一、搖表和兆歐表區別在哪里
兆歐(ou)表和搖表是一個東西兩個名,用來(lai)測絕緣電阻,手搖的,攜帶方(fang)便(常用)。
1、定義不同
(1)兆歐(ou)(ou)(ou)表(biao):兆歐(ou)(ou)(ou)表(biao)(megger)俗稱,兆歐(ou)(ou)(ou)表(biao)大多采用(yong)手(shou)搖發(fa)電(dian)(dian)(dian)機供電(dian)(dian)(dian),故又稱搖它的刻度(du)是(shi)以(yi)兆歐(ou)(ou)(ou)(MΩ)為(wei)單(dan)位的。它是(shi)電(dian)(dian)(dian)工(gong)常(chang)用(yong)的一(yi)種測(ce)量儀表(biao),主(zhu)要(yao)用(yong)來檢(jian)查電(dian)(dian)(dian)氣(qi)設(she)備、家(jia)用(yong)電(dian)(dian)(dian)器或電(dian)(dian)(dian)氣(qi)線路對地及(ji)(ji)相(xiang)間的絕緣電(dian)(dian)(dian)阻,以(yi)保證這些設(she)備、電(dian)(dian)(dian)器和線路工(gong)作(zuo)在正(zheng)常(chang)狀態(tai),避免發(fa)生觸電(dian)(dian)(dian)傷亡及(ji)(ji)設(she)備損壞等事故。
(2)搖(yao)表:搖(yao)表,又名兆歐級(ji)電(dian)(dian)阻(zu)表,是為了避免事故(gu)發生,用(yong)于測量(liang)各種電(dian)(dian)器設(she)備的(de)絕(jue)緣電(dian)(dian)阻(zu)的(de)兆歐級(ji)電(dian)(dian)阻(zu)表,兆歐表用(yong)于測量(liang)絕(jue)緣電(dian)(dian)阻(zu)既方(fang)便(bian)又可靠。
2、組成不同
(1)兆歐表:兆歐表(biao)由中大規(gui)模(mo)集成(cheng)電(dian)路(lu)組成(cheng)。本表(biao)輸(shu)出(chu)功(gong)率大,短路(lu)電(dian)流(liu)值(zhi)高,輸(shu)出(chu)電(dian)壓(ya)等級(ji)多(duo)(每種機(ji)型有四(si)個電(dian)壓(ya)等級(ji))。
(2)搖(yao)表(biao):搖(yao)表(biao)由一(yi)個(ge)手搖(yao)發、表(biao)決和三個(ge)接線柱(即L:線路端、E:接地端、G:屏蔽端)組(zu)成。
3、應用不同
(1)兆(zhao)歐(ou)表:兆(zhao)歐(ou)表是電(dian)(dian)(dian)力、郵(you)電(dian)(dian)(dian)、通信、機(ji)(ji)電(dian)(dian)(dian)安(an)裝和(he)維修以(yi)及利用電(dian)(dian)(dian)力作為工(gong)業(ye)動力或能源的(de)工(gong)業(ye)企業(ye)部門常用而必不可少的(de)儀表。它適用于測(ce)量各種(zhong)絕緣(yuan)材(cai)料的(de)電(dian)(dian)(dian)阻值及變壓(ya)器(qi)、電(dian)(dian)(dian)機(ji)(ji)、電(dian)(dian)(dian)纜及電(dian)(dian)(dian)器(qi)設備等的(de)絕緣(yuan)電(dian)(dian)(dian)阻。
(2)搖(yao)表:廣(guang)泛用于煤(mei)礦安裝和檢(jian)修(xiu),是用于檢(jian)查電機、電器及線路的絕緣(yuan)情況和測量高值電阻。
二、搖表是直流還是交流
前文已經簡單了解了搖表和兆歐表區別在哪里,接著咱們就重點來了解搖表,如搖表是直流還是交流?
用(yong)來(lai)測量絕緣電(dian)阻(zu)的搖(yao)表(biao)發出的電(dian)是(shi)直流電(dian);而用(yong)來(lai)測量接(jie)地(di)電(dian)阻(zu)的接(jie)地(di)搖(yao)表(biao)發出的電(dian)就(jiu)是(shi)交流電(dian)。