Kwihlabathi eliqhutywa ngokuchanekileyo lokulinganisa umbane kunye nezixhobo zephaneli, ibhloko yesiphelo esithobekileyo yenza umsebenzi obalulekileyo ongangqinelani nobukhulu bayo obuncinci bomzimba. Iibhloko zesiphelo sokuvala uvavanyo—ngakumbi ezo ziyilwe malunga nolwakhiwo lwesokethi yebhanana eyi-4mm—zizinto ezibalulekileyo kwiiphaneli zokulinganisa, iisekethe zokukhusela ezikhuselayo, kunye neesekethe zesibini ze-transformer (CT). Kwiinjineli zokuthenga, abakhi beepaneli, kunye nabavelisi bezixhobo abafumana ezi zinto, ukuqonda iingcaciso zobugcisa zeebhloko zesiphelo sokuvala uvavanyo kubalulekile ekwakheni iinkqubo zombane ezinokuthenjwa nezizinzileyo.

Eli nqaku libonelela ngesikhokelo sobugcisa esibanzi sokuvavanya iibhloko zesiphelo sokuqhawula izixhobo ezine-4mm banana socket, izinto ekufuneka ziqwalaselwe kuyilo lwesekethe yetransformer yangoku kwiiphaneli zokulinganisa, kunye nesakhelo esisebenzayo sokuvavanya nokukhetha i- vavanya umthengisi weebhloko zesiphelo sokuqhawulaNokuba uchaza izinto zokwakha iiphaneli ezintsha, uphucula ukufakelwa kwemitha ekhoyo, okanye ufuna izinto zokwakha izixhobo zokuqala, esi sikhokelo siya kukunceda wenze izigqibo ezinolwazi.

Indima yeeBhloko zeTerminal Disconnect zoVavanyo kwiiPaneli zeMetering

Iiphaneli zokulinganisa zisebenza njengeziko lemithambo-luvo lokujonga usasazo lombane. Zigcina izixhobo—ii-ammeter, ii-voltmeter, ii-wattmeter, kunye neemitha zamandla emisebenzi emininzi—ezibonelela abaqhubi ngokubonakala ngexesha langempela ekusebenzeni kweenkqubo zabo zombane. Kwiindawo ezintathu zokufakelwa kwe-AC, ii-current transformers zehlise i-high primary currents ukuya kwi-proportional secondary currents (ngesiqhelo i-1A okanye i-5A) enokulinganiswa ngokukhuselekileyo zizixhobo kunye nee-protection relay.

Imfuneko ebalulekileyo yoyilo lweesekethe zesibini ze-CT kukuba akufuneki zivuleke ngelixa umsinga ugeleza kwi-primary. I-CT secondary evulekileyo ivelisa i-voltage ephezulu kakhulu kwii-terminal zesibini njengoko i-magnetic core ye-transformer igcwala, idala ingozi enkulu yokhuseleko kubasebenzi kunye nokutshatyalaliswa kwe-CT ngokwayo. Yonke isekethe yesibini ye-CT kufuneka iphele kumthwalo—okanye i-short-circuits—ngamaxesha onke.

Iibhloko zesiphelo sokudibanisa uvavanyo zisombulula le ngxaki ngobuchule. Zibonelela ngendlela yokususa izixhobo kunye neemitha kwisekethe yesibini ye-CT ukuze kuvavanywe okanye kutshintshwe ngelixa kugcinwa ukuthembeka kwendlela yesekethe emfutshane. Xa ibhloko yokudibanisa uvavanyo ikwindawo eqhagamshelweyo, i-CT yesibini ilayishwa ngesixhobo. Xa ibhloko ifuduselwa kwindawo yokuvavanya, ibha yokufinyeza ibotshelelwa ngokuzenzekelayo evala i-CT yesibini, ivumela isixhobo ukuba sisuswe okanye sitshintshwe ngaphandle kokushiya i-CT yesibini ivuliwe.

