Ripple coefficient on-line monitoring device for low-voltage direct-current system

The utility model discloses a ripple coefficient on-line monitoring device for a low-voltage direct-current system, and the device comprises a monitoring cabinet which is in a cuboid shape. Keys and a liquid crystal display are respectively arranged on the front end panel of the monitoring case; a control system is arranged in the monitoring case, so that the ripple coefficient of the direct current system can be monitored in real time, alarm information can be sent out through constant value setting, and long-term'sick 'operation of a high-frequency module is avoided; abnormal high-frequency modules can be isolated in time, and the N + 1 operation requirement is met. 本实用新型公开了一种低压直流系统纹波系数在线监测装置，包括监测机箱，所述监测机箱呈长方体状；所述监测机箱的前端板面分别设有按键和液晶显示器；所述监测机箱内设有控制系统，能够实时监测直流系统纹波系数，通过定值设定，能够发出告警信息，避免高频模块长期"带病"运行；能够及时将异常高频模块隔离出去，且满足N+1运行要求。