motor starting simulation
motor starting simulation
(OP)
I am using SKM software for performing Transient Motor Starting analysis. Actually I have modeled the same network in ETAP software also but I am getting different results for P.U. volatages on Motor buses & Generator buses. Now on which software I should rely? Please guide me..






RE: motor starting simulation
RE: motor starting simulation
RE: motor starting simulation
RE: motor starting simulation
What is the % difference. 0.6 pu out of how much?
RE: motor starting simulation
The other thing I would do is to do fault calcs at the closest bus to your motor in both models. If networks are modeled identically, your fault currents should be nearly the same.
Next, I'd run a normal power flow without this motor starting or running and check results in both programs.
If SC and PF results are in agreement, the difference must be in the locked rotor model of the motor under start.
I'm not familiar with either program, but they have to make assumptions on starting power factor or this data must be input by the user.
Lastly, look at the kw and kVAR flow into the motor under start in both models.
Let us know what you find. It's an interesting problem.
RE: motor starting simulation
You can test the two software, by using a known exempel, try a simple circuit with one source and one self (if you want R+jX) but constant R and X.
compare with your calculation note !
still use P.U .
RE: motor starting simulation