70 kV/3.15 kA级电压电流双施加试验系统关键技术研究

Research on key technology of 70 kV/3.15 kA voltage and current double application test system

电流的致热效应、电压对绝缘材料的电气破坏以及电压和电流导致的振动等因素均会从各方面促使电气设备的运行性能老化,影响电力系统的安全稳定。文中针对上述问题开发了70kV/3.15kA级电压电流双施加试验系统,基于感应升流原理通过分析电压源的电压隔离技术,布设电压源和电流源的测控保护方案。并将电压电流整合到一体化显示控制平台,搭建了电压、电流双施加试验平台,实现了试验平台的智能化操控及应用。经测试该平台可以开展70kV/3.15kA级电压电流双施加试验。

The heating effect of the current,the electrical damage of the voltage to the insulating material,and the vibration caused by the voltage and current will all contribute to the aging of the electrical equipment in various aspects,affecting the safety and stability of the power system. In this paper,the 70kV/3.15kA voltage and current double application test system is developed for the above problems. Based on the principle of induction upflow,the voltage isolation method of voltage source and current source is set up by analyzing the voltage isolation technology of voltage source,and the voltage and current are integrated into one. The display control platform was built,and the voltage and current dual application test platform was built to realize the intelligent control and application of the test platform. After testing,the platform can carry out the voltage application of the 70kV/3.15kA double application test.