Isu tose tinoziva kuti hazvisi nyore kwazvo kusarudza chikonzero chekuchengetedza kwakakodzera. Chimiro chechigadziro chekudzivirira chinenge chisingaenzaniswi nepamera ye smartphone iyo yakajeka uye iri nyore kunzwisisa kune vanhu vakawanda. Pane zvakawanda kusanzwisisana pakusarudza SPD.

Imwe yemanzwisisiro akajairika ndeyekuti iyo hombe yekuvhiya iripo ikozvino (yakayerwa muKA padanho), iri nani SPD. Asi chekutanga pane zvese, ngatiunzei zvatiri kureva nekuwedzera kwazvino simba. Surge parizvino padanho chikamu uwandu hwehuwandu hwekuvhiya hwazvino hunogona kuvharwa (kuburikidza nechikamu chega chega chishandiso) pasina kukundikana uye hwakavakirwa paIEEE standard 8 × 20 microsecond test waveform. Semuenzaniso, kana tichitaura nezve 100kA SPD kana 200kA SPD. Tiri kutaura nezvesimba rayo rekuwedzera.

Kuwedzera kwemazuva ano kukwanisa ndeimwe yemiganhu inokosha ye SPD. Inopa chiyero chekuenzanisa chidimbu chakasiyana-siyana chokudzivirira. Uye vashandi veSSPD vanofanirwa kunyora kuwedzera kwemaitiro ezvino ma SPDs avo. Uye nokuda kwevatengi, vanonzwisisawo kuti SPD inowanikwa pamusuo webasa inofanira kuva nepamusoro-soro yepamusoro yezvinofananidza nekuenzanisa iyo SPD yakaiswa pamahofisi ebazi.

Saka pano panouya dambudziko, vanhu vazhinji vanotenda kuti 200kA SPD iri nani pane 100kA SPD. Chii chakashata nepfungwa iyi?

Kutanga, hazvitore mari. Kana iyo 200kA SPD ichidhura zvakafanana neiyo 100kA SPD uye mamwe ma parameter akafanana, iwe unofanirwa kutenga 200kA SPD. Asi chokwadi ndechekuti, 200kA SPD inodhura kupfuura 100kA modhi saka isu tinofanirwa kuverenga kuti iyo yekuwedzera dziviriro yainopa yakakodzera mari yekuwedzera.

Chechipiri, a200kA SPD haafaniri kuve nekodzero yekudzivirira kudzivirira (VPR) kupfuura 100kA SPD. VPR ndiyo inotora simba rekushandisa iyo inokonzera kumidziyo yemagetsi yakadzika.

Saka iwe uri kutaura kuti kuderera kwakadzika kwemazuva ano SPD yakakwana uye SPD ine kA yakakura inongova pfuma chete.

Nha. Ndeapi maKA iwe waunofanira kusarudza anonyanya kuvimba nechisarudzo. Pasinei nokuti inzvimbo yakachengetedzwa inowanikwa munzvimbo yakakwirira, yakasvibirika kana iri pasi inobata hukuru hweSSP unosarudza.

IEEE C62.41.2 inotsanangura zvikwata zvinotarisirwa kuitika mukati mechinhu.

  • Chikamu C: Gedhi rebasa, nzvimbo yakaoma zvikuru: 10kV, 10kA kubuda.
  • Chikamu B: Kumucheto, chikuru kupfuura kana chakaenzana ne30 ft kubva muchikamu C, nzvimbo yakashata yakanyanya: 6kV, 3kA kubuda.
  • Chikamu A: Kuwedzera kune pasi, yakakura kudarika kana yakaenzana ne60 ft kubva mumutambo C, zvisingaiti nzvimbo yakakomba: 6kV, 0.5kA kubuda.

Saka kana uine zvinhu zviri munzvimbo yakakwirira, nguva dzose zviri nani kusarudza SPD ine simba guru rekukwira ikozvino nokuti kukwira panzvimbo ino yakanyanya. Saka ini ndinokwanisa kusarudza shoma kA SPD panzvimbo yakakwirira yekutsvaga. Unyanzvi, unogona. Asi dambudziko nderokuti kudarika kA SPD kuchakurumidza kusvika kumagumo ehupenyu uye iwe unofanira kutenga nekuisa zvakare imwe itsva. Mari yekuchengetedza ingave yakakwirira kudarika SPD pachayo.

Saka inounza imwe chikonzero chekushandisa kA SPD yakakura. Chikwata chikuru chepA SPD chinogara kwenguva refu uye saka kuchengetedza nguva uye mari yekuchengetedza. Semuenzaniso, dzimwe nzvimbo dzema telecom dziri munzvimbo dziri kure kana kunyange mumakomo ekumusoro. A SPD kuchengetedza nzvimbo yakadaro inofanira kuva neupenyu hurefu kwenguva refu, huri nani kuva nekuchengetedza kweupenyu pasina.

pfupiso

Muchikamu chino, tinokurukura nyaya yechipfuva chemazuva ano pakusarudza SPD. Kuwedzera kwepamusoro kwepamusoro kwekwanisi yepamusoro SPD haiti kupa mhepo yakadzivirira kudzivirirwa (VPR) uye dzimwe nguva haifaniri hako iwe paunotora mari yakawedzerwa.

Asi kana hupfumi hwako huri panzvimbo yakakwirira kana basa rekuchengetedza rakaoma kana kuti rinodhura kuitisa, ipapo imwe yakakwirira kA SPD inofadza.