This paper lists some important factors of influencing safe operation of bow net system , introduces pantograph and anti - scrape bow protection device which is installed on service locomotive , and discusses a new technology of improving pantagraph current quality - self - adaptive bow head system 摘要列举了影响弓网系统安全运行的几项重要因素；介绍在运营机车上试验安装的受电弓防刮弓保护装置，以及因该装置所产生的提高受流质量的新技术自适应弓头系统；提出了两个系统整合的创新点。
