Ukukhuselwa kombane ngumba ophambili wemibutho esebenza izixhobo zombane ezibuthathaka, ngakumbi kushishino losasazo.Okunxulumene nomgca wokuqala wokukhusela ngokuchasene nombane kunye nokunyuka kwamandla ombane yinkqubo yokumisa.Ngaphandle kokuba yenzelwe kwaye ifakwe ngokuchanekileyo, naluphi na ukhuseleko lokunyuka aluyi kusebenza.
Enye yeendawo zethu zokusasaza zikamabonakude ibekwe phezu kwentaba ephakame kangangeenyawo ezingama-900 kwaye yaziwa ngokufumana imibane.Kutshanje ndiye ndabelwa ukuba ndilawule zonke iindawo zethu zokusasaza;ngoko ke, ingxaki yadluliselwa kum.
Kwabakho umbane ngo-2015, kwaye umbane akazange ayeke ukusebenza iintsuku ezimbini zilandelelana.Ekuhlolweni kwam, ndafumanisa ukuba ifuse ye-transformer eluncedo ivuthelwe.Ndiphinde ndaqaphela ukuba iswitshi entsha yotshintshelo oluzenzekelayo (ATS) LCD display is blank.Ikhamera yokhuseleko yonakele, kwaye inkqubo yevidiyo esuka kwikhonkco ye-microwave ayinanto.
Ukwenza izinto zibe zibi nakakhulu, xa amandla okusebenza abuyiselwa, i-ATS yaqhuma.Ukuze siphinde sivule umoya, ndanyanzeleka ukuba nditshintshe i-ATS ngesandla.Ilahleko eqikelelwayo ingaphezulu kwe-5,000 yeedola.
Ngokumangalisayo, i-LEA yesigaba sesithathu sokukhusela i-480V ibonisa ukuba akukho zimpawu zokusebenza konke konke.Oku kuye kwavusa umdla wam kuba kufuneka ikhusele zonke izixhobo kwindawo kwiziganeko ezinjalo.Ngombulelo, i-transmitter ilungile.
Akukho maxwebhu ofakelo lwesixokelelwano somhlaba, ngoko andinakuyiqonda inkqubo okanye intonga yokumisa.Njengoko kunokubonwa kwi-Figure 1, umhlaba okwisiza uncinci kakhulu, kwaye umhlaba wonke ongezantsi wenziwa ngamatye e-Novaculite, njenge-silica-based insulator.Kulo mhlaba, iintonga eziqhelekileyo zomhlaba aziyi kusebenza, kufuneka ndiqinisekise ukuba ngaba zifake intonga yomhlaba wekhemikhali kunye nokuba isekhona ngaphakathi kobomi bayo obuncedo.
Kukho izibonelelo ezininzi malunga nomlinganiselo wokumelana nomhlaba kwi-Intanethi.Ukwenza le milinganiselo, ndakhetha imitha yokumelana nomhlaba we-Fluke 1625, njengoko kuboniswe kuMzobo 2. Isixhobo esinemisebenzi emininzi esingasebenzisa intonga yomhlaba kuphela okanye sidibanise intonga yomhlaba kwisistim sokulinganisa umhlaba.Ukongeza koku, kukho amanqaku esicelo, apho abantu banokulandela ngokulula ukufumana iziphumo ezichanekileyo.Le yimitha yexabiso eliphezulu, ngoko ke siye sarenta enye ukuze senze lo msebenzi.
Iinjineli zokusasaza ziqhele ukulinganisa ukuchasana kwabachasi, kwaye kube kanye kuphela, siya kufumana elona xabiso.Ukuchasana komhlaba kuyahluka.Into esiyifunayo kukuchasana okuza kubonelela ngomhlaba ojikelezayo xa ukunyuka kwangoku kudlula.
Ndasebenzisa indlela "yokwehla okunokwenzeka" xa ulinganisa ukuchasana, i-theory echazwe kwi-Figure 1 kunye ne-Figure 2. 3 ukuya kwi-5.
