He aha ngā vantehi o tētahi Kapa Matua Māwhiti Tōpaha Rua

Ko te kapa hiko heke e noho ana ko te tuara whenua i te whai mōhio, tiaki, me te tohatoha i te hiko i roto i nga punaha tohatoha hiko heke (10kV-35kV). He wāhanga matua tēnei o ngā whatunga hiko taone, ngā whakapakanga hangarau, ngā pokapū hokohoko, me ngā kāinga noho. Ka wehe ia i ngā raru o ngā punaha tohatoha tawhito pērā i te nui rawa o ngā taputapu, te uaua o te tiaki, me te iti ake te whakapono. Hei tauira, ko GPSwitchgear e tīmata ana ki ngā rautaki taputapu hiko, ā, e hoahoa ana i ngā punaha kapa hiko heke kia pai ake ai te mahi i te mara. Ēnei ngā take matua e hiahiatia ana kia mau ngā kapa hiko heke nei ki ngā punaha tohatoha hiko hou.

Ka Whakapai a te Kapa Hiko Heke i te Whakarato Hiko

Ko te whakarato hiko kua whakapūmau te matua take mō tētahi punaha tukatuka, ā, ka pono tonu te kāwai hiko kōpae (medium voltage ring main unit) ki tēnei āhuatanga mā tōna hoahoa "kōhao hiko". Arā i te kore e rerekē ana ngā punaha tukatuka noa (i reira ka taea e tētahi harwarekenga anake te whakakorea i te hiko mō ngā kaiwhakamahi katoa i muri ake), ko te kāwai hiko kōpae e hono ana ki tētahi whatunga hiko porowhita—mēnā ka pakaru tētahi wāhanga o te tapa, ka huri aunoa te kāwai ki tētahi punaha hiko takotoranga atu mā te kāwhe tāpoi tauwā, i runga i tana kāwhe tāpoi ranei. Hei tauira, i tētahi rohe nohoanga kei te kāwai hiko kōpae, kāore he pōkai hiko mēnā ka pakaru tētahi tapa arataki; ka huri tere te kāwai i te hiko mai i te tātāranga takirua, ka whakahoki anō te tukatuka i roto i ngā sekene. Ka whakapai ake hoki a GPSwitchgear i te pono o te kāwai hiko kōpae mā ngā matērihia whakamarumaru kounga teitei (pērā i te kikorangi SF6, i te whakamarumaru taupiri rānei) hei whakarereke i te waimarie, te paru, i te kōngahu rānei i ngā wāhanga o roto. Ko tēnei hoahoa ka whakarite kia pana tonu te mahi o te kāwai hiko kōpae ahakoa ngā tikanga pīroiroi, ka whakaiti i ngā pāsene kore whakaritenga umanga hiko 60-70% i ngā pouaka tukatuka tawhito.

Whāinga Rūrihi me ngā Tauine Iti Ake me ngā Kapa Matiraumua Mātaiaro

Ko ngā purongo tukatuka māke e whakamahia ana i ngā wāhi nui rawa atu, ā, e herea ana ki ngā kātata nui, ka piki ake ngā utu mō te whenua me te hanga. Ka nui ake ngā utu ina āhua pīro ngā take mō te whakamahi whenua, ā, he uaua rawa tēnei i ngā rohe tāone. Ko te rerekētanga iti me te hoahoa takirua o te kapa tukatuka māke e āwhina ana i te wāhi, ā, e taea ai ngā tohu maru. E 70-80% iti ake te wāhi e hiahiatia ana, ā, e 3 mita whatianga te wāhi e tukuna ana, e hāngai ana ki ngā kawenga. Ko ētahi atu tauira o te taputapu ōrite e tuku ana i te 2-3 mita whatianga wāhi, ā, e hiahiatia ana te 1-3 mita whatianga wāhi. Ko te hoahoa takirua o te kapa tukatuka māke e āwhina ana i te hui tūwāhi kia mutu i te wā poto ake me tētahi hoahoa iti ake. Anō nei, ko ngā kapa hou a GPSwitchgear e tīmata ana i te 1-2 rā, i te mea ko ngā taputapu tuku tawhito e 5-7 rā te roa. Ka penapenaia te 30-40% o ngā utu hanga nā te kaha o te kapa tukatuka māke ki te huripoki i te tukanga—whakahōu i ngā tukutuku tawhito. Ka penapenaia te 30-40% o ngā utu hanga nā te kaha o te kapa tukatuka māke ki te huripoki i te tukanga—whakahōu i ngā tukutuku tawhito. He tino utu-whai hua te kapa tukatuka māke nā te penapena i ngā utu tukanga me ngā utu hanga.

