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GCDY-20A低电(dian)(dian)压(ya)测试(shi)仪生产厂家-上海冠测电(dian)(dian)气(qi)，高(gao)(gao)压(ya)开关(guan)动作电(dian)(dian)压(ya)试(shi)验(yan)(yan)(yan)（俗称(cheng)“（高(gao)(gao)）低电(dian)(dian)压(ya)试(shi)验(yan)(yan)(yan)”）是为保(bao)证电(dian)(dian)力系统高(gao)(gao)压(ya)断路(lu)器安全运行的一项基本(ben)预防性电(dian)(dian)气(qi)试(shi)验(yan)(yan)(yan)。目前，电(dian)(dian)力部门基本(ben)采用如下两种方(fang)式(shi)进行试(shi)验(yan)(yan)(yan)：1、用现(xian)(xian)场控制柜的直流系统作为试(shi)验(yan)(yan)(yan)电(dian)(dian)源，通过滑线变阻器调节电(dian)(dian)压(ya)大(da)小进行试(shi)验(yan)(yan)(yan)。这种方(fang)法大(da)的弊端为：若现(xian)(xian)场试(shi)验(yan)(yan)(yan)接(jie)(jie)(jie)线出(chu)现(xian)(xian)短路(lu)或(huo)直流直接(jie)(jie)(jie)接(jie)(jie)(jie)地，将直接(jie)(jie)(jie)影响到(dao)现(xian)(xian)场整个(ge)直流系统，轻则造成现(xian)(xian)场高(gao)(gao)压(ya)设备失去保(bao)护

我公(gong)司(si)研制推出新一代大(da)功率GCDY-20A低(di)电(dian)压(ya)测试仪开(kai)关动(dong)作(zuo)(zuo)(zuo)电(dian)压(ya)操作(zuo)(zuo)(zuo)电(dian)源。为(wei)现场(chang)高压(ya)开(kai)关特(te)性试验合分闸操作(zuo)(zuo)(zuo)提(ti)供独立的试验电(dian)源，为(wei)现场(chang)设备(bei)的安全运行提(ti)供了(le)条件。