Kwi-Figure 3, kukho intonga yomhlaba u-E wobunzulu obunikiweyo kunye nemfumba C kunye nomgama othile ukusuka kwintonga yomhlaba E. Umthombo we-voltage VS uqhagamshelwe phakathi kwezi zibini, eziza kuvelisa i-E yangoku phakathi kwemfumba C kunye ne-voltage. intonga yomhlaba.Ukusebenzisa i-voltmeter, sinokulinganisa i-voltage VM phakathi kwezi zibini.Xa sisondela ngakumbi ku-E, i-voltage ephantsi i-VM iba.I-VM nguziro kwirod yomhlaba E. Kwelinye icala, xa silinganisa amandla ombane kufutshane nengqumba C, i-VM iba phezulu.Kwi-equity C, i-VM ilingana nomthombo wombane we-VS.Ukulandela umthetho we-Ohm, sinokusebenzisa i-voltage ye-VM kunye ne-C yangoku ebangelwa yi-VS ukufumana ukuchasana komhlaba kumdaka ojikelezayo.
Ukucinga ukuba ngenxa yengxoxo, umgama phakathi kwentonga yomhlaba u-E kunye ne-C yi-100 yeenyawo, kwaye i-voltage ilinganiswa rhoqo ngeenyawo ezili-10 ukusuka kwintonga yomhlaba u-E ukuya kwi-C. Ukuba uceba iziphumo, ijika lokumelana kufuneka libukeke njengoMzobo. 4.
Inxalenye ethe tyaba yixabiso lokumelana nomhlaba, okuyinqanaba lempembelelo yentonga yomhlaba.Ngaphaya koko kuyinxalenye yomhlaba omkhulu, yaye imisinga yolwandle ayisayi kuphinda ingene.Ukuqwalasela ukuba i-impedance iyanda kwaye iphezulu ngeli xesha, oku kuyaqondakala.
Ukuba intonga yomhlaba i-8 ubude ubude, umgama we-pile C udla ngokumiselwa ukuya kwi-100 yeenyawo, kwaye inxalenye ethe tyaba yegophe malunga neemitha ezingama-62.Iinkcukacha ezongezelelekileyo zobuchwephesha azinakugutyungelwa apha, kodwa zinokufumaneka kwinqaku lesicelo elifanayo kwiFluke Corp.
Ukuseta usebenzisa i-Fluke 1625 kuboniswe kuMzobo 5. Imitha yokumelana ne-1625 i-grounding resistance meter ine-generator yayo ye-voltage, enokufunda ixabiso lokumelana ngokuthe ngqo kwimitha;akukho mfuneko yokubala ixabiso le-ohm.
Ukufunda yinxalenye elula, kwaye inxalenye enzima kukuqhuba iziteki zombane.Ukuze ufumane ukufundwa ngokuchanekileyo, intonga yomhlaba inqanyuliwe kwinkqubo yokumisa.Ngenxa yezizathu zokhuseleko, siqinisekisa ukuba akukho nto inokubakho umbane okanye ukungasebenzi kakuhle ngexesha lokugqitywa, kuba yonke inkqubo idada phantsi ngexesha lenkqubo yokulinganisa.
Umzobo 6: I-Lyncole System XIT intonga yomhlaba.Ucingo oluqhawukileyo olubonisiweyo ayisosidibanisi esiphambili senkqubo yokumisa umhlaba.Ikakhulu idityaniswe phantsi komhlaba.
Ukujonga ngeenxa zonke, ndifumene intonga yomhlaba (Umfanekiso 6), ngokwenene intonga yomhlaba wekhemikhali oveliswa yiLyncole Systems.Intonga yomhlaba iqulethe i-8-intshi ububanzi, i-10-foot hole egcwele umxube okhethekileyo wodongwe obizwa ngokuba yi-Lynconite.Embindini walo mngxuma kukho umbhobho wethusi ongenanto ubude obufanayo kunye nobubanzi obuyi-intshi ezi-2.I-hybrid Lynconite inikeza ukuchasana okuphantsi kakhulu kwintonga yomhlaba.Omnye umntu undixelele ukuba xa kufakwa le ntonga, kwasetyenziswa iziqhushumbisi ukwenza imingxuma.
