母线保护装置 meaning in English

busbar protection
busprotection

General specification for microprocessor - based busbar protection equipment
微机母线保护装置通用技术条件
But when fault was occurred , sometimes there would be great loss . for the reason , the paper put forward a microcomputer bus protection scheme suit for mv or lv power system with low current grounding based on the great researching about the working theory of current bus protections and the characteristic of mv or lv system with low current grounding . based on it , the paper has designed the platform of the hardware and the software programs
针对国内目前中、低压电网大都未装设母线保护装置，发生故障不能及时切除时造成很大损失的状况，本文在广泛研究当前主流的母线保护动作原理并认真分析了中、低压小电流接地系统特点的基础上，提出了一套适合中、低压微机母线保护装置的研制方案，并据此选择、搭建了硬件平台，设计了软件功能程序。