一、搖表和兆歐表區別在哪里
兆(zhao)歐表(biao)(biao)和搖表(biao)(biao)是一(yi)個東西兩個名,用(yong)來測(ce)絕緣電阻,手搖的,攜帶方便(常用(yong))。
1、定義不同
(1)兆(zhao)歐表:兆(zhao)歐表(megger)俗稱,兆(zhao)歐表大多采用手(shou)搖(yao)發電機(ji)供電,故又稱搖(yao)它(ta)的(de)刻(ke)度是以(yi)兆(zhao)歐(MΩ)為(wei)單(dan)位的(de)。它(ta)是電工常(chang)用的(de)一種測(ce)量(liang)儀表,主要用來檢查電氣(qi)設備、家用電器或電氣(qi)線(xian)路對地及相間的(de)絕緣電阻,以(yi)保(bao)證這些設備、電器和線(xian)路工作在正常(chang)狀態,避免發生觸電傷亡及設備損壞等事(shi)故。
(2)搖表:搖表,又(you)名(ming)兆(zhao)歐級電(dian)(dian)(dian)阻表,是為了避免(mian)事故發生,用(yong)于測(ce)量各種(zhong)電(dian)(dian)(dian)器設備的絕緣電(dian)(dian)(dian)阻的兆(zhao)歐級電(dian)(dian)(dian)阻表,兆(zhao)歐表用(yong)于測(ce)量絕緣電(dian)(dian)(dian)阻既方便又(you)可靠。
2、組成不同
(1)兆歐表:兆歐表由中大規模集成(cheng)電路(lu)組成(cheng)。本表輸出功率大,短(duan)路(lu)電流(liu)值高,輸出電壓等級多(duo)(每種機型有四個電壓等級)。
(2)搖(yao)表(biao)(biao):搖(yao)表(biao)(biao)由一個手搖(yao)發(fa)、表(biao)(biao)決和三個接線(xian)柱(zhu)(即L:線(xian)路端(duan)(duan)、E:接地端(duan)(duan)、G:屏蔽(bi)端(duan)(duan))組成。
3、應用不同
(1)兆(zhao)歐表(biao):兆(zhao)歐表(biao)是電(dian)(dian)(dian)力、郵(you)電(dian)(dian)(dian)、通信、機(ji)電(dian)(dian)(dian)安(an)裝和維修以及(ji)(ji)利用(yong)電(dian)(dian)(dian)力作為工(gong)業(ye)(ye)動力或能源的工(gong)業(ye)(ye)企業(ye)(ye)部門常用(yong)而(er)必不可少的儀表(biao)。它適用(yong)于測量各種絕(jue)緣材料的電(dian)(dian)(dian)阻值(zhi)及(ji)(ji)變(bian)壓器、電(dian)(dian)(dian)機(ji)、電(dian)(dian)(dian)纜(lan)及(ji)(ji)電(dian)(dian)(dian)器設備等的絕(jue)緣電(dian)(dian)(dian)阻。
(2)搖表:廣泛用于煤礦安(an)裝和檢修,是用于檢查(cha)電機、電器及(ji)線路的絕緣(yuan)情況和測量高(gao)值(zhi)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?
用來(lai)測(ce)量絕緣電(dian)(dian)(dian)(dian)阻的(de)搖表發出(chu)(chu)的(de)電(dian)(dian)(dian)(dian)是直流(liu)電(dian)(dian)(dian)(dian);而用來(lai)測(ce)量接(jie)地(di)電(dian)(dian)(dian)(dian)阻的(de)接(jie)地(di)搖表發出(chu)(chu)的(de)電(dian)(dian)(dian)(dian)就(jiu)是交流(liu)電(dian)(dian)(dian)(dian)。