Uqwalaselo lweSokhethi yeBanana ye-4mm

Isokethi yebhanana eyi-4mm yifomathi yokudibanisa esemgangathweni kwishishini yezixhobo zovavanyo nokulinganisa. Iiplagi zebhanana ezineeshafts ezibubanzi obuyi-4mm zisetyenziswa kakhulu kwiimitha zephaneli, ii-oscilloscopes, izixhobo zamandla ze-DC, kunye noluhlu olubanzi lwezixhobo zovavanyo. Ubungakanani be-4mm bumele indawo entle phakathi kokuqina koomatshini kunye nobuncinci—bukhulu ngokwaneleyo ukubonelela ngoqhagamshelo oluthembekileyo, olungenakumelana kakhulu kodwa luncinci ngokwaneleyo ukulingana noyilo lweebhloko zesiphelo ezinoxinano oluphezulu.

Vavanya iibhloko zesiphelo sokuqhawula izixhobo ezineesokhethi zebhanana eziyi-4mm zenza imisebenzi emibini ngaxeshanye:

1. Zibonelela ngendawo yokumisa eqinileyo nehlala ihleli kwiingcingo ze-CT ezingaphakathi kwiphaneli. Isokethi yebhanana yamkela iplagi yebhanana kwiintambo zesixhobo, nto leyo eyenza uqhagamshelo olukhuselekileyo nolulinganisekayo.
2. Ziquka indlela yokufinyeza esebenza ngokuzenzekelayo xa umsebenzi wokunqamla usebenza. Oku kungaba yi-sliding shorting bar, i-plug-in shorting bridge, okanye indlela yokufinyeza esebenza nge-lever kuxhomekeke kuyilo lwemveliso ethile.

Olu sebenziso lubini lwenza ibloko yesiphelo sovavanyo ibe sisisombululo esincinci nesinomtsalane esithatha indawo yoko bekuya kufuna izinto ezininzi: iibloko zesiphelo ezahlukeneyo, i-shorting busbar, kunye nee-shorting links ezenziwe ngesandla.

Kutheni iiSekethe zeTransformer zangoku zifuna iiBhloko zeTerminal ezikhethekileyo

Iibhloko zesiphelo esiqhelekileyo azifanelekanga kwiisekethe zesibini ze-CT. I-CT secondary isebenza kwi-voltage ephantsi kakhulu phantsi kweemeko eziqhelekileyo—ngesiqhelo ii-volts ezimbalwa ngexesha lokuhamba kombane okuqhelekileyo—kodwa inokuphuhlisa amawaka ee-volts ukuba i-secondary ivuliwe. Le voltage ibonakala kuzo zonke ii-terminal zesibini ngoko nangoko xa i-CT inikwe amandla kwaye i-secondary ivuliwe.

Ibhloko yesibini yesiphelo se-CT kufuneka ihlangabezane neemfuno ezahlukeneyo ezikhethekileyo:

Ukuthembeka kokunciphisa: Indlela yokufinyeza kufuneka ibonelele ngokufutshane okuncinci rhoqo kwiiterminal ze-CT secondary. Nakuphi na ukuxhathisa kwindlela yokufinyeza kuya kubangela ukulinganisa okungalunganga kwaye kunokukhokelela ekufudumaleni kobushushu kwindawo yokufinyeza. Indlela yokufinyeza kufuneka ibe nokuxhathisa okungaphantsi kwe-10 milliohms phantsi kwazo zonke iimeko.

Ukumelana neDielectric: Ibhloko yesiphelo kufuneka imelane nombane ophezulu onokuvela kuzo zonke iiterminal zayo ukuba i-secondary ivulwe ngempazamo. Iimfuneko eziqhelekileyo ze-IEC zeebhloko zesiphelo sesibini se-CT zihlala zifuna umbane omncinci we-dielectric omelana nombane we-2 kV AC umzuzu omnye.

