Modularized direct current feeder screen

• Main Authors: CUI YONGCAI, FENG QIANG, GUO LING, WANG PENG, WANG HAOBIN, HUANG NAN, HU HANWEN, YANG HUIXUAN, CHEN JIE, AI HONGTAO, YANG QI, DU DONGMING, CHEN DONG, LIU CHUNYI, DU MENG, SHI ZHIFENG, ZHANG YANG, GUO YUXIANG, JIN HUAWEI, LI DAILIN, ZHOU-YANG YUFEI, QIN WEIXIN, SHI XIANGYU, WANG LINGYU, DU XIAN, SHI WEI, MEN XIAOXI, CHEN GANG, CHENG ZETAO, CHEN JIAQI, ZHANG YING, NI CHENGXIANG, DONG JI, GAO XIANG, QIN QINGZHANG, XU ZHIGAO
• Format: Patent
• Language: Chinese; English
• Published: 23.01.2024
• Subjects: BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

A modularized direct current feeder screen is characterized in that a screen body is provided with a first direct current input switch connected with a direct current bus, a direct current power supply insulation monitoring device is arranged below a direct current voltmeter, and the direct current power supply insulation monitoring device communicates with modularized feed units below the direct current power supply insulation monitoring device through an RS485 bus. By combining the installation and wiring characteristics of the direct current feed cabinet, a direct current feed modularization and unitization design scheme is provided, and safe and rapid uncharged maintenance of a direct current feed loop is realized on the premise of ensuring reliable power supply; a direct current feeder circuit breaker, a leakage current CT, a signal lamp and an information acquisition board form a plug-in module structure, and a standardized feed unit is formed. The direct-current feed module is composed of a direct-curr