Koj puas paub tias Circuit Breakers yog dab tsi?

Cov Circuit Breakers yog dab tsi?

Ib lub qhov hluav taws xob uas tsim los tiv thaiv lub voj voog hluav taws xob kom tsis txhob puas tsuaj uas yog los ntawm kev siv hluav taws xob ntau dhau/kev thauj khoom ntau dhau lossis luv luv hu ua lub tshuab hluav taws xob txiav hluav taws xob. Nws lub luag haujlwm tseem ceeb yog txiav cov hluav taws xob tom qab cov relays tiv thaiv pom muaj teeb meem.

Kev Ua Haujlwm ntawm Circuit Breaker Switch.

Ib lub tshuab hluav taws xob ua haujlwm los ntawm kev ua lub cuab yeej kev nyab xeeb uas tiv thaiv kev puas tsuaj rau cov motors thiab cov xov hlau thaum cov hluav taws xob ntws los ntawm lub voj voog hluav taws xob hloov nws cov kev txwv tsim. Nws ua qhov no los ntawm kev tshem tawm cov hluav taws xob ntawm lub voj voog thaum muaj xwm txheej tsis zoo tshwm sim.

DC Circuit Breakers Ua Haujlwm Li Cas?

Raws li lawv lub npe qhia, cov cuab yeej hluav taws xob Direct Current (DC) tiv thaiv cov khoom siv hluav taws xob uas ua haujlwm ntawm direct current. Qhov sib txawv tseem ceeb ntawm direct current thiab alternating current yog tias qhov hluav taws xob tso zis hauv DC yog qhov tas li. Qhov sib txawv, qhov hluav taws xob tso zis hauv Alternating Current (AC) voj voog ntau zaus txhua ob.

Lub luag haujlwm ntawm DC Circuit Breaker yog dab tsi?

Cov ntsiab cai tiv thaiv thermal thiab magnetic tib yam siv rau DC breakers li lawv ua rau AC circuit breakers:
Kev tiv thaiv thermal ua rau lub DC circuit breaker tawg thaum lub zog hluav taws xob ntau dua li tus nqi ntsuas. Bimetallic contact heats nthuav dav thiab tawg lub circuit breaker hauv lub tshuab tiv thaiv no. Kev tiv thaiv thermal ua haujlwm sai dua vim tias lub zog hluav taws xob tsim ntau cua sov los nthuav dav thiab qhib qhov kev sib txuas hluav taws xob vim tias lub zog hluav taws xob ntau heev. Lub DC circuit breaker lub thermal tiv thaiv tiv thaiv lub zog hluav taws xob ntau dhau uas siab dua li lub zog hluav taws xob ib txwm muaj.
Thaum muaj cov hluav taws xob muaj zog heev, kev tiv thaiv hlau nplaum yuav ua rau lub DC circuit breaker tawg, thiab qhov teb yeej ib txwm tam sim ntawd. Ib yam li AC circuit breakers, DC circuit breakers muaj peev xwm tawg uas sawv cev rau qhov hluav taws xob tseem ceeb tshaj plaws uas tuaj yeem cuam tshuam.
Qhov tseeb tias qhov tam sim no raug nres tas li nrog DC circuit breakers txhais tau tias lub circuit breaker yuav tsum qhib qhov hluav taws xob txuas ntxiv mus kom cuam tshuam qhov tam sim no txhaum. Lub DC circuit breaker txoj kev tiv thaiv sib nqus tiv thaiv cov circuits luv luv thiab cov kev ua txhaum loj dua li qhov overload.

Peb Hom Miniature Circuit Breaker:

Hom B (kev mus ncig ntawm 3-5 zaug tam sim no).
Hom C (mus ncig ntawm 5-10 zaug tam sim no).
Hom D (mus ncig ntawm 10-20 zaug tam sim no).