Hi, I have some trouble regarding the relationship between voltage and reactive power. From what I've read you control the amount of reactive power the generator is producing or absorbing by increasing or lowering the excitation of the generator. I have some trouble getting my head around this, so I was wondering if someone could show me the equation that shows me when I increase the excitation I increase the amount of reactive power into the grid and vice versa. I need to see the equation to see how this relates, thats how my brain is put togheter, or if someone could attempt to explain this to me I would be glad. Thank you for any help, best regards.