05-28-2014 01:27 PM - edited 05-28-2014 01:30 PM
Good Evening
No suprises to what im looking to investigate today.
I have a initial circuit which contains a AC supply, Resistor and Inductor only, I must calculate the impedance, supply current, power factor & angle, and type of power that is consumed in the circuit.
I must then create a modified circuit in which i must improve the power factor to 0.95 and specify the value of capacitance required!
I must then calculate the impedance, supply current, power factor & angle and the type of power consumed in the circuit.
I have never really used multisim before, just want to make sure my calculations are correct as the values I have been given to work with are producing tedious amounts of impedance. My XL=24kOhm
I have tried to use the impedometer but not quiet sure how to wire it correctly. Same goes for the watt meter not sure how to wire the terminals for V and I.
Appreciate any help and advice I have provided some images of my initial circuit I have not specified the value of C as im not sure what it must be to give me a PF of 0.95.
Regards
Ps pardon the amatuer mistake forgot to add a ground (fool)
Carl
05-28-2014 05:21 PM
Those circuits are simple enough that you can readily calculate the values manually. So you should be able to check the results of your simulations against the analytic results.
XL = 2*pi*f*L = 75.4 kohm.
Lynn
05-29-2014 06:11 AM
HI Lynn
That is correct, I have already manually calculated the results mathematically. I just need to provide simulation evidence that they are correct.
Thus I am asking how can I obtain these results from multisim components and instruments!
Appreciate your help
Hass
05-29-2014 09:28 AM
Hi Hass,
Here is an article on Calculating the Impedance in Multisim.
http://digital.ni.com/public.nsf/allkb/9F8D30235DE3EC0186257592006B23A2
Similarly, you can add Expression to Calculate the Power Factor or other circuit parameters.
Hope this helps!
Regards,