Early power distribution networks were dominated by urban power distribution, with low voltage levels. With the advance of the industrial revolution and the booming development of social economy, a wave of technological innovation swept over the country, prompting the continuous evolution of power distribution lines, with 10kv, 20kv, 35kv and other higher voltage levels being erected, the structure of the tower becoming increasingly solid, and the material of the wires continuing to be improved, making it possible for power to be transmitted to a wider area, however, the Distribution lines are faced with the coexistence of overhead lines and cable lines, the interweaving of lines of different voltage levels, and many branch lines, when distribution lines fail, it is like looking for a needle in a haystack to determine which branch line the failure occurred.
The large number of branches means that different branches may face different types of faults. Some branch lines may be overloaded and lead to wire heating and burning; some may be short-circuited due to external factors such as tree contact and small animals climbing; and some may be grounded due to long-term natural aging, such as damaged insulation, loose joints, and other ground faults. Faced with such a variety of fault types, O&M personnel need to have rich experience and professional knowledge to accurately determine the cause of the fault, which increases the complexity of troubleshooting and waste of time. Adding distribution sensing, DX-WPS100-GZ03 DX-WPS100-GZ03 Distribution Line Fault On-line Monitoring System is able to realize the localization and eliminate the hidden danger.
Distribution line fault online monitoring system compared to the traditional traveling wave device has realized a major breakthrough. Its core lies in the distribution of wireless receiving sensors on the wire fault traveling wave and frequency current sampling directly, with synchronous timing clock synchronization error of not more than 1μs function, the system will be able to and real-time monitoring of the line's operating conditions, the type of line faults and the location of timely and accurate judgments as well as early warning reminders - diagnostic Metal/arc/low resistance/high resistance grounding, short circuit, clear fault time, fault distance and tower number, distance measurement accuracy within 150 meters.
Although the traditional fault indicator and one or two fusion switches also play a certain role in distribution line fault detection, but they have obvious limitations, in the diagnosis of fault types, they are often mainly for short-circuit faults, for other types of fault diagnostic ability is weaker, it is difficult to meet the needs of complex and changing distribution line fault detection.
And we Distribution line fault online monitoring system for the advantages and disadvantages of the traditional fault detection equipment, carried out a targeted Optimization and innovation, to achieve the effective avoidance of disadvantages and advantages of the full development, especially in expanding the application of travelling wave ranging technology to achieve significant results.
