiv thaiv kev tsav tsheb, kev tiv thaiv tsis raws sij hawm thiab kev tswj ntawm lub cua sov lub xeev ntawm lwm cov khoom siv hluav taws xob.
40. Cov hom haujlwm teev dej num zoo li cas nyob hauv?
Rated ua hauj lwm: 8-teev ua hauj lwm, kev ua hauj lwm mus sij hawm ntev, kev ua hauj lwm ua hauj lwm luv luv, kev ua hauj lwm rau nruab nrab.
41. Yuav ua li cas rau sab nrauv-braking thiab zog-haus ntawm 3-theem AC motor?
Rov qab nres yog tsim rau cov cav kub cev me me mus txog 10 kW uas tsis nres ntau zaus. Lub zog nres yog tsim rau cov motors nrog lub peev xwm loj uas yuav tsum tau tus txhuam, meej thiab nquag braking.
42. Tus nais khus uas nquag siv yog dab tsi?
Kev tswj cov nyees khawm, kev hloov keyboards, qhov keyboisees, kev hloov mus rau lwm tus neeg, cov tswj kav thiab lwm yam khoom siv hluav taws xob (xws li ko taw keyboards, thaub qab keyboards, hloov keyboards, toggle keyboards, teeb qhia).
43. Lub hauv paus tswj kev tiv thaiv hluav taws xob li cas?
Raws li cov khoom siv qhia, hluav taws xob tswj schematic daim duab, tag nrho daim duab thaiv cov khoom hluav taws xob, hluav taws xob tivthaiv teeb thiab thaiv daim duab.
44. Hom twg cov kev pabcuam raug khaw tseg raws li lub ntsiab lus thiab kev ua haujlwm ntawm qhov teebmeev tawm tswvyim?
Raws li qhov xwm ntawm lub teeb liab input: voltage, tam sim no, lub sij hawm, kub, ceev, siab, thiab lwm yam.
Raws li txoj cai ua hauj lwm: electromagnetic, inductive, electric, thermal, hluav taws xob thiab lwm yam.
45. Qhov txawv nruab nrab ntawm qhov cuam tshuam thiab tus neeg teb xov tooj yog dab tsi? Nyob rau hauv cov kev mob dab tsi, kev siv lub tshuab txuas kom siv tau es tsis txhob siv tus contactor?
Lub ntsiab tiv tauj ntawm tus contactor muaj lub peev xwm loj thiab raug siv rau lub ntsiab lus tseem ceeb; cov xov tooj ntawm cov xov tooj sib txuas ntawm nruab nrab yog loj, thiab tsuas yog siv rau txoj kev tswj lub voj. Thaum lub voj voog tam sim no me (tsawg dua 5A), ib qho kev sib tshuam sib kis yuav siv tau los ntawm tus contactor.
46. Cov cai hais txog kev kos duab hluav taws xob yog dab tsi?
(1) Cov hluav taws xob schematic daim duab feem ntau muab faib ua ob ntu: lub voj voog loj thiab lub koom haum pabcuam.
(2) Txhua yam khoom siv hluav taws xob yuav tsum yog siv cov cim graphic thiab cim cov cim ntawm lub teb chaws tus qauv.
(3) Lub luag haujlwm ntawm cov khoom siv hluav taws xob ntawm txhua yam khoom hluav taws xob yuav tsum tau ua raws li lub hauv paus ntsiab lus ntawm kev nyeem yooj yim thiab kev ntsuam xyuas, thiab qhov sib txawv ntawm tib qho hluav taws xob feem yuav tsis tuaj yeem ua ke.
(4) Cov kev sib txuas ntawm tag nrho cov khoom hluav taws xob yog kos nyob rau hauv ib lub xeev qhib thiab kaw thaum tsis muaj hwj chim los yog tsis muaj quab yuam sab nraud.
(5) Cov ntsiab lus sib txuas ntawm cov kab hlau txuas nrog txoj kab txuas hluav taws xob ncaj qha yuav tsum tau qhia los ntawm cov xim dub.
(6) Lub tshuab hluav taws xob feem ntau yuav tsum tau ua kom tiav raws li saum toj mus rau sab hauv, sab laug mus rau sab xis, thiab tuaj yeem teem horizontally los yog vertically.
Yog tias koj xav yuav khoom noj khoom siv cav, thov koj them lub hwj chim chopper lub cav.
