Isingeniso kuma-RMU
ARing Main Unit (RMU)yingxenye ebalulekile ye-switchgear esetshenziswa ezinhlelweni zokusabalalisa amandla kagesi aphakathi nendawo, ngokuvamile esebenza kuma-voltage angu-11kV kuya ku-33kV. ukuqinisekisa ukutholakala kukagesi okuqhubekayo, okuphephile nokuthembekile, ikakhulukazi kumanethiwekhi ane-loop noma ane-meshed. ukushintsha, ukuhlukanisa, nokuvikelaizingxenye ezahlukene zegridi yokusabalalisa.
Inhloso Eyinhloko ye-RMU
Inhloso eyisisekelo ye-RMU uku:
- Gcina amandla angaphazanyiswangokuvumela ukuhlukaniswa kwamaphutha ngaphandle kokuthinta yonke inethiwekhi.
- Nika amandlaukudluliswa komthwalophakathi kwemigqa yokuphakelayo ohlelweni lokusabalalisa indandatho.
- Vikela ama-transformer nama-cable feederngama-circuit breaker nama-fuse.
- Nikezaukushintshwa okukude nokwenziwa ngesandlaukuze kube nezimo zokusebenza.
Empeleni, ama-RMU awumgogodla wamanethiwekhi okusabalalisa aqinile, abekezelela amaphutha.
Izinkambu Zohlelo
Ama-RMU asetshenziswa kabanzi ku:
- Ukusatshalaliswa kwamandla emadolobheni nasezindaweni zasemadolobheni
- Amapaki nezimboni
- Izakhiwo zezentengiselwano nezakhiwo eziphakeme
- Amagridi wamandla avuselelekayo(amapulazi elanga nawomoya)
- Ingqalasizinda yomphakathi(izibhedlela, ama-metro, izikhumulo zezindiza)
Ziwusizo ikakhulukazi laphoizithiyo zesikhalafuthiukwethembeka okuphezuluzibalulekile.
Isimo Semakethe kanye Nezitayela
Ngokuvumelana neMordor IntelligencefuthiIEEMAkubika, imakethe ye-RMU ikhula kancane kancane, iqhutshwa:
- Ukushintshela emhlabeni jikeleleamagridi ahlakaniphile
- Iyakhulaukufudukela emadolobheni kanye nokufakwa kukagesi
- Ukugcizelelwaukuthembeka kwamandla nokuphepha
- Ukuthunyelwa okukhulayo kweimithombo yamandla avuselelekayo
Abakhiqizi abakhulu bathandaI-ABB,I-Schneider Electric, futhiEatonbahola emisha ekwakhiweni kwe-RMU ehlangene, eco-friendly.
Amapharamitha Obuchwepheshe (I-12kV RMU ejwayelekile)
| Ipharamitha | Inani |
|---|---|
| I-Voltage elinganiselwe | 12kV |
| Ikalwe okwamanje | 630A |
| Isilinganiso Somjikelezo Esifushane | 20-25kA |
| Uhlobo lwe-Insulation | SF₆ / Solid Dielectric |
| Idigri Yokuvikela | IP54 / IP65 |
| Ukuthobela Amazinga | I-IEC 62271-100 / 200 / 103 |
I-RMU vs Traditional Switchgear
| Isici | Ring Main Unit (RMU) | I-Switchgear Yendabuko |
| Usayizi | Ihlangene | Izinyathelo ezinkulu |
| Isondlo | Okuncane | Ukusevisa okuvamile |
| Ukusebenza | Imanuwali / Eyezimoto / Ekude | Ikakhulukazi eyenziwa ngesandla |
| Ukuphepha | Phezulu (indawo evalekile) | Kuphakathi |
| Indawo Yokufaka | Ngaphakathi / Ngaphandle | Ikakhulukazi endlini |
Umhlahlandlela Wokuthenga Nokukhethwa
Lapho ukhetha i-RMU, cabanga:
- I-voltage elinganisiwe neyamanjeizidingo
- Okuncanyelwayoi-insulation medium(SF₆ igesi vs. solid dielectric)
- Uhlobo lokucushwa(2-indlela, 3-indlela, 4-indlela)
- Ukuqapha okukude kanye ne-automationamakhono
- Ukuhambisana neI-IEC kanye namazinga wokusetshenziswa kwendawo
Izinketho ezihamba phambili zihlanganisa amamodeli ngePINEELE,Siemens,I-ABB, futhiLucy Electric.
Imibuzo Evame Ukubuzwa (FAQ)
A1:Okunikezwayo kwama-RMUukuphindaphindeka, ukubumbana, kanye nokuhlukaniswa ngamaphutha, okuvumela amandla ukuthi adlulise umzila ngesikhathi sokulungiswa ngaphandle kokuthikameza abasebenzisi bokugcina.
A2:NgenkathiI-SF₆ iyasebenza, abakhiqizi abaningi manje bayanikezaezinye izindlela eziqinilengenxa yokukhathazeka kwemvelo.
A3:Ama-RMU ekhwalithi ephezulu avame ukunikezwaImpilo yeminyaka engama-25-30ngokulungiswa okuncane.
Isiphetho
Kumanethiwekhi wamandla esimanje, iinhloso ye-RMUidlula ukushintsha okuyisisekelo. ukuthembeka kwegridi, ukuguquguquka kokusebenza, nokuphepha.
Ukuze uthole imininingwane eyengeziwe, bheka amazinga ashicilelwe nguIEEE,I-Wikipedia,I-Schneider Electric, futhiAmaphepha amhlophe ezobuchwepheshe e-ABB.