The Power Factor Correction Equation

[headshrinker]

Homework Statement

An industrial electrical load operates from a 50 Hz 10 kV (rms) line with a power factor of 60% lagging. Determine a range of values of a capacitance that may be placed in parallel with the load to achieve a 90 to 95% lagging power factor.

Homework Equations

Power factor = cos $$\phi$$

The Attempt at a Solution

I am stuck because i thought I'd need at least the current or the power to work this out!

Any help is appreciated!

 

[tiny-tim]

hi headshrinker!

I am stuck because i thought I'd need at least the current or the power to work this out!

the power factor has nothing to do with power …

it's just a name for the cos of the "angle" of the impedance …

you're being asked to change the impedance ​