Q：Generator stator in the operation of three-phase current unbalance What are the reasons? How to deal with?

A: The main reasons are: 
1, generator internal faults such as: Stator Windings, winding break; 
2, the system load Unbalanced: If the system has a single phase electric stove, electric locomotives and other asymmetric load; 
3, the system failure occurred asymmetry protection tripping; 
4, the main generator breaker phase running. 

Treatment: 
One asks whether due to scheduling system caused the system caused by the case, you should adjust the generator active and reactive load, the difference of the three-phase current imbalance controlled within 8% Ie, and shall not exceed the rated maximum phase. 
2, treatment of non-full-phase generator main circuit breaker failure. 
3, if not a system malfunction and cause the main circuit breaker, deal with generators, transformers and other comprehensive qualifying examination, if necessary, power outage inspection. 
4, in the three-phase current imbalance is running, should closely monitor the generator rotor temperature must not exceed the permissible value.