Nhanganyaya kuChikamu Chikuru cheRing

Kabhineti yeringi yemagetsi inozivikanwa seSF6 load switch uye SF6 load switch + fuse combination appliance inoshandiswa mu ring network line kana terminal. SF6 load switch i load switch yakanaka kwazvo inowanikwa nevashandisi vazhinji mumakore achangopfuura. Kuwedzera kune zvakanakira zvekushanda kwenguva refu kwemagetsi, simba rakasimba rekupwanya magetsi uye vacuum load switch, zvakanakira zvayo zvikuru zviri nyore kuwana nzvimbo nhatu dzekushanda (pa, off uye ground), small current (inductance, capacitance) yekuvhura nekupwanya magetsi, uye kugona kwakasimba kwekudzivirira mamiriro ekunze akaoma. Yakakodzera kufarirwa uye kushandiswa mumaguta nemaruwa medium voltage distribution network.

Kabhineti yeringi ine mambure inowanzo kamurwa kuita mhando mbiri: air insulation uye SF6 insulation. Inoshandiswa pakupatsanura nekuvhara load current, kuvhura nekupwanya short circuit current uye transformer no-load current, uye kuchaja current ye overhead line ne cable line padaro rakati. Inoita basa rekudzora nekudzivirira, uye chinhu chakakosha chekushandura magetsi eringi ne network terminal power supply. Mukati me cabinet, load switch ine air insulation inonyanya kusanganisira mhando yekugadzira gasi, pressure type uye vacuum type. Load switch ine SF6 insulation ndeye SF6 type. Nekuti SF6 gasi yakavharwa mu shell, partition fracture inoumbwa nayo haionekwe. Load switch iri mu ring network cabinet inowanzoda nzvimbo nhatu, kureva kuti, kucheka mutoro, kuparadzanisa circuit, zvinogoneka ne grounding. Gas production type, pressure type uye SF6 type load switch zviri nyore kuwana nzvimbo nhatu, uye vacuum arc extinguishing chamber inogona kungotyoka, haigone kuparadzaniswa, saka general vacuum load ring network switch inofanira kuwedzerwa solation switch isati yatanga load switch, kuitira kuti pave ne solation break.

Chishandiso chekuisa mutoro imhando yemuchina wekuchinja une mudziyo uri nyore wekudzima arc. Chishandiso chekuisa mutoro chinoshandisa gasi reSF6 sechinodzivirira uye chinodzima arc chinonzi SF6 load switch. Chinogona kushandiswa kubatidza nekudzima load current uye overload current, uye chinogonawo kushandiswa kubatidza nekudzima mitsetse isina mutoro, ma transformer asina mutoro uye ma capacitor banks, nezvimwewo. Chishandiso chekuisa mutoro che three-bit chine mabasa e on, off and ground chine hunhu hwechimiro chiri nyore uye mutengo wakaderera. Chishandiso chekuisa mutoro chete ndicho chisingakwanise kubvisa short circuit current.

SF6 load switch + fuse combination appliance inofambiswa neSF6 load switch kuti ikwanise kutakura overload current (overload current yeSF6 load switch ichiri mukati mehuwandu hwe load switch yakatarwa kubva pa current) uye yakajairika working current kuvhara nekutyoka, uye inodawo kutakura "transfer current" off. Mafusi e high voltage anotarisira kudzivirirwa kwe short circuit uye overload protection pa high voltage side. Panguva ino, boka re SF6 load switch nemafusi matatu ane triggers, chero bedzi chero trigger action, linkage mechanism yayo ichaita load switch three-phase automatic switch. Kubatanidzwa kwezviviri izvi kunogona kusangana nezvinodiwa zve power distribution system operation protection pasi pemamiriro ezvinhu akajairwa uye ekutadza.

Kabhineti yeringi inogona kukamurwa kuita network yeringi yemukati uye network yeringi yekunze

Network yemukati memagetsi inowanzo shandiswa kugovanisa magetsi edivi remagetsi ane simba rakawanda. Inoumbwa nekabhineti yemagetsi inouya, kabhineti yekuyera, kabhineti yePT uye kabhineti yetransformer. Kune vashandisi vane simba rakawanda, tambo inouya inofanira kushandisa kabhineti yemagetsi maviri. Dunhu rechinomwe rakati "ikozvino vamwe vanhu vachaisa switch uye fuse musanganiswa wekabhineti yemagetsi ane simba rakawanda inonzi ring network cabinet, inonyanya kusiyanisa nekabhineti yemagetsi ane simba rakawanda" hazvina kururama, kabhineti yemagetsi inewo chirongwa chemagetsi ane simba rakawanda.

Network yekunze inoshandiswa mumagetsi emumaguta, uchishandisa kabati ye common box type SF6 ring network, hunhu hukuru hwekabati rerudzi urwu ndehwekuti dziviriro yakakwira, inogona kuita IP67, yakakodzera kushandiswa kunze, uye inogona kunyikwa mumvura kwenguva pfupi. Chirongwa chemagetsi enetwork ye loop chinowanzo tora loop imwe chete mukati, loop imwe chete kunze, kaviri kana katatu kuita outgoing circuit, ndiko kuti, kuumbwa kwe hand in hand loop network power supply mode.

Kuti pave nechokwadi chekuti magetsi akavimbika uye anoramba aripo, mitsetse miviri yekupinda inoshandiswa kupa magetsi, iyo inoumba rin'i. SF6 load switch, nzvimbo nhatu (kuvhara, kuvhura, kudzika), mutsetse webazi, transformer.