Fault protection method and device of cable line, electronic equipment and storage medium

• Main Authors: LI WANLIN, ZHOU XINQIANG, PENG YU, WAN CHENGSHAN, CHEN KAI, WANG JINHUANG, ZHAO BO, TANG TAO, PEI SHANSHAN, TANG PENGYU
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to the technical field of cable line fault protection, and discloses a cable line fault protection method and device, electronic equipment and a storage medium. The method comprises the following steps: determining fault time and fault current of single-phase grounding of a cable line; based on a preset corresponding relation, target arc arcing time corresponding to the fault current is determined, and the preset corresponding relation represents arc arcing time corresponding to different fault currents; and based on the fault time and the arcing time of the target arc, controlling the cable line to trip. According to the invention, the fault line is cut off before the fire occurs, and the fire caused by continuous operation of the single-phase grounding arc fault is avoided. 本申请涉及电缆线路故障保护技术领域，公开了一种电缆线路的故障保护方法及装置、电子设备、存储介质；其方法包括：确定电缆线路单相接地的故障时间和故障电流；基于预设对应关系，确定所述故障电流对应的目标电弧燃弧时间，所述预设对应关系表示不同故障电流分别对应的电弧燃弧时间；基于所述故障时间和目标电弧燃弧时间，控制所述电缆线路跳闸。本申请在火灾发生之前切除故障线路，避免单相接地电弧故障的持续运行引发火灾。