Nigute ushobora guhitamo ibice byingenzi bihinduka kuri Retrofit Porogaramu

AWG	Diameter (in)	Diameter (mm)
4/0	0.4600	11.684
2/0	0.3648	9.266
1/0	0.3249	8.252
2	0.2576	6.543
4	0.2043	5.189
6	0.1620	4.115
8	0.1285	3.264
10	0.1019	2.588
12	0.0808	2.053
14	0.0641	1.628

Kwishyiriraho hamwe nabayobora benshi bahujwe hamwe bisaba kwitabwaho bidasanzwe. Idirishya rya CT rigomba kuba rinini bihagije kugirango rizenguruke bundle yose. Uwitekakuzenguruka kuzengurutse insinga zifatanije ziteganya byibuze ubunini bwidirishya.

Impanuro:Idirishya rya CT rigomba guhuraku buryo buhebuje hafi ya kabili cyangwa busbar. Guswera birashobora gutuma kwishyiriraho bigorana, mugihe aperture irenze urugero irashobora kuzana amakosa yo gupima. Intego ni nziza ikwiye idafite umwanya wubusa.

Kugena Igipimo ntarengwa kiriho

Nyuma yo kwemeza ibikwiye kumubiri, intambwe ikurikira ni uguhitamo neza amperage. Ibipimo byambere bya CT bigomba kuba birenze ibyateganijwe byateganijwe byumuzenguruko ukurikiranwa. Uru rutonde ntabwo arirwo rugendo rwumuzenguruko ahubwo ni amperage irambye iremereye umutwaro uzashushanya.

Umutekinisiye agomba kubara ibishobora kwiyongera mu mutwaro w'amashanyarazi. Iyi myitozo irinda gukenera gusimburwa bihenze nyuma.

Inganda zisanzwe imyitozo ni uguhitamo CT hamwe nigipimo cyibanze aricyo125%yumutwaro ntarengwa uhoraho. Iyi buffer 25% itanga umutekano wokwaguka kazoza kandi ikabuza CT kuzura.

Kurugero, niba umuzenguruko ntarengwa wikurikiranya ari 80A, umutekinisiye yabaze byibuze CT igipimo nk80A * 1.25 = 100A. Muri iki kibazo, 100A Gutandukanya Core Ihinduranya Byaba amahitamo akwiye. Gushira ahabona CT birashobora gutuma umuntu yuzura, bikavamo gusoma nabi kandi bishobora kwangirika. Ibinyuranye, kugenzura gukomeye birashobora kugabanya ubunyangamugayo kurwego rwo hasi, bityo kubona uburinganire bukwiye ni urufunguzo.

Guhuza Ibisohoka Ibimenyetso Kuri Meter yawe

Umutekinisiye amaze kwemeza ubunini bwumubiri, umurimo utaha ni ukureba niba amashanyarazi ahuza. Gutandukanya Core Yubu Ihindura ikora nka sensor, ihindura ibyibanze byibanze mubimenyetso byo hasi. Iki kimenyetso gisohoka kigomba guhuza neza nibyo metero yimbaraga cyangwa igikoresho cyagenewe kwakira. Umukino utari wo uzana amakuru atariyo, cyangwa rimwe na rimwe, kwangiza ibikoresho.

Gusobanukirwa Ibisubizo rusange CT (5A, 1A, 333mV)

Impinduka zubu zirahari hamwe nibimenyetso bisanzwe bisohoka. Ubwoko butatu bukunze kuboneka mubisabwa retrofit ni 5 Amp (5A), 1 Amp (1A), na milivolt 333 (333mV). Buriwese ufite ibiranga bitandukanye kandi bikwiranye nibintu bitandukanye.

5A na 1A Ibisubizo:Ibi nibisanzwe bigezweho. CT itanga icyerekezo cya kabiri kigereranwa nuburyo bwibanze. Kurugero, 100: 5A CT izatanga 5A kumurongo wa kabiri mugihe 100A inyuze mumashanyarazi abanza. Mugihe 5A yabaye amateka yamateka, 1A ibisubizo bigenda byamamara kubikorwa bishya.

War Kuburira Umutekano Wibanze:CT ifite 5A cyangwa 1A ibisohoka ni isoko yubu. Umuzunguruko wacyo wa kabiri ugombanta na rimwegusigara ufunguye mugihe umuyobozi wibanze afite ingufu. Gufungura icyiciro cya kabiri birashobora kubyarahejuru cyane, voltage iteje akaga(kenshiibihumbi n'ibihumbi), biteza akaga gakomeye. Iyi miterere irashobora kandi gutera intangiriro ya CT gushyuha no kunanirwa, birashoboka gusenya CT no kwangiza ibikoresho bifitanye isano. Buri gihe menya neza ko itumanaho rya kabiri rigufi cyangwa rihujwe na metero mbere yo guha ingufu uruziga rwibanze.

