In a squirrel cage rotor, the bars or rods are oriented parallel to the axis of rotation.

In a squirrel cage rotor, the bars or rods are oriented parallel to the axis of rotation.

• A. True
• B. False
• C. Only during startup
• D. Only at no-load

Answer: (B)

The currents in a squirrel cage rotor form closed loops around the rotor’s circumference, not along the length of the shaft. The conducting bars are placed in slots around the periphery and are shorted by end rings at each axial end. This arrangement lets the induced currents circulate around the rotor’s cross-section (in planes perpendicular to the axis), which is what produces the torque when the stator’s rotating magnetic field passes by. So the bars are not oriented parallel to the axis of rotation; they form circumferential loops around the rotor, which is why the statement is not correct.

The currents in a squirrel cage rotor form closed loops around the rotor’s circumference, not along the length of the shaft. The conducting bars are placed in slots around the periphery and are shorted by end rings at each axial end. This arrangement lets the induced currents circulate around the rotor’s cross-section (in planes perpendicular to the axis), which is what produces the torque when the stator’s rotating magnetic field passes by.

So the bars are not oriented parallel to the axis of rotation; they form circumferential loops around the rotor, which is why the statement is not correct.