煤电钻综合保护装置中载频短路保护技术研究  

Study on Carrier Frequency Short Circuit Protection of Integrated Protector for Coal Electric Drills

作　　者：叶予光[1] 卞和营[1] 王泳[1] 

机构地区：[1]平顶山学院,河南平顶山467000

出　　处：《煤矿机械》2009年第10期183-184,共2页Coal Mine Machinery

摘　　要：针对目前煤电钻综合保护装置中的载频短路保护电路进行实验分析,证明当电缆长度小于200 m时载频短路保护动作基本正常;当电缆长度大于200 m时,保护动作不正常,并且保护动作受电缆的截面积影响程度将更加明显。Carrier frequency short circuit protection of integrated protector for coal electric drill was analysed by doing experiment,proves protect action of carrier friquency is regular when the length of cable is shorter than 200m.The protect action is abnorrmal and effected obviously by cross-sectional area of cable when the length of cable is longer than 200m.

关 键 词：煤电钻 综合保护 载频保护 可靠性 

分 类 号：TM7[电气工程—电力系统及自动化]