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賀德克壓力繼電器的工作原理和特性　　

電磁式繼電器(qi)一(yi)般由鐵(tie)(tie)芯、線圈、銜鐵(tie)(tie)等組成的。

（1）只要在線(xian)圈(quan)兩端加上一定的(de)電壓，線(xian)圈(quan)中就會流過一定的(de)電流，從而(er)產生(sheng)電磁(ci)效應，銜鐵就會在電磁(ci)力(li)吸(xi)引的(de)作用(yong)下(xia)克服返回彈簧的(de)拉力(li)吸(xi)向鐵芯，從而(er)帶動(dong)銜鐵的(de)動(dong)觸(chu)點(dian)與(yu)靜觸(chu)點(dian)（常開觸(chu)點(dian)）吸(xi)合(he)。

（2）當(dang)線圈斷電后，電磁的(de)吸力(li)也隨之消失，銜鐵就會在彈(dan)簧的(de)反(fan)作用力(li)返回原(yuan)來的(de)位置，使(shi)動觸點與原(yuan)來的(de)靜(jing)觸點（常閉觸點）釋放。這樣吸合、釋放，從而達(da)到了在電路中的(de)導(dao)通(tong)、切斷的(de)目的(de)。

（3）對于繼電(dian)器(qi)的(de)“常(chang)開(kai)、常(chang)閉”觸點，可以(yi)這樣來區(qu)分：繼電(dian)器(qi)線圈未通電(dian)時處于斷開(kai)狀態的(de)靜觸點，稱為(wei)“常(chang)開(kai)觸點”；處于接通狀態的(de)靜觸點稱為(wei)“常(chang)閉觸點”。

賀德克壓力繼電器

的(de)(de)(de)(de)(de)技術參考(kao) 1、額(e)定(ding)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓 是(shi)(shi)(shi)指(zhi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)正常(chang)工(gong)(gong)作(zuo)(zuo)時線(xian)圈(quan)所(suo)(suo)需(xu)要的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，也就是(shi)(shi)(shi)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)(de)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓。根據(ju)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)(de)型號不同，可以是(shi)(shi)(shi)交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，也可以是(shi)(shi)(shi)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓。 2、直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu) 是(shi)(shi)(shi)指(zhi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)中(zhong)線(xian)圈(quan)的(de)(de)(de)(de)(de)直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)，可以通過萬能表(biao)測量。 3、吸(xi)(xi)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu) 是(shi)(shi)(shi)指(zhi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)能夠產生吸(xi)(xi)合(he)動作(zuo)(zuo)的(de)(de)(de)(de)(de)zui小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。在正常(chang)使用時，給定(ding)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)必須略(lve)大(da)于吸(xi)(xi)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，這(zhe)樣繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)才能穩(wen)定(ding)地工(gong)(gong)作(zuo)(zuo)。而(er)對于線(xian)圈(quan)所(suo)(suo)加的(de)(de)(de)(de)(de)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，一般不要超過額(e)定(ding)工(gong)(gong)作(zuo)(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)(de)1.5倍(bei)，否則會產生較大(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)而(er)把線(xian)圈(quan)燒毀。 4、釋(shi)放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu) 是(shi)(shi)(shi)指(zhi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)產生釋(shi)放(fang)(fang)動作(zuo)(zuo)的(de)(de)(de)(de)(de)zui大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。當繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)吸(xi)(xi)合(he)狀態(tai)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)減小(xiao)到一定(ding)程度(du)時，繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)就會恢復到未通電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)(de)釋(shi)放(fang)(fang)狀態(tai)。這(zhe)時的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)遠(yuan)遠(yuan)小(xiao)于吸(xi)(xi)合(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。 5、觸點切(qie)換電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu) 是(shi)(shi)(shi)指(zhi)繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)允許加載的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)。它(ta)決(jue)定(ding)了繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)能控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)大(da)小(xiao)，使用時不能超過此值，否則很(hen)容易損壞繼(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)(de)觸點。

賀德克壓力繼電器

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