Tahalilu da Kudin Karshe na Nau'ukan Daɗi a Turancin Karkashin Kofin Kirkiro

Yakin da cikakken karamin kasa a tsakiyar transa tana bayar waɗannan masu muhimmanci biyu: ta haka, zai iya haɓaka karamin kasa mai sauƙi a tsakiya, kuma a lokacin da yake da sauri, zai iya haɓaka karamin kasa mai sauƙi a wurin tsakiya; ta fice, mutane mai girma suka samun karamin kasa a funta na kasa mai kyau, wanda zai iya haɓaka karamin kasa mai sauƙi a transa kuma zai iya haɓaka abin da suka shafi. Saboda haka, karamin kasa mai kyau a tsakiyar transa suna ƙara ƙwayoyin gida a gwamnatin sub-stations. Wani littafi ya nemi ƙarin bayani game da matsalolin karamin kasa mai kyau a tsakiyar transa, kuma ya ba da bayani game da tarihin nemi bayanin matsala da kuma ƙarin bayani game da ƙarin bayanin tushen matsala a wurin.

1. Gargaɗi Game Da Karamin Kasa

Transa mai gaba na 220 kV a sub-station ita ce model SFPSZB-150000/220, an yi amfani a ranar 11 ga Nuwamba, 1986, kuma an sanya a ranar 8 ga Agusta, 1988. A baya an yi amfani da kula mai yawa don kula mai yawa, amma an yi ƙirƙira zuwa kula mai yawan jiki a shekarar 2012. A ranar 5 ga Marta, an yi ƙarin bayanin karamin kasa a tsakiyar transa mai gaba, wanda ya nuna 40 mA, wanda ya fi faru daga ƙarin bayanan da suka ƙara sabon. An nemi ƙarin bayanin karamin kasa a tsakiyar transa na ƙirƙira kula mai yawa, wanda ya nuna 41 mA. 

Tarihin da aka rubuta sun nuna cewa alama ta ƙirƙira maɗacewar ƙirƙiri mai yawa 115 Ω a ranar 27 ga Fabrairu. Ba da damar da transa mai gaba na ƙaramin kasa mai kyau a tsakiya, an yi ƙarin bayanin data online monitoring chromatographic, amma ban samu ƙaramin kasa. Masu ƙarin bayanin kula suka ƙera sampali daga transa mai gaba a gabashin rana 5 ga Marta don ƙarin bayanin chromatographic, amma data ƙarin bayanin ba ta samu ƙaramin kasa, kamar yadda ake nuna a takardun 1 don ƙarin bayanin gas chromatographic. Daga wannan, idan karamin kasa ta ƙara 100 mA, alama ta ƙirƙira za'a ƙirƙira maɗacewar ƙirƙiri don ƙirƙira karamin kasa. Daga wannan, ana nemi cewa transa mai gaba na ƙaramin kasa mai kyau a tsakiya.

2 Tatabbacin Kudurwa na Zaɓuɓɓuka

Bayanin tatabbacin kudurwa na gwiwar zaɓuɓɓukan da ke tsakiyar hanyar zuwa shekaru uku suna cikin Tabbaci 2. Wannan bayanin tatabbacin kudurwa na gwiwar zaɓuɓɓukan ya nuna cewa tatabbacin kudurwa na gwiwar zaɓuɓɓukan ta ɗaya ya zama daidai a cikin iyakoki masu yawan lura, kuma ba a samu wani abin da ya faru a cikin gas na rubutu. Amma an samu yadda tatabbacin kudurwa ya zama mai yawa, kuma babban sauti na kudurwa ya shiga matsayin muhimmanci a kan tatabbacin kudurwa.

