Problem about "Study of a single-phase transformer" lab experiment.
The question is given bellow :
Q. If the short-circuit current secondary winding 9 to 6 were 0.5A ac what would be the current through the primary winding 1 to 2?
Q. If the secondary winding 7 to 8 is short-circuited and the primary winding 5 to 6 is drawing 0,25A ac,
a. Calculate the short-circuit current through winding 7 to 8.
b. Why should these tests be performed as quickly as possible?
Q. If 240Vac we applied to winding 3 t 4, what would be the voltages across?
Q. Which of the two windings in procedure step 7 dissipates the most heat? Explain.
Q. If 240V ac were applied to winding 1 to 2 with winding 5 to 6 short circuited,
a. What would be the current in each winding?
b. How much larger is this current than the normal value?
c. How much more heat than normal is generated in the winding under these conditions?