Ukwenza kunye nokwaphula amandla: Ezinye iindlela zoyilo zifuna ukuba ibhloko yesiphelo ikwazi ukwenza nokuphula umsinga wesibini we-CT ngaphandle komonakalo. Kwii-CT zokulinganisa eziqhelekileyo (1A okanye 5A yesibini), oku ngokubanzi kungaphakathi kwamandla eebhloko zokudibanisa uvavanyo eziyilwe kakuhle, nangona iinkcukacha zomenzi kufuneka zijongwe.

Ukhuseleko kwiNkqubo engalunganga: Kwiibhloko zesiphelo sokudibanisa uvavanyo eziyilwe kakuhle, indlela yokufinyeza isebenza ngokuzenzekelayo ngexesha lokusebenza kokufinyeza, okwenza kube nzima ukushiya ngempazamo i-CT yesibini ivuliwe. Olu luphawu olubalulekileyo lokhuseleko oluhlula iibhloko zokudibanisa uvavanyo ezifanelekileyo kwizisombululo ezicwangcisiweyo kusetyenziswa iibhloko zesiphelo ezisemgangathweni kunye neekhonkco zokufinyeza ngesandla.

Iinkcukacha zoBugcisa eziphambili ze-4mm Banana Socket Test Disconnect Blocks

Xa kuvavanywa iibhloko zesiphelo sokudibanisa uvavanyo kwizicelo zephaneli yokulinganisa, iinkcukacha zobugcisa ezilandelayo kufuneka zijongwe ngononophelo:

Ixabiso langoku: Kwisekethe zesibini ze-CT, umsinga wesibini olinganisiweyo (ngesiqhelo yi-1A okanye i-5A) uchaza umlinganiselo wamandla oqhubekayo webhloko yesiphelo. Ibhloko yesiphelo kufuneka ibe nomlinganiselo wamandla olinganayo ubuncinane nomsinga wesibini we-CT, kunye nomda owaneleyo wobushushu ukuze isebenze ixesha elide.

I-Voltage elinganisiweyo: Ibhloko yesiphelo kufuneka ilinganiswe ngevolthi ephezulu enokuvela kuzo zonke iiterminal zesibini phantsi kwayo nayiphi na imeko, kuquka iivolthi ezibangelwa zimpazamo okanye iitransienti. Kwiisekethe zesibini ze-CT kwiinkqubo zokusasazwa eziqhelekileyo, umlinganiselo we-250V okanye i-400V AC/DC uhlala wanele.

Ukumelana neSekethe emfutshane: Nangona iisekethe zesibini ze-CT zingasoloko ziphantsi kwe-high fault currents (i-CT ngokwayo ithintela i-secondary fault current ngenxa ye-source impedance yayo), i-terminal block kufuneka ikwazi ukumelana noxinzelelo loomatshini kunye nobushushu be-maximum prospective fault current kwisekethe ngexesha elilinganisiweyo.

Ukumelana noQhagamshelwano: Ukumelana kwee-contacts ezithwala umbane kwindawo eqhagamshelweyo kufuneka kube kuncinci ukuze kuthintelwe impazamo yokulinganisa kwizicelo zokulinganisa ngokuchanekileyo. Iibhloko zesiphelo se-premium zifikelela kukumelana kokunxibelelana okungaphantsi kwe-1 milliohm.

Ukuqina koomatshini: Iindlela zokuqhawula kunye nokufinyeza kufuneka zilinganiswe ubuncinane kwimijikelo yokusebenza—ngesiqhelo imisebenzi engama-500 ukuya kwi-1,000—ngaphandle kokwehla kokusebenza kokufinyeza.

Izinto zokuvala ubushushu: Umzimba webhloko yesiphelo kufuneka wenziwe ngezinto zokukhusela ezisebenzisa amandla aphezulu e-dielectric ezingamelaniyo nokulandelela, ezithintela ilangatye, kwaye zilinganiswe ngokwezinga lobushushu bokusebenza kwesicelo. I-Polyamide (PA) kunye ne-polyphthalamide (PTA) zizinto eziqhelekileyo ezikhethwayo kwiibhloko zesiphelo zesigaba semizi-mveliso.

