I-disconnector (i-disconnector) ithetha ukuba xa ikwi-sub-position, kukho umgama we-insulation kunye nophawu olucacileyo lokuqhawula phakathi koqhagamshelwano oluhlangabezana neemfuno ezichaziweyo;xa ikwindawo evaliweyo, inokuthwala ikhoyo ngoku phantsi kweemeko zesekethe eziqhelekileyo kunye neemeko ezingaqhelekanga ngaphakathi kwexesha elithile (njenge-short-circuit) isixhobo sokutshintsha ngoku.
Iswitshi yokwahlula esithetha ngayo ngokubanzi ibhekisa kumatshini wokwahlula wevoltage ephezulu, oko kukuthi, iswitshi yokubeka yodwa enombane olinganiselweyo we-1kv nangaphezulu, edla ngokubizwa ngokuba sisitshixo sokwahlula, esesona sixhobo sombane sisetyenziswa kakhulu kwindawo ephezulu. izixhobo zokutshintsha umbane.Kwaye isakhiwo silula, kodwa ngenxa yobuninzi bokusetyenziswa kunye neemfuno eziphezulu zokuthembeka komsebenzi, kunempembelelo enkulu kuyilo, ukusekwa kunye nokusebenza ngokukhuselekileyo kweendawo ezincinci kunye nezityalo zamandla.Into ephambili yokutshintsha imela kukuba ayinakho i-arc yokucima amandla, kwaye inokwahlula kuphela kwaye ivale isiphaluka ngaphandle komthwalo wangoku.
Iswitshi yokubeka wedwa edla ngokusetyenziswa kwizitshixo zomgodi wamalahle:
I-1) Emva kokuvula, misela i-gap ethembekileyo yokuqhawula, kwaye uhlukanise izixhobo okanye imigca efuna ukulungiswa kumbane kunye nendawo ecacileyo yokuqhawula ukuqinisekisa ukhuseleko lwabasebenzi bokugcinwa kunye nezixhobo.
2) Ngokweemfuno zokusebenza, tshintsha umgca.
3) Ingasetyenziselwa ukwahlula kunye nokudibanisa ama-currents amancinci kumgca, njengombane wokutshaja we-bushings, i-busbars, i-connectors, iintambo ezimfutshane, i-capacitive current of switch balancing capacitors, i-current current xa i-double busbars iguqulwa kunye ne-excitation. yangoku ye-voltage transformers Linda.
I-4) Ngokwemeko ethile yeentlobo ezahlukeneyo zesakhiwo, ingasetyenziselwa ukwahlula kunye nokudibanisa i-no-load excitation current ye-transformer umthamo othile.
Ngokweendlela ezahlukeneyo zokufakela, iiswitshi zokwahlula zombane eziphakamileyo zinokwahlulwa zibe zizitshixo zangaphandle eziphezulu ze-voltage kunye nezitshixo zokuzihlukanisa zangaphakathi eziphezulu.Izitshixo zokwahlula zombane zangaphandle zibhekisa kutshintsho olunombane oluphezulu olunokumelana nefuthe lomoya, imvula, ikhephu, ubumdaka, ukujiya, umkhenkce kunye neqabaka eshinyeneyo, kwaye ifanelekile ukufakelwa kwi-terraces.Inokwahlulwa ibe yi-disconnector yekholamu enye, i-disconnector yekholamu ephindwe kabini kunye ne-disconnector yekholamu emithathu ngokwesakhiwo se-struts yayo yokukhusela.Phakathi kwabo, umtshini wekholomu enye usebenzisa ngokuthe ngqo indawo ethe nkqo njenge-insulation yombane ye-fracture phantsi kwe-busbar ephezulu.Ngoko ke, ineenzuzo ezicacileyo zokugcina indawo yomgangatho, ukunciphisa iingcingo ezikhokelayo, kwaye ngelo xesha, ukuvulwa nokuvala urhulumente kucacile ngokukodwa.Kwimeko yokuhanjiswa kwamandla ombane we-ultra-high, umphumo wokugcina indawo yomgangatho ubaluleke kakhulu emva kokuba ukutshintshwa kwemela enye ikholamu isetyenziswe kwisitishi.
Kwizixhobo ze-low-voltage, zifaneleka kakhulu kwiinkqubo zokuhambisa amandla e-terminal terminal ezifana nezakhiwo zokuhlala kunye nezakhiwo.Imisebenzi ephambili: ngokuqhawula umthwalo kunye nomgca wokudibanisa
Iimbonakalo
1. Xa izixhobo zombane zigqithiswa, ikhefu lombane linikezelwa, kwaye liyindawo ecacileyo yokuqhawula ukuqinisekisa ukhuseleko lomntu lwabasebenzi bokulondoloza.
2. Umtshini wokuhlukanisa awukwazi ukusebenza kunye nomthwalo: awukwazi ukusebenza ngomthwalo olinganisiweyo okanye umthwalo omkhulu, kwaye awukwazi ukwahlula kunye nokudibanisa umthwalo wangoku kunye nombane okhoyo, kodwa abo banegumbi lokucima i-arc banokusebenza kunye nomthwalo omncinci kunye nomgca wokungena. .
3. Ngokuqhelekileyo ukusebenza kokuhanjiswa kwamandla: okokuqala vala umtshini wokuhlukanisa, emva koko uvale i-breaker circuit okanye ukulayisha umthwalo;xa umtshini wokuzihlukanisa ucinyiwe: qala uqhawule i-breaker circuit okanye utshintshe umthwalo, uze uqhawule umtshini wokuzihlukanisa.
4. Ukhetho alufani nezinye izixhobo zombane, zonke ezo kufuneka zilinganiswe i-voltage, i-current rated current, i-dynamic stable current, i-thermal stable current, njl.njl kufuneka ihlangabezane neemfuno zesicelo.
Umsebenzi wokutshintsha okukodwa kukuqhawula isiphaluka sokungabikho komthwalo wangoku, ukwenzela ukuba izixhobo zilungiswe kwaye umbane ube neendawo ezicacileyo zokuqhawula ukuqinisekisa ukhuseleko lwabasebenzi bokulondoloza.Umtshini wokuhlukanisa awukwazi ukunqumla umthwalo wangoku kunye nombane omfutshane ngaphandle kwesixhobo esikhethekileyo sokucima i-arc., ngoko ke umtshini wokuzihlukanisa unokusebenza kuphela xa isiphaluka sinqanyuliwe ngumqhubi wesiphaluka.
Ixesha lokuposa: Oct-29-2022