Thank you Sohail! Best Zeya
On 23 Oct, 2014, at 5:16 am, Sohail Khan <[email protected]<mailto:[email protected]>> wrote: Hello Mr. Zeya, Its not very clear that what exact formula are you using for calculating the susceptance. However following is the way to calculate B in p.u. For the first row in your data: Total capacitance = C = 1.046429 \micro F Total charging capacitive reactance = X_c = 1/{2*pi*50*C} = 3041.86 \Ohms Total charging capacitive susceptance = B_c = 1/3041.86 = 3.2875 * exp^{-4} Total charging capacitive susceptance per unit = B_{c,p.u.} = B_c / Y_b Y_b = 1/Z_b = 1/529 Total charging capacitive susceptance per unit = B_{c,p.u.} = 3.2875 * exp^{-4} * 529 = 0.1739 p.u. Sohail. On Mon, Oct 20, 2014 at 8:30 AM, Zeya Aung [11547809d] <[email protected]<mailto:[email protected]>> wrote: Hi The values i’m getting for susceptance pu are way too high i.e. more than 10. Please have a look at the excel screen shot and the related formulas for calculating B. Which part am i doing wrong? Many thanks. <Screen Shot 2014-10-20 at 2.18.50 pm.png><Screen Shot 2014-10-20 at 2.28.44 pm.png><Screen Shot 2014-10-20 at 2.18.56 pm.png> <Screen Shot 2014-10-20 at 2.18.39 pm.png> Best Zeya --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Disclaimer: This message (including any attachments) contains confidential information intended for a specific individual and purpose. If you are not the intended recipient, you should delete this message and notify the sender and The Hong Kong Polytechnic University (the University) immediately. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited and may be unlawful. The University specifically denies any responsibility for the accuracy or quality of information obtained through University E-mail Facilities. Any views and opinions expressed are only those of the author(s) and do not necessarily represent those of the University and the University accepts no liability whatsoever for any losses or damages incurred or caused to any party as a result of the use of such information. --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Disclaimer: This message (including any attachments) contains confidential information intended for a specific individual and purpose. If you are not the intended recipient, you should delete this message and notify the sender and The Hong Kong Polytechnic University (the University) immediately. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited and may be unlawful. The University specifically denies any responsibility for the accuracy or quality of information obtained through University E-mail Facilities. Any views and opinions expressed are only those of the author(s) and do not necessarily represent those of the University and the University accepts no liability whatsoever for any losses or damages incurred or caused to any party as a result of the use of such information.
