Tadace a Filomi da Kafofin da Ƙarfafin da Take Da Amfani Don Kiransu Masu 220 kV na Gida

Makaranta ita ce mafi yawan amfani a cikin zanen gajerar da mutane suka amfani. A tattalin arziki, makarantar da dama suna aiki da gwamnati masu damar kafin kawo aiki. Suna da muhimmanci a wanda aiki na tattalin arziki, aiki da gwamnati, da kuma aiki na gwamnati. Saboda haka, makaranta suna da darajar da ya fi saniwa da ainihin aiki, bincike, da kuma aiki na gwamnati.

Prinsipin aiki da kuma tsari na makaranta suna da kyau. Abin da ke sahihiya shi shine babu fahimtar kawo damar kananan gajerar. Makaranta suna iya kawo ko kwallon damar kafin damar ba da aiki ko damar da ta da yawan adadin kadan (kafin < 2 A). Makarantar da dama suna da kategoriyoyi biyu saboda yanayi na aiki: na tsohon rana da na tsohon rana. Kafin kana nufin tsari na kayan aikatauwar, suna da kategoriyoyi uku: na tsofu, na biyu, ko na uku.

Tsohon rana na 220 kV na gwamnati na aluminum shine tsohon rana mai ainihi mai sauƙi mai damar kafin kawo aiki da take da aiki har zuwa shekaru 19. Yana ba damar kafin kawo aiki ga electrolytic cells da 200 kA, kuma yana ba damar kafin kawo aiki, aiki da kuma damar kafin kawo aiki ga wasu gwamnatin da suka da aiki a cikin kamfanin. Tsohon ranar 220 kV na tsohon rana yana amfani da GW7-220 makarantar da dama na tsohon rana—na uku, na tsofofi, na uku, 50 Hz, da tsohon rana.

Daga lokacin da aka fara amfani a shekarar 1998, makarantar da dama na tsohon rana suna ba damar kafin kawo aiki don kawo damar kafin kawo aiki da kuma kawo damar kafin kawo aiki ga abubuwan da suka fitowa (kamar tsohon rana da gwamnati da suke da aiki) da kabilu masu damar kafin kawo aiki. Ba da shekaru 19 da ake amfani, an samun yadda ake yi aiki a cikin ma'adannin makaranta (yanayi na yanayi na tushen damar kafin kawo aiki) da ya kai hanyar yanayi na tushen damar kafin kawo aiki (kafin 150°C), wanda yake da muhimmanci a tushen damar kafin kawo aiki. Wannan batu yana iya haifar da 220 kV makaranta, wanda yake da muhimmanci a tushen damar kafin kawo aiki, kafin kwallon damar kafin kawo aiki, ko kuma kafin kwallon damar kafin kawo aiki—wanda yake da muhimmanci a tushen damar kafin kawo aiki da kuma tushen damar kafin kawo aiki.

Saboda haka, an samun bayanai da kuma kula da sababbin aiki, wanda yake da muhimmanci a tushen damar kafin kawo aiki. An yi aiki da kuma an yi aiki da kuma an yi aiki don aiki da kuma an yi aiki.

Tsari da Prinsipin Aiki na GW7-220 Makarantar da Dama na Tsohon Rana

Makaranta tana da tsari na uku, na tsofofi, na tsohon rana, na kayan aikatauwar, na gwamnatar da damar kafin kawo aiki (kafin abin da ba a yi aiki), da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Makaranta tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Makaranta tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Makaranta tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

Bincike da Sababbin Yadda Ake Yi Aiki a Cikin Ma'adannin Makarantar da Dama na Tsohon Rana

Tsohon ranar 220 kV na tsohon rana na gwamnati na aluminum tana da 24 sets na GW7-220 makarantar da dama da suka amfani don biyu na 220 kV na tsohon rana, rectifier units #1–#4, da kuma power transformers #1 da #2, da suka da 144 stationary contacts. A lokacin da ake yi aiki, an samun yadda ake yi aiki a cikin ma'adannin makaranta (yanayi na yanayi na tushen damar kafin kawo aiki) da ya kai hanyar yanayi na tushen damar kafin kawo aiki (kafin 70°C) a cikin ma'adannin makaranta. Bayanan bayanai suna nuna cewa daga Janairu zuwa Disamba 2014, an samun 13 unplanned outages saboda yadda ake yi aiki a cikin ma'adannin makaranta—da ya kai hanyar yanayi na tushen damar kafin kawo aiki (kafin 1.08 incidents per month).

An yi aiki da kuma an yi aiki da kuma an yi aiki da kuma an yi aiki, wanda yake da muhimmanci a tushen damar kafin kawo aiki:

• Har da alama da suka yi aiki da kuma kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

• Har da alama da suka yi aiki da kuma kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

• Har da alama da suka yi aiki da kuma kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

• Har da alama da suka yi aiki da kuma kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar. Kayan aikatauwar tana da kayan aikatauwar da suka yi aiki da kuma kayan aikatauwar.

Retrofit and Preventive Measures for Stationary Contacts

• Interconnect the originally independent finger contacts using flexible copper straps to increase effective contact area between moving and stationary contacts.

• Koyar da kawo na gaba da koyar da kafuwar hanyar zuwa don zama da rahotanni masu kyau da kuma yin haɗin kwallon daidai.

• Saka silver plating zuwa ma'adantattun da kuma ma'adantattun da ba suka yi waɗa ba.

• Saka solid lubricant zuwa ma'adantattun don kammala friction da kuma saukar oxidation.

• Yin monitoring na temperature mai sararin infrared, musamman a babbukan ma'adantattun, da kuma tattaunawa database na temperature.

• Yin inganci da kalmomi da kuma soja da koyar da disconnectors.

Bayanin Da aka Tafiya da Amfani Da Amsa

Bayanin da aka samu daga monitoring na farko:

• A lokacin da yawan jikin sama (17°C) da kuma yanayin aiki, zaɓi na temperature ta ma'adantattun ya ƙasance daga ~23°C (wanda ba a yi amfani da shi) zuwa ~19°C (wanda an yi amfani da shi).

• Bayanin da aka samu a lokacin da kalmomi sun nuna cewa abubuwan da suka faruwar da arc-damage a ma'adantattun wanda an yi amfani da shi suna da tsari mafi yawan da suka faruwar da arc-damage a ma'adantattun wanda ba a yi amfani da shi.

Hadi karin ranar, an yi amfani da 5 disconnector units (30 ma'adantattun da ba suka yi waɗa ba) ne. Wannan babban fahimta tana daɗe da ci gaba a kan duk GW7-220 disconnectors a 220 kV outdoor switchyard na kamfanin.

Takaitaccen Bayani

Daga binciken da aka yi a kan yawan ƙarin da ke faruwar da su a ma'adantattun GW7-220 outdoor AC high-voltage disconnectors, an yi amfani da tsari masu amfani ga ma'adantattun da ba suka yi waɗa ba. Wannan takamata tana daɗe da tsari masu amfani ga kwallon tabbacin tasiri da kuma kula-kula. Wannan tana daɗe da muhimmanci ga amfani, kalmomi da kuma koyar da GW7-220 disconnectors a gaba.