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              ABB斷路器中的低壓斷路器是什么

              來源:http://www.cekidots.com/ 日期:2021-11-02 發布人:tongjid

              低壓斷路器的主觸點是靠手動操作或電動合閘的。主觸點閉合后,自由脫扣機構將主觸點鎖在合閘位置上。過電流脫扣器的線圈和熱脫扣器的熱元件與主電路串聯,欠電壓脫扣器的線圈和電源并聯。

              The main contact of low-voltage circuit breaker is closed manually or electrically. After the main contact is closed, the free tripping mechanism locks the main contact in the closing position. The coil of the overcurrent release and the thermal element of the thermal release are connected in series with the main circuit, and the coil of the undervoltage release is connected in parallel with the power supply.
              當電路發生短路或嚴重過載時,過電流脫扣器的銜鐵吸合,使自由脫扣機構動作,主觸點斷開主電路。
              In case of short circuit or serious overload of the circuit, the armature of the overcurrent release is pulled in to make the free tripping mechanism act, and the main contact disconnects the main circuit.
              當電路過載時,熱脫扣器的熱元件發熱使雙金屬片上彎曲,推動自由脫扣機構動作,主觸點斷開主電路。
              When the circuit is overloaded, the thermal element of the thermal release generates heat, bends the bimetallic sheet, pushes the free release mechanism to act, and the main contact disconnects the main circuit.
              當電路欠電壓時,欠電壓脫扣器的銜鐵釋放,也使自由脫扣機構動作,主觸點斷開主電路。
              When the circuit is under voltage, the armature of the under voltage release releases, which also makes the free release mechanism act, and the main contact disconnects the main circuit.
              (1)當按下分勵脫扣按鈕時,分勵脫扣器銜鐵吸合,使自由脫扣機構動作,主觸點斷開主電路⑴額定電壓斷路器銘牌上的額定電壓是指斷路器主觸頭的額定電壓,是保證接觸器觸頭長期正常工作的電壓值。
              (1) When the shunt release button is pressed, the armature of the shunt release is pulled in to make the free release mechanism act, and the main contact disconnects the main circuit ⑴ rated voltage the rated voltage on the nameplate of the circuit breaker refers to the rated voltage of the main contact of the circuit breaker, which is the voltage value to ensure the long-term normal operation of the contactor contact.
              (2)額定電流接觸器銘牌上的額定電流是指路器主觸頭的額定電流,是保證接觸器觸頭長期正常工作的電流值。
              (2) The rated current on the nameplate of the rated current contactor refers to the rated current of the main contact of the circuit breaker and is the current value to ensure the long-term normal operation of the contactor contact.
              ⑶脫扣電流脫扣電流是使過電流脫扣器動作的電流設定值,當電路短路或負載嚴重超載,負載電流大于脫扣電流時,斷路器主觸頭分斷。
              (3) tripping current tripping current is the current setting value that causes the overcurrent release to act. When the circuit is short circuited or the load is seriously overloaded and the load current is greater than the tripping current, the main contact of the circuit breaker will be disconnected.
              ⑷過載保護電流、時間曲線過載保護電流、時間曲線,為反時限特性曲線,過載電流越大,熱脫扣器動作的時間就越短。
              (4) overload protection current and time curve. Overload protection current and time curve are inverse time characteristic curves. The greater the overload current, the shorter the action time of the thermal release.
              ⑸欠電壓脫扣器線圈的額定電壓欠電壓脫扣器線圈的額定電壓一定要等于線路額定電壓。
              (5) rated voltage of under voltage release coil the rated voltage of under voltage release coil must be equal to the line rated voltage.
              ⑹分勵脫扣器線圈的額定電壓分勵脫扣器線圈的額定電壓一定要等于控制控制電源電壓。
              (6) the rated voltage of the shunt release coil must be equal to the control power supply voltage.
              ⑺額定極限短路分斷能力
              (7) rated limit short circuit breaking capacity
              以上就是ABB微型斷路器http://www.cekidots.com/為大家介紹的內容,感謝您在百忙之中查看我公司的信息內容,如果您想要了解的更多,歡迎您來電進行咨詢。
              The above is ABB miniature circuit breaker http://www.cekidots.com/ Thank you for checking the information of our company in your busy schedule. If you want to know more, you are welcome to call for consultation.


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