Uqwalaselo lokuFakelwa kwePhaneli: Iibhloko zesiphelo ziyafumaneka kwiindlela zokucwangcisa zenqanaba elinye kunye nelenqanaba eliphindwe kabini. Iibhloko zenqanaba eliphindwe kabini zibeka iisekethe ezimbini ezizimeleyo ngokuthe nkqo, zivumela iisekethe ezingaphezulu ukuba zibekwe kububanzi bephaneli obunikiweyo. Uqwalaselo olufanelekileyo luxhomekeke kuyilo lwephaneli kunye nenani leesekethe ze-CT.

Indlela yokukhetha umthengisi we-Test Disconnect Terminal Block

Ukukhetha umthengisi webhloko yokuvala umva ofanelekileyo kubaluleke njengokukhetha icandelo elifanelekileyo. Umthengisi onobuchule akaboneleli nje kuphela ngemveliso efanelekileyo ngokobuchwephesha kodwa nenkxaso yobugcisa, ukuhambelana kokufumaneka, kunye namaxwebhu awenza kube lula ukuhlanganiswa kuyilo lwephaneli yakho.

Nazi iindlela eziphambili zokuvavanya ababoneleli beebhloko zokuvala umbane ezisetyenziswa kuvavanyo:

Uluhlu lweeMveliso kunye nokuMiselwa kweMigangatho: Ngaba umthengisi unikezela uluhlu olubanzi lweebhloko zesiphelo sokudibanisa uvavanyo ezihambelana nezinto eziqhelekileyo kunye nobukhulu bokusika iiphaneli? Ukubekwa emgangathweni kuluhlu lomthengisi kuvumela abakhi beephaneli ukuba badibanise ukuthengwa kwabo nomthengisi omnye ngelixa befikelela kuluhlu olupheleleyo lwezilinganiso kunye noqwalaselo olufunekayo kwiiprojekthi ezahlukeneyo.

Isiqinisekiso soMgangatho: Ngaba umthengisi uneziqinisekiso zolawulo lomgangatho ezifanelekileyo ezifana ne-ISO 9001? Kwizinto zombane ezisetyenziswa kwizicelo zokulinganisa nokukhusela, uvavanyo lohlobo lomntu wesithathu kunye nesiqinisekiso esenziwe yilebhu evunyiweyo kunika isiqinisekiso sokuba iimveliso zisebenza njengoko kuchaziwe. Khangela ubungqina bovavanyo lohlobo lwe-IEC lwamandla e-dielectric, amandla okuthwala umbane, kunye nokusebenza okufutshane.

Amaxwebhu oBugcisa: Umthengisi onobuchule ubonelela ngeenkcukacha-manani ezipheleleyo zobugcisa eziquka imizobo enobukhulu, iimpawu zombane, ubungakanani obucetyiswayo bokusika iiphaneli, kunye nesikhokelo sokusetyenziswa. Olu xwebhu lubalulekile kubayili beephaneli kunye neenjineli zokuthenga ukuze bachaze ngokuchanekileyo kwaye badibanise izixhobo.

Ubuchule bokwenza ngokwezifiso: Nangona iimveliso ezisemgangathweni zihlangabezana neemfuno ezininzi zephaneli yokulinganisa, ezinye izicelo zifuna uqwalaselo olungaqhelekanga—inani elithile leepali, indlela yokunciphisa eguquliweyo, okanye ezinye izinto ezisetyenziswayo kwiimeko ezinzima. Umthengisi onobuchule bokuvelisa ngaphakathi kunye nobuchule bobunjineli unokubonelela ngeendlela ezahlukeneyo ngaphandle kweendleko kunye nezohlwayo zexesha lophuhliso olupheleleyo lwenziwe ngokwezifiso.