Uwitekaguhitamo hagati ya 1A na 5A ibisohokaakenshi biterwa nintera igera kuri metero nibisobanuro byumushinga.

333mV Ibisohoka:Ubu bwoko bwa CT butanga ibimenyetso byo murwego rwo hasi. Izi CT zisanzwe zifite umutekano kuko zifite imitwaro irwanya imitwaro ihindura umuyaga wa kabiri kuri voltage. Igishushanyo kirinda impanuka ya voltage nyinshi ijyanye no gufungura-1A cyangwa 5A CT. Ikimenyetso cya 333mV nigipimo gisanzwe kuri metero zigezweho za digitale.

Ubundi bwoko bwa sensor ,.Rogowski Coil, nayo itanga milivolt-urwego rusohoka. Ariko, birasaba integer itandukanye kugirango ikore neza. Igiceri cya Rogowski kiroroshye kandi cyiza mugupima imigezi miremire cyane cyangwa mubisabwa hamwe nintera yagutse, ariko mubisanzwe ntibikwiriye imitwaromunsi ya 20A.

Kugenzura Metero Yinjiza Ibisabwa

Amategeko yibanze yo guhitamo CT nuko ibisohoka CT bigomba guhuza na metero yinjiye. Metero yagenewe kwinjiza 333mV ntishobora gusoma ikimenyetso cya 5A, naho ubundi. Ubu buryo bwo kugenzura burimo kugenzura urupapuro no gusobanukirwa igitekerezo cyumutwaro.

Ubwa mbere, umutekinisiye agomba kumenya ubwoko bwinjiza bwerekanwe nuwakoze metero. Aya makuru asanzwe acapirwa kumurongo wibikoresho cyangwa birambuye mubitabo byubushakashatsi. Iyinjiza izavugwa neza nka 5A, 1A, 333mV, cyangwa ikindi giciro cyihariye.

Icya kabiri, umutekinisiye agomba gusuzuma igiteranyoumutwarokuri CT. Umutwaro ni umutwaro wose uhujwe na CT ya kabiri, upimye muri Volt-Amps (VA) cyangwa Ohms (Ω). Uyu mutwaro urimo:

• Imbere yimbere ya metero ubwayo.
• Kurwanya insinga ziyobora ziva kuri CT kugera kuri metero.
• Inzitizi y'ibindi bikoresho byose bihujwe.

Buri CT ifite aigipimo ntarengwa cy'umutwaro(urugero, 1VA, 2.5VA, 5VA). Kurenza uru rutonde bizatera CT gutakaza ukuri. Nkuko imbonerahamwe ikurikira ibigaragaza ,.kwinjiza impedance ya metero biratandukanyecyane kubwoko, nikintu kinini cyingenzi cyaumutwaro wose.

Inzitizi ntoya ya metero 5A yagenewe kuba umuzenguruko muto-mugihe, mugihe impedance ndende ya metero 333mV yagenewe gupima voltage idashushanyije amashanyarazi akomeye.

Impanuro:Buri gihe ujye ubaza ibyakozwe na CT na metero. Inganda nyinshi ziratangaimbonerahamweurutonde rwerekana neza imiterere ya CT yemerewe gukoreshwa hamwe na metero yihariye cyangwa inverter. Kwambukiranya inyandiko ni inzira yizewe yo kwemeza neza iyinjizwa.

Kurugero, uruganda rukora inverter rushobora gutanga imbonerahamwe yerekana ko “Model X” ya Hybrid inverter ihuza gusa na metero ya “Eastron SDM120CTM” hamwe na CT ifitanye isano. Kugerageza gukoresha CT itandukanye, niyo hamwe nibimenyetso nyabyo bisohoka, birashobora gukuraho garanti cyangwa biganisha kuri sisitemu mbi.

Guhitamo Icyiciro Cyukuri Kubisabwa

Nyuma yo gupima CT no guhuza ibisohoka, umutekinisiye agomba guhitamo icyiciro gikwiye. Uru rutonde rusobanura uburyo umusaruro wa kabiri wa CT ugereranya ibyibanze byibanze. Guhitamo icyiciro gikwiye byemeza ko amakuru yakusanyijwe yizewe bihagije kubyo yagenewe, haba kuri fagitire zikomeye cyangwa kugenzura rusange. Guhitamo bidakwiye birashobora gutuma habaho itandukaniro ryamafaranga cyangwa ibyemezo byimikorere.

