Umahluko Phakathi koShintsho loMthwalo weVoliti ephezulu kunye nePhuli yeSekethe yeVoliti ephezulu

Iswitshi yomthwalo we-voltage ephezulu luhlobo lomsebenzi phakathi kwe-high voltage circuit breaker kunye ne-high voltage isolation switch, iswitshi yomthwalo we-voltage ephezulu kunye ne-high voltage fuse zihlala zisetyenziswa kuthotho; Isetyenziselwa ukulawula ii-power transformers. Iswitshi yomthwalo we-voltage ephezulu inesixhobo esilula sokucima i-arc, ngoko ke inokucima i-load current ethile kunye ne-overload current. Nangona kunjalo, ayinakuyikhupha i-short circuit current, ngoko ke isetyenziswa kuthotho kunye ne-high voltage fuse, kunye ne-fuse yokukhusela i-short circuit.

Iinkcazo ezahlukeneyo:

Iswitshi yomthwalo we-voltage ephezulu luhlobo lomsebenzi phakathi kwe-high voltage circuit breaker kunye ne-high voltage isolation switch, iswitshi yomthwalo we-voltage ephezulu kunye ne-high voltage fuse zihlala zisetyenziswa kuthotho; Isetyenziselwa ukulawula ii-power transformers. Iswitshi yomthwalo we-voltage ephezulu inesixhobo esilula sokucima i-arc, ngoko ke inokucima i-load current ethile kunye ne-overload current. Nangona kunjalo, ayinakuyikhupha i-short circuit current, ngoko ke isetyenziswa kuthotho kunye ne-high voltage fuse, kunye ne-fuse yokukhusela i-short circuit.

I-circuit breaker ibhekisa kwisixhobo sokutshintsha esinokucima, sithwale kwaye sicime umbane phantsi kweemeko zesekethe eziqhelekileyo size sicime, sithwale kwaye sicime umbane phantsi kweemeko zesekethe ezingaqhelekanga ngaphakathi kwexesha elithile. I-circuit breakers zahlulwe zaba yi-high-voltage circuit breakers kunye ne-low-voltage circuit breakers ngokwendlela ezisetyenziswa ngayo. Ulwahlulo lwemida ye-high-voltage kunye ne-low-voltage luyi-fuzzy. Ngokubanzi, ezo zingaphezulu kwe-3kV zibizwa ngokuba zizixhobo ze-high-voltage.

Imisebenzi eyahlukeneyo:

Iswitshi yomthwalo we-high-voltage ifanelekile kwinkqubo yamandla ye-AC 10KV enezigaba ezintathu, i-50HZ, okanye iseti epheleleyo yezixhobo zokusasaza kunye neswitshi yenethiwekhi yeringi, i-substation edibeneyo kunye nolunye usetyenziso oluxhasayo, olusetyenziswa kakhulu kwiiprojekthi zokwakha kunye nokuguqula inethiwekhi yedomeyini, amashishini emizi-mveliso kunye nemigodi, izakhiwo eziphakamileyo kunye nezibonelelo zikawonke-wonke, zingasetyenziswa njengombane wenethiwekhi yeringi okanye isiphelo, zidlala indima yokusasazwa kwamandla, ulawulo kunye nokukhusela. Zineengenelo zomthamo omkhulu wokuqhekeka, zikhuselekile kwaye zithembekile, zihlala ixesha elide zombane, zisebenza rhoqo, zincinci, zincinci, zinobunzima obuncinci, kwaye ngokusisiseko akukho mfuneko yokugcinwa. Ngombane ongasebenziyo, umbane ogqithisileyo. Ingaphula umbane wesekethe emfutshane kwaye ithintele izixhobo ukuba zingasebenzi ngaphandle kwesigaba. Iswitshi inokwaphuka okucacileyo kokwahlulwa. Ixhotyiswe nge-grounding switch electric spring mechanism enokukwazi ukuvala, enokulawulwa kude nakude.

Ii-circuit breakers zingasetyenziselwa ukusasaza amandla ombane, ukuqalisa ii-motor ezingasebenzi rhoqo, ukukhusela imigca yombane kunye nee-motor, kwaye zinqumle i-circuit ngokuzenzekelayo xa zineengxaki ezinkulu zokugqithisa, i-short circuit kunye ne-undervoltage. Imisebenzi yazo ilingana nokudibanisa i-fusing switch kunye ne-over and under thermal relay. Kwaye ngokubanzi akukho mfuneko yokutshintsha iindawo emva kokwaphula i-fault current. Okwangoku, isetyenziswa kakhulu.