Recent content by honyeehong8692

Thank you very much, @Baluncore!

Hello all! I am carrying out the theoretical (that is, by calculation means) unsymmetrical fault calculations for three winding transformer. It is to my understanding that for the zero sequence impedance for a three winding transformer depends on the winding connections of the generator and...

Hello all! I'd like to clarify on the the differences of bipolar and unipolar voltages. I do understand that they both are used to trigger a number of semiconductor devices. Please and thank you!

Hello all, would like to ask what seems to be a general rule when designing power systems. In the power system design program which I just started to use. It is advised that: For every simulation to be run, it is best to have a "flat start" before running any faults. I'm not too sure...

im not too sure of the definition of solidly grounded transformer.. please and thanks! :)

@nascentoxygen I'm not too sure of the definition of solidly-ground earth.. please and thanks :)

Hello everybody, I'm a bit confused about the concept of solidly grounded tranformers. From my understanding, the wye connection of the transformer side would be followed by a resistor of a certain magnitude. Hopeful that my doubt would be clarified. Thanks!

here's a link to download the Solutions Manual for Grainger and Stevenson- https://docs.google.com/file/d/0B21HoBq6u9TsbmpNUFlfMEJ0T00/edit?pli=1

saturation..? Badabag, what does saturation mean? and how is it related to synchronous reactance and sequencing?

thanks, babadag!

thank you very much, foiwater!

btw, please and thank you!

BTW, a prompt reply is very much appreciated. Please and thank you!

Hello! This is my second post about sequence reactances. This time- its in induction motor. To my understanding ( once again ) - In any network (symmetrical or unsymmetrical) , there would be 3 components- positive sequence component, negative sequence component and zero sequence...

Hi all! I am currently learning fault study in power systems. To my understanding- In any network (symmetrical or unsymmetrical) , there would be 3 components- positive sequence component, negative sequence component and zero sequence component. Question: For generators and transformers ...