Isitshixo seTransformer esiPhakathi nesiPhezulu: Isikhokelo soBugcisa

(Ixhaswa yiDatha kunye neMigangatho yoShishino)

​1. Imisebenzi Ephambili kunye Nendima Yoshishino​

Iswitshi sisebenza njengomqolo weenkqubo zamandla ze-voltage ephakathi nephezulu (MV/HV), senza imisebenzi emithathu ebalulekileyo kwiitransformer:

• ​Ukusasazwa koMbane: Ihambisa umbane ukusuka kwiitransformer ukuya kwimithwalo ngezixhobo zokuphakela, iibhasi, kunye nezixhobo zokukhusela.
• ​Ukukhuselwa kweMpazamo: Iphazamisa ukusebenza kwe-currents ngaphakathi kwee-milliseconds (umz., amandla okuphuka kwe-short-circuit engama-31.5kA–40kA) ukuthintela umonakalo kwizixhobo.
• ​Ukuzahlula kuKhuseleko: Iqinisekisa ukugcinwa okukhuselekileyo ngokusebenzisa iindlela zokudibanisa oomatshini kunye neendlela zokumisa umhlaba.

Umzekelo, inkqubo ye-12kV ifuna ubuncinci bokususwa kwe-phase-to-ground kwe-125mm (i-air-insulated) okanye i-40mm (i-gas-insulated) ukuthintela ukungqubana

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​2. Iintlobo kunye noYilo lweZakhiwo​

Ukwahlulwahlulwa kwezixhobo zokutshintsha kunye neenkcukacha eziphambili:

​Izinto ezibalulekileyo:

• ​Isiphuhlisi seSekethe seVacuum (i-VCB)​: Ibonelela ngemisebenzi yoomatshini engaphezu kwe-10,000 ene-
• ​Iibhasi: Iikhontraktha zeCopper okanye zeAluminiyam (ezinqamlezileyo ≥100×10mm²) ezinozinzo lobushushu olufikelela kwi-40kA/4s.
• ​Ukhuselo oludluliselweyo: Izixhobo ezihambelana ne-IEC 61850 zokufumanisa umbane ogqithisileyo, umahluko, kunye ne-arc-flash.

​3. Iinkcukacha zoBugcisa kunye neMigangatho​

• ​Uvavanyo lweVoltage:

• I-MV: 3.3kV–36kV (ixhaphakile kwiigridi zemizi-mveliso).
• I-HV: 66kV–800kV (iinethiwekhi zothumelo).
  • ​Amanqanaba okuvala:

• ​Iimpawu zoKhuseleko:

• ​Ii-Interlocks ezintlanu zokuthintela: Ithintela ukwenziwa kwamandla ngengozi (umz., iiswitshi zokwaphula umthwalo azikwazi ukuvala ngaphandle kokuba ii-circuit breakers zivuliwe).
• ​Ukukhululeka kuxinzelelo: Iiphaneli ezingaqhumiyo (umz., i-aluminium eyi-0.8mm) iigesi zomoya ezikhupha umoya kwi-≤50kPa ukukhusela abaqhubi.

​4. Izikhokelo zoKhetho kunye noLondolozo​

• ​Ukhetho Oluqhutywa Zizicelo:

• ​Iindawo eziPhantsi kweMpazamo ephezuluSebenzisa i-SF6-insulated GIS ukuze uphucule amandla e-dielectric.
• ​Iindawo EzinzimaKhetha iindawo ezivalekileyo ezinexabiso le-IP54 ezineengubo ezimelana nokugqwala.
  • ​Uvavanyo oluQhelekileyo:
• ​Ukumelana noQhagamshelwano: ≤100μΩ (ilinganiswa nge-micro-ohmmeter).
• ​Uvavanyo lweDielectric: 1.2/50μs lightning impulse (±10% ukunyamezelana).
• ​Ukuqina Koomatshini: Imisebenzi engaphezu kwama-5,000 yee-circuit breakers.

​5. Iindlela Ezivelayo​

1. ​Ukwenziwa kwedijithali:

• I-Smart switchgear idibanisa ii-sensors ze-IoT zokujonga ubushushu bexesha langempela, ukungcangcazela, kunye nokubeka esweni ukukhutshwa okuncinci.
• Umzekelo: Iqonga le-EcoStruxure likaSchneider Electric lenza ukuba kubekho ukugcinwa kwangaphambili ngokusebenzisa uhlalutyo lwelifu.
  2. ​Uzinzo:
• Ezinye iindlela ezingenayo i-SF6 (umz., i-vacuum okanye i-solid-insulation) zinciphisa ukukhutshwa kwegesi ezibangela ubushushu obuphezulu ngama-95%.
  3. ​Uyilo lweModular:
• Iikhabhathi ezifakwayo (umz., i-UniGear ZS1 ye-ABB) zinciphisa ixesha lokufaka nge-40%.

​Iireferensi​

• I-IEC 62271-200:Iswitshi efakwe igesi efakwe isinyithi
• IEEE C37.2:Umgangatho weenombolo zomsebenzi wezixhobo zenkqubo yamandla ombane
• Igridi yeSizwe e-UK:Iindlela ezilungileyo zokulungisa izixhobo zokutshintsha