Whakapai ake i te Haumātaotao Whakahaere me te Mahi Tiaki

Ina ko te ahumahi tukatuka hiko, kua whakauruhia e te kapa matihiko waenga maha āhuatanga maha rerekē hei whakamarino i te haumātao o te kaiwhakamātau me te taputapu. Ko te timatanga, ka whakamahia e ia te hangarau whakamātata hermetic. Ko te kapa matihiko waenga maha a GPSwitchgear e whakamahi ana i te pahu SF6, i te hangarau whakamātata epoxy taupiri ranei, e pupuri ai i ngā wāhanga hiko tikangia i waho o te taiao. Mā tēnei ara, ka aukatia ngā araki hiko me ētahi atu mōrearea ahi e hua ana i ngā wāhanga hiko tuuturu. Ko te hoahoa anō hoki ka whakapai ake i te itinga o te patunga hiko takotoria. I tua atu i te haumātao o te hoahoa, ko te kapa kei te tūhono ki te hangarau mōhiohio mātāmira. Ko ngā kaiwhakarato kei roto e tātari ana, e mōhio ana i ngā wāhi mahana, ngā pēhitana hau (i ngā tauira SF6), me ngā rahi hiko/pēhita, ka whakamōhiotia tika ai te pokapū whakahaere mō ngā whakaritenga o ngā pēhitana hau me ngā mahana. Ka taea e ngā kaiwhakamātau te whakarāpopototanga mōhio, haumaru, me te tawhito kauwae kore noa atu ki te kapa. Mō te tiaki, ko te hoahoa o te kapa matihiko waenga maha kua koi kia pupuri i te hau SF6, ka poto ake ngā wā tono tiaki ki te 5-8 tau. Ko ngā kapa taupiri taupiri kaore he iti noa ngā here tiaki māmā, ā, ka wehe i ngā wā tiaki 1-2 tau o ngā taputapu hiko takotoria. I runga i te katoa, kaite kīanga te utu mahi me te utu matērihi 50-60%, ka heke ai te utu tōpū mō ngā umanga hiko.

Whai mōhio ki te Maruaroa o te MV RMU i te Tukutuku Hara kaha

Me whai maru me te māmā ake ngā punaha tukutuku hiko kē, hei whakauru i ngā uta hōu pērā i ngā wāhi tāuta EV me ngā toronga ki ngā rohe hōu. Nō te hoahoa takirua o te MV RMU, ka māmā ngā toronga, ā, ka taea te whakauru i ngā taputapu hou pērā i ngā kapa kawe hiko hou, ngā taputapu tiaki, i ngā taputapu tirotiro rānei ki te kapa tuatahi kaua ko ngā panonitanga nui. Hei tauira, ina tāuta ana tētahi whare hanga hōu ki tētahi papamahure paraikete, ka taea e GPSwitchgear te tuku i tētahi kapa kawe hiko hou, te whakauru ki te MV RMU kei reira, ā, ka taea tēnei i ētahi haora anake engari kāore i te huringa i te punaha katoa. Ka taea te huri i te mahi a te RMU ki ētahi wāhi e rere ke ana. Kei runga i ētahi atamira hiko (10kV, 20kV, 35kV) te mahi, ā, ka taea te tiki i waenganui i te 2 ki te 8 ngā kapa kawe hiko, ā, kei roto hoki ngā arataki mō te tāwhai hiko me te herenga whenua. I hoahoa ai ēnei taputapu kia ōrite ki ngā here o te tukutuku hiko mō ngā tāone, ngā paraikete, me ngā rohe mātātoko mātātoko. Tautoko hoki te MV RMU i ngā hangarau whatuna hiko. Hei tauira, mā te whakauru i ngā taputapu GPSwitchgear ki ngā punaha SCADA ka taea te whakahaere i te tukutuku hiko mā te tawhiti, te kohikohi raraunga, me ngā huringa kawenga aunoa. Ko tēnei mahi e whakapakari ana i ngā punaha tukutuku whatuna hiko hōu.

Tuatahi, ko te kapa poka tīkaha waenga e whai ana i ngā poukai ā-roto iti te uaua (pērā i ngā rārangi paru hiko mataara). Ka iti rawa ai te hinga hiko i te wā o te tuku hiko—kei raro i te 0.5% te tere hinga hiko o te kapa poka tīkaha waenga a GPSwitchgear, i te tuarangi mai i te 1-1.5% ki ngā taputapu tīwhana takotoranga. He mano kawatinihaora hiko pea te pau e tiakina ana i te tau mō tētahi kapa anake. Tēnei mahi ū ki te arataki i te whakauru i ngā rama whenua hiko hou (ngā tāone rā, ngā tāone hau) me te kapa poka tīkaha waenga. Ko te whakahaere tere i te taputapu, ko te whakahaere pūmau i te tohatoha hiko e āwhina ana i te rama hiko kākāriki e rerekē haere ana, ā, ko te whakahaere māmā i te tohatoha hiko me te taumata hiko he mea matua herekia ki te whakauru haumaru i te hiko kākāriki tīkaha waenga ki te whatonga. Hei tauira, ka taea e tētahi kapa poka tīkaha waenga te whakahaere i te hiko o tētahi tāone hau e hono tūmau ana ki te whatonga kia rite ki te tere o te hau, i te wā e tiki ana ngā kaiwhakamahi i raro i te hiko tūhonohono. He mea nui tēnei whakauru hei tautoko i ngā punaha hiko kākāriki tīkaha waenga mō te heitiki iho i te karbona o te ao, ā, ka noho hei whakaurunga haumaru te kapa poka tīkaha waenga ki ngā punaha hiko ū.