机电工程技术
機電工程技術
궤전공정기술
MACHANICAL & ELECTRICAL ENGINEERING TECHNOLOGY
2014年
8期
88-89,152
,共3页
何超%卞和营%叶予光
何超%卞和營%葉予光
하초%변화영%협여광
煤电钻%短路保护%载频保护%可靠性
煤電鑽%短路保護%載頻保護%可靠性
매전찬%단로보호%재빈보호%가고성
coal electric drill%short circuit protection%carrier frequency protection%reliability
针对煤电钻载频短路保护装置时常出现误动作的原因进行了详细的试验分析，证明了实际应用中可以不考虑电缆的物理摆放状态；当负荷电缆长度小于150 m时载频短路保护装置工作基本正常；负荷电缆长度大于150 m时，载频短路保护装置工作不正常，且受电缆的截面积的大小影响将更加明显。
針對煤電鑽載頻短路保護裝置時常齣現誤動作的原因進行瞭詳細的試驗分析，證明瞭實際應用中可以不攷慮電纜的物理襬放狀態；噹負荷電纜長度小于150 m時載頻短路保護裝置工作基本正常；負荷電纜長度大于150 m時，載頻短路保護裝置工作不正常，且受電纜的截麵積的大小影響將更加明顯。
침대매전찬재빈단로보호장치시상출현오동작적원인진행료상세적시험분석，증명료실제응용중가이불고필전람적물리파방상태；당부하전람장도소우150 m시재빈단로보호장치공작기본정상；부하전람장도대우150 m시，재빈단로보호장치공작불정상，차수전람적절면적적대소영향장경가명현。
The maloperation cause of carrier frequency short circuit protection device for coal electric drill is tested and analyzed in detail in this research, which proves that Cable physical placement can be ignored in practical application, protect action of carrier frequency is regular when the length of cable is shorter than 150 m, and protect action is abnormal and effected obviously by cross-sectional area of cable when the length of cable is longer than 150 m.
