Motor starting study

[NickParker]

Hi,

I have started to learn about the motor starting study by ETAP software. I have some questions,

Why Parameter Estimation Module is used in ETAP Motor starting study? though the the manufacturer provides machine performance characteristic data (i.e. Motor Speed Vs Torque, Current, and Power Factor curves)?
Why to derive equivalent circuit of a Motor? Don't the manufacturer provide all the data?
What it has to do with motor models such as single cage with/without deep bars, double cube with/without rotor cages?

 

[crshears]

Post would fit better in Electric Motors & Generators Engineering forum

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]