漏電保護開關

A.漏電(dian)保護開關概(gai)念：

既具(ju)(ju)備(bei)漏(lou)電保護功(gong)能(neng)，人(ren)觸摸到帶電體(ti)會跳閘，確保人(ren)身安全，是漏(lou)電保護器(qi)的主要功(gong)能(neng)；用(yong)電設備(bei)如果絕緣不好漏(lou)電到外(wai)殼(ke)上，漏(lou)電保護器(qi)也(ye)會跳閘，避免人(ren)體(ti)觸摸觸電。同時具(ju)(ju)備(bei)電流通斷功(gong)能(neng)、過負荷(he)保護和短路保護功(gong)能(neng)。

B. 漏電保護開關的(de)工作原理：

漏電(dian)(dian)保(bao)護器的工(gong)作原理圖(tu)。圖(tu)中(zhong)(zhong)LH為(wei)零序電(dian)(dian)流互感(gan)器，它由坡莫合金為(wei)材料(liao)的鐵芯(xin)，和(he)(he)繞(rao)在環狀(zhuang)鐵芯(xin)上(shang)的二(er)次線(xian)(xian)(xian)圈組成(cheng)檢測元件。電(dian)(dian)源相(xiang)線(xian)(xian)(xian)和(he)(he)中(zhong)(zhong)性線(xian)(xian)(xian)穿過圓孔成(cheng)為(wei)零序互感(gan)器的一次線(xian)(xian)(xian)圈。互感(gan)器的后(hou)部(bu)出線(xian)(xian)(xian)即為(wei)保(bao)護范圍。

C.漏電保護開關的(de)作用:

1、當電氣設(she)備或(huo)線路(lu)發生(sheng)漏電或(huo)接(jie)地故障(zhang)時，能(neng)在(zai)人(ren)尚未觸及(ji)之前就把(ba)電源(yuan)切斷。2、當人(ren)體觸及(ji)帶電的物體時，能(neng)在(zai)011s內切斷電源(yuan)，從而減輕電流(liu)對人(ren)體的傷害程度。3、可以防止因漏電而引起的火災(zai)事故。

3．雙電源自動(dong)轉換開(kai)關：

A.雙電(dian)源自(zi)動轉(zhuan)換開關的概(gai)念:

雙電(dian)(dian)(dian)(dian)源(yuan)自動(dong)轉(zhuan)換(huan)開(kai)(kai)關(guan)為電(dian)(dian)(dian)(dian)源(yuan)二(er)選(xuan)一自動(dong)切(qie)換(huan)系統，第一路出現故障(zhang)后雙電(dian)(dian)(dian)(dian)源(yuan)自動(dong)轉(zhuan)換(huan)開(kai)(kai)關(guan)自動(dong)切(qie)換(huan)到(dao)第二(er)路給負載(zai)供(gong)電(dian)(dian)(dian)(dian)，第二(er)路故障(zhang)的(de)話雙電(dian)(dian)(dian)(dian)源(yuan)自動(dong)轉(zhuan)換(huan)開(kai)(kai)關(guan)自動(dong)切(qie)換(huan)到(dao)第一路給負載(zai)供(gong)電(dian)(dian)(dian)(dian)。 適合用于UPS-UPS，UPS-發電(dian)(dian)(dian)(dian)機，UPS-市電(dian)(dian)(dian)(dian)，市電(dian)(dian)(dian)(dian)-市電(dian)(dian)(dian)(dian)等任(ren)意兩(liang)路電(dian)(dian)(dian)(dian)源(yuan)的(de)不斷電(dian)(dian)(dian)(dian)轉(zhuan)換(huan)。