Ngā Tawhā Matua me ngā paerewa whakamātautau o ngā Pūrere Tiaki Ngaru (SPD)

Pūrere Ārai Ngaru (SPD): He taputapu e whakamahia ana hei whakawhāiti i ngā ngaohiko tere me te huri i ngā iahiko ngaru. Ko ngā SPD te nuinga o te wā e whakamahia ana i roto i ngā pūnaha tohatoha ngaohiko-iti me ngā pūnaha mōhiohio hei tiaki i ngā ngaohiko uira, ngā ngaohiko whakawhiti, ngā pāorooro uira hikohiko (LEMP), me ngā pāorooro whakararuraru hikohiko (EMI). Hei tiaki taha ngaohiko-tiketike i aua ngaohiko ngaru, ka whakamahia ngā ārai ngaru hei utu.

I. Ngā Tawhā Matua o ngā Pūrere Tiaki Ngaru (SPD)

1. Ngaohiko Whakahaere Tonu Mōrahi (Uc): Ko te pūngao matua-waenga-tapawhā (RMS) te hiko DC rānei ka taea te whakamahi tonu ki te aratau tiaki o te SPD. Koinei te hiko whakatauranga o te SPD. Ka pā te uara Uc ki te roa o te ora o te SPD me tōna taumata tiaki hiko. Mā te whiriwhiri i tētahi uara Uc teitei ake ka roa ake te ora o te hua engari ka piki ake anō hoki te hiko toenga, he mea kino ki ngā taputapu kua tiakina.

2. Iahiko Tukunga Ingoa (In): Ko te iahiko tihi o te ngaru iahiko 8/20μs ka taea e te SPD te tu atu. Ka whakamahia tēnei tawhā mō ngā whakamātautau Akomanga II, ā, hei paearu whakarite mua hoki mō ngā whakamātautau Akomanga I me II. Ka tautuhia e ngā paerewa SPD he raupapa o ngā uara In, ā, ka tīpakohia e ngā kaihanga he taumata In e tika ana mō te whakamātautau. Kia paahitia e te SPD te whakamātautau, ka tohua mana tōna uara In hei taumata kua tīpakohia.

3. Te Auaha Tukunga Mōrahi (Imax) i ngā Whakamātautau Akomanga II: Ko te iahiko tihi o te ngaru iahiko 8/20μs ka taea e te SPD te whakahaere. Ahakoa he rite te whakamāramatanga ki te In, ka whakaratohia e ngā paerewa SPD he raupapa motuhake mō te In me te Imax, me te Imax > te In mō te akomanga kotahi. Ko te paahi i tētahi whakamātautau i tētahi taumata In kua hoatu, kāore e kī taurangi ka paahi te SPD i te taumata Imax e rite ana, nā te mea he rerekē ngā āhuatanga whakamātautau (te rahi o te iahiko me te maha o ngā iri).

4. Iahiko Ārai (Iimp): Ko te kaha o te SPD ki te tu atu i te ngaru iahiko uira 10/350μs, e tohuhia ana e ngā tawhā e rua: te iahiko tihi (Ipeak) me te utu (Q). Ka whakamahia tēnei tawhā mō ngā whakamātautau Akomanga I.

5. Taumata Parenga Ngaohiko (Ki Runga): E mōhiotia ana hoki ko te ngaohiko toenga, e pā ana tēnei ki te ngaohiko puta noa i te SPD ina rere te āhua ngaru kua tohua o te iahiko tihi mā roto i taua mea i muri i te whakahohenga. Me iti ake te Up i te ngaohiko ātete o te taputapu tiakina. Ko te GB50343-2012 *Waehere Hangarau mō te Tiaki Uira o ngā Pūnaha Mōhiohio Hiko Whare* e tohu ana i ngā taumata ngaohiko ātete nekehanga mō ngā wāhanga rerekē o ngā pūnaha tohatoha ngaohiko-iti. Ko te ngaohiko ātete nekehanga kua whakatauria (Uw) o te taputapu, e whakaratohia ana e te kaihanga, e tohu ana i tōna kaha ārai ki ngā ngaohiko nui. Nō reira, me whakarite te kōwhiringa SPD kia Up

II. Ngā Whakamātautau e Hāngai ana mō ngā Pūrere Tiaki Ngaru (SPD)

Kei roto i ngā wāhanga o runga ake nei ngā whakamātautau Akomanga I me te Akomanga II. Kei raro nei ngā tikanga whakamātautau:
1. Whakamātautau Akomanga I: I whakahaerehia mā te whakamahi i te iahiko tukunga ingoa (In), he irihiko ngaohiko 1.2/50μs, me te iahiko irihiko mōrahi Iimp (ngaru iahiko uira 10/350μs). Mena ko te utu i whakawhitia i roto i te 10 ms ko Q, ko te iahiko tihi I tihi = 0.5Q.
2. Whakamātautau Akomanga II: I whakahaerehia mā te whakamahi i te iahiko tukunga ingoa (In), he ine ngaohiko 1.2/50μs, me te iahiko tukunga mōrahi Imax (ngaru iahiko 8/20μs).
3. Whakamātautau Akomanga III: I whakahaerehia mā te whakamahi i tētahi ngaru huinga, e tautuhia ana ko te ngaohiko ara iahiko tuwhera 1.2/50μs (Uoc) me te iahiko ara iahiko poto 8/20μs (Isc) i hangaia e tētahi kaihanga ngaru huinga 2Ω.

Kāore ēnei kāwai whakamātautau i te whakarōpūtia, nō reira kāore e taea te whakarite tika. Ka taea e ngā kaihanga te whiriwhiri i tētahi akomanga whakamātautau hei whakamana. Heoi, i roto i te hoahoa hiko o te whare, me tutuki te kōwhiringa o ngā SPD i whakamatautauria i raro i te Akomanga I, Akomanga II rānei ki:

IEC 61024: E pā ana ki te tiakitanga haumaru o te tangata mai i ngā pānga uira i roto i ngā whare, e kapi ana i te kōwhiringa o ngā taumata tiakitanga o te pūnaha tiaki uira (LPS).

IEC 61312: E aro ana ki te tiakitanga mai i ngā pāorooro hiko uira (LEMP), tae atu ki ngā whakaritenga mō te ārai whare, te whakapūmau whenua, me te hononga pūmau.

IEC 62305: Ka whakarato aratohu mō te hoahoa i ngā pūnaha tiaki uira, me te whakakotahi i ngā mātāpono whānui me ngā whakaritenga mō te tiaki uira.