The operating environment of the 10kV distribution line is complex, so it is easily affected by the outside world, and the disconnection fault occurs. Therefore, it is particularly important to strengthen the detection of the disconnection fault of the 10kV distribution line, which is directly related to the operation level of the entire power grid, in order to ensure 10kV distribution. The safety of the operation of the electric line, the following describes the fault point detection of the distribution line in detail: 10kV distribution line fault point detection is an important part of 10kV distribution line positioning technology. There are many detection methods for 10kV distribution lines. Relevant workers need to start from the actual situation of distribution network and scientifically select 10kV distribution line fault point detection. Ways to improve the accuracy of fault detection at 10kV distribution lines. Break detection is a common method of detecting fault points. Maintenance personnel check the voltage value at each line node by dividing the 10kV distribution line into extremely short. This 10kV distribution line fault point detection method can be quickly The fault location can be located, and the voltage of each fault point can be detected in real time, which provides a basis for the subsequent work of the relevant staff. It is necessary for the relevant staff to note that the method used for single-phase disconnection fault detection and multi-phase fault detection is also different. When performing single-phase disconnection fault investigation, the relevant staff should pay attention to the negative sequence on both sides of the fault point. The change of current, because the current of single-phase disconnection fault flows along the line to the power supply, so the voltage value of each fault point is collected, and the fault location can be accurately located, so that the relevant staff can quickly locate the fault point. deal with. In the detection of fault points of multi-phase disconnection faults, it is necessary to pay attention to the changes of voltage and current on both sides of the fault point. The voltage on the power supply side has symmetry. Therefore, once a multi-phase disconnection fault occurs, it will be directly reflected in At the voltage of the fault point, the voltage on the load side is asymmetrical, and the current will also change greatly, and the relevant staff can find it during the test. Â The precise positioning cut-off test technology and pulse current method of 10kV distribution line disconnection fault are common positioning methods for 10kV distribution line disconnection fault. In the actual detection and positioning process, there is a certain error, so the relevant staff should Techniques such as releasing an audio signal are used as a method of assisting positioning. First of all, the relevant staff should carry out rough positioning of the fault point of the 10kV distribution line, find the position of the fault point within a certain range, then apply high voltage pulse current to it, and measure the power supply resistance at both ends of the line with professional instruments, so that Accurate positioning of the 10kV distribution line disconnection fault point. Before final positioning, the relevant staff should pay attention to take protective measures to avoid damage to the 10kV distribution line during the precise positioning process. In summary, the disconnection failure of the 10kV distribution line will affect the normal operation of the power system. Therefore, the relevant personnel should proceed from the actual situation and adopt different positioning technologies according to the nature of the fault point of the 10kV distribution line. Find the fault point of the 10kV distribution line and eliminate the broken line fault. Usb Data Cable,Charging Data Cable,Usb Data Transfer Cable,Fastest Data Transfer Cable Guangzhou YISON Electron Technology Co., Limited , https://www.yisonearphone.com