Ukufumaneka kunye nexesha lokufumana isibonelelo: Iiprojekthi zephaneli yokulinganisa zihlala zineshedyuli yokuhambisa enzima. Qinisekisa ukuba umthengisi ugcina isitokhwe esaneleyo see-standard configurations ukuxhasa amaxesha amafutshane okukhokela. Kwii-odolo ezinkulu okanye ii-configurations ezingezizo ezisemgangathweni, qonda ixesha lokuvelisa kunye nokuhambisa ngaphambi kokuba uzibophelele.

Izaphulelo zexabiso kunye nomthamo: Kwabakhi beephaneli abathenga iibhloko zesiphelo sovavanyo lokudibanisa ngobuninzi obuhambelanayo kwiiprojekthi ezininzi, umthengisi onokubonelela ngamaxabiso akhuphisanayo aneshedyuli yesaphulelo sobuninzi obucacileyo unika inzuzo enkulu kwezorhwebo.

Uxhaso lobuchwepheshe: Xa umakhi wephaneli edibana nesicelo esinzima—iindlela ezingaqhelekanga zokumisela iiphaneli, amaqondo obushushu aphezulu, iimpawu ezithile ze-CT—inkxaso yobugcisa evela kumthengisi wecandelo inokuba ngumahluko phakathi kwengxaki esonjululweyo kunye nokulibaziseka kweprojekthi. Vavanya ukuzimisela komthengisi ukubonelela ngenkxaso yesicelo, ubungakanani besampulu, kunye nokubonisana ngobunjineli.

Imeko zokusetyenziswa: Apho kusetyenziswa khona iiBloko zoVavanyo lweSokhethi yeBanana eziyi-4mm

Ezi meko zilandelayo zesicelo zibonisa ububanzi beemeko zokusetyenziswa kweebhloko zesiphelo sovavanyo kunye neesokhethi zebhanana ze-4mm kwiimeko zephaneli yokulinganisa:

Iiphaneli zoSasazo lwaMandla oMzi-mveliso: Izakhiwo zokwenza izinto ezinemithwalo engaphezulu kwe-100 kW zihlala zineephaneli zokulinganisa ezibonisa i-kW, i-kVAR, amandla, kunye nokusetyenziswa kwamandla ngexesha langempela. Iisekethe zesibini ze-CT kwezi paneli zisebenzisa iibhloko zokudibanisa uvavanyo ukuvumela ukulinganiswa rhoqo kunye nokutshintshwa kwezixhobo ngaphandle kokuphazamisa amandla kwiibhasi eziphambili.

Ukulinganisa isiphumo se-Solar PV Inverter: Iinkqubo zelanga ze-PV eziqhagamshelwe kwigridi zifuna ukulinganisa umgangatho wengeniso ukulinganisa amandla athunyelwa kwigridi. Iitransformer zangoku kwiiphaneli zokulinganisa i-PV inverter AC output feed ezinezakhono zokuvala umvavanyo, ezivumela imitha yombane kunye nenkqubo yokubeka iliso kwi-inverter ukuba zabelane ngemiqondiso yesibini ye-CT.

Iiphaneli Zokuvumelanisa Zejenereyitha: Xa ijenereyitha ihambelana negridi yombane okanye enye kwenye, iiphaneli ezihambelanayo zibonisa i-voltage, i-frequency, kunye ne-phase angle kuzo zombini ijenereyitha kunye ne-busbar. Iibhloko zokudibanisa uvavanyo lwesibini lwe-CT zivumela izixhobo ukuba zahlulwe kwaye zivavanyelwe ngexesha lokugcinwa kwejenereyitha okucwangcisiweyo.