Emva kokuba i-voltage kunye neemfumba zangoku zifakwe emhlabeni, ucingo luxhunyiwe kwi-pile nganye ukuya kwimitha ngokulandelelana, apho ixabiso lokumelana lifundwa khona.
Ndifumene ixabiso lokumelana nomhlaba we-7 ohms, elixabiso elihle.IKhowudi yoMbane yeSizwe idinga ukuba i-electrode yomhlaba ibe yi-25 ohms okanye ngaphantsi.Ngenxa yobuntununtunu besixhobo, ishishini lonxibelelwano lidla ngokufuna i-5 ohms okanye ngaphantsi.Ezinye izityalo ezinkulu zemizi-mveliso zifuna ukumelana nomhlaba ophantsi.
Njengesiqhelo, ndihlala ndifuna iingcebiso kunye nokuqonda kubantu abanamava ngakumbi kolu hlobo lomsebenzi.Ndabuza iNkxaso yobuChwepheshe beFluke malunga nokungahambelani kokunye kokufunda endikufumeneyo.Bathi ngamanye amaxesha izibonda zisenokungadibani kakuhle nomhlaba (mhlawumbi ngenxa yokuba iliwa liqinile).
Ngakolunye uhlangothi, iLyncole Ground Systems, umenzi weentonga zomhlaba, wathi uninzi lokufundwa luphantsi kakhulu.Balindele ufundo oluphezulu.Nangona kunjalo, xa ndifunda amanqaku malunga neentonga zomhlaba, lo mahluko uyenzeka.Uphononongo oluthatha imilinganiselo rhoqo ngonyaka iminyaka eyi-10 lufumanise ukuba i-13-40% yokufundwa kwabo yahlukile kwezinye izinto ezifundwe.Kwakhona basebenzise iintonga zomhlaba ezifanayo esasizisebenzisa.Ke ngoko, kubalulekile ukugqiba ukufunda okuninzi.
Ndacela enye ikontraka yombane ukuba ifakele uqhagamshelo oluluqilima lwamacingo asemhlabeni ukusuka kwisakhiwo ukuya kwintsimbi yomhlaba ukuze kuthintelwe ukubiwa kobhedu kwixesha elizayo.Baphinde benza enye imilinganiselo yokumelana nomhlaba.Nangona kunjalo, imvula yana iintsuku ezimbalwa ngaphambi kokuba bathathe ukufundwa kwaye ixabiso abalifumanayo lalingaphantsi kwe-7 ohms (ndathatha ufundo xa lome kakhulu).Ukususela kwezi ziphumo, ndiyakholelwa ukuba intonga yomhlaba isekwimeko entle.
Umzobo 7: Jonga udibaniso oluphambili lwenkqubo yokumisa.Nangona inkqubo yokumisa idibaniswe kwintonga yomhlaba, i-clamp ingasetyenziselwa ukujonga ukuchasana komhlaba.
Ndahambisa i-480V suppressor suppressor ukuya kwindawo emgceni emva kokungena kwenkonzo, kufuphi nomtshini oyintloko wokuqhawula.Yayikade ikwikona yesakhiwo.Nanini na xa kukho umbane, le ndawo intsha ibeka umcinezeli wotyando kwindawo yokuqala.Okwesibini, umgama phakathi kwayo kunye nentonga yomhlaba kufuneka ube mfutshane kangangoko.Kwilungiselelo langaphambili, i-ATS yeza phambi kwayo yonke into kwaye ihlala ikhokele.Iingcingo zezigaba ezithathu ezixhunywe kwi-suppressor suppressor kunye noxhumo lwalo lomhlaba lwenziwa lufutshane ukunciphisa i-impedance.
Ndabuyela kwakhona ukuphanda umbuzo ongaqhelekanga, kutheni i-surge suppressor ingasebenzi xa i-ATS iqhuma ngexesha lokukhanya kombane.Ngeli xesha, ndiye ndajonga ngokucokisekileyo lonke unxibelelwano olusemhlabeni kunye nokungathathi hlangothi kwazo zonke iiphaneli zesaphuli sesekethe, iijenereyitha ezigcinayo, kunye nee-transmitters.
