| 中压开关柜微机保护装置误指示故障分析 |
| |
| 引用本文： | 邹斌,钱志良,张福民,杨俊. 中压开关柜微机保护装置误指示故障分析[J]. 江苏电器, 2009, 0(7): 43-45 |
| |
| 作者姓名： | 邹斌 钱志良 张福民 杨俊 |
| |
| 作者单位： | 苏州大学机电工程学院;常熟开关制造有限公司; |
| |
| 摘 要： | 分析了两起中压开关柜内微机保护装置误指示的故障情况,确定引起故障的原因在于整流桥的泄漏电流超过了正常范围,提出在合闸回路前串接断路器常闭辅助触点,采用专用直流线路板,将发光二极管串接到微机保护装置的分合闸监视回路中等措施来避免此类故障发生。
|
| 关 键 词： | 中压开关柜 微机保护装置 故障分析 |
Fault Analysis on Wrong Indication of Microcomputer Protector Used in Medium-Voltage Switch Cabinet |
| |
| ZOU Bin,,QIAN Zhi-liang,ZHANG Fu-min,YANG Jun. Fault Analysis on Wrong Indication of Microcomputer Protector Used in Medium-Voltage Switch Cabinet[J]. , 2009, 0(7): 43-45 |
| |
| Authors: | ZOU Bin QIAN Zhi-liang ZHANG Fu-min YANG Jun |
| |
| Affiliation: | 1 School of Mechanical and Electrical Engineering;Soochow University;Suzhou 215123;China;2 Changshu Switchgear Mfg.Co.;Ltd;Changzhou 215500;China |
| |
| Abstract: | Analysis was made to two fault cases of wrong indication situation of the microcomputer protector used in the mediumvoltage switch cabinet,determining that the cause for fault was that the leakage currents of rectifying bridge was beyond normal range. This paper proposed that normally closed auxiliary contact of the circuit-breaker was connected in series before closing circuit. Special DC circuit boards were adopted to connect light emitting diodes in series with making and breaking monitoring circuits of ... |
| |
| Keywords: | medium-voltage switch cabinet microcomputer protector fault analysis |
| 本文献已被 CNKI 维普 等数据库收录！ |
