Research And Application Of Time Delay Relay Switching Device

With the rapid development of social economy, the state actively increase the distribution network transformation investment, construction safety and reliable, economic, efficient and advanced technology, urban and rural areas as a whole, environmentally friendly power distribution network. This topic to shorten power lines across the resume sending elapsed time as a starting point, by reducing the distribution site operation, not only improve the work efficiency, reduce the work intensity of operators, significantly reduces the outage time of customers at the same time, ensure the residential users and reliable electricity. Based on the analysis of the current trip problem treatment and existing problems of pressure loss, found that accounts for about 85% of the distribution transformer do not have automatic switching function, at the same time have the function of the transformer, there are defects such as mistrip, false switching, must cause the staff to the scene to restore power. Not only reduces the working efficiency, the power loss, and delay the sending time, bring inconvenience to customers. So, this topic is based on this background, to explore the time relay delay switching device design, test and practical application. Paper first analyzes the background of this topic, necessity, and then through comparing field production conditions, puts forward the new device should have three performance, reliability, safety and economy, and studied the feasibility analysis and argument.Around the realization of the three new device performance is the core purpose, through comparison and analysis on the advantages and disadvantages of the various solutions of selected solution can decompose step by step selection, and determined the optimal solution. To the optimal solution for the script, formulate the implementation countermeasure, and countermeasures according to the table one by one, after the assembly parts, the new device into shape. Through the field effect check and benefit analysis of the new device, the device performance, the new device is developed. Finally, the use of the apparatus to standardized, and the results in the whole company for popularization and application.