A new approach to field modelling

Language:
Language Global English Deutsch Espanol Francais Italiano Danmark Ceske Chinese no-Pyccku


RSS Twitter Facebook Linkedin YouTube

>> >> >>

Three-phase busbar losses

Problem type:
Plane-parallel problem of AC Magnetics.

Geometry:

three-phase AC busbars

All dimensions are in millimeters.

Given:
Material of busbar - aluminum;
AC current I = 1000 A (R.M.S. value);
Frequency f: 50 Hz, 400 Hz, 1 kHz, 3 kHz.

Problem:
Calculate the dependence of the busbar losses to the alternating current frequency.

Results:
Current density distribution of a three-phase busbar (f = 50 Hz):

three-phase busbar current at 50 Hz

Busbar losses as a function of frequency:

Frequency

A

B

C

P [W/m]

50 Hz

25.3

25.0

25.0

PAC/PDC

1.05

1.04

1.04

P [W/m]

400 Hz

37.6

50.7

37.3

PAC/PDC

1.55

2.10

1.55

P [W/m]

1000 Hz

56

90

56

PAC/PDC

2.3

3.7

2.3

P [W/m]

3000 Hz

98

155

98

PAC/PDC

4.1

6.4

4.1

Download Download simulation files (files may be viewed using any QuickField Edition).