This preview shows page 1. Sign up to view the full content.
EEL 3211
Test 2
February 29, 2008
•
Time limit: 50 minutes.
One (1) 8.5’ by 11’ sheet of notes allowed.
•
All Answers must include units.
Most of these problems are oneliners for each part!
1.
(5 points) Three identical resistors are connected in a delta configuration to a threephase line and
dissipate a total power of 60 kwatts. If the same resistors are now connected in a wye configuration to
the same threephase determine the new power dissipated.
2.
Three identical impedances are connected in a delta configuration across a 3phase, 550 volt (lineto
line) source. If the line current is 10 amps, calculate
a)
(5 points) the current (magnitude) in each impedance and
b)
(5 points) the magnitude of each impedance.
3.
(15 points) A 3phase load is connected to a 440 volt linetoline source and draws a current of 5 amps.
If the power factor of the load is 80%, calculate:
a)
(5 points) the total apparent power
b)
(5 points) the total real power
c)
(5 points) the total reactive power absorbed by the load.
4.
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 07/28/2011 for the course EEL 3211 taught by Professor Staff during the Summer '08 term at University of Florida.
 Summer '08
 Staff

Click to edit the document details