Gwamnati da takardun kasa a tashin kasa mai injiki masu yawa da tushen lokaci

Zabintu na nufin tushen karamin kashi da karamin kashi. Idan DCCB (Direct Current Circuit Breaker) yake da aiki a hali na masu yawan (Circuit Breaker S1 da Residual Current Circuit Breaker S2 suka faɗi, S3 ya fiye), wanda zai fara a yi aiki na kafin cikin yawa. Aikin ya faruwa ne a kan relay ta inganci. A nan, lokacin relay ita ce 2ms. Bayan samun shiga don trip, switch S1 ya fara a yi aiki. Idan ya ci gaba har zuwa wani wurin da za su iya saukar da karamin kashi da ke faruwa a cikin yawa, circuit na resonance ya faruwa ne bayan samun reverse current tun daga switch S3. Wannan ya haɗa waɗanda mafi tsawo a cikin circuit breaker (S1), sannan duka karamin kashi ya faruwa ne a kan branch na resonance, wanda yana haɗa voltage na capacitor zuwa gaba. Idan voltage na capacitor ya ci gaba har zuwa clamping voltage na surge arrester (SA), karamin kashi da ke faruwa a cikin circuit breaker (S1) ya fara a rufe.

Lokacin da aka samu shiga don trip zuwa lokacin da aka faruwa reverse voltage, yana cikin shekaru 8ms, idan ake amfani da activation masu yawa da commutation na karamin kashi.
Sannan, energy na cikin system ya fara a rufe a kan surge arrester (SA), idan ake amfani da hali na system.

Rike Mai Taimaka
Hali na aiki:

• Circuit Breaker S1 da Residual Current Circuit Breaker S2 suka faɗi.
• High-Speed Switch S3 ya fiye.

Aikin ya faruwa ne:

Relay ta inganci ya samu fault kuma ya faruwa shiga don trip, idan ake amfani da lokacin relay ita ce 2ms.

Switch S1 Ya Yi Aiki:

• Bayan samun shiga don trip, high-speed mechanical circuit breaker S1 ya fara a yi aiki.
• Idan S1 ya ci gaba har zuwa wani wurin da za su iya saukar da karamin kashi da ke faruwa a cikin yawa, circuit na resonance ya faruwa ne.

Injection of Reverse Current:

• Circuit na resonance ya faruwa ne bayan samun reverse current tun daga high-speed switch S3.
• Wannan ya haɗa waɗanda mafi tsawo a cikin circuit breaker S1, sannan duka karamin kashi ya faruwa ne a kan branch na resonance, wanda yana haɗa voltage na capacitor zuwa gaba.

Rapid Current Reduction:

Idan voltage na capacitor ya ci gaba har zuwa clamping voltage na surge arrester (SA), karamin kashi da ke faruwa a cikin circuit breaker S1 ya fara a rufe.

Energy Dissipation:

• Lokacin da aka samu shiga don trip zuwa lokacin da aka faruwa reverse voltage, yana cikin shekaru 8ms, idan ake amfani da activation masu yawa da commutation na karamin kashi.
• Energy na cikin system ya fara a rufe a kan surge arrester (SA), idan ake amfani da hali na system.
• Tun daga wannan rike mai taimaka, DCCB zai iya aiki da damar in kawo karamin kashi da kuma in mamaye system daga hali na fault.

Component Detail

• S1: High-Speed Mechanical Circuit Breaker
• S2: Residual Current Circuit Breaker
• S3: High-Speed Switch
• SA: Surge Arrester