Through modeling,analysis and calculation,it is found that the current through the neutral point reactor under the three-phase inconsistency operation condition is much larger than that during normal operation,but when the fault current value fails to start the breaker failure protection and trips,it may lead to further deterioration of the fault of the high-voltage reactor,including the overload of the neutral point reactor,the overheating of the winding,the fuel injection,the internal discharge,the damage to the electrical equipment of neutral point reactor,and even the fire accidents,which will result in economic losses.In order to prevent similar faults,disposal strategies and reasonable suggestions under the three-phase inconsistency operation condition are proposed,so as to avoid the burned-out of the neutral point reactor under the three-phase inconsistency operation condition.
关键词
三相不一致/开关拒动/处置策略/中性点电抗器/故障电流
Key words
three-phase inconsistency/breaker refusal of action/disposal strategy/neutral point reactor/fault current
维普
万方数据