CT40 Spring operated mechanism (dual auxiliary switch) Mechanism na CT40 mai spring (dual auxiliary switch)

A CT-40 spring operated mechanism na da shi don yaƙe LW35-40.5 self charging SF6 circuit breakers da switch cabinets da ingancin zafi mai yawa da circuit breakers. Yana iya haɓaka body na circuit breaker don yaƙe hanyar kwallon da rike, wanda yake daɗe da dama. An yi amfani da spring energy storage a matsayin masu shakka, tare da dual auxiliary switches don yaƙe ingantaccen kontrol da feedback na tasiri, yana da amfani a cikin 10kV-40.5kV medium voltage distribution systems, industrial substations, da distribution networks, wanda ke bayar da shakka mai yawa da karkashin daidai ga yaƙe hanyar kwallon da rike da switchgear da kuma daɗe da safe operation na power systems.
1、 Core working principle: Collaborative control of spring energy storage and dual auxiliary switch
1. Spring energy storage mechanism
An yi amfani da cylindrical spiral springs a matsayin core energy storage component a CT40 mechanism, kuma an yi amfani da hanyar manual ko electric don samun shakka:
Electric energy storage: Motor yana haɓaka reduction gear set, wanda yana haɓaka energy storage shaft don zuwa karama da kuma maimaita closing spring tun daga cam mechanism; Idan spring ya karama har zuwa rated stroke, energy storage pawl da ratchet ke gudanar, sannan stroke switch ke ji motor daɗi don koma, wanda yake daɗe da samun shakka (energy storage time ≤ 15s). A lokacin, mechanism na da shi a cikin state of waiting to be closed.
Manual energy storage: Idan motor ce ta kasance ko ba a da shakka, za a yi karama energy storage shaft da hanyar shaking the handle, za a duba maimaita spring da gudanar da suka bayar a cikin, kuma za a tabbatar da a lada samun shakka a cikin emergency situations.
2. Logic of opening and closing actions
Closing operation: Idan an samu closing signal, closing electromagnet za a yi shi, za a fito energy storage pawl, sannan closing spring za a fito shakka, za a haɓaka moving contact na switch device don kallonta tun daga connecting rod transmission mechanism; Ba a kan closing is completed, opening spring za a karama synchronously don samun shakka, don tattaunawa don opening operation.
Opening operation: Idan an samu opening signal, opening electromagnet (ko manual opening handle) za a yi shi, opening lock za a fito, opening spring za a fito shakka, sannan transmission mechanism za a haɓaka don kawo moving contact don kawo, cutting off the circuit (opening time ≤ 25ms, ensuring quick disconnection of fault current).
3. The core function of dual auxiliary switches
Duk da cewa single auxiliary switch model, dual auxiliary switch design na CT40 na da "functional separation and redundancy guarantee", with specific functions including:
State feedback switch: Real time monitoring of the "energy storage status" (stored/not stored) and "closing status" (fully closed/fully opened) na mechanism, transmitting status signals to the distribution automation system (such as SCADA) for remote monitoring of equipment operation status.
Control interlock switch: Implement logical interlocking of "energy storage closing" and "opening closing", for example: the closing circuit is only connected when the mechanism completes energy storage (triggered by the status feedback switch); When the opening is not in place, the closing operation is locked to prevent equipment damage caused by misoperation and improve operational safety.