A new approach to field modelling

Language:

 Examples gallery Step-by-step tutorials Verification examples Programming examples Distributive examples

>> >>

# Coil B: Coil with ferromagnetic core

DC current is applied to the electric coil with ferromagnetic core.

Problem Type:
Axisymmetric problem of DC magnetics.

Geometry:

All dimensions are in millimeters.

Given:
Relative permeability of the air and winding μ = 1;
Number of turns w = 400;
Applied current in wire I = 2 A;
B-H curve for the steel core:
 B (T) 0.2 0.6 1 1.2 1.4 1.6 1.7 H (A/m) 70 150 300 450 920 3000 5000

Problem:
1. Obtain the magnetic field in coil and air.
2. Get chart Flux Density along the rotational axis of the coil

Solution:
Define a spherical region solution. Radius of R = 2000 mm.
In the block core values put the B-H. In the block coil enter the total coil current 800 A. For point 2. task draw a line from the center of cores to the right end of the axis z.

Results:
Magnetic field distribution:

Flux density in the core: