6.9 MVA Zig Zag Mai Canjawa-22/ KV|Australia 2025

01 Gabaɗaya

1.1 Bayanin Aikin

A 2025, a6900 kVA earthing transfomeran kai Australia don waniAikin tashar tashar 132/22 kV, inda aiki tsayayye da sarrafa kuskure ya kasance mahimmanci; A cikin wannan tsarin, yana aiki tare da haɗin kai tare da babban wutar lantarki, ba don canjin makamashi ba amma don ba da damar amintaccen ƙasa mai tsaka-tsaki na hanyoyin sadarwa a ƙarƙashin yanayin ci gaba da ɗaukar nauyi.

Babban gidan wuta yana canja wurin wuta. The earthing transformer yana bayyana grounding.
An ƙirƙira shi daidai da IEC 60076, wannan naúrar - uku (22 kV, 50 Hz, ƙungiyar vector ZN) tana kafa madaidaicin tsaka-tsakin wucin gadi yayin kiyaye ƙarancin sifili{4} jere, yana barin ingantacciyar ƙasa tsaka tsaki na tsarin tasfofi; tare da sanyaya ONAN da murfin mai na ma'adinai, yana kuma tallafawa ɗan gajeren lokaci{5}} ƙimar tsaka tsaki na yanzu na 6350 A na daƙiƙa 10, yana tabbatar da ɓarkewar ɓarna na yanzu da ingantaccen tsarin aikin ƙasa.

1.2 Zig{1} Zag Transformer a cikin Tsarin Grounding

A cikin tsaka-tsakin tsarin ƙasa na tsarin wuta, ana amfani da tasfofi na zig{0}zag don ƙirƙirar madaidaicin tsaka-tsakin wucin gadi a cikin cibiyoyin sadarwa marasa tushe ko delta. Ana raba iskar su zuwa kashi biyu daidai kowane lokaci kuma ana haɗa su a cikin tsarin zig{2}}zag, yana barin sifili{3}} jerin halin yanzu ya gudana tare da ƙaramin ƙarfi{4} yawanci kusan 10 Ω- ba tare da shaƙewa ba. Wannan ya sa su dace da na'ura mai tsaka-tsakin ƙasa, musamman lokacin da aka haɗa su da coil na arc, yana tabbatar da ingantacciyar lada na yanzu da ingantaccen tsarin ƙasa.

1.3 Ƙimar Fasaha

6900kVA zig zag taswira ƙayyadaddun bayanai da takaddar bayanai

1.4 Zane

6900kVA zig zag taswira zane da farantin suna

02 Masana'antu

2.1 Kori

Tushen wannan taswirar zig zag ya dogara ne akan tsarin gaɓoɓin lokaci guda uku- ta amfani da hatsi{1}}ƙarfan siliki mai daidaitacce, an haɗa shi a hankali don tabbatar da rarraba ruwan maganadisu iri ɗaya; ba kamar na al'ada earthing transformers inda sifili - jeri jeri da'awar yawo ta hanyar yoyo hanyoyin, wannan zane yana iyakance juzu'i a cikin ainihin, goyon bayan barga aiki a karkashin tsarin grounding yanayi da kuma canza wutar lantarki.

2.2 Kanfigareshan iska

Iskar tana ɗaukar tsarin taswirar zig zag, kowane lokaci ya kasu kashi biyu daidai gwargwado kuma ya raunata a saɓanin kwatance a kan babban gaɓa ɗaya; wannan tsarin yana ba da damar sifili - jerin igiyoyin ruwa su soke ta hanyar maganadisu, yayin da har yanzu suna ci gaba da ci gaba da ci gaban wutar lantarki don ɓarna a halin yanzu{1}}maɓallin aiki na na'urar taswira ta zigzag da ake amfani da ita a aikace-aikacen ƙasa. Idan aka kwatanta da shimfidu na iska na al'ada, sifili{3}}matsalolin da ke da alaƙa yana raguwa sosai a ƙirar taswirar zig zag.

2.3 Tanko

An yi tankin mai jujjuyawar ƙasa da faranti na ƙarfe da aka ƙera tare da ingantaccen ƙirar tsari, dacewa da sufuri, shigarwa, da yanayin kuskure; an ƙera shi don sabis na waje inda ƙarfin injina da kwanciyar hankali na zafin jiki ke da mahimmanci don aikin mai sauya fasalin zig zag.

Mahimman abubuwan fasaha sun haɗa da:
• Juriya na wuce gona da iri na ciki har zuwa 35 kPa
• Cikakken injin jure iyawa ba tare da nakasawa ba
• Zazzabi ƙasa ƙasa ko daidai da digiri 70 a yanayin yanayi na digiri 40
• Yarda da Seismic dangane da AS 1170.4 (kp × Z=0.2)

An rufe tankin kuma an ƙarfafa shi da tsari na dogon lokaci{0}.

Hakanan yana taimakawa ƙayyadaddun igiyoyi masu yawo da dumama gida, yana goyan bayan tsayayyen aikin taswirar zig zag yayin ci gaba da aiki.

2.4 Maɓalli Maɓalli

Don tabbatar da aiki mai aminci kuma abin dogaro, mai sauya fasalin zigzag yana haɗa abubuwan kariya da sa ido da yawa, kamar yadda aka nuna a cikin tsarin:

• Buchholz gudun ba da sanda don gano kuskuren ciki da saka idanu akan tara iskar gas
• Akwatin tashar sarrafa jiki mai canzawa don sigina da keɓaɓɓiyar wayoyi
• Alamar matakin mai don babban mai kula da mai
• HV bushings da HV tsaka tsaki bushing (24 kV class) domin tsarin dangane
• Ƙarƙashin ƙasa don ƙwanƙwasa ƙasa
• Na'urar taimako na matsi don kariyar wuce gona da iri

An tsara kowane bangare don tallafawa aikin barnar na'urar taswira ta zigzag a cikin aikace-aikacen ƙasa, yayin da ke tabbatar da amintaccen amsa kuskure da tsayin daka{0}} a cikin yanayin filin.

Ma'anar Matsayin Mai don Babban Mai kiyayewa

Akwatin Kula da Jiki Mai Canjawa

Buchholz Relay

HV Neutral Bushing BF'IC-24/630

HV Bushing BF'IC-24/630

Ƙarshen Bushings don Core da Clamp

03 Shiryawa da sufuri

3.1 Shiryawa

• Insulation Nauyin Mai: 1750 kg
• Girman Mai Insulation (a digiri 25): 1966 L
• Nauyin sassa masu aiki: 3700 kg
• Jimlar Nauyin (Ciki da Mai): 6300 kg
• Nauyin sufuri: 6850 kg

3.2 Shipping

04 Yanar Gizo da Takaitawa

Transformer na zig zag da aka kawo don aikin tashar tashar 132/22 kV a Ostiraliya yana aiki azaman mafita mai fa'ida a cikin tsarin tsarin wutar lantarki mai fa'ida, yana tabbatar da ingantaccen yanayin tsarin inda ake buƙatar ma'anar tsaka tsaki a matsakaici{2}}wararrun hanyoyin sadarwa.

Yana aiki azaman kayan tallafi na tsari na ƙirar tsarin ƙasa, yana haɓaka babban mai canza wutar lantarki da kiyaye kwanciyar hankali a ƙarƙashin kuskure da yanayin kaya na yau da kullun.