Iiphaneli zovavanyo lweRelay yoKhuseleko: Iireyi zokukhusela zee-feeders ezibalulekileyo zifuna uvavanyo oluqhelekileyo ukuqinisekisa ukulinganiswa kwazo kunye nokusebenza kwazo ngokukuko. Iibhloko zokudibanisa uvavanyo kwiisekethe zesibini ze-CT Iireyi zokukhusela ukutya zivumela iiseti zovavanyo lweereyi ukuba ziqhagamshelwe kwaye ii-CT secondary ziqinisekiswe ngaphandle kokususa ireyi kwinkonzo.

Ukubeka iliso kuSasazo loMbane kwiZakhiwo: Izakhiwo ezinkulu zorhwebo zisebenzisa iiphaneli zokulinganisa ukuphumeza ukulinganisa abaqeshi, ulawulo lomthwalo, kunye neenkqubo zokuphendula imfuno. Iibhloko zokudibanisa uvavanyo lwe-multi-circuit ezixineneyo zithwala inani elikhulu leesekethe ze-CT ezikwezi zixhobo.

Ufakelo Iindlela Ezilungileyo Zokusebenzisa Iibhloko Zesiphelo Zovavanyo Kwiiphaneli Zokulinganisa

Ukufakwa ngokufanelekileyo kweebhloko zesiphelo sokudibanisa uvavanyo kubaluleke njengokukhetha icandelo elifanelekileyo. Ezi ndlela zilandelayo zibalaseleyo zixhasa ukusebenza okuthembekileyo kwexesha elide:

Ukufakelwa Okukhuselekileyo: Ibhloko yesiphelo kufuneka ifakwe kwi-DIN rail enobukhulu obufanelekileyo okanye ngqo kwi-backplate yepaneli kusetyenziswa indlela yokuyifaka ecetyiswa ngumenzi. Ukhuseleko olungonelanga lokuyifaka lunokubangela uxinzelelo loomatshini kwiintambo zombane ngokuhamba kwexesha.

Ukupheliswa kweNtambo ngokuchanekileyo: Sebenzisa ubungakanani bentambo obucetyiswe ngumvelisi kwireyithingi yangoku yesekethe yesibini ye-CT. Kwisekethe yesibini ye-1A okanye ye-5A CT, ubungakanani bentambo obuyi-2.5 mm² ukuya kwi-4 mm² buqhelekile. Iiferrule zentambo kufuneka zisetyenziswe kwiikhontraktha ezixineneyo ukuthintela ukuqhekeka nokuqinisekisa uxinzelelo oluthembekileyo loqhagamshelwano.

Ukungaguquguquki kwePolarity: Iisekethe zesibini ze-CT zineempawu ze-polarity ezichaziweyo (ichaphaza okanye i-X convention). Zonke iibhloko zesiphelo kwisekethe yesibini ye-CT kufuneka zifakwe i-polarity efanayo ukuqinisekisa ukuba izixhobo zibonisa ubukhulu obuchanekileyo kunye nophawu. Ibha yokufinyeza yebhloko yokudibanisa uvavanyo kufuneka ifinyeze ii-terminals ze-polarity ezifanelekileyo kunye.

Ukuqinisekiswa okubonakalayo: Emva kokufaka iingcingo, qinisekisa ngokubonakalayo ukuba indlela yokusebenza kwebha yokufinyeza ikwindawo echanekileyo yokusebenza okucetywayo. Kwindawo eqhagamshelweyo, iileyi zesixhobo kufuneka zibandakanyeke kwaye i-CT yesibini akufuneki ifinyezwe. Kwindawo yovavanyo, i-shorting bar kufuneka ibandakanyeke kwaye iileyi zesixhobo kufuneka zifikeleleke.

Iilebheli zePhaneli: Ibhloko nganye yesiphelo sovavanyo kufuneka ibhalwe ngokucacileyo ukuze ichonge ukuba yeyiphi isekethe ye-CT eyisebenzisayo. Oku kwenza lula iinkqubo zolondolozo, kunciphisa umngcipheko wempazamo yomqhubi ngexesha lovavanyo, kwaye kuxhasa iinkqubo zokwahlukanisa ezikhuselekileyo.

