River Bend Down-Power Eruptions

I wonder why they do this? 

It damages and wears out equipment.

It is extremely risky asking for a employee mistakes or equipment shutdowms?  

9/8: 87% (today)

9/7: 97%

9/6: 92%

9/5: 61%

9/4: 100%

9/3: 100%

9/2: 100%

9/1: 100%

Grand Gulf recently did the same dance 

Well, I am getting paranoid...it was only rod pattern exchange. 61% is a little deep, but no reason for concern. It is a normal activity. The senior says River Bend has been behaving well recently.