配电网络连接线一致性的不断电检测技术

Distribution network connecting consistency outage detection technology

针对配电网络中的10k V线路、配电变压器、分支箱、表箱、计量装置及实际用户之间存在着对应关系不一致的情况,传统方法采用电力载波信号通讯识别由于存在共高压串线、共地串线、共电缆沟串线等情况,经常会造成误判。该文介绍一种不需停电即可完成低压配电网络连接线一致性快速检测的方案和装置。该装置分核查主机和核查副机2部分,检测时,核查副机在被检测电路的潮流末端发出一个形变脉动电流信号,通过低频过零载波通讯技术沿电缆传输,如果主机收到副机的形变脉动信号说明接线正确;否则,被检测的电缆接线不正确。该方案对排查现场串户具有参考价值。

For 10 k V lines in the distribution network, distribution transformer, branch box, meter box, metering device and the actual user exists between the corresponding relationship is not consistent with the situation, the traditional method using PLC communication signal recognition due to the presence of total pressure on line, a total of on line, a total of cable trench on line, etc., often cause a miscarriage of justice. This paper introduces a new method and device for the rapid detection of the line of low-voltage distribution network with no power failure. The device is divided into verification host and verification of the auxiliary machine part 2, testing and verification of the auxiliary machine is detected in the circuit of the power flow end issued a deformation pulsing current signal, through the low frequency over zero carrier communication technology along a cable, if the host receives vice machine deformation fluctuation signals illustrate grounding line is correct; otherwise, were detected in the cable connection is not correct. The program has a reference value for the investigation of the scene family