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Faduwar hankali na gida na maimakon kungiyar AC da tsari mai yawa don ƙaramin ƙwacewa masu shaida na HVDC

Edwiin
Edwiin
فیلڈ: Makaranta karamin kwarewa
China

Saboda haka, Wani Yawancin Zama na Circuit Breaker, Tsarin Kirkiyar Kashi, Angalin Dukkar, Induktansa na Kirkiya da Kuma Tashar Girman Generator Suna Da Muhimmanci a Fagen Bayanin Don In Samu di/dt Mai Yawan Iliminta da Kuma In Bada Mafi Ingantaccen Kirkiya.

Ba da shiga kashi, stress dielectric ita ce zai iya bayarwa da ingantaccen sursurwar kirkiyar DC, amma wannan ya ba da wasu abubuwan lissafin. Capacitor yana baki da shiga a lokacin da aka gudanar da mafi inganta, da rikitar da TRV (Transient Recovery Voltage) na circuit breaker. Wannan zai iya amfani da shi don in ba da stress dielectric ba da shiga.

Diagram na test ta fi dace da abu na test (HVDC CB). Ana amfani da 3 generators na short-circuit da 3 transformers na step-up. Main breaker (MB) yana da kyau zuwa kashi na primary a kofin generator a kan wata loop. Turn-on switch (MS) yana bukatar da ake set da kashi mai cutar da shi don in samun "DC-like" conditions a lokacin da aka kiyaye kashi na DC CB. AC circuit breakers (ACB1) da triggered turn-on gaps suna zama da sabon abubuwa a cikin kirkiya don in ba da kashi isolation a cikin power circuit, don in sauka waɗanda za suka bude da kashi na DC da kuma in ba da protection na overcurrent.

Bayani Mai Tsawo

  1. Bayanan Fagen Bayanin:

    • Wani Yawancin Zama na Circuit Breaker: Wani yawancin zama na circuit breaker yana da muhimmanci don in ba da kashi interruption mai tsari.
    • Tsar Kirkiyar Kashi: Tsarin kirkiya da ke yi aiki a cikin kirkiya yana da kyau don in samun di/dt (rate of change of current) da take neman.
    • Angalin Dukkar: Angalin dukkar na circuit breaker yana taimakawa wajen samun alamomin kashi da kirkiya a lokacin da aka dukkar.
    • Induktansa na Kirkiya: Induktansa na kirkiya yana taimakawa wajen samun rate na kashi rise and fall.
    • Tashar Girman Generator: Tashar girman generator yana taimakawa wajen samun timing and synchronization na operations na circuit breaker.
  2. Stress Dielectric Ba Da Shiga Kashi:

    • Ingantaccen Sursurwar Kirkiyar DC: Ba da stress dielectric ba da shiga kashi da ingantaccen sursurwar kirkiyar DC ita ce wani hali da yake da kyau, amma wannan ya ba da wasu abubuwan lissafin.
    • Capacitor Mai Shiga: Capacitor yana baki da shiga a lokacin da aka gudanar da mafi inganta, da rikitar da TRV na circuit breaker. Wannan zai iya tabbatar da stress dielectric ba da shiga.
  3. Kirkiyar Test Configuration:

    • Generators na Short-Circuit da Transformers na Step-Up: Setup na test ana amfani da 3 generators na short-circuit da 3 transformers na step-up don in fage hali mai cutar da fault.
    • Main Breaker (MB): Main breaker yana zuwa kashi na primary a kofin generator a kan wata loop, don in ba da yanayi mai kontrola don in fage hali.
    • Turn-On Switch (MS): Turn-on switch yana bukatar da ake set da kashi mai cutar da shi don in samun "DC-like" conditions a lokacin da aka kiyaye kashi na DC CB.
    • AC Circuit Breakers (ACB1) da Triggered Turn-On Gaps: Waɗannan abubuwa suna zama da sabon abubuwa a cikin kirkiya don in ba da kashi isolation, don in sauka waɗanda za suka bude da kashi na DC da kuma in ba da protection na overcurrent.

Ta haka, idan ake yi rayuwa da wasu bayanan fagen bayanin da kuma ake faɗa kirkiyar test daidai, yana da kyau in iya faɗa da tabbatar da performance na HVDC circuit breakers a kan wasu hali na aiki.

Ba da kyau kuma kara mai rubutu!
Makarantarƙi:
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