Recent content by Twinflower

Hi again Jim First off, I love your wandering! Every old piece of information presented in a new way makes another piece of the puzzle fall to its place. So, secondly i think you misunderstood my question. I often "play around" with the voltage setpoint to find the sweetspot where...

Thanks a bunch for a really understandable reply. New question: When exactly does the generator turn into a motor? When there is noe more reactive export - only import? Or when the reactive import is "so and so" large compared to rated power? Or when the reactive imported current is...

I again I Like Serena :) Sorry for my late reply, I've been busy at work lately. I'm currently in China (which is a long way from home for me) doing commissioning on a power plant on a major drill ship. We have 8 generators, 7,2 MW each at 11 kV. So this being my work, I often lay wake at night...

Hi I Like Serena! It's been awhile, that's true.. (But it's kind off a good thing that I figure out my questions before coming here to ask for help) Anyway. It's correct that a generator's voltage is dependent of the speed of the generator (or the prime mover per se). But it is not correct...

I spend huge amount of time and money doing gravitational experiments. (Undersigned is dressed in black and orange for the occation and is facing away from the camera)

Hi guys I am not sure if this is the right forum, so please feel free to move this topic around to where it belongs. This is not homework help, but something I have been wondering about lately. Anyway. I am wondering about som differences between VAr Import and reverse power for...

I actually forgot to multiply the input freq. with 5 Thank you by the way :)

Like your avatar :)

hehe, we where like 10 guys a the study a few days back, and *noone* thought about the sin(5*omega*t)-part, only of the amplitude part. So, i got some good news for them now, this has puzzled us for days. And boy do I feel stupid :) edit: And btw, I only have one dwarf, which is plenty for now...

OH! THATS why I got that the "real answer" coicided with the border frequency! 40000 = 5*8000 thank you plenty, Serena! I have 10 boys to tell some news now :)

I didnt find the arrow in latex, but in my hand written notation i always use that.

Hey Serena! Long time no see ;) I managed this one after realizing that I had to utlize the partial fraction-stuff :) But I still need some help in this other thread of mine about the fifth harmonic of a square wave passing trough a HP filter. And my exam is on monday :/...

4A/5pi

OK, I'm going to do this one more time from scratch. With partial fraction decomposition this time. I(s) = \frac{2}{s^2 + s} Step 1 - Factor the denomenator I(s) = \frac{2}{s(s + 1)} Step 2 - Set up the partial fractions stuff \frac{A}{s}+\frac{B}{s + 1} Step 3 -...

Thank you Ray. Can you tell me exactly what step in my first approach which was "illegal"?