西门子3AQ型断路器“N_2泄漏”故障的定位及处理  

Location and Treatment of Nitrogen Leakage Fault of Siemens 3AQ Type Circuit-breakers

作　　者：邱生[1] 张焰[2] 蒋伟毅[1] 

机构地区：[1]苏州供电公司,苏州215004 [2]上海交通大学电气工程系,上海200240

出　　处：《高压电器》2011年第8期75-79,共5页High Voltage Apparatus

摘　　要：西门子3AQ型断路器在电力系统中有大量采用。由于采用液压操作机构,"N2泄漏"是其最常见的故障信号。为了尽量降低在事故处理中的停电次数以提高供电可靠性,正确的分析及处理故障尤为重要。笔者从物理定位和电气定位两个方面对故障进行分析,给出两个方面的故障处理方法,最后通过3个实际发生的故障实例的处理过程进行了方法验证。The 3AQ type circuit-breakers are widely used in electric power system. However, nitrogen leakage signal is the most frequent fault signal for this type of circuit-breaker due to its hydraulic operating mechanism. In order to enhance power supply reliability, this paper analyzes both electric location and physical location of the fault, and gives the treatment methods for the two aspects. The treatment methods are verified by three practical fault diagnoses.

关 键 词：3AQ型断路器 故障 物理定位 电气定位 

分 类 号：TM561.3[电气工程—电器]