基于光纤通信的选漏保护控制装置设计

Design of Selective Leakage Protection and Control Device Based on Optical Fiber Communication

煤矿井下环境恶劣,湿度大,温度高,漏电和单相接地故障经常出现在低压电网中,容易导致煤尘、瓦斯爆炸。本文介绍了一种基于光纤通信的智能控制装置,控制信号采用光纤传输,利用光纤的防暴、抗干扰强等优点,比原始的智能控制更能有选择性的断开故障线路,减少停电范围,提高供电可靠性。

Under a harsh environment of high humidity and high temperature underground tile coal mine, electricity leakage and single-phase ground fault are common occurrences at file low-voltage grid, which easily lead to coal dust and gas explosion. This paper describes an intelli- gent control device based on optical fiber communication, which transmit control signals through optical fiber by use of its advantages such as explosion-proof and disturbance-proof, so as to better selectively disconnect the fault line than the primitive intelligence control, lessening the power failure range and improve power supply reliability.