Ukuze ufumane ulwazi oluthe kratya malunga nezisombululo ze-terminal block zezicelo zokulinganisa kunye nezixhobo, ndwendwela i-J-Guang's Iphepha lemveliso yePCB Screw Terminal Block kwaye ikhathalogu epheleleyo yemveliso.

Isiphelo: Isiseko seNkqubo zokulinganisa eziKhuselekileyo neziLungelekayo

Iibhloko zesiphelo sokuvala umbane ezineesokhethi zebhanana eziyi-4mm zizinto ezincinci kwiphaneli yokulinganisa, kodwa umsebenzi wazo ubaluleke kakhulu. Zibonelela ngonxibelelwano olubalulekileyo phakathi kweesekethe zesibini ze-transformer zangoku kunye nezixhobo ezenza ukuba umlinganiselo wombane ube nokwenzeka, ngelixa ngaxeshanye ziqinisekisa ukhuseleko lwabasebenzi kunye nezixhobo ngokusebenzisa iindlela zazo zokukhawulezisa ngokuzenzekelayo.

Xa kucaciswa okanye kufunwa ezi zinto, iikhrayitheriya zobugcisa kufuneka zibaluleke ngaphezu kwexabiso lodwa. Ibhloko yesiphelo esingaphumeleliyo ukubonelela ngokufinyezwa okuthembekileyo, ukumelana ne-dielectric eyaneleyo, okanye ukumelana nokuxinana okukhuselekileyo kuya kubeka emngciphekweni ukhuseleko kunye nokuthembeka komlinganiselo efakelwe ukukhusela. Ukusebenza nomthengisi webhloko yesiphelo sokuvala onokubonisa umgangatho obhaliweyo, inkxaso yobugcisa epheleleyo, kunye nokufumaneka rhoqo sisiseko sokwakha iiphaneli zokulinganisa ezikhonza abasebenzisi bazo ngokuthembekileyo kwiminyaka emininzi yokusebenza.

Imakethi yokulinganisa kunye nokukhusela ireyila yakhelwe phezu kokuchaneka, ukuthembeka, kunye nokhuseleko—imigaqo emithathu ekufuneka wonke umthengisi weebhloko zesiphelo sovavanyo oluchanekileyo abelane ngayo nabathengi bakhe.

Imibuzo ebuzwa qho

Q: Yintoni umahluko phakathi kwebloko yesiphelo sovavanyo kunye nebloko yesiphelo esiqhelekileyo?
A: Ibhloko yesiphelo sokudibanisa uvavanyo ibandakanya indlela yokuqhawula kunye nokufinyeza evumela iisekethe zesibini ze-CT ukuba ziphazamiseke ngokukhuselekileyo ukuze kuvavanywe ngelixa kugcinwa isekethe emfutshane kwi-CT secondary ngamaxesha onke. Ibhloko yesiphelo esiqhelekileyo inika indawo yokuphela esisigxina kuphela yoqhagamshelo lwentambo kwaye ayibandakanyi umsebenzi wokufinyeza ozenzekelayo ofunekayo ekusebenzeni kwesekethe yesibini ye-CT ekhuselekileyo.

Q: Ngaba iibhloko zokudibanisa i-banana socket test 4mm zingasetyenziselwa iisekethe zesibini ze-voltage transformer (VT)?
A: Ewe, iibhloko zokudibanisa uvavanyo zingasetyenziselwa iisekethe zesibini ze-VT, nangona iimfuno zahlukile kancinci. Iisekethe zesibini ze-VT azibonisi ingozi efanayo ye-voltage yesekethe evulekileyo njengeesekethe zesibini ze-CT, kodwa iibhloko zokudibanisa uvavanyo zisabonelela ngomsebenzi obalulekileyo wokuvumela izixhobo ukuba zahlulwe ukuze kuvavanywe okanye kutshintshwe ngaphandle kokunciphisa amandla esekethe eyintloko. Qinisekisa ukuba umlinganiselo we-voltage yebhloko yesiphelo esikhethiweyo ufanelekile kwi-voltage yesibini ye-VT.

