High-power DC stabilized fais fab mov tiv thaiv hom
Kev tiv thaiv overcurrent feem ntau suav nrog ob hom kev tiv thaiv luv luv thiab kev tiv thaiv overload.
Overload tam sim no:
Cov hluav taws xob hluav taws xob yog overloaded vim yog cov khoom siv hluav taws xob txuas nrog ntau dhau los yog cov khoom siv hluav taws xob ntau dhau (piv txwv li, cov khoom siv hluav taws xob sib txuas ntawm lub cev muaj zog loj dhau). Nws cov nqi tam sim no tsis ntau tshaj li qhov tam sim no nqa lub peev xwm ntawm lub voj voog, thiab qhov tshwm sim yog qhov ua haujlwm kub siab tshaj qhov kev tso cai, uas yuav ua rau kom lub rwb thaiv tsev tsis zoo thiab ua rau lub neej luv, thiab nws tsis ncaj qha rau kev puas tsuaj. . Cov yam ntxwv ntawm kev tiv thaiv overload yog me me tam sim no thiab lub sijhawm txwv tsis pub dhau sijhawm. Thermal relays thiab lub sij hawm ncua sij hawm electromagnetic tam sim no relays feem ntau yog siv los tiv thaiv overload tivthaiv. fuses kuj tseem siv tau los ua cov khoom tiv thaiv overload yam tsis muaj kev cuam tshuam ntau dhau. Hauv TN system, thaum siv fuses rau kev tiv thaiv luv luv, qhov ntsuas tam sim no ntawm cov yaj yuav tsum tsawg dua 1/4 ntawm ib-theem luv-circuit tam sim no; Thaum siv Circuit Court breakers rau kev tiv thaiv, qhov chaw ntawm lub overcurrent tso tawm rau instantaneous txiav txim los yog ncua sij hawm ncua kev txiav txim ntawm lub Circuit Court breaker Qhov tam sim no yuav tsum tsawg tshaj li 2/3 ntawm ib-theem luv luv-circuit tam sim no.
Short circuit tam sim no:
Lub luv luv-circuit tiv thaiv ntawm high-power DC stabilized fais fab mov yog yus muaj los ntawm loj teeb tam sim no thiab instantaneous ua. Electromagnetic tam sim no tso tawm (los yog relays) thiab fuses feem ntau yog siv los ua cov khoom tiv thaiv luv luv. Thaum lub voj rwb thaiv tsev raug puas tsuaj rau ntau yam laj thawj (xws li kev tshaj tawm), cov neeg siv hluav taws xob uas muaj peev xwm tsis sib xws ua los ntawm qhov chaw txhaum nrog qhov tsis zoo impedance, uas yog hu ua luv luv Circuit Court. Txij li txoj hauv kev ntawm qhov luv luv Circuit Court no yog txhua txoj hauv kev hlau, qhov luv luv Circuit Court no tau muab faib ua cov hlau luv luv Circuit Court, thiab nws qhov luv luv Circuit Court tam sim no tus nqi tuaj yeem ncav cuag ntau pua lossis ntau txhiab zaus ntawm lub peev xwm nqa tam sim no ntawm lub voj voog, uas tuaj yeem tsim qhov txawv txav. kub kub los yog loj mechanical stress. ua rau muaj kev puas tsuaj ntau yam.
