Kusarudzwa uye kuiswa kwechidziviriro chekudzivirira (SPD)

1.Kusarudza maitiro

Pakusarudza SPD yemidziyo, isu hatifanire kufunga kwete chete nzvimbo yemidziyo asiwo chinhambwe pakati peIT nemimwe michina, uye kuronga kwemagetsi grid kunofanirwa kutariswa pakutanga (senge TN-S, TT, IT system, nezvimwewo) .Kuisa iyo SPD padhuze kana kure zvakanyanya kunogona kuve nemhedzisiro inosiririsa pakudzivirira kwechigadzirwa (padhuze zvakanyanya kunokonzera mudziyo uye SPD kuti iite oscillate, kure zvakanyanya kunogona kusashanda) .

Pamusoro pezvo, kusarudzwa kweSPD kunofanirwawo kufunga nezvezvino pachigadzirwa, kuve nechokwadi chekuti zvikamu zvakasarudzwa zveSPD zvine hukuru hukuru, ongorora SPD zvinoenderana nedata rakawanikwa kubva kumugadziri uye funga nezve hupenyu hwesevhisi.surge kudzivirira mudziyo, sarudza kusachembera.

Izvo zvinofanirwa kucherechedzwa kuti iyo yakanyanya kuenderera mberi yekushanda voltage (UC) yekudzivirira yekudzivirira yakakura kupfuura iyo inoshanda voltage yechishandiso, uye kuti mamiriro aya, anogona kunge ane nguva pfupi yakawandisa (UT) inotariswa pakusarudza iyo SPD. , kana kwavepo ichi maybe then thesurge kudzivirira mudziyoinofanira kunge iine voltage yakaderera pane UC.Muchikamu chemagetsi matatu-chikamu (220/380V) , chete mimwe michina yakakosha (senge yakakosha midziyo kana magetsi inoda dziviriro) ichachengetedzwa kubva pakushanda zvakanyanya-voltage.

2.Giredhi rekudzivirira mheni uye nzvimbo yekudzivirira mheni

Izvo zvakakosha zvekusarudzwa kweSPD ndeyekuziva nemazvo iyo voltage yekudzivirira nhanho (yakasara voltage) Kumusoro, iyo yakanyanya kuburitsa ikozvino, kuve nechokwadi chekuti Up ishoma pane voltage level yemidziyo yakadzivirirwa, uye wobva wachengetedza michina.Maererano neIEC60364-4-44, IEC60664-1 uye IEC60730-1, pakuronga, maererano nemheni yemazuva ano yekugovera chati, mheni ikozvino shunt estimation formula uye mheni yazvino parameter tafura, sechinhu chakakosha pakusarudza SPD.Yekutanga kubvumidzwa kwekuvaka yemagetsi ruzivo system mheni yekudzivirira level.

Kubva ku "Building Electronic Information System Mheni Dziviriro Technical Code"GB50343-2012 kusimbisa giredhi rekudzivirira mheni rezvivakwa uye mheni yazvino paramita mushure mekutanga kurova kwemheni uye yekutanga mheni sitiroko;Iyo mheni inorova mukana weiyo mheni ikozvino amplitude inogona zvakare kuwanikwa kubva kune mheni inorova mukana curve yeyero yakayerwa mheni yazvino amplitude neavhareji yegore remabhanan'ana zuva T. E = 1-nc/n.(E inoratidza kuvharidzira kushanda zvakanaka kwemidziyo yekudzivirira, NC inoratidza huwandu hunogamuchirwa hwepagore huwandu hwekurova kwemheni kune yeruzivo system michina yakakuvadzwa nemheni yakananga uye mheni yemagetsi pulse, uye N inoratidza huwandu hwegore hunofungidzirwa hwekurova kwemheni muzvivakwa) :

(1) Giredhi A kana E yakakura kupfuura 0.98;(2) giredhi B apo E ari mukuru pane 0.90 ari pasi kana kuenzana na0.98;(3) giredhi C apo E ari mukuru pane 0.80 ari pasi kana kuenzana na0.90;(4) giredhi D apo E ari pasi kana kuti akaenzana ne0.80;

