The advantage of the double squirrel cage induction motor over a single cage rotor is that its _______
(a) Efficiency is higher
(b) Power factor is higher
(c) Slip is larger
(d) Starting current is lower
I got this question in an online interview.
My question comes from Speed Control of Shunt or Separately Excited Motors topic in portion Speed Control of Direct Current Motors & Induction Motors of Electric Drives