高压变频器对电动机继电保护的影响及解决措施

Impact of High-voltage Inverter on Motor Relay Protection and Solution Measures

以具体的工程案例作为切入点,结合高压变频器对电动机产生的影响进行分析。定位高压变频器使用之后电动机出现差动保护的具体原因,并且结合变频改造的实际案例和变频工况,分析差动保护的具体优化方案,以此来进一步提升电动机保护的质量,确保可以为当前生产企业的节能减排以及稳定安全运行提供技术基础。

Using a specific engineering case as an entry point,we analyze the impact of high-voltage inverter on electric motors.The specific reasons for the differential protection of motor after the use of high-voltage inverter are located,and the specific optimization plan of differential protection is analyzed with the actual case of inverter transformation and inverter working conditions.In this way,the quality of motor protection is further improved to ensure that it can provide a technical basis for energy saving and emission reduction as well as stable and safe operation of current production enterprises.