| 相敏保护在负荷控制中心的研究应用 |
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| 引用本文： | 郑丽君,宋建成,高云广,耿蒲龙.相敏保护在负荷控制中心的研究应用[J].煤炭学报,2012,37(6):1056-1060. |
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| 作者姓名： | 郑丽君 宋建成 高云广 耿蒲龙 |
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| 作者单位： | 太原理工大学 电气与动力工程学院，山西 太原 030024 |
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| 基金项目： | “十一五”国家科技支撑计划重点资助项目(2007BAB13B01,2007BAK29B05);山西省青年自然科学基金项目(2011021015-1) |
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| 摘 要： | 对比了电动机起动与三相短路故障的电气特性，设计了基于功率因数与电流值合成的相敏型三相短路保护电路，进行了数据测试，分析了保护特性，并将其应用于KJZ-4000-10（6）/3.3矿用隔爆兼本质安全型负荷控制中心。运行结果表明，相敏保护电路可有效区别电动机起动电流与三相短路电流，动作稳定灵敏，从未发生误动或拒动现象，实现了对矿井电网的可靠短路保护。
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| 关 键 词： | 相敏保护 负荷控制 短路故障 综采工作面 |
| 收稿时间： | 2011-06-20 |
Research and application of phase-sensitive protection in load control center |
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| ZHENG Li-jun,SONG Jian-cheng,GAO Yun-guang,GENG Pu-long.Research and application of phase-sensitive protection in load control center[J].Journal of China Coal Society,2012,37(6):1056-1060. |
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| Authors: | ZHENG Li-jun SONG Jian-cheng GAO Yun-guang GENG Pu-long |
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| Affiliation: | 1(1.College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 030024,China;2.College of Electronics and Information Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | According to the field requirements,the electrical characteristics between motor starting and three phase short-circuit were compared,the phase-sensitive protection circuit based on the synthesis of power factor and current amplitude was designed,the protection data was tested and the protection characteristic was analyzed.The phase-sensitive protection circuit was uesd in KJZ-4000-10(6)/3.3 flameproof and intrinsically safe load control center.The circuit can effectively distinguish motor starting current and three-phase short-circuit current and is stable,sensitive and reliable.It is proved that the short-circuit protection of power in underground is reliably realized. |
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| Keywords: | phase-sensitive protection load control short-circuit fault mechanized working face |
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