UKUSETYENZISWA KWE-SF6 LOAD SWITCH KWI-DISTRABTION NETWORK

Ukusetyenziswa kwe-SF6 Load Switch kwiNethiwekhi yoSasazo

Iiswitshi ze-medium-voltage ezisetyenziswa kwizikhululo ze-hub eziqhelekileyo zonke zisebenzisa ii-circuit breakers njengezixhobo zokulawula nokukhusela, kwaye kufuneka zibe ne-automatic reclosing. Nangona kunjalo, amandla ombane wesikhululo ngasinye sokuhambisa umbane kwinethiwekhi yeringi ngokubanzi awekho makhulu, i-current yayo elinganiselweyo incinci kune-current elinganiselweyo yenethiwekhi yeringi, kwaye i-reclosing ayifuneki, ngoko ke iyunithi yombane yesikhululo sokuhambisa umbane senethiwekhi yeringi inokusebenzisa isakhiwo esilula, ixabiso eliphantsi kunye nokusebenza okuphezulu. Indibaniselwano yeswitshi yomthwalo + i-fuse enokuhlangabezana neemfuno.

Ukudityaniswa kweswitshi yomthwalo kunye nefusi yokutshintsha i-circuit breaker yendabuko kuye kwasetyenziswa kwamanye amazwe kangangesiqingatha senkulungwane. Umlinganiselo kunye nemveliso ye-circuit breakers yi-1:2.5, nto leyo isesemva kakhulu kumazwe aphuhlileyo kwezoshishino. Kwakhona kubonisa ukuba kwilizwe lam, ii-SF6 load switches zinamathuba amakhulu ekuphuhlisweni kwenethiwekhi yokusasazwa kwe-medium-voltage.

Ngamafutshane, ngokuthelekisa ukusetyenziswa kwee-SF6 load switches kunye nee-circuit breakers kwiinethiwekhi zokusasazwa ezinomthamo omncinci, la manqaku alandelayo angashwankathelwa:

I-circuit breaker isebenzisana nokhuseleko lwe-relay kwaye inazo zonke izixhobo

Umsebenzi wokukhusela kunye nomsebenzi wokusebenza.

Iswitshi yomthwalo ye-SF6 ngokusisiseko inomsebenzi ofanayo ne-circuit breaker, ngaphandle kokuba ayinakophula i-short circuit (ayifuneki).

Ukusebenza kwe-SF6 load switch breaking no-load transformer kungcono kunokusebenza kwe-circuit breaker.

Iswitshi yomthwalo ye-SF6 kunye nefuse ethintelayo yangoku nayo inokwaphula i-short circuit ngexesha elinye, nto leyo efana kakhulu ne-circuit breaker.

Iswitshi yomthwalo ye-SF6 kunye nefuse yokunciphisa yangoku ayimbi kakhulu kune-circuit breaker, kodwa ixabiso liphantsi kakhulu.