Iyo Mheni Dziviriro Zone (LPZ) inofanirwa kukamurwa kuita isiri-yekudzivirira, nzvimbo yekudzivirira, yekutanga nzvimbo yekudzivirira, yechipiri nzvimbo yekudzivirira uye yekutevera yekudzivirira nzvimbo.(mufananidzo 3.2.2) ichaenderana nezvinodiwa zvinotevera:

Yakananga Mheni Dziviriro Zone (LPZOA): hapana attenuation yemunda wemagetsi, marudzi ese ezvinhu anogona kurohwa zvakananga nemheni, inzvimbo yakavhurika yakavhurika.

Yakananga Mheni Dziviriro Zone (LPZOB): iyo electromagnetic munda haidzikisire, marudzi ese ezvinhu haawanzo kutambudzika nemheni yakananga, kuratidzwa kuzere kwenzvimbo yekudzivirira mheni.

Yekutanga Dziviriro Nzvimbo (LPZ1): semhedzisiro yenzira yekudzivirira yechivako, iyo mheni inoyerera kuburikidza neakasiyana maconductor inowedzera kuderedzwa kupfuura munzvimbo yakananga yekudzivirira mheni (LPZOB), iyo electromagnetic munda inotanga kuderedzwa uye ese marudzi e zvinhu zvinogona kusarohwa nemheni yakananga.

Yechipiri Dziviriro Nzvimbo (LPZ2): yakazotevera yekudzivirira nzvimbo yakaunzwa nekumwe kudzikiswa kweiyo induced mheni ikozvino kana electromagnetic munda.

(5) yekutevera Dziviriro Nzvimbo (LPZN): kumwe kudzikiswa kwemheni yemagetsi pulses inodiwa kuchengetedza nzvimbo yekutevera yekudzivirira yemidziyo inonzwisa tsitsi.

3.Backup dziviriro yevadziviriri vekuvhiya

Kuti udzivise SPD kubva kudunhu pfupi nekuda kwekuchembera kana kumwe kukanganisa, nzira dzekudzivirira dzinofanirwa kuiswa pamberi peSPD.Kune nzira mbiri dzinowanzo shandiswa, imwe ndiyo yekudzivirira fuse, imwe ndiyo yekudzivirira yedunhu.Mushure mevanopfuura makumi mashanu vanoronga zvemubvunzo vakawana kuti vanopfuura 80% yevanoronga vakashandisa matunhu edunhu, izvo zvinokatyamadza.Munyori anofunga kuti iko kukanganisa kuisa cheki chekudzivirira chekudzivirira, uye kuchengetedzwa kwefuse kunofanirwa kuiswa.

Kudzivirirwa kweSurge Protector ndeyekudzivirira-pfupi-yedunhu, hapana yakawandisa mamiriro, uchishandisa wedunhu breaker anogona chete kushandisa ayo matatu-kudzivirira (kana maviri-kudzivirira) mune pakarepo break basa.

Sarudzo yemidziyo yekudzivirira yevadziviriri yekuvhiya inofanirwa kuve yakavakirwa pane ipfupi-yedunhu simba paSPD mudziyo.Iyo ipfupi-yedunhu ikozvino yemidziyo yekuvhiya inodzivirira inowanzova yakakura, kana ukashandisa dunhu rebreaker, saka inoda redunhu rekutyora kwepamusoro-chikamu kugona.

Izvo zvinodikanwa kuverenga kugadzikana kwekupisa kweiyo conductor yakabatana neanodzivirira kudzivirira kana uchishandisa wedunhu breaker.Zvinoenderana neiyo pfupi-yedunhu kugona kweiyo poindi, iyo kondakita chikamu chakasarudzwa chichava chakakura kwazvo uye wiring haina kukanganisa.

Kuti unzwisise Nheyo yeSurge Protection Device, tinya paNheyo yeSurge Protection Device