电动机热积累保护模型的分析与改进

Relay Protection Action Analysis For the Microprocessor-based Motor Thermal Protection Model

通过一起保护误动事件,对大型电动机微机型热积累保护模型进行了比较和分析,提出了改进对策,并经现场试验验证了正确性。

Based on a protection malfunction accident, this paper compares and analyzes the microcomputer-based heat accumulation protec- tion model of high capacity motor, puts forward some improvement countermeasures and tests its exactness by performing a field test.