I-Main Circuit Breaker vs. I-Branch Circuit Breaker: I-Logic Yokuxhumanisa Izinga Eliphezulu Neliphansi

Ohlelweni lokusatshalaliswa kwamandla, ama-circuit breaker asebenza njengemishini eyinhloko yokuvikela ukuphepha kwesekethe nokuvikela ekucindezelekeni ngokweqile kanye namaphutha e-short-circuit. Ukuxhumana phakathi kwe-circuit breaker eyinhloko kanye nama-circuit breaker egatsha kunquma ngqo ukuzinza kwesistimu yokusabalalisa kanye nokuqonda kokuphathwa kwamaphutha. Lesi sihloko sichaza kafushane indawo yazo eyinhloko futhi sihlukanise indlela yazo yokuhlanganisa, sisize ochwepheshe abafanele kanye nabathengi baqonde ngokushesha amaphuzu ayisihluthulelo.

Ukucacisa izincazelo eziyinhloko kanye nokubekwa kwalezi zinto ezimbili kubalulekile ekuqondeni umqondo wokuhlanganisa:

1.I-circuit breaker eyinhloko, eyaziwa nangokuthi i-main breaker, ifakiwe emgqeni we-trunk wesistimu yokusabalalisa amandla. Ilawula isimo sokuvula/ukuvala kwesekethe yonke yokusabalalisa futhi ithatha umthwalo wemfanelo wokuvikela lonke uhlelo ekucindezelweni okukhulu kanye namaphutha e-short-circuit, esebenza njenge "sango eliyinhloko" lesistimu yokusabalalisa elinganqamula amandla kulo lonke uhlelo.

2.I-branch circuit breakerifakiwe emugqeni ngamunye wegatsha, ehambisana nezisekelo zamandla ezithile njengokukhanyisa, amasokhethi kanye nemishini kagesi. Ilawula ukuvulwa/ukuvalwa kwegatsha elilodwa futhi ivikele ukuphepha kwamandla kwegatsha elikulo, isebenza njenge "sango legatsha" lesistimu yokusabalalisa.

Ingqikithi yendlela yabo yokuxhumana ezingeni eliphezulu neliphansi iwukuthiukuvikelwa okulinganisiwe kanye nokukhubeka okukhethiwe, okuvimbela ukwanda kwamaphutha.

●Uma kwenzeka iphutha lokulayisha ngokweqile noma le-short-circuit egatsheni, i-branch circuit breaker izokhetha ukunqamula ukunikezwa kwamandla kwegatsha elinephutha ngesikhathi esifanele, kuyilapho i-circuit breaker eyinhloko ihlala isebenza ngendlela evamile ukuqinisekisa ukuthi amanye amagatsha awathinteki futhi ukunikezwa kwamandla kuyaqhubeka, kufezwa umgomo wokuthi "igatsha elinephutha kuphela elicinywayo".

●Uma kwenzeka iphutha elikhulu (njengomjikelezo omfushane emgqeni we-trunk) engakwazi ukusulwa yi-branch circuit breaker, i-main circuit breaker izosebenzisa umsebenzi wayo wokuvikela ukuze inqume ukunikezwa kwamandla kwesistimu yonke yokusabalalisa, ivimbele iphutha ukuthi lingasabalali kuyo yonke isekethe futhi libangele ukulahlekelwa okukhulu.

Ngaphezu kwalokho, i-logic yokuxhumanisa kumele ihlangabezane nesidingo se-izici zokusebenza ezifanayo: isikhathi sokukhubeka kanye nesikhathi sokusebenza se-main circuit breaker kufanele sibe sikhulu kunese-branch circuit breakers, ukuqinisekisa ukuthi ama-branch breakers asebenza kuqala futhi i-main breaker isebenza njengesivikelo sokusekela uma kwenzeka iphutha, kugwenywe isimo esingenangqondo sokuthi i-main breaker ikhubeka kuqala futhi wonke amagatsha alahlekelwe amandla ngasikhathi sinye.

Ngamafuphi, ukuhlanganiswa okunjalo kwezinga eliphezulu neliphansi akugcini nje ngokuqinisekisa ukuphepha kwamandla kwegatsha elilodwa, kodwa futhi kugcina ukuzinza kohlelo lonke lokusatshalaliswa kwamandla, okuyisimiso esiyinhloko ekwakhiweni nasekusebenzeni kwezinhlelo zokusatshalaliswa.