NZMN2-AF150-NA對(duì)俄制裁導(dǎo)致能源價(jià)格飆升
我們的優(yōu)勢(shì)
① 擁有進(jìn)出口權(quán)
② 自貿(mào)區(qū)優(yōu)勢(shì)
③ 完善的配套資源
④ 與廠商長(zhǎng)期合作 (歐.美.日)
我們的理想;進(jìn)取 ! 求實(shí) !嚴(yán)謹(jǐn) !團(tuán)結(jié) !
我們的服務(wù):供應(yīng)大型DCS系統(tǒng)備件、進(jìn)口工業(yè)機(jī)器人備件、
大型伺服系統(tǒng)電機(jī)驅(qū)動(dòng)器、變頻器、電磁閥、氣缸、流量計(jì)、傳感器、安全柵、溫控器等產(chǎn)品。廣泛服務(wù)于電子。電力。ye金?;?。汽車制造、機(jī)床,包裝機(jī)械,機(jī)械設(shè)備等眾多領(lǐng)域。
福州佳盛和電子貿(mào)易有限公司
聯(lián)系人:張經(jīng)理
咨詢熱線:18750780683(wx同號(hào))
QQ:1768625723
控制原理與特點(diǎn):
(1) 轉(zhuǎn)換開(kāi)關(guān)SA1(或SA2)的旋轉(zhuǎn)按鈕置于Ⅰ(開(kāi)),三相電源與電動(dòng)機(jī)接通,砂輪電機(jī)起動(dòng)運(yùn)轉(zhuǎn),置于位置Ⅱ(關(guān)),砂輪電機(jī)停。因組合開(kāi)關(guān)沒(méi)有短路保護(hù)功能,所以電路中接入熔斷器的閘刀開(kāi)關(guān)或鐵殼開(kāi)關(guān),也可以是斷路器,用它來(lái)隔離電源,并起到短路保護(hù)作用。
(2) 由于砂輪與電機(jī)軸的連接是用螺帽固定的,所以砂輪罩殼上用箭頭指示了砂輪的旋轉(zhuǎn)方向,如果反向旋轉(zhuǎn),有可能因旋轉(zhuǎn)慣性使螺帽松開(kāi)而造成高速旋轉(zhuǎn)的砂輪飛出的重大事故。在接砂輪電機(jī)的電源時(shí),切記先試它的轉(zhuǎn)向是否與箭頭方向一致。
2.轉(zhuǎn)換開(kāi)關(guān)(組合開(kāi)關(guān))和轉(zhuǎn)換開(kāi)關(guān)
(1) 組合開(kāi)關(guān)
轉(zhuǎn)換開(kāi)關(guān)又稱組合開(kāi)關(guān),圖1-10是HZ10系列組合開(kāi)關(guān)外形與結(jié)構(gòu)圖。轉(zhuǎn)換開(kāi)關(guān)實(shí)質(zhì)上是一種特殊刀開(kāi)關(guān),是操作手柄在與安裝面平行的平面內(nèi)左右轉(zhuǎn)動(dòng)的刀開(kāi)關(guān)。只不過(guò)一般刀開(kāi)關(guān)的操作手柄是在垂直安裝面的平面內(nèi)向上或向下轉(zhuǎn)動(dòng),而組合開(kāi)關(guān)的操作手柄則是平行于安裝面的平面內(nèi)向左或向右轉(zhuǎn)動(dòng)而已。多用在機(jī)電氣控制線路中,作為電源的引入開(kāi)關(guān),也可以用作不頻繁地接通和斷開(kāi)電路、換接電源和負(fù)載以及控制5KW以下的小容量電動(dòng)機(jī)的正反轉(zhuǎn)和星三角起動(dòng)等。
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