Ndifumene ukuba udibaniso lomhlaba lwephaneli ye-breaker circuit main lulahlekile!Oku kukwalapho i-surge suppressor kunye ne-ATS zisekelwe khona (ngoko esi sisizathu sokuba kutheni i-surge suppressor ingasebenzi).
Yalahleka ngenxa yokuba isela lobhedu linqumle uqhagamshelo kwiphaneli ngaphambi kokuba i-ATS ifakwe.Iinjineli zangaphambili zalungisa zonke iingcingo zomhlaba, kodwa azikwazanga ukubuyisela uxhulumaniso lomhlaba kwiphaneli ye-circuit breaker.Ucingo olusikiweyo alubonwa lula kuba lusemva kwendawo yolawulo.Ndilulungisile olu qhagamshelo kwaye ndalwenza lukhuseleke ngakumbi.
Isigaba esitsha se-480V ATS sifakwe, kwaye ezintathu ze-Nautel ferrite toroidal cores zisetyenziswe kwigalelo lesigaba sesithathu se-ATS ukwenzela ukhuseleko olongezelelweyo.Ndiyaqinisekisa ukuba ikhawuntara yesurgery suppressor nayo iyasebenza ukuze sazi xa kusenzeka isiganeko soqhaqho.
Xa kwafika ixesha lesiqhwithi, yonke into yahamba kakuhle kwaye i-ATS yayiqhuba kakuhle.Nangona kunjalo, i-pole transformer fuse isavuthela, kodwa ngeli xesha i-ATS kunye nazo zonke ezinye izixhobo kwisakhiwo azisachatshazelwa kukunyuka.
Sicela inkampani yamandla ijonge ifuse evuthelweyo.Ndaxelelwa ukuba indawo isekupheleni kwenkonzo yenqanaba lothumelo lothumelo lwesigaba esithathu, ngoko ke iqheleke kakhulu kwiingxaki zotyando.Bacoca iipali kwaye bafakela izixhobo ezitsha phezu kweziguquli zeepali (ndikholelwa ukuba zikwaluhlobo oluthile lwe-surge suppressor), oluthintele ngokwenene i-fuse ekutshiseni.Andazi ukuba baye benza ezinye izinto kumgca wothumelo, kodwa nokuba benza ntoni na, iyasebenza.
Konke oku kwenzeka ngo-2015, kwaye ukususela ngoko, asizange sihlangabezane naziphi na iingxaki ezinxulumene nokunyuka kwamandla ombane okanye iindudumo.
Ukusombulula iingxaki zokunyuka kwamandla ombane ngamanye amaxesha akulula.Ukunyamekela kufuneka kuthathwe kwaye ngokucokisekileyo ukuqinisekisa ukuba zonke iingxaki zithathelwa ingqalelo kwi-wiring kunye nokudibanisa.Ithiyori emva kweenkqubo zokumisa kunye nokuhamba kombane kufanelekile ukufundwa.Kuyafuneka ukuba uziqonde ngokupheleleyo iingxaki zokumisa indawo enye, i-voltage gradients, kunye nokunyuka komhlaba okunokwenzeka ngexesha leempazamo ukuze wenze izigqibo ezifanelekileyo ngexesha lofakelo.
UJohn Marcon, i-CBTE CBRE, usandul 'usebenza njengeNjineli eyiNtloko kwi-Victory Television Network (VTN) e-Little Rock, e-Arkansas.Uneminyaka engama-27 yamava osasazo lukanomathotholo noomabonakude nezinye izixhobo, kwaye ukwangumfundisi-ntsapho ochwepheshile we-elektroniki.Uyinjineli yosasazo eqinisekisiweyo ye-SBE kunye nomabonwakude onesidanga se-bachelor kwi-elektroniki kunye nobunjineli bonxibelelwano.
Ukufumana ezinye iingxelo ezinjalo, kunye nokuhlala unolwazi ngazo zonke iindaba zethu ezihamba phambili kwimarike, iimpawu kunye nohlalutyo, nceda ubhalisele incwadana yethu yeendaba apha.
Nangona i-FCC inoxanduva lokubhideka kokuqala, i-Media Bureau isenayo isilumkiso esiya kukhutshwa kumntu onikwe iphepha-mvume
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Ixesha lokuposa: Jul-14-2021
