Isidingo semishini yokuphepha kagesi ethuthukisiwe sikhulu kunanini ngaphambili. Imikhakha yezimboni neyezentengiselwano idinga ubuchwepheshe obuningi ukuqinisekisa amagridi azinzile, ukuvikela ukunikezwa kukagesi nokuvikela izimpahla zawo. Ukusungulwa kwemishini yokuphepha kagesiama-circuit breaker ahlakaniphilefuthi ukusebenza kwabo okuthembekile kube yinto eshintsha kakhulu imboni. Namuhla, sizobheka kabanzi ukuthii-air circuit breaker (ACB)kuyisisekelo sanoma yiluphi uhlelo lokusabalalisa amandla lwesimanje.
II-Intelligent Universal Circuit Breaker, esikubiza ngokuthiI-ACB, iyithuluzi lokuvikela elisha eliqinisekisa igridi ezinzile ngokusebenzisa imisebenzi ehlakaniphile. Liqukethe izinto eziningana ezihlanganisa amayunithi okuhamba, izinzwa kanye nama-actuator. Ama-circuit breaker anesibopho sokukhubeka uma kwenzeka isimo esingavamile kugridi, njengokugcwala ngokweqile, iphutha le-short circuit noma i-ground fault, kanye nokuhlukanisa ngokuphelele i-circuit. Uma ikhubeka, idivayisi ixwayisa umqhubi wesistimu nge-alamu noma isignali.
I-ACB isebenza kahle kakhulu ngoba ingaxhumana nezingxenye ezahlukahlukene zesistimu kagesi, okuhlanganisa nezinye iziphuli zesekethe, amamitha, kanye nama-relay, okuvumela ukuqapha okuphelele kwegridi. Lokhu kuhlakanipha kuyisihluthulelo sokwenza ngcono ukuphepha, ukusebenza kanye nenzuzo yokufakwa kukagesi. Ngokuqoqa nokucubungula idatha mayelana namandla, amandla kanye nemingcele eminingi, iziphuli zesekethe zisiza ukuvikela imishini, ukuvimbela izinhlekelele kanye nokwandisa ukusebenza kahle.
Ama-ACB atholakala ngobukhulu nezinhlobo ezahlukahlukene, okusenza sikwazi ukuhlangabezana nezidingo ezahlukene zohlelo lokusebenza embonini. Isakhiwo sale divayisi sihlanganisa umzimba we-circuit breaker ohlonyiswe ngokuxhumana kukagesi, indlela yokusebenza kanye nokukhululwa. Ukwakhiwa kwayo kokuxhumana kwenziwa ngethusi eliqinisiwe elinokwakheka kwezingqimba eziningi kanye nokubekezelelana okunembile okuqinisekisa ukuhanjiswa kukagesi okuseqophelweni eliphezulu kanye nokuqina. Indlela yayo yokusebenza ingaba kagesi noma intwasahlobo, okusivumela ukuthi sifake ama-circuit breaker ngokuthembekile, ngempumelelo nangokulula ezimweni ezinzima.
Okokugcina, iyunithi yohambo iyona ebaluleke kakhulu ku-ACB njengoba ihlaziya isimo segagasi futhi inquma ukuthi izohamba nini. Amayunithi ohambo angaba ngogesi noma ngogesi, kuye ngokuthi isicelo sisebenza kanjani. Ihlanganisa i-CT, i-PT, ibhodi yesekethe yokulawula kanye ne-microprocessor. I-CT ne-PT zisampula ugesi kanye ne-voltage ngokulandelana, bese zithumela isignali ebhodini lokulawula ukuze icutshungulwe. I-microprocessor ibe isihlaziya idatha yesignali ukuze inqume ukuthi kukhona yini okungajwayelekile kusekethe futhi, uma kudingeka, ikhipha umyalo wohambo ku-actuator, ngaleyo ndlela ikhube indlela yokusebenza.
Ngamafuphi,i-circuit breaker ehlakaniphile yendawo yonkeiyithuluzi lokuvikela ugesi elibalulekile ukuze kufezwe intuthuko enkulu yegridi kagesi yezwe lami. Ngezici zayo ezihlakaniphile nezithembekile kanye nemisebenzi, ama-circuit breaker athuthukisa futhi aqinisekise ukuphepha, ukusebenza kanye nokusebenza kahle kokufakwa kukagesi. Njengoba imboni iqhubeka nokukhula, ukubaluleka kokuphepha kukagesi akunakugcizelelwa kakhulu. I-ACB inikeza izixazululo eziphelele ezihlangabezana nezidingo ezahlukene zohlelo lokusebenza futhi ziqinisekise ukuqhubeka kokunikezwa kukagesi, ngaleyo ndlela kwandise ukuthembeka kanye nokukhiqiza emikhakheni yezimboni neyezentengiselwano.
Isikhathi sokuthunyelwe: Ephreli-07-2023