Maimaituka na Iya Kula da Bayanai na RMUs: Tarihi, Masu Nuna, da Bicin Haushe
1 Tattalin Noma na Maida
Nauyin Masu Gida Ta Hanyar Tattalin Noma na Maida
A Watan Oktooba na shekarar da dama, wanda mutanen yakin zafi da noma suka nemo darajar da ya fi yawa cikin alamar siffofin kasa (PD) a 10kV ring main units (RMUs) da aka yi a gaban da su. An sami amfani da darajinsu masu yawa (Transient Earth Voltage (TEV) da take ruwa min 18 dB, da kuma ultrasonic readings da take ruwa min 20 dB). Daga cikin waɗannan RMUs, mafiya ne suna fito daga wata mai sarrafa. Saboda haka, an yi tattaunawa ta hanyar 15 RMUs daga wata mai sarrafa a kan gaban da su, wadanda suka bayar da abubuwan da suka faruwa a 7 RMUs.
Daga binciken maƙashe, ana iya duba shiga da asibiti a kan tsakiyar kable da alamomi da ke sautin kafin kula a T-connectors. Idan an fada tsakiyar kable, akwai kasashen noma masu yawa a wasu RMUs. Ana iya duba shiga da asibiti a kan jidhantar plug, babbar gaba na surge arrester, dukbinta epoxy bushing, da kuma dukbinta plug cap. Duk da haka, interfacen bayan badarwar plug da cap an rarrabe da mutum, wanda yana nuna cewa takardun cin kadan ba ta da shirya. Wannan yana ba da damar ci gine na madara, wanda yake sa shiga, da kuma ya yi lafiya ga jiki da ƙarin shirya a interfacen, wanda yana haɗa da shiga da yawa a dukbinta. Ba a nan lokacin da an tabbatar da sabon komopantai, an yi tattalin noma na biyu a waɗannan RMUs, inda an sami cewa amfani da PD suka zaɓe a cikin haddadin da ake da shi.
2 Bayanin Tattalin Noma
Idan kana bukaci cewa RMU na da PD, yana bukaci nau'in "gane," "sakita," "bin," da "tattauna." Tattalin yau da kullum ana yi da haka:
Ƙaramin Inganci A Bisa Tattaunawa: Duba cewa tattaunawan PD na da shi da yawa. Zaka magana da flashlite da kayan littattafai da suka bukata. Bincika tsari a kan RMU don inganta hankali ga mutanen da kayayyakin. Duba cewa sunan da lambar zahiri suka duba da shi a kan record, da kuma cewa labaran labarai suka duba da shi a kan har kabilu.
Bayanin Da Ya Faruwa ("Gane," "Sakita," "Bin"): Bin cewa pressure na gas na RMU yana da shi. A baya tattaunawa, gane cewa akwai na'ura mai yawa daga RMU; idan kana sami na'ura mai yawa, ƙare da yanayin da kuma tattauna wajen inganta. A baya kunna kabilu, sakita cewa akwai nasararsu mai yawa; idan kana sami nasararsu mai kula, faɗi RMU wajen tattauna. Idan RMU na da maƙasha, amfani da flashlite don bin cikin ita. Noma a kan tsakiyar kable yana iya haɗa da asibiti mai yawa a T-connector da ke sautin kafin kula, da kuma plug insulating yana iya haɗa da asibiti mai kula da ke sautin kula.
Tsarin Tattaunawa:
Tattauna Mai Tsawon Yanzu: Mai tsawon yanzu yana nufin signal da ake tattauna a kan dorin metal na 10kV high-voltage room. Saboda signals na PD na high-frequency suna haɗa da electromagnetic waves wanda suka haɗa zuwa ƙarshen duka, transient earth voltages suka haɗa da ground metal surfaces hatta a wurare da energy. Tattauna mai tsawon yanzu a baya tattaunawa RMU yana ba da ƙarin bayanin PD a kan high-voltage room.
Tattauna TEV: Saka sensor a kan surface na metal na cabinet da kaɗan. Saboda wavelength na high-frequency PD signals yana da yawa, wannan yana haɗa da shiga. A measuring instrument, wannan yana haɗa da signal amplitude da ya fi yawa daga strong zuwa weak, wanda yake taimaka wajen bayyana source na discharge.
Tattauna Ultrasonic: Yi tattauna a kan gaps between cabinet doors don ƙarin sensitivity to airborne sound waves.
Bayanin Tattaunawa: Bin data na tattaunawa da kuma bayyana cewa ake yi da shi bayan judgment criteria na Shenzhen Bureau RMU Partial Discharge Testing Work Instruction. Tabbatar da Table 1 don evaluation standards na RMU partial discharge testing.