Q: Ndingazi njani ukuba indlela yokufinyeza kwibloko yokudibanisa uvavanyo ithembekile?
A: Khangela iimveliso ezivavanyiweyo ngokwemigangatho efanelekileyo ye-IEC, equka ukuqinisekiswa kokusebenza kokunqanyulwa. Iphepha ledatha lomthengisi kufuneka lichaze ukumelana nokungqamana kwendlela yokunqanyulwa. Iibhloko ezikumgangatho ophezulu zihlala zichaza ukumelana nokungqamana okungqamileyo okungaphantsi kwe-10 milliohms. Amanqaku esiqinisekiso somntu wesithathu avela kwiilabhoratri ezifana ne-UL, i-VDE, okanye i-KEMA anika isiqinisekiso esongezelelweyo.

Q: Ngowuphi ubungakanani bentambo ekufuneka busetyenziswe kwiibhloko zesiphelo sovavanyo kwisekethe zesibini ze-CT?
A: Kwiisekethe zesibini ze-CT ezilinganiswe kwi-1A okanye kwi-5A, ubungakanani beentambo ezisuka kwi-2.5 mm² ukuya kwi-4 mm² zihlala zichaziwe. Ubungakanani beentambo ezincinci bungasetyenziswa kwiindlela ezimfutshane kakhulu, kodwa ukuhla kwevolthi kwisekethe yesibini kufuneka kujongwe ukuqinisekisa ukuba kuhlala ngaphakathi kwemida eyamkelekileyo yomthwalo wesixhobo. Iphepha ledatha lomenzi we-terminal block liya kuchaza uluhlu lweentambo olucetyiswayo kwimveliso ethile.

Q: Kufuneka zihlolwe okanye zitshintshwe kangaphi iibhloko zesiphelo sovavanyo lokukhupha unxibelelwano?
A: Nangona iibhloko zokudibanisa umbane zovavanyo zingenalo ixesha lokutshintsha elimiselweyo njengezinye izinto ezigugileyo, kucetyiswa ukuba kwenziwe uhlolo olubonakalayo rhoqo—oluhlala lusenziwa ngonyaka—. Uhlolo kufuneka luqinisekise ukuba iindlela zokudibanisa umbane kunye nokunciphisa umbane zisebenza ngokuchanekileyo, ukuba uqhagamshelo lombane luhlala luqinile, kwaye indawo yokukhusela umbane ayibonisi zimpawu zomonakalo okanye umkhondo. Nasiphi na ibhloko ebonisa iimpawu zokuxinana koqhagamshelwano, ukulandelela ubushushu, okanye ukonakala komatshini kufuneka itshintshwe ngoko nangoko.

Q: Ingakanani ixesha eliqhelekileyo lobomi bebhloko yesiphelo sokudibanisa uvavanyo?
A: Ubomi bomatshini bebhloko yokudibanisa uvavanyo buhlala bulinganiswa ngumvelisi ngokwemijikelo yokusebenza—umzekelo, imisebenzi engama-500 okanye eli-1,000. Phantsi kweemeko zenkonzo eziqhelekileyo kwiphaneli yokulinganisa, ibhloko inokubona imisebenzi embalwa yokudibanisa ngonyaka, oko kuthetha ukuba ubomi bomatshini bunokwandisa iminyaka engama-20-40 nangaphezulu. Ubomi bombane buxhomekeke kakhulu kukuzinza kokumelana nokuqhagamshelana kunye nokukwazi ukumelana ne-dielectric kwenkqubo yokukhusela, zombini eziwohloka kancinci ngokuhamba kwexesha phantsi komthwalo oqhubekayo kunye noxinzelelo lokusingqongileyo.