王彦军. 新型微机漏电保护装置的研究[J]. 科学技术与工程, 2011, (28): .
wangyanjun.The research for a new computer leakage protection[J].Science Technology and Engineering,2011,(28):. |
| 新型微机漏电保护装置的研究 |
| The research for a new computer leakage protection |
| 投稿时间：2011-05-12 修订日期：2011-07-14 |
| DOI： |
| 中文关键词: 中性点不接地，漏电保护，零序电流有功分量，单片机 |
| 英文关键词:Neutralungrounded ,Leakage-Protection, Zero-sequence current active component, microchipcomputer |
| 基金项目: |
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| 摘要点击次数: 1067 |
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| 中文摘要: |
| 本文在分析了我国现有井下低压分支电网漏电保护装置的基础上，提出了新型微机漏电保护的原理。该原理利用井下电网发生单相接地故障时，故障支路的零序有功电流大于非故障相支路的特点，以AT89C51单片机为控制核心完成了有功电流选线的漏电保护装置的设计。 该方法不需要快速傅立叶分析、检测零序电流相位、计算有功功率等复杂的设计运算，简化了设计，使系统具有简单，判断迅速，灵敏的特点。 |
| 英文摘要: |
| Based on the analysis of our existing branch network in underground low-voltage leakage protection devices,design a new computer leakage protection . The principle use of the grid is underground single-phase fault. Fault slip road to the zero-sequence active current is greater than non-fault slip road characteristics, AT89C51 to control the core completed the active current alignment of leakage protection device design. The method does not need fast Fourier analysis,detection of zero-sequence current phase, the complex calculation of the active power design computation, simplify the design, the system is simple, quick judgment, sensitivity characteristics. |
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