Daga tushen masu yawan lura, ana iya tabbatar da cewa zaɓuɓɓukan ta ɗaya na samu abin da ya faru a gwiwar ta. Amma lokacin da abin da ya faru a gwiwar ta ya faru, tatabbacin kudurwa na gwiwar zaɓuɓɓukan da ya shiga matsayin muhimmanci a kan tatabbacin kudurwa ya zama daidai a lokacin da tatabbacin kudurwa ya zama mai yawa, kuma ya haifar da yadda ake yi tatabbacin kudurwa. Saboda haka, ba a samu wani abin da ya faru a cikin gas na rubutu a kan tatabbacin kudurwa na zaɓuɓɓukan.

A ranar 28 ga watan Marta, a lokacin da ake yi aiki na gaba da karamin kwarewa na turbin daɗi na ɗaya, an samu shaida cewa haraji mai kyau ta kan yadda ake kare. Masu aiki sun ce ake kara shaida cewa an samu hanyar amfani da voltage na 1,000V, wanda ya nuna shaida cewa "0". An amfani da multimeter don kara shaida cewa an samu hanyar amfani da karamin kwarewa na turbin, wanda ya nuna shaida cewa "yana haifi" da ma'ana ta "0". Wannan shaida tana bayyana cewa turbin daɗi na ɗaya yana da haraji mai kyau, musamman haraji mai zafi.

3 Sunayen Haɓaka

(1) Saboda hakan da aka iya ba da cewa harajin yana iya shahara da amfani da zafi mai hakuri, ana yi aiki a hanyar amfani da hukumar capacitor don haɓaka: Ana kara capacitor (da capacitance na 26.94 μF) zuwa 2,500 V kuma ana karfe shi har shekaru uku zuwa turbin daɗi na ɗaya. Ba da nan, an yi shaida cewa an samu hanyar amfani da shaida cewa an samu hanyar amfani da karamin kwarewa na turbin don tabbatar da cewa an yi haɓaka. Idan bai haɓaka ba, an yi karfin shaida zuwa 5,000 V don karfe shi har shekaru uku. Idan ba haɓaka ba, za a dace a yi karfe shi.

(2) Idan hukumar capacitor bai haɓaka ba, za a yi aiki a hanyar amfani da karamin kwarewa na transformer don tabbatar da rikitar haraji mai zafi da kuma haɓaka shi daga jikin.

(3) Idan ba zai iya kawo karfi da turbin daɗi na ɗaya don yi aiki a hanyar amfani da karamin kwarewa na transformer, ana iya yi aiki a hanyar amfani da current-limiting resistor don haɓaka. Turbin daɗi na ɗaya tana da JY-BTJZ core grounding online monitoring and current-limiting device wanda tana da setting masu resistance (115, 275, 600, and 1,500 Ω), wanda tana iya faɗinsu 115 Ω resistor daga cewa an samu hanyar amfani da karamin kwarewa. Ba da nan, an yi aiki a hanyar amfani da karamin kwarewa na transformer don yi shaida cewa an samu hanyar amfani da karamin kwarewa na transformer da kuma transformer oil chromatographic analysis.

Sunayen aiki a hanyar amfani da karamin kwarewa na transformer ya kasance: Karkashin karamin kwarewa na core an yi karo, kuma an yi aiki a hanyar amfani da DC high voltage generator don kara capacitor. Ba da nan, an yi aiki a hanyar amfani da insulated rod don kara lead wire zuwa core down conductor don karfe capacitor zuwa core na transformer. Ba da nan, an yi aiki a hanyar amfani da karamin kwarewa na transformer don yi shaida cewa an samu hanyar amfani da karamin kwarewa na transformer, wanda ya nuna shaida cewa 9.58 GΩ, da absorption ratio na 1.54, da ma'ana da shaida cewa an samu hanyar amfani da karamin kwarewa na transformer. Harajin yana haɓaka.

Ba da nan, an yi aiki a hanyar amfani da karamin kwarewa na transformer don yi shaida cewa an samu hanyar amfani da karamin kwarewa na transformer, wanda ya nuna shaida cewa 2 mA. Amma, real-time core grounding current monitoring device tana nuna shaida cewa 2 mA, wanda tana bayyana cewa an haɓaka haraji.