Phasor Diagram

  • Thread starter suspenc3
  • Start date
  • #1
402
0

Homework Statement



Three series elements have a.c. voltages across them of [tex]25cos(2 \pi 60t + 30') , 15cos(2 \pi 60t + 60') , 30cos(2 \pi 60t -45') [/tex] Volts respectively. The current flowing is [tex]5.2cos(2 \pi 60t + 25')A[/tex]

Using phasor diagram find

a)total voltage
b)phase angle between total voltage and current
c)overall power factor
d)total power and power dissipated by each element


The Attempt at a Solution



I found part a to be [tex]50.5cos(2 \pi 60t + 4.9')[/tex]

and part be, the angle is 20.1 degrees with the current lagging behind.

I found the PF to be 0.94, what about d)power diss....i found the total power to be 123W
 
Last edited:

Answers and Replies

Related Threads on Phasor Diagram

  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
0
Views
4K
  • Last Post
Replies
1
Views
983
  • Last Post
Replies
22
Views
7K
Replies
1
Views
314
  • Last Post
Replies
5
Views
3K
Replies
2
Views
2K
  • Last Post
Replies
17
Views
12K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
3
Views
930
Top