As OCT has no magnetic saturation, no band limits, and can accurately and quickly transform the full-waveform current signal in principle, the authors put forward a new optical differential protection algorithm which directly use the integral values of the operating current and the. As OCT has no magnetic saturation, no band limits, and can accurately and quickly transform the full-waveform current signal in principle, the authors put forward a new optical differential protection algorithm which directly use the integral values of the operating current and the. In order to prevent grade-jumping tripping in coal mine distribution network, based on the analysis of the causes of grade-jumping tripping, several schemes to prevent grade-jumping tripping are compared and analyzed, and the fiber current differential protection scheme is suitable for application. Apply the SEL-411L for complete protection and control of any transmission line (short, long, or series-compensated). The SEL-411L provides differential and distance protection with both phase- and sequence-based operating elements for sensitivity and high-speed operation. You can choose from many. Abstract: In order to improve the speed and reliability of bus protection, people put forward the optical current transformer (OCT) replaced the traditional electric–magnetic current transformer. Transmission lines are a very important part of the power system. Problematic communication media can cause line current.
