Na'urar Kariya ta Farko Kaddarawa
A cikin wani labarin da ya gabata, mun gabatar da daya daga cikin samfurin na'urar kare kariya, watau, ta hanyar iri ko aji. Rubuta 1 / 2 / 3 shi ne mafi yawan SPD a cikin daidaitattun UL ko IEC. Zaka iya sake duba wannan labarin ta hanyar wannan mahaɗin:
Kuma a cikin wannan labarin, za mu yi magana game da sauran ƙididdiga wanda ba a gabatar da su a wannan labarin ba.
AC SPD & DC / PV SPD
A bayyane yake, AC SPD ta fi kowa ta DC SPD kamar yadda duk muke zaune a cikin al'umma inda yawancin AC ke amfani da wutar lantarki ta AC a halin yanzu godiya ga Thomas Edison. Wataƙila wannan shine dalilin da ya sa daidaitaccen IEC 61643-11 kawai ke aiki ne kawai don na'urar kariya ta ƙaruwar AC na ɗan lokaci mai tsawo babu daidaitaccen tsarin IEC na na'urar kariyar DC. DC SPD ta shahara kamar haɓakar masana'antar wutar lantarki mai amfani da hasken rana kuma mutane sun lura cewa shigarwar PV ta zama ruwan dare game da walƙiya kamar yadda aka saba galibi a cikin buɗaɗɗen wuri ko a saman rufin. Don haka buƙatar na'urorin kariya ta ƙaruwa don aikace-aikacen PV suna haɓaka cikin sauri a cikin shekaru 10 da suka gabata. Sashin PV shine sanannen sanannen aikace-aikace don DC SPD.
Professionalswararrun protectionwararrun masu kariya da ƙungiya sun fahimci cewa fitar IEC 61643-11 ba cikakkiyar ƙa'ida ba ce ga PV SPD kamar yadda kawai yake aiki a cikin ƙananan ƙarfin ƙarfin lantarki a ƙarƙashin 1000V. Duk da haka ƙarfin wutar lantarki na PV na iya kaiwa 1500V. Saboda haka, wani sabon mizani mai suna EN 50539-11 ya bullo don magance wannan matsalar. Hakanan IEC ta ba da amsa game da wannan yanayin kuma ta ƙaddamar da IEC 61643-31 don aikace-aikacen PV SPD a cikin 2018.
IEC 61643-11: 2011
Protectiveananan na'urori masu kariya masu ƙarfi - Sashe na 11: devicesarfafa na'urorin kariya masu haɗi da tsarin wutar lantarki mai ƙarancin ƙarfi - Bukatu da hanyoyin gwaji
IEC 61643-11: 2011 yana dacewa da na'urorin don karewa ta kan tayar da hankalin gaggawa daga cikin hasken walƙiya ko sauran raguwa. An saka wadannan na'urori don a haɗa su ta hanyar wutar lantarki na 50 / 60 Hz, da kuma kayan aiki da aka ƙayyade zuwa 1 000 V rms Ayyukan halayya, hanyoyin daidaitawa da ƙimar da aka kafa. Wadannan na'urorin suna ƙunshe da akalla guda ɗaya ba tare da haɗe ba kuma ana nufin su rage iyakokin tayi da kuma karkatar da ƙirar ruwa.
IEC 61643-31: 2018
Protectiveananan na'urori masu kariya masu ƙarfi - Sashe na 31: Bukatun da hanyoyin gwaji don SPDs don girke-girke na photovoltaic
IEC 61643-31: 2018 ya dace da Na'urorin Kariya na Kariya (SPDs), wanda aka tsara don kariyar ƙaruwa daga kai tsaye da tasirin kai tsaye na walƙiya ko wasu abubuwan wuce gona da iri. An tsara waɗannan na'urori don haɗawa zuwa gefen DC na shigarwar hotovoltaic waɗanda aka kimanta har zuwa 1 500 V DC. Waɗannan na'urori suna ƙunshe da aƙalla ɓangaren abin da ba layi ba kuma ana nufin su iyakance tashin hankali da karkatar da igiyar ruwa. Halayen aiki, bukatun aminci, daidaitattun hanyoyin gwaji da ƙimantawa sun tabbata. SPDs da ke bin wannan ƙa'idar suna keɓewa ɗaiɗaikun don ɗora su a gefen DC na janareto masu ɗaukar hoto da kuma gefen DC na masu juyawa. SPDs don tsarin PV tare da ajiyar makamashi (misali batura, bankunan ƙarfin wuta) ba a rufe su ba. SPDs tare da keɓaɓɓun shigarwa da tashoshin fitarwa waɗanda ke ƙunshe da takamaiman ƙarancin jerin tsararru tsakanin waɗannan tashar (s) waɗanda ake kira tashar tashar SPDs biyu bisa ga IEC 61643-11: 2011) ba a rufe su ba. An tsara SPDs masu dacewa da wannan daidaitaccen don a haɗa su har abada inda haɗi da cire haɗin SPDs tsayayye za'a iya yin su ta amfani da kayan aiki kawai. Wannan daidaitaccen ba ya amfani da šaukuwa SPDs.
Wannan shi ne canji a daidaitattun IEC. A cikin daidaitattun UL, ƙaddamarwar sabuwar UL 1449 4th ta gabatar da abinda ke ciki na PV SPD wadda ba ta kasance a cikin 3rd edition ba. Saboda haka, a karshe, dukkanin kungiyoyi masu zaman kansu sun kaddamar da ka'idodinsu don na'urar kare kariya ta DC / PV.
Bari mu kalli Prosurge's PV SPDs.
Don ƙarin bayani game da Kwamfutar kare kariya ta DC / PV, ziyarci wannan shafin:
Tsarin Kariyar Kariya ta Aikace-aikace
A al'ada, za a iya rarraba na'urorin haɓaka tasowa ta aikace-aikace kamar:
- SPD don samar da wutar lantarki
- SPD don Sigina
- SPD don Bidiyo
- SPD don Kamfanin sadarwa
- ect
A nan za mu ga wasu hotuna na SPD a irin wannan ƙayyadaddun.
SPD don samar da wutar lantarki
SPD don Sigina
SPD don Ethernet
SPD don Bidiyo
Ra'ayin SPD ta Tsayawa / Yanayin
Yawanci, banda rubutun 3 SPDs wanda ke kulawa da ƙananan wutar lantarki da ɗakunan ajiya kuma sunyi amfani da ƙuƙwalwa. Akwai abubuwa guda biyu: DIN-railing mounting and mounting panel. Ga hotuna na DIN-rail raya SPD da Siffofin SPD.
Za mu iya lura da fili cewa suna da farinciki.
Ƙaddarwar ta kunna SPD
DIN-rail An tsara SPD
Bari mu kalli wasu hotunansu na sakawa don mu fahimci yadda aka girka waɗannan SPDs.
Ƙaddarwar ta kunna SPD
DIN-rail An tsara SPD
Summary
A cikin wannan labarin, zamu kwashe tattaunawa game da yadda ake amfani da na'ura mai karewa. Muna magana game da samfurin AC / DC, ta aikace-aikacen da ta shigarwa. Tabbas, akwai wasu ka'idoji don tsarawa kuma yana da mahimmanci. Muna fatan cewa wannan labarin zai iya taimaka maka ka fahimci na'urar tsaro mai zurfi.