The Design And Implementation Lightning Transmission Line Fault Location System

With the rapid development of modern information processing technology integrated intelligent systems in recent years, making the transmission line equipment on-line monitoring possible, monitoring lightning activity to accurately locate the fault point, it becomes a feasible way to carry on. Tripping caused by lightning barriers often cause huge economic losses and adverse social impact. Both in the electricity sector caused direct economic losses, but also to residents of electricity and adverse impact on agricultural production. Once the lines of lightning trip, how to find fault point as soon as possible, quickly disposed of promptly restore power, reduce losses and become an important issue. Related statistics show more than 80% of the line failure are caused by a single-phase short circuit to ground. Probability followed by a two-phase short circuit to ground fault, the proportion of between 2% to 3%, while the probability of a three-phase short circuit to ground fault occurs only about 1% to 3%, in a very long time cannot go to the detailed positioning of lightning fault location through technical means.China’s power grid is developing very rapidly, check and update tasks grid lines and other components of the device will be more onerous. So a high-reliability power line problems is bound to be a low probability, and once an accident occurs, the grid is responsible for the company to immediately locate the fault sources accurately and quickly eliminate the fault and restore power supply function. Lightning data system function is to provide customers with timely and lightning data, a variety of search functions statistical line failure, various data ranges and loops, loop editing. End customer is to use the network to obtain lightning information. Lightning website uses IT to get the customer’s needs, then send the customer service system needs to lightning. Lightning information service system will be extracted from the repository, combined with data about the geographical into customer needs format, use IIS Web becomes a way to pass to the final customer.This article lightning grid monitoring system built primarily on the grid of the real-time monitoring of company; expect an active role in the system’s ability to accurately record the real-time lightning in the area of the impact on the grid, the thundering beat of the accident probability of locating the source line fault and other issues. Also according to the actual situation of the development of the department’s response to a series of measures to try to reduce the probability of failure due to lightning factors grid, improving grid reliability and high where maintainability. Design and implementation of this system can achieve a good positioning of the transmission line faults lightning, lightning strikes to exclude faults in the grid provides a full range of support, enabling the management of the power grid failures lightning strike information.