SF6 Ring Main Units (RMUs): Hukumomi na Yanzu na Ilimin Kirkiro, Tushen Hadakin Ayyuka, Mafi Mu'amala da Metal-Clad Switchgear da Kammalowa

Hanyar Tashin Karamin Kirki Da Turbin SF6 Ring Main Units

Don samun tattalin jirgin karamin kirki, an yi amfani da hanyar tashin karamin SF6 (RMUs) na gaba. Wani abu mai muhimmanci na RMUs na farko ta biyu shine amfani da kayan epoxy resin masu sauyi da gas SF6 a matsayin tashin karamin. Ana iya amfani da wata fadin bayanai na uku da karamin tsari da karamin tsari mai tsarki, kuma ana iya bincike sabon kayan a kan wata fadin bayanai. Ana iya amfani da shirin bayanai masu sauyi don inganta rawa daga kayan a lokacin da karamin tsari ba ya fi sani ba, wanda yake da kyau ga al'amuran masu kayan.

Saboda abubuwa masu muhimmanci kamar yawan abubuwan da ke faruwa a cikin sistem, yawan kayan tashin karamin, kudin cikakken bayanai, kafin bayanai, da kuma kudin lalace-ba, waɗannan RMUs suka amfani da su sosai a cikin shekaru ɗaya zuwa biyar, kuma suka nuna dalilin damar da ke tsabta. Idan ake nemo da kuma ake kontrola hira RMUs na mafi muhimmanci a cikin jirgin karamin mai fitarwa, mutum zai iya samun tashin karamin a cikin lokaci dabam, wanda yake da kyau ga wani lokaci da za a yi aiki a kan nemo da kudeta bayanai, kuma yana ƙara da lafiya a kan tashin karamin mutane.

Tushen Hanyar Tashin Karamin SF6 Ring Main Units

Hanyar tashin karamin SF6 ring main, a matsayin nasarorin da na farko na tattalin jirgin karamin, tana ba da amincewa wajen samun tashin karamin mai tsabta. "Tattalin jirgi" na amfani da hanyar tashin karamin, a kan tattalin birnin da ake kontrola da ake bayyana, wanda yake da kyau ga ma'adantattun tashin karamin mai tsabta, yana nuna hukumar da "tsohon-tsaki" don tattalin jirgin karamin, tattalin jirgin karamin, tattalin jirgin karamin, da kuma tattalin jirgin karamin.

Idan ake yi tattalin jirgi da inganta, ana iya zama da amfani da kayan tashin karamin na musamman, kuma ana iya samun abubuwan da ke faruwa a kan tattalin jirgi, wanda yake da kyau ga tattalin jirgin karamin mai tsabta, tattalin jirgin karamin, tattalin jirgin karamin, da kuma tattalin jirgin karamin. Wannan yana da muhimmanci wajen taimaka da tattalin jirgin karamin, tashin karamin mai tsabta, tattalin jirgin karamin mai kyau, da kuma tattalin jirgin karamin mai kyau da tattalin jirgin karamin mai kyau da tattalin jirgin karamin mai kyau da tattalin jirgin karamin mai kyau.

II. Abubuwan Da Su Ke Faruwa Cewa RMUs Mai Tashin Karamin SF6 Daga Metal-Clad Switchgear A Masu "Five Prevention" Interlocks

A cikin tattalin tashin karamin, "Five Prevention" (karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake kawo, karamin tsari da ake k......

Misoperation Prevention for Earthing Switches in Incomer Cabinets of Metal-Clad Switchgear

Wasu metal-clad switchgear suna da karamin tsari na maimakon bayanai da maimakon bayanai. Idan a nan hukumomin da ke faruwa, yana da yawan abubuwan da suke faruwa cewa RMUs mai tashin karamin SF6 suna da interlocks masu sauyi da logical interlocks a maimakon bayanai.

Misoperation Prevention for Energized Transformer Compartments

A cikin metal-clad switchgear da ake amfani a kan containerized substations, amsa na iya shiga ita ne a kan transformer da ke faruwa. Idan bayanai ya fi sani, electromagnetic lock ba zai iya buɗe ba; idan bayanai ba ta fi sani ba, voltage presence indicator da electromagnetic lock ba zai samun amsa ba, kuma ba za a iya buɗe ba. Wannan yana nuna abin da ke buƙata don buɗe min aiki, wanda yake da kyau ga al'amuran masu kayan.

RMUs mai tashin karamin SF6 suna badalawa electromagnetic lock da door limit switch. Amincewar da ta ce da aka bincika a kan trip circuit na transformer cabinet, amsa na iya shiga ita ne a kan transformer da ke faruwa. Idan ana buɗe rufin bayanai, limit switch zai yi aiki, kuma zai yi trip don kudeta amsa, wanda yake da kyau ga al'amuran masu kayan.

