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              交流接觸器短路環的工作原理

              來源:http://www.cekidots.com/ 日期:2022-01-25 發布人:admin

              1、短路環工作原理及作用

              1. Working principle and function of short circuit ring
              交流接觸器的鐵心由硅鋼片疊壓而成,這樣可以減少交變磁通在鐵心中的渦流和磁滯損耗。
              The iron core of AC contactor is made of silicon steel sheets, which can reduce the eddy current and hysteresis loss of alternating magnetic flux in the iron core.
              在有交變電流通過電磁線圈時,線圈對銜鐵的吸引力也是交變的,當交流電流通過零值時,線圈磁通變為零,對銜鐵的吸引力也為零。
              When an alternating current passes through the electromagnetic coil, the attraction of the coil to the armature is also alternating. When the alternating current passes through zero, the magnetic flux of the coil becomes zero and the attraction to the armature is also zero.
              銜鐵在復位彈簧作用下將產生釋放趨勢,這使動靜鐵心之間的吸引力隨著交流電的變化而變化,從而產生變化和噪聲'加速動靜鐵心接觸產生的磨損,引起給合不良.嚴重時還會使觸點燒蝕。
              ABB接觸器代理
              The armature will have a release trend under the action of the return spring, which makes the attraction between the dynamic and static iron cores change with the change of AC, resulting in change and noise, accelerating the wear caused by the contact between the dynamic and static iron cores and causing poor closing In severe cases, it will also cause contact ablation.
              為了消除此弊端.在鐵心柱端面的一部分嵌入一只銅環,名為/短路環/,該短路環相當于變壓器的副邊繞組,在線圈通入交流電時不僅線圈產生磁通。
              In order to eliminate this disadvantage A copper ring named / short-circuit ring / is embedded in a part of the end face of the core column. The short-circuit ring is equivalent to the secondary winding of the transformer. When the coil is connected with AC, not only the coil generates magnetic flux.
              交流接觸器短路環
              Short circuit ring of AC contactor
              2、短路環中的感應電流也產生磁通
              2. The induced current in the short-circuit ring also generates magnetic flux
              此時短路環相當于純電感電路,從純電感電路的相位可知,線圈電流磁通與短路環感應電流磁通不同時為零.即電源輸入的交變電流通過零值時短路環感應電流不為零。
              At this time, the short-circuit loop is equivalent to a pure inductance circuit. From the phase of the pure inductance circuit, the coil current flux and the induced current flux of the short-circuit loop are not zero at the same time That is, when the alternating current input by the power supply passes through the zero value, the induced current of the short-circuit ring is not zero.
              此時它的磁通對銜鐵對將起著吸咐作用,從而克服了銜鐵被釋放的趨勢.使銜鐵在通電過程總是處于吸合狀態,明顯減少了振動噪聲,所以短路環又名消振環。
              At this time, its magnetic flux will attract the armature pair, thus overcoming the trend of armature being released The armature is always in the pull in state during the energization process, which significantly reduces the vibration and noise, so the short-circuit ring is also known as the vibration elimination ring.
              3、材料
              3. Materials
              通常由康銅或鎳鉻合金制成。
              It is usually made of constantan or nickel chromium alloy.
              ABB接觸器代理專注為您提供新鮮的行業資訊,更多的問題及精彩內容請關注我們的網站:http://www.cekidots.com,我們會有更多的精彩內容為您
              ABB contactor agent focuses on providing you with fresh industry information. For more questions and wonderful contents, please pay attention to our website: http://www.cekidots.com , we will have more wonderful content for you


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