Gusobanura ibyiciro bya CT

Ibipimo mpuzamahanga, nkaIEC 61869-2, gusobanura CT ibyiciro byukuri. Ibipimo ngenderwaho byerekana ikosa ryemewe ku ijanisha ritandukanye rya CT igezweho. Itandukaniro ryibanze riri hagati yamasomo asanzwe nayandi yihariye, ibyiciro bikomeye.

• IEC 61869-2 isanzwe igaragaza imikorere ikenewe haba ikosa ryikigereranyo kiriho hamwe no kwimura icyiciro.
• Icyiciro 'S' cyihariye CTs (urugero, Icyiciro 0.5S) gifite imipaka ikosa ntarengwa kurwego rwo hasi ugereranije na bagenzi babo basanzwe (urugero, Icyiciro 0.5).
• Kurugero, kuri 5% yikigereranyo cyagenwe, Icyiciro 0.5 CT gishobora kugira a1.5% ikosa, mugihe Icyiciro 0.5S CT kigomba kuba muri 0,75%.

Ukuri kurimo ibirenze ubunini bwubu. Harimo kandiicyiciro cyo kwimurwa, cyangwa ikosa ryicyiciro. Nibihe byubukererwe hagati yibyibanze byubu byambere hamwe nibisohoka bya kabiri. Ndetse ikosa rito ryicyiciro rishobora guhindura imbaraga zo kubara.

Igihe cyo Guhitamo Fagitire-Urwego na Gukurikirana-Urwego Rwukuri

Porogaramu itegeka neza ibisabwa. CT muri rusange iri mubyiciro bibiri: fagitire-yo kugenzura no kugenzura.

Urwego rwo kwishyuzaCTs (urugero, Icyiciro 0.5, 0.5S, 0.2) nibyingenzi mubikorwa byinjira. Iyo isosiyete ifasha cyangwa nyirinzu yishyuye umukode kugirango akoreshe ingufu, ibipimo bigomba kuba byukuri. A.icyiciro gito cyamakosa kirashobora gutera amakosa akomeye mugupima imbaraga, cyane cyane muri sisitemu ifite imbaraga nke. Ibi bisobanurwa muburyo butaziguye kumafaranga.

Ibipimo by'ingufu bidahwitse biturutse ku ikosa ryicyiciro nabyo birashobora gutera ibibazo birenze kwishura. Muri sisitemu y'ibyiciro bitatu, irashobora kuganisha kuriimizigo idahwitse hamwe nibikoresho bya stress. Birashobora no gutera kurinda kurinda imikorere mibi, guteza umutekano muke.

Urwego rwo gukurikiranaCTs (urugero, Icyiciro 1.0 no hejuru) birakwiriye gucunga ingufu rusange. Abatekinisiye babikoresha mugukurikirana imikorere yibikoresho, kumenya imiterere yimitwaro, cyangwa kugenera ibiciro imbere. Kuri iyi mirimo, urwego ruto rwo hasi rwibisobanuro biremewe. Guhitamo iburyoImpinduka zubuiremeza ko ubunyangamugayo bwamakuru buhuye nubukungu bwimishinga.

Kugenzura Ibice Byanyu Byibanze Byahindutse Kubijyanye numutekano nibidukikije

Igenzura rya nyuma ryumutekinisiye ririmo kwemeza ibyemezo byumutekano no gusuzuma ibidukikije. Izi ntambwe zemeza abatoranijweGutandukanya ibyingenziikora neza kandi itekanye mubuzima bwa serivisi yose. Kwirengagiza iri genzura bishobora gutera kunanirwa imburagihe, guhungabanya umutekano, no kutubahiriza amabwiriza y'akarere.

Kugenzura UL, CE, nibindi byemezo

Impamyabumenyi z'umutekano ntizishobora kuganirwaho. Bemeza ko ibicuruzwa byageragejwe n’urwego rwigenga kugira ngo byuzuze umutekano wihariye n’imikorere. Muri Amerika ya Ruguru, umutekinisiye agomba gushakisha ikimenyetso cya UL cyangwa ETL. Mu Burayi, ikimenyetso cya CE ni itegeko.

Ikimenyetso cya CE cyerekana kubahiriza amabwiriza y’ubumwe bw’ibihugu by’i Burayi, nkaAmashanyarazi Mucyo. Gukoresha iki kimenyetso, uwabikoze agomba:

1. Kora isuzuma ryuzuye ryibyago kugirango umenye kandi ugabanye ingaruka zishobora kubaho.
2. Kora ibizamini bihuye ukurikije ibipimo bihujwe.
3. Tanga icyemezoItangazo ryo guhuza, inyandiko yemewe ifata inshingano zo kubahiriza ibicuruzwa.
4. Komeza ibyangombwa bya tekiniki, harimo gusesengura ibyago n'amabwiriza yo gukora.

