MYA-LBDE 熱繼電器JR20-160
| 參考價(jià) | ￥ 180 |
| 訂貨量 | ≥1 臺(tái) |
- 公司名稱(chēng) 上海雙旭電子有限公司
- 品牌 其他品牌
- 型號(hào) MYA-LBDE
- 產(chǎn)地
- 廠商性質(zhì) 生產(chǎn)廠家
- 更新時(shí)間 2024/9/29 17:52:30
- 訪問(wèn)次數(shù) 2937
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| 供貨周期 | 現(xiàn)貨 | 應(yīng)用領(lǐng)域 | 電子/電池 |
|---|
熱繼電器JR20-160
的詳細(xì)介紹該系列熱過(guò)載繼電器適用于交流50Hz/60Hz、電壓至660V,、電流0.1～630A的長(zhǎng)期工作或間斷長(zhǎng)期工作的交流電動(dòng)機(jī)的過(guò)載與斷相保護(hù),。
熱繼電器具有斷相保護(hù)、溫度補(bǔ)償,、動(dòng)作指示,、自動(dòng)與手動(dòng)復(fù)位、手動(dòng)斷開(kāi)常閉觸頭的檢驗(yàn)按鈕,、動(dòng)作可靠,。可與接觸器接插安裝,，也可獨(dú)立安裝,。
熱繼電器JR20-160
繼電器是一種靠電磁感應(yīng)工作的自動(dòng)化電器開(kāi)關(guān)。
繼電器的工作原理和特性
繼電器是一種電子控制泰件,，它具有控制系統(tǒng)(義稱(chēng)輸入回路)和被控制系統(tǒng)(義稱(chēng)輸出口路),，通常應(yīng)用于自動(dòng)控制電
路中，它實(shí)際上是用較小的電流去控制較大電流的一種“自動(dòng)開(kāi)關(guān)”,。故在電路中起著自動(dòng)調(diào)節(jié),、安全保護(hù)、轉(zhuǎn)換電路
等作用,。
1,、電磁繼電器的工作原理和特性
電磁式繼電器一般由鐵芯、線圈,，銜鐵,，觸點(diǎn)等片等組成的。只要在線圈兩端加上一定的電床,，線圈中就會(huì)流過(guò)一定
的電流,，從而產(chǎn)生電磁效應(yīng)，銜鐵就會(huì)在電磁力吸引的作用下克服返回彈策的拉力吸向鐵芯,，從而帶動(dòng)銜鐵的動(dòng)觸點(diǎn)
與靜觸點(diǎn)(常開(kāi)觸點(diǎn))吸合,。當(dāng)線圈斷電后，電磁的吸力也隨之消失,，銜鐵就會(huì)在彈簧的反作用力返回原來(lái)的位置,，使
動(dòng)觸點(diǎn)與原來(lái)的靜觸點(diǎn)(常閉觸點(diǎn))吸合,。這樣吸合、釋放,，從而達(dá)到了在電路中的導(dǎo)通,、切斷的目的。對(duì)于繼電器的
“常開(kāi),、常閉”觸點(diǎn),，可以這樣來(lái)區(qū)分:繼電器線圈未通電時(shí)處于斷開(kāi)狀態(tài)的靜觸點(diǎn)，稱(chēng)為“常開(kāi)觸點(diǎn)”;處于接通狀態(tài)
的靜觸點(diǎn)稱(chēng)為“常閉觸點(diǎn)”,。
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