Gidajin Da Dukan Farkon AC Contactor: Daga Farkon Electromagnetic zuwa Farkon Mechanical Vibration Tashar Raddadi da Kula da Amsa

A cikin gwamnatin karamin jirgin ruwa, maimakon da suka fi sani a yi wa su ne na AC contactor, kuma ana iya zama matsalolin da ke faruwa da kayayyakin jirgin ruwa. Ba a gudanar da tsarin ya lura, musamman a yankunan da take da hawa mai kyau, za su iya samun tafi ta harsuna ko kadan bayan a gudanar da AC contactor. Dalilai na wannan alamun suna dogara da:

Tafi Ta Harsuna Bayan Gudanar Da Tsarin

AC contactor da ya fi dace ba suka shiga tafi kan bayan a gudanar da tsarin. Idan tafi ta harsuna yake faru a lokacin gudanar da tsarin, dalilai sun hada da: kisa a wurare masu iron core na yawan wuya da iron core na yawan rike; kungiyar kwashi na reset compression spring da ya shiga iron core na yawan wuya; ko hanyoyi na iron core na yawan wuya ba ta daidai.

Wannan irin abubuwan suna haifar da muhimmanci a wuraren iron core na yawan wuya da iron core na yawan rike, wanda yake haifar da magance magnetic resistance a cikin magnetic circuit da kuma yake kaɗe magnetic attraction force. Don in baka wannan, yana zama da increase a current a cikin coil don in baka magnetic attraction force ba ta rage, kuma wannan yanayi na adjustment yana duba daidai. Tafi ta harsuna shine resonance da ya faru saboda noise na current a cikin coil da vibration na reset compression spring— yadda yake da fage a wuraren iron core na yawan wuya da iron core na yawan rike, yadda yake da takwas tafi ta harsuna.

Abubuwan Da Sune Faru

a. Coil na AC contactor zai iya zama da burn out.

b. Zai iya faru poor contact a cikin main da auxiliary contacts. Masu hukumomi na main contacts suna da takwas load, wanda yana iya haifar da arc generation, wanda zai iya baka main contacts ko kuma haifar da adhesion da ba daidai. Kuma zai iya faru phase loss, wanda zai iya haifar da operation na three-phase load (misali, electric motor) da kuma baka three-phase load. Idan auxiliary contacts an amfani da su a wasu branches, operation na wasu branches zai iya kashe.

Saboda haka, idan AC contactor yake faru tafi ta harsuna, ya kamata a ku faru da zaruri.

II. Tafi Ta Kadan A Lokacin Gudanar Da Tsarin

Idan AC contactor ya gudanar da tsarin, tafi ta kadan da yake faru 100 daga baya ita ce da open circuit a short-circuit ring na contactor’s static (ko moving) iron core.

Alternating current na frequency na 50 Hz yana gudanar da zero 100 daga baya ita. A lokacin zero-crossing point, magnetic force na closed magnetic circuit da ya faru a cikin iron core na yawan wuya da iron core na yawan rike yana rage zuwa zero. Abubuwa na short-circuit ring (da ake fitowa a cikin static ko moving iron core) shine ya faru counter electromotive force idan alternating current yake gudanar da zero. Wannan counter electromotive force yana haifar da current a cikin short-circuit ring, kuma current yana faru magnetic field wanda yake haifar da iron core na yawan wuya da iron core na yawan rike suka gudanar da tsarin.

Idan short-circuit ring ya faru open circuit, abubuwar da suke faru ta rage. A lokacin zero-crossing point, iron core na yawan wuya yana rage under the action of the reset compression spring; bayan zero-crossing point, iron core na yawan wuya da iron core na yawan rike suka gudanar da tsarin. Wannan cycle yana duba daidai, wanda yake faru tafi ta kadan 100 daga baya ita—wanda yake impact sound da ya faru idan iron core na yawan wuya da iron core na yawan rike suka gudanar da tsarin.

Abubuwan Da Sune Faru

Load na three-phase zai iya zama da state na repeated starting and stopping, wanda yana iya baka load. Abubuwan da suke faru saboda auxiliary contacts suna daidai da cewa a bayan.

A cikin hakan, ya kamata a ku replace AC contactor, ko kuma a yi temporary use da copper wire don in make short-circuit ring as a substitute.