Buri gihe ugenzure ko ibyemezo ari ukuri kandi ukurikize icyitegererezo cyaguzwe. Uyu mwete ukwiye urinda ibikoresho n'abakozi.

Gusuzuma Ibidukikije

Ibidukikije bifatika bigira ingaruka zikomeye kuramba kwa CT. Umutekinisiye agomba gusuzuma ibintu bitatu byingenzi: ubushyuhe, ubushuhe, nibihumanya.

Ubushyuhe bukora:Buri CT ifite igipimo cyihariye cyo gukora. Moderi zimwe zikora kuva-30 ° C kugeza kuri 55 ° C., mugihe abandi, nkibikoresho bimwe bya Hall Effect, barashobora kubyitwaramo-40 ° C kugeza kuri + 85 ° C.. Umutekinisiye agomba guhitamo igikoresho cyagenwe nubushyuhe bwibidukikije byahantu hashyizweho, kuva ijoro rikonje cyane kugeza kumunsi wizuba ryinshi.

Kurinda Ubushuhe no Kwinjira (IP): Ubushuhe bwinshi hamwe n’amazi ataziguyeni iterabwoba rikomeye.Ubushuhe burashobora gutesha agaciro insulasiyo, korora ibyuma, kandi biganisha kumashanyarazi. UwitekaKurinda Ingress (IP)yerekana igikoresho cyo kurwanya umukungugu n'amazi.

Igipimo cya IP65 akenshi kirahagije kumurongo rusange-ugamije. Ariko, ibikoresho byo hanze birashobora gusaba IP67 kugirango birinde kwibiza. Kubidukikije bikaze, nko gutunganya ibiryo, anIP69KGutandukanya ibyingenzi bihinduka ni ngombwa.

Ikirere cyangirika:Ahantu hegereye inkombe cyangwa inganda zishobora kugira umunyu cyangwa imiti mukirere. Ibi bintu byangiza byihutisha iyangirika ryamazu ya CT nibigize imbere. Mubihe nkibi, umutekinisiye agomba guhitamo CT hamwe nibikoresho bikomeye, birwanya ruswa kandi bifunze.

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Umutekinisiye yemeza ko retrofit igenda neza ikurikira urutonde rwanyuma. Ibi biremeza ko Impinduka zibanze zihindura ibyifuzo byose bikenewe.

• Ingano ya Window:Bikwiranye na diameter.
• Amperage:Kurenza umutwaro ntarengwa wumuzunguruko.
• Ikimenyetso gisohoka:Ihuza metero yinjiye.
• Icyiciro cy'ukuri:Bikwiranye no gusaba (kwishura no gukurikirana).

Umutekinisiye agomba buri gihe kugenzura ibyatoranijwe Byatandukanijwe Byibintu byahinduwe neza hamwe nibikoresho byo gupima. Gushyira imbere icyitegererezo gifite ibyemezo byumutekano bikwiye mukarere birinda abakozi nibikoresho.

Ibibazo

Bigenda bite iyo umutekinisiye ashyira CT inyuma?

Umutekinisiye ushyira CT inyuma asubiza inyuma polarite. Ibi bitera metero kwerekana imbaraga zasomwe nabi. Kubipimo nyabyo, umwambi cyangwa ikirango kumazu ya CT bigomba kwerekana icyerekezo cyubu, kugana umutwaro.

Umutekinisiye arashobora gukoresha CT imwe nini kubayobora benshi?

Nibyo, umutekinisiye arashobora gutambutsa abayobora benshi binyuze muri CT imwe. CT izapima net (vector sum) yimigezi. Ubu buryo bukora mugukurikirana imbaraga zose. Ntibikwiye gupima imikoreshereze yumuzunguruko.

Kuki gusoma 333mV CT gusoma nabi?

Gusoma nabi akenshi biva muburyo budahuye hagati ya CT na metero. Umutekinisiye agomba kwemeza metero yagenewe kwinjiza 333mV. Gukoresha 333mV CT hamwe na metero iteganya ko 5A yinjiza bizatanga amakuru atariyo.

Impinduka zubu zikeneye isoko yimbaraga zayo?

Oya, bisanzwe pasitoro CT ntisaba imbaraga ziva hanze. Isarura ingufu ziva mumashanyarazi ya magnetiki yapima. Ibi byoroshya kwishyiriraho kandi bigabanya insinga zingana. Rukuruzi rukora, nkibikoresho bimwe bya Hall Effect, birashobora gukenera imbaraga zifasha.