What is the relation between total iron loss for induction motors and the sum of stator tooth and core loss?

The total iron loss for induction motors is primarily comprised of stator tooth loss and core loss. In essence, when we refer to total iron loss in induction motors, we are collectively discussing the losses due to the magnetic properties of the iron parts within the motor, specifically within the stator.

1. Stator Tooth Loss: This occurs due to the alternating magnetic field that induces eddy currents in the stator teeth, causing heat generation through electrical resistance. This is a form of eddy current loss and it’s influenced by the frequency of the alternating current and the material properties of the stator.

2. Core Loss (or lamination loss): This is also a consequence of the alternating magnetic field but primarily occurs deeper in the core material of the stator, beyond just the teeth, affecting the entire iron core structure. This loss can be further divided into:

– Hysteresis Loss: Caused by the constant magnetization and demagnetization of the core material due to the alternating current, leading to energy dissipation.

– Eddy Current Loss: Similar to the loss in stator teeth but occurring throughout the core, caused by induced currents in the core material itself, which generate heat.

The relationship between total iron loss for induction motors and the sum of stator tooth and core loss is direct. The total iron loss can essentially be calculated by summing the stator tooth loss and the core loss. These components are interrelated, and their magnitude