摘要
目前煤矿高压开关柜按照国家煤矿安监局发布的《禁止井工煤矿使用的设备及工艺目录(第二批)》要求,GGA1型开关柜中GL动圈反时限过流继电器广泛应用在煤矿井下开关柜中,这种开关柜动作时易产生电弧,烧毁触头,引起触头粘结工作不可靠,安全性差,《禁止井工煤矿使用的设备及工艺目录(第二批)》文件要求立即禁止使用,目前全国煤矿基本上已经完成高压开关柜更换,本文就目前煤矿再用高压开关现状做一个系统分析。
The old type high tension switchgear in coal mine has been forbidden by Stste Administration Of Coal Safty , The old type high tension switchgear is GGA1 type switchgear, it very unsteady, The safety is bad . Currently, according to the request of Stste Administration Of Coal Salty , our company Had already completed switchgear changed , This thesis Mainly elaborate the High Tension Switchgear Circulate a circumstance in coal mine.
出处
《科技信息》
2010年第21期J0025-J0026,J0024,共3页
Science & Technology Information
关键词
高压开关柜
断路器
选型
设计
High tension switchgear
Circuit-braerker
lectotype
Design
