Fault Calculations Using the MVA Method
Fault Calculations Using the MVA Method
(OP)
I would like to start a new thread and get some feedback and information on a topic that was previously discussed in this forum. The topic was on fault calculations using what is known as the MVA method.
Apparently there was paper written by Moon H Yuen, but unfortunately after searching I have been unable to locate a copy of this paper. Does anyone know where I might be able to get a copy of this paper? I already have the book "Short Circuit Calculations The Easy Way" by J.R. Seiver and John Paschal, but would like to read the original paper.
Secondly I have read the thread and comments from the original post, but would like to get some further feedback from others. What are the limitations of this method in particular in comparison to using the P.U. method. How much deviation is there in calculation of fault values and are there any pitfalls in particular? Does this method just provide a good cursory check of fault values or are the values good enough to perform coordination and protective relaying studies? I would welcome any comments since I think most can appreciate how tedious performing faults studies by hand can be particularly using the P.U. method. I am just suspect of any book that claims to be quote "The Easy Way" and have something new and profound. That is why I would like to see a copy of the Moon H Yuen paper. Especially since there is no mention of this paper or citation of it anywhere in the book. Perhaps it is more a case of what is old is new again.
Thank you in advance for your comments and feedback.
Apparently there was paper written by Moon H Yuen, but unfortunately after searching I have been unable to locate a copy of this paper. Does anyone know where I might be able to get a copy of this paper? I already have the book "Short Circuit Calculations The Easy Way" by J.R. Seiver and John Paschal, but would like to read the original paper.
Secondly I have read the thread and comments from the original post, but would like to get some further feedback from others. What are the limitations of this method in particular in comparison to using the P.U. method. How much deviation is there in calculation of fault values and are there any pitfalls in particular? Does this method just provide a good cursory check of fault values or are the values good enough to perform coordination and protective relaying studies? I would welcome any comments since I think most can appreciate how tedious performing faults studies by hand can be particularly using the P.U. method. I am just suspect of any book that claims to be quote "The Easy Way" and have something new and profound. That is why I would like to see a copy of the Moon H Yuen paper. Especially since there is no mention of this paper or citation of it anywhere in the book. Perhaps it is more a case of what is old is new again.
Thank you in advance for your comments and feedback.






RE: Fault Calculations Using the MVA Method
http://www.ieee.org
I also post a link to the previous thread to avoid any repetitions in this thread:
http://www.eng-tips.com/viewthread.cfm?spid=238&newpid=238&sqid=45636
RE: Fault Calculations Using the MVA Method
I appreciate the suggestion. I did do a search of IEEE for the Moon H Yuen paper and was not able to locate it. The on-line database is not archived as far back as when that was written so I have not been able to locate it there. I have also not had any success doing an on-line search either.
RE: Fault Calculations Using the MVA Method
RE: Fault Calculations Using the MVA Method
"Moon H. Yuen was a biotech engineer for Bechtel Corporation for 27 years. Realizing he will never be promoted from his mid-level management position, he formed his own company, YEI Engineers Inc."
Also:
YEI Engineers, Inc.
Contact: Sonia Siu
Address: 7700 Edgewater Dr #828
Oakland, CA 94621
Phone: (510) 383-1050
Don't know if it's the same Moon H. Yuen or if YEI is his company, but it's a start.
RE: Fault Calculations Using the MVA Method
If you give IEEE the above information, they should be able to locate a copy of the paper for you.
RE: Fault Calculations Using the MVA Method
Moon H Yuen's “MVA Method” paper may have been published in Transactions on Industry Applications, which is listed as published since 1965.
He was located in the East Bay area, so the Oakland address may be of his successor.
“Yuen M. H.” is listed in the author index at IEEEX online, but only on three more recent [1988-1990] conference/journal papers. The subject paper may predate the online author database.
RE: Fault Calculations Using the MVA Method
Short Circuit ABC - Learn It in an Hour, Use It Anywhere, Memorize No Formula
Moon H. Yuen, Senior Member, IEEE
RE: Fault Calculations Using the MVA Method
Thank you for the information and tracking that down. That will greatly help in locating a copy of the article.
Thanks,
umrpwr
RE: Fault Calculations Using the MVA Method
Alvin H. Knable "Electrical Power Systems Engineering Problems and Solutions," McGraw-Hill Book Company, 1967
Section 8-1 Two Ways to Calculate Symmetrical Short Circuits, on pages 227-230
There is a nomograph given in Figure 8-2 Momograph for Combining Short-Circuit kVA in Series.
This publication precedes the Yuen paper by about 7 years.
Unfortunately, there are no references where this method came from. It appears to be lacking any proof. There may be some restrictions to its validity and accuracy. I do not think that the current software is using it since they have to calculate unsymmetrical faults. This method appears to be suitable for symmetrical faults.
RE: Fault Calculations Using the MVA Method
A.D.Vidana
RE: Fault Calculations Using the MVA Method