Idan a nan hukumomin da ke faruwa, RMUs mai tashin karamin SF6 suna ƙara da yawan abubuwan da suke faruwa cewa "Five Prevention" interlocks da metal-clad switchgear, kuma suna ƙara da yawan abubuwan da suke faruwa cewa metal-clad switchgear. Saboda cewa abubuwan da suke faruwa a cikin RMUs mai tashin karamin SF6 suna da kayan tashin karamin, RMUs mai tashin karamin SF6 suna da muhimmanci a matsayin muhimman kayan tashin karamin waɗannan masu aiki da kuma waɗannan masu aiki.

III. Abubuwan Da Su Ke Faruwa Cewa RMUs Mai Tashin Karamin SF6 Daga Metal-Clad Switchgear

Fully Sealed Insulation, Maintenance-Free

Duka abubuwan da suke faruwa (kamar load switches, busbars) a cikin RMUs mai tashin karamin SF6 suna da kayan tashin karamin, babban nasarorin da suka fito a kan kayan tashin karamin. Wannan yana ƙara da tashin karamin mai tsabta da al'amuran masu kayan, kuma yana nuna muhimmancin tashin karamin mai tsabta. Abubuwan masu aiki zai iya ɗauki shekaru 20 da ba ake amfani ba, kuma zai iya amfani da su a cikin jirgin karamin da ba ake kontrola ba.

Compact Structure, Space-Saving

RMUs mai tashin karamin SF6 suna da kudin cikakken bayanai, kafin bayanai, kuma ana iya amfani da su a cikin wurare da suka da damar. Bayanai tana da fadin bayanai 325mm (696mm a cikin metering cabinets), wanda yake da kyau ga kudin cikakken bayanai a cikin jirgin karamin. Ana iya amfani da switchgear da kayan tashin karamin a cikin factory, kuma ana iya amfani da su a lokacin samun bayanai.

Idan a nan hukumomin da ke faruwa, RMUs mai tashin karamin SF6 suna ƙara da yawan abubuwan da suke faruwa cewa metal-clad switchgear, kuma suna ƙara da yawan abubuwan da suke faruwa cewa metal-clad switchgear. Saboda cewa abubuwan da suke faruwa a cikin RMUs mai tashin karamin SF6 suna da kayan tashin karamin, RMUs mai tashin karamin SF6 suna da muhimmanci a matsayin muhimman kayan tashin karamin waɗannan masu aiki da kuma waɗannan masu aiki.

• Amfani da KYN28 metal-clad switchgear: An buƙata 10 units, kafin bayanai 800mm da fadin bayanai 1500mm, main body area 12㎡; idan a nan hukumomin da ke faruwa (1500mm maimakon bayanai, 600mm maimakon bayanai), additional area 16.8㎡; DC screen area approximately 2㎡; total area approximately 30.2㎡.

• Amfani da SF6 RMUs: An buƙata 9 bays, kafin bayanai 325mm da fadin bayanai 750mm, main body area 2.20㎡; idan a nan hukumomin da ke faruwa 600mm maimakon bayanai (also serving as inspection passage), additional area 1.75㎡; no additional DC screen needed (self-powered protection devices available); total area approximately 3.95㎡. Compared to metal-clad switchgear, this saves 26.25㎡, demonstrating a significant advantage.

High Protection Rating, Strong Environmental Adaptability

RMUs mai tashin karamin SF6 suna da kayan tashin karamin, babban nasarorin da suka fito a kan kayan tashin karamin. Cable terminations suna da kayan tashin karamin, kuma ana iya amfani da su a cikin kayan tashin karamin. Stainless steel gas chamber na switchgear (including fuse bushings) yana da IP67 protection rating, kuma an samu nasarorin international tests for 24 hours of energized operation underwater at a depth of 5 meters.

Idan a nan hukumomin da ke faruwa, metal-clad switchgear yana da kayan tashin karamin, integrated with circuit breakers. Accident a wata unit yana iya ƙara da wadannan devices, kuma zai iya ƙara da substation-wide outage. Recent circuit breaker failures, particularly at 6–35kV levels, are frequently linked to insulation degradation in humid environments, poor sealing, insufficient creepage distance, and inappropriate materials. RMUs mai tashin karamin SF6, with their fully enclosed, outdoor-suitable design, naturally avoid these issues and maintain reliable power supply even under harsh conditions such as coastal typhoons and heavy rain, demonstrating far superior environmental adaptability.

Excellent Electrical Performance, High Technical Parameters

Circuit breaker cabinets can achieve short-circuit breaking capacities up to 25kA; load switch mechanical life reaches 5,000 operations, far exceeding the national standard requirement of 2,000 operations.

Kalmomi

Ring main units have evolved from initial closed-loop structures to open-loop configurations, progressing through oil-immersed fuse RMUs to today's advanced SF6 fully insulated RMUs. Designs have been continuously optimized, and stability has steadily improved. Compared to metal-clad switchgear, SF6 RMUs offer significant advantages in safety, unattended operation, space saving, harsh environment adaptability, electrical performance, and technical parameters. They are now widely used in municipal, metro, and building power supply systems.