Recent content by td2010

The Second questions is to find the load voltages and load power when 1 of the transmission lines between transformer and load is opened ( neglect the internal impedance of the transformer and the transmission lines). (Steady state assumed)

Sorry for not clarifying the question in details. The problem questions is to find the load voltages and load power when 1 of the transmission lines between transformer and load is shorted ( neglect the internal impedance of the transformer and the transmission lines).

Can anyone have any comment on what will be the load voltages and load power of the system (3 phase 480V, 10 MVA Y transformer connected to A balance delta load of 100 ohm each legs). i looked at the following links which is similar to the questions but after 75 posts, the disagreement is still...

anyone has good source (reference or website ) for studying auto transformer ? how it actually connect and rated...etc. I am still confuse. :{ Thanks

I get confuse of the reply for this problem from thread http://engineerboards.com/index.php?showto...;hl=NCEES+Power IF the rating of the input of the transformer is 50KVA, should the output rating also be 50KVA ? Consider the transformer as a black box, what make the output power is greater...

Given 6 ways bus system : 3 generator inputs (S1, S2 and S3), 2 loads (P1 and P2), 1 motors (P and pf of motor). write power equation for the system. should it always be Stotal in = S total out

would the rating change if we connecting the 2 secondary coil ?

Given 6 ways bus system : 3 generator inputs (S1, S2 and S3), 2 loads (P1 and P2), 1 motors (P and pf of motor). write power equation for the system.