Single Phase Generator (Power Factor)

jegues

Joined Sep 13, 2010
733
See figure attached for my attempt at part b).

What am I doing wrong? My voltage for the generator is slighty off.

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mik3

Joined Feb 4, 2008
4,843
See figure attached for my attempt at part b).

What am I doing wrong? My voltage for the generator is slighty off.
I has an angle equal to -arccos(PF).

Zazoo

Joined Jul 27, 2011
114
You chose to use the load current as your reference (0°), but it looks like in calculating -Vg + VTL + VL = 0 you switched to load voltage as the reference (VL = 860<0°).

jegues

Joined Sep 13, 2010
733
You chose to use the load current as your reference (0°), but it looks like in calculating -Vg + VTL + VL = 0 you switched to load voltage as the reference (VL = 860<0°).
That was it!

Thanks Zazoo!

nyasha

Joined Mar 23, 2009
90
jegues, how did you get the impedance of the transmission to be 0.2+0.4j

jegues

Joined Sep 13, 2010
733
jegues, how did you get the impedance of the transmission to be 0.2+0.4j
(2 + j4)mΩ/km

There's 100km,

(2 + j4)mΩ/km * 100km = (0.2 + j0.4)Ω