Kaidi Don Ina Amfani Da Kirkiro Kontakta Na Farko: Bayanin Aikace-Aikacen Da Gincin Kula

1. Amfani na Low-Voltage Vacuum Contactors

Low-voltage vacuum contactors suna da muhimmanci a cikin hanyar jirgin sama ta 50Hz da tsari mai karatuwa ta 1140V, 660V, 500V, ko kuma 380V a cikin hanyar yawan sama. Suna amfani a kan ido da kuma gudanar da hanyoyi kadan-kadan, tare da kula da kumatar mafi inganci da kuma kula da abubuwan kwakwalwa. Suna da muhimmanci a wurare da mutane da kasa da kuma abubuwan da ake yi da kadan-kadan.

2. Turancin Low-Voltage Vacuum Contactors

Kamar yadda ake nuna a cikin zabe, low-voltage vacuum contactor yana da tsari mai karatuwa, coil na kula, switch na daya, spring na iya, crank arm, base, da sauransu. Daga cikinsu, babban muhimmiyar yanayi, vacuum switch tube, yana da tsari mai karatuwa. A cikin shakalin mai karatuwa, akwai kontakun mai karatuwa da kuma kontakun bace, shielding cover, conductive rods, da sauransu. Turancin vacuum switch tube yana nufin a cikin zabe a nan.

3. Muhimman Tsarin Low-Voltage Vacuum Contactors

Idan coil na kula ta mekanismi ya faru, armature na electromagnet ya jawo. Tun daga transmission mechanism na moving armature plate, conductive rod na arc-extinguishing chamber na three-phase vacuum switch tube ya kula don samun zuwa, wanda ya haɗa da kula da contactor. Idan coil ya faru, armature ya fitowa ne tun daga opening spring, kuma transmission mechanism ya kula don samun rike, wanda ya haɗa da kula da contactor. Haka ce, ana kula da kuma gudanar da hanyoyi, kuma diagramin electrical principle ya nuna a cikin zabe a nan.

Idan voltage na kontrol power supply ya zama 380V, ya kamata a fadada RC (resistor-capacitor) absorption device a cikin electromagnetic coil; idan voltage na kontrol power supply ya zama 36V, 110V, ko kuma 220V, amma ba a son sparking a kan auxiliary switch, za a iya fadada RC absorption device a cikin electromagnetic coil (wanda ake nuna a cikin dashed lines).

4. Diagnosis da Maintenance na Low-Voltage Vacuum Contactors

4.1 Ba Ta Iya Kula

• Idan voltage na power supply ya fiye, zaka iya karatuwa.

• Idan voltage na power supply ba ta daidai da rated voltage na contactor, ka zaka voltage ko ka barce vacuum contactor.

• Idan wiring na circuit ba ta daidai, ka duba wiring diagram da ka zaka wiring.

• Idan connecting wires ba su daidai ko screws suka lalace, ka duba wiring da ka lalace screws.

• Idan control contacts ba su daidai, ka duba resistance da ka sake sautawa.

• Idan fuse element ya kusa, ka barce fuse element.

• Idan coil ya kusa, ka barce coil.

• Idan diode ya kusa, ka barce diode.

• Idan switch tube ya kusa, ka duba negative pressure da ka barce switch tube idan an bukata.

4.2 Ba Ta Iya Gudanar

• Idan voltage na power supply ya fiye, zaka iya karatuwa.

• Idan voltage na power supply ba ta daidai da rated voltage na contactor, ka zaka voltage ko ka barce vacuum contactor.

• Idan wiring na circuit ba ta daidai, ka zaka wiring.

• Idan coil ya kusa, ka barce coil.

4.3 Coil Ya Tashin Noma, Ko Kuma Yanzu Kusa

• Idan voltage na power supply ba ta daidai da rated voltage na coil, ka zaka voltage don kuwa daidai da rated voltage na coil.

• Idan connecting wires ba su daidai ko screws suka lalace, ka duba circuit da ka lalace screws.

• Idan auxiliary switch contacts suka kusa ko ba su iya kula, ka duba auxiliary switch da ka barce idan an bukata.

4.4 Surface Leakage na Switch Tube

Idan akwai abubuwan gargajiya ko ruwa a cikin surface na switch tube, wanda ya haɗa da surface leakage, ka duba insulation resistance na switch tube da ka sake sautawa shell na switch tube.

4.5 Diode Breakdown

Idan voltage na power supply ba ta daidai da rated voltage na diode, wanda ya haɗa da diode breakdown, ka zaka voltage ko ka barce diode da take daidai da voltage.

4.6 Overheating na Energized Parts

Idan overheating ya faru saboda poor contact na connecting wires, ka duba circuit da ka lalace screws don kuwa da good contact.