Instantaneous Overcurrent Protection yog dab tsi?

Qhov tseem ceeb ntawm kev tiv thaiv overcurrent

Instantaneous overcurrent tiv thaiv yog ib qho tseem ceeb tshaj plaws thiab tseem ceeb tam sim no txoj kev tiv thaiv hauv lub tshuab hluav taws xob. Nws cov yam ntxwv tseem ceeb yog: nrawm nrawm thiab tsis ncua sijhawm.

Kev ua haujlwm ntawm instantaneous overcurrent tiv thaiv: Nyob rau hauv cov xwm txheej ntawm ib tug luv luv Circuit Court, nws disconnects Circuit Court kom sai li sai tau los tiv thaiv cov khoom thiab cov neeg ua hauj lwm. Yog tsis muaj kev tiv thaiv overcurrent tam sim no, 8000A tam sim no kav ntev li 0.5 vib nas this yuav hlawv tawm ib lub cable.

Lub hauv paus ntsiab lus kev khiav hauj lwm ntawm instantaneous overcurrent tiv thaiv=Tiag - lub sij hawm tam sim no saib xyuas → Thaum tus nqi teev yog tshaj → Direct tripping tsis ncua

Vim li cas thiaj xav tau kev tiv thaiv overcurrent?

1- Tiv thaiv cov cuab yeej los ntawm burnout

Yog tias tsis txuas sai sai, cov cables yuav yaj hauv vib nas this, thiab cov tshuab hluav taws xob / cov tshuab hluav taws xob yuav raug txo kom cov khoom seem.

2- Tiv thaiv kom tsis txhob muaj xwm txheej ntau ntxiv
Yog tias qhov luv luv Circuit Court tsis raug txiav rau lub sijhawm, nws yuav cuam tshuam rau cov khoom siv hluav taws xob

Tej zaum yuav ua rau cascading tripping → Fais fab tuag ntawm tag nrho cov busbar → Loj - teev fais fab tuag

Instantaneous overcurrent tiv thaiv txwv qhov txhaum mus rau qhov tsawg kawg nkaus

3- Ua kom muaj kev nyab xeeb ntawm tus kheej
Instantaneous overcurrent tiv thaiv mus ncig ua ntej muaj kev phom sij tshwm sim, txo kev pheej hmoo ntawm kev raug mob.