Machine-translated by Google. Questions are authored in English.
Top

Discussion

The outer cage of a double cage rotor is made of

  • A.insulating material to separate the two cages
  • B.permanent magnet material bonded to the core
  • C.high-resistance material of small cross-section
  • D.low-resistance material of relatively large cross-section

Answer: C

Brass or bronze bars of modest section give the resistance that produces the starting torque, while the inner cage of copper carries the running current. The reactance of the inner cage is what keeps the current out of it at standstill.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.